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  1. Table of Contents
  2. Intro
  3. Design
    1. Stand
    2. Back
    3. Borders
    4. Thickness
    5. Temperature
    6. Build Quality
  4. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Gray Uniformity
    6. Viewing Angle
    7. Black Uniformity
    8. Reflections
    9. Pre Calibration
    10. Post Calibration
    11. 480p Input
    12. 720p Input
    13. 1080p Input
    14. 4k Input
    15. Color Gamut
    16. Color Volume
    17. Gradient
    18. Temporary Image Retention
    19. Permanent Burn-In Risk
    20. Pixels
  5. Motion
    1. Response Time
    2. Flicker-Free
    3. Black Frame Insertion (BFI)
    4. Motion Interpolation
    5. Stutter
    6. 24p Judder
    7. Variable Refresh Rate
  6. Inputs
    1. Input Lag
    2. Supported Resolutions
    3. Side Inputs
    4. Rear Inputs
    5. Total Inputs
    6. Inputs Specifications
  7. Sound Quality
    1. Frequency Response
    2. Distortion
  8. Smart Features
    1. Interface
    2. Ad-Free
    3. Apps and Features
    4. Remote
    5. Remote App
    6. TV Controls
    7. In The Box
    8. Misc
  9. Sizes and Variants
  10. Compared
  11. Conclusion
  12. Q&A
Reviewed on Mar 16, 2018 , Eric Bousquet, Ian Cumming

Sony X900F
TV REVIEW

Usage Ratings - Version 1.2
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Test Benches: test

  • 1.2: Winter 2018
  • 1.1: Summer 2017
  • 1.0: Winter 2015
  • 0.9: Winter 2014
  • 0.8: Winter 2013
8.3
Mixed Usage
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What it is General purpose. The TV will be used for a variety of content and usages. Movies at night, TV shows during the day, video games from time to time, etc.
Score components:
Recommended if under (USD)
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What it is: Maximum price to be a better value than its competitors.
How to use it: This product is the best choice in its range if you can find it below this price.
Automatically calculated every hour based on the scores and prices of all other products we've tested.
: $1,350
Value for price beaten by
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What it is: Product with the best value in this price range
Other best choice in a cheaper price range
Other best choice in a pricier price range
Automatically updated every hour based on the scores and prices of all other products we've tested.
: none
8.5
Movies
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What it is Movies in the dark. The TV will be used for watching movies in a controlled environment, directly in front, in a home theater way. Mostly only high quality content, like Blu-rays, UHD Blu-rays, streaming and a little bit of HDR.
Score components:
8.2
TV Shows
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What it is TV Shows in a bright living room. The TV will be used in to watch TV shows, in a bright room during the day, from multiple viewing positions at different angles. The content watched has an average quality: cable, streaming, SD channels, etc.
Score components:
8.1
Sports
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What it is Sports in a living room. The TV will be used to watch sports during the day, like football or hockey. Usually watched with a group, so from multiple viewing position.
8.6
Video Games
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What it is Video games. The TV will be used to play video games, directly in front, in a controlled light environment. Usually fast games, like online FPS, where motion blur and input lag is important.
8.3
HDR Movies
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What it is HDR Movies and TV shows. The TV will be used to watch 4k UHD HDR content, with a wide color gamut and a high peak brightness. Either via UHD Blu-rays or HDR streaming.
8.5
HDR Gaming
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What it is HDR Gaming. The TV will be used to play HDR video games using consoles that support it or on current generation gaming PCs. Xbox One S, PS4 Pro, GTX 10 series and AMD RX series graphics cards.
8.3
PC Monitor
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What it is PC Monitor. The TV will be used as a PC monitor, from 2-3 feet away, either for productivity purposes or gaming. Sharp text is important, as well as a high resolution.
Score components:
Type : LED
Sub-Type
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What it is: Type of display technology used by the TV.
When it matters: Different technologies have different performance and are suited to different uses
Good value: IPS maintains good color accuracy at an angle, but has a poor contrast ratio from in front. VA has great picture quality in front, but loses saturation at an angle. OLED maintains good color accuracy at an angle without any of the other issues seen with IPS and VA, as they keep good brightness and contrast at an angle.
:
VA
Resolution : 4k

The Sony X900F is a great 4k TV with impressive picture quality, especially in a dark room due to the high native contrast ratio and full array local dimming support. The TV excels at HDR as it can produce bright, vivid highlights. Motion handling is also excellent due to the fast response time and ability to flicker the backlight to clear up motion. The only main negative is the narrow viewing angle, so the best image quality is reserved for those directly in front of the TV.

See our recommendations for the best 4k TV.
Pros
  • Deep and uniform blacks
  • Excellent motion handling
  • Bright HDR highlights
Cons
  • Picture quality degrades at an angle

Test Results
Design 8.5
Picture Quality 8.2
Motion 8.7
Inputs 8.6
Sound Quality 6.1
Smart Features 8.0
Update 5/2/2018: The color gamut was erroneously measured at a 50% stimulus. It has been remeasured at 75% stimulus to be in line with our other TVs.

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8.5

Design

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Score components: Subjectively assigned
Sony X900F Design Picture
Curved : No

The design of the Sony 2018 X900F is great. It is quite different to the 'traditional' Sony aesthetics from the last few years, such as the X900E. The wide-set legs are the most noticeable difference, and do require a larger table but are designed so that the Sony soundbar can fit between them. There is basic cable management similar to the X900E down the back of the stand, but it isn't as good as the X930E which includes routing through the back panel. The build quality is very good and the TV feels solid.

Stand
Sony X900F Stand Picture

The stand is much wider than most other Sony TVs, as it leaves space for a soundbar between the two legs. It supports the TV well and feels secure. It also provides a channel at the rear of the legs to route cables through, which is good.

Footprint of the 55" TV stand: 39.2" x 10.6"

Back
Sony X900F Back Picture
Wall Mount : Vesa 300x300

The rear of the TV is quite basic, and is very similar to last year's model. There are two groups of inputs on the rear of the TV. One is inset and directed down, and can be difficult to access if the TV is placed close to the wall. The second group is directed out the side of the TV and provides easier access.

Borders
Sony X900F Borders Picture
Borders : 0.35" (0.9 cm)

The borders of the TV are quite thin, and look good. They look almost identical to other Sony TVs.

Thickness
Sony X900F Thickness Picture
Max Thickness : 2.76" (7.0 cm)

The TV has an average thickness when viewed from the side. It will stick out from the wall a bit more than some other TVs such as the X930E, but this isn't too much of an issue.

Temperature
Sony X900F Temperature picture
Maximum Temperature
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What it is: The peak temperature found on the TV.
When it matters: If the TV is placed in an enclosed space.
Good value: <35°C
Noticeable difference: 5°C
:
91 °F (33 °C)
Average Temperature
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What it is: The average temperature measured on the TV.
When it matters: If the TV is placed in an enclosed space.
Good value: <35°C
Noticeable difference: 5°C
:
87 °F (30 °C)

The X900F runs fairly cool, thanks to its local dimming saving power where peak brightness isn't needed. The TV has vents along the bottom edge and on the back near the top, which likely won't be blocked when the TV is wall mounted, which is good.

7.5 Build Quality
Sony X900F Build quality picture

The build quality of the X900F is good, and although the TV is almost entirely plastic, it does feel well constructed and solid.

The Sony X900F has a very good picture quality. When set in a dark room, the deep black it can produce help greatly with dark scene reproduction. This is mostly due to the impressive contrast ratio, good black uniformity, and decent local dimming feature. When set in a brighter room, the TV is also very good since it got a great SDR peak brightness and the screen finish is great at dealing with reflection and glare. The gray uniformity is good and dirty screen effect is not visible while watching sports like football or ice hockey.

When it comes to the viewing angle, the performance of the Sony X900F is disappointing and as such, the best picture quality is relegated to a sweet spot right in front of the TV. Finally, HDR looks great and this is mostly due to the high HDR peak brightness, which when paired with the local dimming, can reproduce very bright specular highlights.

8.8 Contrast
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What it is: Brightness difference between white and black. This is the main component of picture quality.
When it matters: Always, but especially when watching dark scenes.
Score components:
Sony X900F Checkerboard Picture
Native Contrast
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What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
5089 : 1
Contrast with local dimming
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What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with local dimming turned on (maximum) with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
5725 : 1

The native contrast ratio is excellent. When set in a dark room, it can display really deep blacks, making the TV a very good option if you have a dark home theater room.

When the local dimming is turned on, the contrast ratio on the checkerboard pattern goes up, but not by much since the zones are not small enough to have an impact on this pattern.

7.0 Local Dimming
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What it is: The lights behind the LCD layer adapt to the picture displayed, improving the contrast ratio.
When it matters: Dark scenes viewed in a dark room.
Score components: Subjectively assigned
Local Dimming
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What it is: Whether it has a feature that controls the LEDs behind the LCD layer, to match the picture and darkens the dark portion of it.
When it matters: On LED TVs only. Dark scenes viewed in a dark room.
:
Yes
Backlight
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What it is: Configuration of the lights of the backlight.
When it matters: Effectiveness of the local dimming.
Good value: Full-array/direct lighting is better for local dimming. As for the uniformity of the screen, it depends on the implementation. Some edge-lit TVs have more uniform blacks than some full-array TVs.
:
Full-Array

The full array local dimming of the Sony X900F is decent and better than most LED TVs. It is a small upgrade when compared to the 2017 X900E. The X900F performance is more similar to the 2017 Sony X930E when set side by side, although the X930E has slightly less abrupt transitions of the zones on movements.

Very similar performance to the Samsung Q8FN. The X900F has deeper black levels, but there is more visible blooming.

When set to 'High', the feature is very good at limiting blooming and keeping a good overall black level, but on some occasions, it may be a bit too aggressive, as small highlights can get dimmed on fast movements. Therefore, if you notice this behavior, you can set it the 'Medium', and it should behave more conservatively.

8.8 SDR Peak Brightness
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What it is: How bright the screen can get. Measured with local dimming and with SDR content.
When it matters: Bright living rooms; bright objects; SDR content.
SDR Real Scene Peak Brightness
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What it is: The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. Our Real Scene was selected to represent a more regular movie condition. All measurements are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming on, max backlight and with an SDR signal. Scene: here.
When it matters: When watching movies and TV shows in SDR.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
630 cd/m2
SDR Peak 2% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, present on screen for a short time
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
731 cd/m2
SDR Peak 10% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, present on screen for a short time
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
958 cd/m2
SDR Peak 25% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
771 cd/m2
SDR Peak 50% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
571 cd/m2
SDR Peak 100% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
633 cd/m2
SDR Sustained 2% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, persistent during a scene.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
694 cd/m2
SDR Sustained 10% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, persistent during a scene.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
941 cd/m2
SDR Sustained 25% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
767 cd/m2
SDR Sustained 50% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
568 cd/m2
SDR Sustained 100% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: When watching in a bright room.
Good value: > 300 cd/m²
Noticeable difference: 30 cd/m²
:
630 cd/m2
SDR ABL
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What it is: The coefficient of variation of the SDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters: Content with large bright areas, such as for PC or video game use, and sports such as hockey
Good value: <0.07
Noticeable difference: 0.01
:
0.026

Great SDR peak brightness, good enough for even a bright room. The TV's local dimming does a good job of boosting bright sections of the screen when other sections are dimmer, shown by how the smaller window tests are brighter than the larger ones. Overall, this brightness is a marked improvement over last year's X900E, and is far better than the brightness of many competing TVs like the Samsung MU8000 and LG SJ8500, though still not as bright as last year's X930E.

8.7 HDR Peak Brightness
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What it is: How bright the screen can get. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright living rooms; bright objects; HDR content.
HDR Real Scene Peak Brightness
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What it is: The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. This scene was selected to represent a more realistic movie condition. All measurement are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming, max backlight and over HDR signal. Scene: here.
When it matters: When watching movies or watching TV show in HDR.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
894 cd/m2
HDR Peak 2% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, present on screen for a short time; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
828 cd/m2
HDR Peak 10% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright objects, present on screen for a short time; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
988 cd/m2
HDR Peak 25% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms; bright objects in HDR video.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
764 cd/m2
HDR Peak 50% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
648 cd/m2
HDR Peak 100% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
653 cd/m2
HDR Sustained 2% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, persistent throughout a scene; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
788 cd/m2
HDR Sustained 10% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright objects, persistent throughout a scene; especially for HDR content.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
974 cd/m2
HDR Sustained 25% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms; bright objects in HDR video.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
761 cd/m2
HDR Sustained 50% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
645 cd/m2
HDR Sustained 100% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 550 cd/m²
Noticeable difference: 80 cd/m²
:
651 cd/m2
HDR ABL
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What it is: The coefficient of variation of the HDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters: HDR content with large bright areas, such as HDR gaming
Good value: <0.07
Noticeable difference: 0.01
:
0.023

Great HDR peak brightness; bright highlights in HDR content will be shown fairly bright, though not quite as bright as the 1000-4000 cd/m² they're intended to be. The TV's local dimming is able to boost highlights to be very bright, because the rest of the scene in HDR content is usually fairly dim when compared to SDR content, so the TV has more power budget for the hightlights. Overall the HDR brightness is better than last year's X900E.

7.5 Gray Uniformity
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What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
Sony X900F 50% Uniformity Picture
50% Std. Dev.
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What it is: Average squared difference of pixels when displaying a mid 50% gray.
When it matters: Solid colors. Sports, panning shots.
Good value: < 2.5%
Noticeable difference: 1%
:
4.335 %
50% DSE
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What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Solid colors. Sports, panning shots.
Good value: < 0.165%
Noticeable difference: 0.025%
:
0.165 %
Sony X900F 5% Uniformity Picture
5% Std. Dev.
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What it is: Average squared difference of pixels when displaying a mid 5% gray.
When it matters: Dark scenes.
Good value: < 1.15%
Noticeable difference: 1%
:
0.812 %
5% DSE
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What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.103 %

The gray uniformity is good. The 50% gray uniformity looks good, and the issues are mostly situated near the edge and corners, which are darker than the center of the screen. Besides that, dirty screen effect is not problematic since the center of the screen is even and it is not noticeable when watching sports like hockey, a sport where the slightest uniformity issues are usually very easy to see.

Looking at the 5%, we can see that both bottom corners are a bit brighter than the center and this is mostly due to the clouding of the panel, as the same brighter zone are also visible on the black uniformity. In any case, this is almost not noticeable when watching normal content, and as such, is not problematic.

4.9 Viewing Angle
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What it is: Color accuracy when viewed from the side.
When it matters: Large living rooms with multiple viewing positions.
Score components:
Sony X900F Color Shift Picture
Color Shift
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What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
18 °
Sony X900F Brightness Picture
Brightness
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What it is: Angle where the brightness drops to 50% of the brightness directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
48 °
Sony X900F Black Level Picture
Black Level
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What it is: Angle where the black level drops to 50% of the black level directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
12 °

Bad viewing angle, but fairly typical for a TV with a VA panel. Colors and blacks degrade significantly when viewed from even a small angle, while brightness degrades less at an angle. This bad viewing angle makes this TV not well suited for a room where people often sit to the side of the TV and view it at an angle; in such cases an IPS TV with a good viewing angle, like the LG SJ8500, may be better.

7.7 Black Uniformity
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What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
Sony X900F Native Black Uniformity Picture
Native Std. Dev.
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What it is: Average of the squared difference of the blacks.
When it matters: Dark scenes viewed in a dark room.
Good value: < 1%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
0.923 %
Sony X900F Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
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What it is: Average of the squared difference of the blacks with Local Dimming enabled
When it matters: Dark scenes viewed in a dark room.
Good value: < 1%
Noticeable difference: 1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
:
1.056 %

The Sony X900F black uniformity is very good. Looking at the native black uniformity picture (when the local dimming is turned completely off) our unit has some faint flashlighting, especially near the edge and the corners of the TV. The clouding is not too strong and when looking at normal content, should not be too apparent.

Turning on local dimming hides most issues, but it comes at the cost of blooming around bright objects (like the center cross in this picture).

Note that the screen uniformity varies per unit, and another X900F could be better or worse than the unit we bought.

8.7 Reflections
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What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components:
Sony X900F Reflections Picture Sony X900F Average Room Off Picture Sony X900F Bright Room Off Picture
Screen Finish
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What it is: Type of coating on the screen.
When it matters: Bright objects in the direct reflection path (for example, opposite the TV).
Good value: Glossy is good for ambient light, but not for direct reflections.
:
Semi-gloss
Total Reflections
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What it is: The amount of light which is reflected off the screen, in all directions.
When it matters: When watching TV in a bright room, with lamps, windows or walls which reflect directly off the screen.
Good value: 4.5 %
Noticeable difference: 0.5 %
:
3.5 %
Indirect Reflections
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What it is: The amount of light reflected off the screen, ignoring direct (mirror-like) reflections
When it matters: Watching TV in a bright room, without sunlight or lamps directed at the TV
Good value: 1.0 %
Noticeable difference: 0.5 %
:
0.4 %

The reflection handling of the Sony X900F is great. The semi-gloss finish does diffuse reflections slightly, but not as much as more hazy TVs such as the Samsung MU8000. The anti-reflective coating works well to reduce the total reflections and provides very similar performance to last year's X900E. This should be fine for most rooms, but reflections may be distracting in a very bright room or if sunlight falls directly on the TV.

8.9 Pre Calibration
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What it is: TV's color accuracy before a full calibration. Only the picture mode, color temperature, and backlight level were changed.
When it matters: All video on an uncalibrated TV. This represents most people's use cases.
Score components:
Sony X900F Pre Calibration Picture Sony X900F Pre Gamma Curve Picture Sony X900F Pre Color Picture
Picture Mode
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What it is: The picture mode used to do the 'Pre Calibration' measurements.
:
Custom
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
1.66
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
1.60
Gamma
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What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.20
Color Temperature
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What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color temperature use in the TV and film industry as program, film, and photography directors usually work on monitors calibrated on the 6500k color temperature and do their color correction base on what they see on those monitors.
When it matters: To get the most accurate picture when watching TV shows, movies or video games. This is particularly for skin tones.
Good value: 6500K
Noticeable difference: 400K
:
6537 K

Out of the box, the accuracy of the Sony X900F is excellent, and for most people, this TV could be used right away without the need for any calibration.

The most accurate picture mode out of the box is the 'Custom' picture mode, and it is also one of the picture modes that gives you the most control over all the picture setting available.

The 'Cinema Pro' is also very accurate, but this picture mode targets a gamma closer to 2.4, rather than our desired 2.2 target.

9.5 Post Calibration
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What it is: TV's color accuracy after a full calibration with a spectrophotometer.
When it matters: All video on a TV that has been professionally calibrated. This isn't that useful, because most TVs can achieve a pretty good calibration if you spend enough time on them.
Score components:
Sony X900F Post Calibration Picture Sony X900F Post Gamma Curve Picture Sony X900F Post Color Picture
Picture Mode
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What it is: The picture mode used to do the calibration. We usually go for the picture mode that gives us the more control over all the picture quality setting.
:
Custom
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.13
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
1.33
Gamma
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What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.19
Color Temperature
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What it is: The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color temperature use in the TV and film industry as program, film, and photography directors usually work on monitors calibrated on the 6500k color temperature and do their color correction base on what they see on those monitors.
When it matters: To get the most accurate picture when watching TV shows, movies or video games. This is particularly for skin tones.
Good value: 6500K
Noticeable difference: 400K
:
6495 K

The accuracy is outstanding after calibrating the white balance. Unfortunately, the lack of color management system on Sony's TVs can't be corrected further.

Overall, the calibration here did only bring some small corrections, as the TV was already very accurate out of the box, and the process was very fast and without issues.

You can see our recommended settings here.

8.0 480p Input
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What it is: Quality of a 480p input.
When it matters: Standard definition TV, DVDs.
Score components: Subjectively assigned
Sony X900F 480p Picture

Upscaling of low quality 480p content such as DVDs is good. Some halo artifacting is visible along edges, but there is a good range of options to customize the upscaling depending on preferences.

8.0 720p Input
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What it is: Quality of a 720p input.
When it matters: HD channels, some streaming videos.
Score components: Subjectively assigned
Sony X900F 720p Picture

720p content such as cable is upscaled well. Edges are smoothed to reduce blockyness, and some haloing artifacts are visible.

9.0 1080p Input
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What it is: Quality of a 1080p input.
When it matters: Blu-rays, streaming video, video files, video games.
Score components: Subjectively assigned
Sony X900F 1080p Picture

1080p sources such as Blu-rays look great once upscaled. The X900E was able to apply direct nearest neighbor upscaling when in the 'Graphics' picture mode, but this isn't available on the X900F (similar to the X930E with the same X1 Extreme Processor).

10 4k Input
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What it is: Quality of a 4k UHD input.
When it matters: Streaming video, UHD Blu-rays, some PCs.
Score components: Subjectively assigned
Sony X900F 4k Picture

Native 4k content such as UHD Blu-rays or high quality streaming content is displayed without any issues.

8.0 Color Gamut
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What it is: How many colors the TV can display.
When it matters: HDR content. Includes some streaming videos and UHD Blu-rays.
Score components:
Wide Color Gamut
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What it is: Whether the TV has an option to enable wide color gamuts.
When it matters: HDR content. Includes some streaming videos and UHD Blu-rays.
:
Yes
Sony X900F Color Gamut DCI-P3 Picture
DCI P3 xy
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What it is: Coverage of the DCI P3 colorspace on CIE 1931 xy.
When it matters: DCI P3 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
88.01 %
DCI P3 uv
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What it is: Coverage of the DCI P3 colorspace on CIE 1976 u' v'.
When it matters: DCI P3 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
93.93 %
Sony X900F Color Gamut Rec.2020 Picture
Rec 2020 xy
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What it is: Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters: Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
64.78 %
Rec 2020 uv
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What it is: Coverage of the Rec.2020 colorspace on CIE 1976 u' v'.
When it matters: Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
72.51 %
Sony X900F EOTF

Great wide color gamut; saturated colors in HDR content will be shown fairly well, but not quite as well as some other TVs like the LG OLED B7A. The TV's color accuracy for less saturated colors is also fairly good, so the overall HDR image will be accurate.

The TV's HDR EOTF follows the target PQ curve very closely up until it rolls off and clips at its peak brightness. The EOTFs in the 'Game' and 'Graphics' picture modes also follow the target closely. Users who want a brighter HDR image can increase the TV's 'Gamma' and 'Adv. contrast enhancer' settings, which will raise the EOTF to be brighter than the target curve.

Update 05/02/2018: The color gamut was erroneously measured at a 50% stimulus. It has been remeasured at 75% stimulus to be in line with our other TVs. The results remain almost identical.

7.1 Color Volume
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What it is: How many colors a TV can display at different luminosity levels.
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Sony X900F P3 Color Volume ITP Picture
Normalized DCI P3 Coverage ITP
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What it is: How much of the DCI-P3 colorspace a TV can display at different luminosity levels
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Good value: 80%
Noticeable difference: 5%
:
78.8 %
10,000 cd/m² DCI P3 Coverage ITP
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What it is: How much of the DCI-P3 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
:
45.4 %
Sony X900F 2020 Color Volume ITP Picture
Normalized Rec 2020 Coverage ITP
Show Help
What it is: How much of the Rec. 2020 colorspace a TV can display at different luminosity levels
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Good value: 80 %
Noticeable difference: 5 %
:
62.4 %
10,000 cd/m² Rec 2020 Coverage ITP
Show Help
What it is: How much of the Rec 2020 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
:
36.0 %

Decent color volume in HDR. The Sony X900F's local dimming does a good job of extending its wide color gamut down to a range of different brightness, so darker colors will look as saturated as brighter colors.

9.0 Gradient
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What it is: How finely levels of color can be displayed.
When it matters: Details in shadows, sky and skin tones. Matters more for HDR content.
Sony X900F Gradient Picture
Color Depth
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What it is: Number of bits per pixel to represent a specific color. Note: we consider 8-bit with dithering to be equivalent to 10-bit, as long as the 10-bit gradient looks smooth.
When it matters: HDR content like UHD Blu-ray players. Won't matter for cable TV, regular Blu-ray movies, video game consoles or content displayed from a Windows PC. Those are limited to 8-bit color.
Good value: 10-bit.
Noticeable difference: 1 bit.
:
10 Bit
Red (Std. Dev.)
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What it is: The standard deviation of the color differences (dE) between subsequent 10 bit red shades.
When it matters: Details in skin tones, sunsets, and other reddish objects. Matters more for HDR content.
Good value: < 0.12 dE
Noticeable difference: 0.01 dE
:
0.092 dE
Green (Std. Dev.)
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What it is: The standard deviation of the color differences (dE) between subsequent 10 bit green shades.
When it matters: Details in ocean shades and other greenish objects. Matters more for HDR content.
Good value: < 0.12 dE
Noticeable difference: 0.01 dE
:
0.083 dE
Blue (Std. Dev.)
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What it is: The standard deviation of the color differences (dE) between subsequent 10 bit blue shades.
When it matters: Details in skies, water and other blueish objects. Matters more for HDR content.
Good value: < 0.12 dE
Noticeable difference: 0.01 dE
:
0.083 dE
Gray (Std. Dev.)
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What it is: The standard deviation of the color differences (dE) between subsequent 10 bit gray shades.
When it matters: Details in dull colors, such as shadows, glow and urban scenes. Matters more for HDR content.
Good value: < 0.12 dE
Noticeable difference: 0.01 dE
:
0.057 dE

Excellent gradient performance; no major banding is visible during normal usage when playing 10 bit content (such as HDR). When playing SDR some banding may be visible when the content is 8 bit, but this banding can be reduced by enabling Sony's "Smooth Gradation" feature.

10 Temporary Image Retention
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What it is: How much a static image is retained on a TV screen after a certain amount of time.
When it matters: When watching TV show, playing video games or when using your TV as a PC monitor.
Sony X900F Image Retention Picture
IR after 0 min recovery
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What it is: Image retention measured right after the static image exposure, without recovery time.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 2 min recovery
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What it is: Image retention measured after a recovery time of 2 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect
Noticeable difference: 0.015%
:
0.00 %
IR after 4 min recovery
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What it is: Image retention measured after a recovery time of 4 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 6 min recovery
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What it is: Image retention measured after a recovery time of 6 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 8 min recovery
Show Help
What it is: Image retention measured after a recovery time of 8 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %
IR after 10 min recovery
Show Help
What it is: Image retention measured after a recovery time of 10 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.00 %

No temporary image retention could be noticed on the Sony X900F white running our test. This is good for those wanting to use this TV as a PC monitor. Note that this is a different result from our 2017 X900E, as the later did show sign of very faint image retention.

10 Permanent Burn-In Risk
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What it is: The risk of developing a persistent image retention, also known as burn-in, after being exposed to a static image for a prolonged time
When it matters: When watching TV shows, playing video games or when using your TV as a PC monitor where static content is present
Score components:
Permanent Burn-In Risk
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What it is: If the TV faces a risk of developing permanent burn-in after being expose, for a long period of time, to static images.
When it matters: When watching TV shows with static logos or banners (news or sports channels), when playing video games with a HUD (head up display), and when using a TV as a PC monitors.
:
No

We don't expect VA panels to experience permanent image retention, as the VA panel in our long-term test appears immune.

Pixels
Sony X900F Pixels Picture

The pixels look almost identical to the X900E as seen here, however, there is a small notch at the bottom of each sub-pixel.

Motion looks great on the Sony X900F; it has a fast pixel response time, a backlight without much visible flicker, an optional flicker mode, 120 fps motion interpolation, and it can remove 24p judder from all common sources. However, there are some aspects of its motion that could be better; its fast pixel response time can make low frame rate content look a little stuttery at times, and its optional flicker mode doesn't flicker at 60 Hz.

9.6 Response Time
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What it is: Amount of blur in fast motion.
When it matters: Sports, video games.
Score components:
Sony X900F Motion Blur Picture Sony X900F Response Time Chart
80% Response Time
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What it is: How quickly pixels can reach 80% of a full transition from one color to another.
When it matters: Fast movement.
Good value: < 8 ms
Noticeable difference: 4 ms
:
3.1 ms
100% Response Time
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What it is: How quickly pixels can fully transition from one color to another.
When it matters: Fast movement.
Good value: < 20 ms
Noticeable difference: 10 ms
:
10.2 ms

Excellent pixel response time, good enough for fast-moving content. Most of the blur in the photo is caused by 60 fps persistence; almost no ghosting trail is visible behind the moving logo, which is excellent. One flaw though is the severe overshoot on the 0-20% transition; this means that some bright ghosting may be visible in dark scenes during fast motion.

9.5 Flicker-Free
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What it is: How noticeable flicker is on the screen, when all optional flicker has been disabled.
When it matters: All usages, but particularly when viewing fast motion (such as in sports and video games) or when using the TV as a PC monitor.
Score components:
Sony X900F Backlight chart
Flicker-Free
Show Help
What it is: Whether the screen will be perceived as having no flicker during normal viewing conditions.
When it matters: When flicker is especially bothersome, such as when using the TV as a PC monitor.
Good value: Yes
:
No
PWM Dimming Frequency
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What it is: The flicker frequency of the screen, when all optional flicker has been disabled.
When it matters: All usages, but particularly when viewing fast motion (such as in sports and video games) or when using the TV as a PC monitor.
Good value: 0 Hz or very high frequencies (> 300 Hz). Frequencies that are multiples of 60Hz are better.
:
720 Hz

The backlight does flicker, unlike some other Sony TVs like the 2017 X800E; and this flicker is always present, even at maximum backlight. However, because the flicker frequency is a very fast 720 Hz it will be almost unnoticeable to most people.

6.0 Black Frame Insertion (BFI)
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What it is: How effective the TV's flickering capabilities are in making motion look clearer, when flicker is desired.
When it matters: When flicker is desired by the user. Flicker is especially useful to make motion look clearer when viewing 60 fps content (sports, video games) and when using motion interpolation.
Sony X900F BFI Picture Sony X900F BFI Frequency Picture
Optional BFI
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What it is: Option to turn the screen black between frames.
When it matters: When flicker is desired by the user. Flicker is especially useful to make motion look clearer when viewing 60 fps content (sports, video games) and when using motion interpolation.
Good value: Yes
:
Yes
Min Flicker for 60 fps
Show Help
What it is: Lowest possible frequency of flickering pattern when playing 60 fps content.
When it matters: When viewing fast motion such as sports and video games.
Good value: 60 Hz
Noticeable difference: 20 Hz
:
120 Hz
60 Hz for 60 fps
Show Help
What it is: Whether the screen can flicker at 60 Hz when playing 60 fps content.
When it matters: When playing 60 fps content, such as sports and video games.
Good value: Yes
:
No
120 Hz for 120 fps
Show Help
What it is: Whether the screen can flicker at 120 Hz when playing 120 fps content.
When it matters: When playing 120 fps content, such as when using motion interpolation on a 120 Hz TV.
Good value: Yes
:
Yes
Min Flicker for 60 fps in Game Mode
Show Help
What it is: Lowest possible frequency of flickering pattern when playing 60 fps content in Game Mode.
When it matters: When playing video games with fast motion.
Good value: 60 Hz
Noticeable difference: 20 Hz
:
120 Hz

The 2018 Sony X900F can flicker its backlight at 120 Hz, which makes motion look clearer by reducing persistence blur. Unfortunately, it can't flicker at 60 Hz, so 60 Hz content will have visible duplications in its motion, but some may find it preferable to no flicker. On Sony TVs, BFI is activated by setting "Motionflow" to "Custom" and increasing the "Clearness" slider.

Sony has implemented a new BFI mode on "Clearness = 1", which they call "X-Motion Clarity". When in this mode the real scene brightness decreases by about 60 nits compared to with no flicker("Clearness = 0"), but as the brightness of the screen decreases its flicker becomes more severe, similar to how a TV with PWM dimming behaves. When this is combined with local dimming, dimmer zones of the screen will have clearer motion than brighter zones. This is different from the flicker behavior in "Clearness" 2 and Max, where zones of different brightness will have similar flicker and motion clarity. We recommend "Clearness = 1" when users want clearer motion but don't want to sacrifice too much screen brightness. Note that none of these 'Clearness' settings affect the input lag in the 'Game' picture mode.

10 Motion Interpolation
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What it is: Also known as 'Soap Opera Effect'. It is an optional feature that increases the frame rate of the video, smoothing movement.
When it matters: If you like the look of smoothed video. Not everyone does.
Sony X900F Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
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What it is: Whether the TV can take a 30 fps input and heighten the frame rate to at least 60 fps.
When it matters: 30 fps or lower videos. Includes movies, TV shows, some video games.
:
Yes
Sony X900F Motion Interpolation (60 fps) Picture
Motion Interpolation (60 fps)
Show Help
What it is: Whether the TV can take a 60 fps input and heighten the frame rate to at least 100 fps.
When it matters: 60 fps videos. Includes some video games, some sports channels.
:
Yes

The TV has a 120 Hz panel, and its processing can interpolate lower frame rate content to 120 fps to match the panel. This optional feature is also called the "soap opera effect". It produces smoother looking motion but can look unnatural to some people, and also adds small artifacts in its processing that can be bothersome to some.

6.8 Stutter
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What it is: Jarring effect caused by static frame time during motion sequences
When it matters: When watching content with long panning shots and other smooth movement
Frame Hold Time @ 24 fps
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What it is: Time that frame is static during 24Hz videos such as movies
When it matters: When watching movies and other low frame rate content which contain panning shots
Good value: < 24 ms
Noticeable difference: 5 ms
:
31.5 ms
Frame Hold Time @ 60 fps
Show Help
What it is: Time that frame is static during 60 fps content such as TV shows
When it matters: When watching 60 fps content containing slow panning shots (such as field sports)
Good value: < 24 ms
Noticeable difference: 5 ms
:
6.5 ms

The TV is decent at showing low frame rate content smoothly (like movies and 30fps video games), but the TV's fast pixel response time can make motion look a little stuttery, especially in wide panning scenes, because the frame stays static for 31 ms. 60 fps content looks smoother because the frames are on screen for a shorter amount of time.

10 24p Judder
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What it is: Whether 24p content can play without any judder.
When it matters: Only 24p content (mostly just movies).
Judder-Free 24p
Show Help
What it is: Judder-free movies over 24p signal.
When it matters: Blu-ray and DVD movies; 24 hz PC signal.
:
Yes
Judder-Free 24p via 60p
Show Help
What it is: Judder-free movies over 60p signal.
When it matters: Movies from streaming devices (Apple TV, Fire TV, etc.); 60 hz PC signal.
:
Yes
Judder-Free 24p via 60i
Show Help
What it is: Judder-free movies over 60i signal.
When it matters: Movies from cable/satellite boxes.
:
Yes
Judder-Free 24p via Native Apps
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What it is: Judder-free movies when playing from native apps.
When it matters: Movies from streaming native apps (Netflix, Amazon TV, etc.).
:
Yes

The Sony X900F can display, without judder, 24p movies no matter from which sources they are playing. To achieve this though for every source including the native Netflix app, you need to set (from the Motion tab in the picture setting) the 'Motionflow' to 'True cinema' and set 'CineMotion' to 'High'. This isn't needed for direct 24p sources.

0 Variable Refresh Rate
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What it is: How frequently the TV can refresh and show new frames, and whether it can vary its refresh rate in real time using technologies like HDMI Forum's Variable Refresh Rate
When it matters: Mostly for gaming, but does provide a little better motion during normal usage.
Score components:
Native Refresh Rate : 120 Hz
Variable Refresh Rate
Show Help
What it is: Feature that allows the TV to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters: Almost every usage, but is most noticeable when gaming where constant fluctuation in framerate cause distracting artifacts.
:
No
VRR Maximum
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What it is: The maximum frequency covered by the Variable Refresh Rate feature of the TV.
When it matters: Any time the VRR feature is enabled.
Good value: Matches Refresh rate
Noticeable difference: 10 Hz
:
N/A
VRR Minimum
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What it is: The lowest frequency covered by the TV's Variable Refresh Rate feature.
When it matters: When using the VRR feature of the TV at lower frame rates.
Good value: 30 Hz
:
N/A
VRR Supported Connectors
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What it is: The inputs which support a variable refresh rate (eg. HDMI, DisplayPort)
When it matters: When gaming with different consoles or graphics cards.
:
N/A

The TV doesn't support a variable refresh rate.

8.6

Inputs

Show Help
Score components:

The Sony X900F supports all the common input signals, including HDR. It has great low input lag for 4k signals, and good low input lag for 1080p signals, so it will be very responsive when gaming. It also has some useful PC monitor features such as 4:4:4 chroma subsampling support and 1080p @ 120 Hz support. Note: Only HDMI ports 2 & 3 support full bandwidth, but HDMI port 3 is also the audio return channel. If you have a receiver which supports ARC and more than 1 device which requires the full bandwidth of HDMI then you might have some issues connecting all of your devices. In this case it may be best to connect your receiver using an optical (Toslink) cable.

8.4 Input Lag
Show Help
What it is: Delay between input and onscreen reaction.
When it matters: Video games; when TV is used as PC monitor.
1080p @ 60Hz
Show Help
What it is: Lowest input lag possible on TV with a 1080p @ 60Hz input.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
40.9 ms
1080p @ 60Hz + HDR
Show Help
What it is: Lowest input lag possible on the TV when displaying 1080p @ 60Hz with HDR.
When it matters: HDR video games from a console outputting a 1080p signal.
Good value: < 40 ms
Noticeable difference: 15 ms
:
40.8 ms
1080p @ 60Hz Outside Game Mode
Show Help
What it is: Lowest input lag possible on the TV when displaying 1080p @ 60Hz in a fully featured picture mode.
When it matters: For playing video games while retaining access to all features of the TV.
Good value: < 40 ms
Noticeable difference: 15 ms
:
103.5 ms
1080p @ 120 Hz
Show Help
What it is: Lowest input lag possible on TV with a 1080p @ 120Hz input.
When it matters: When the TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
12.9 ms
4k @ 60Hz
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
24.2 ms
4k @ 60Hz + HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz with HDR.
When it matters: HDR Video games.
Good value: < 40 ms
Noticeable difference: 15 ms
:
24.2 ms
4k @ 60Hz @ 4:4:4
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4.
When it matters: PC Monitor
Good value: < 40 ms
Noticeable difference: 15 ms
:
24.1 ms
4k @ 60Hz @ 4:4:4 + 8 bit HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4 with HDR enabled at 8 bit
When it matters: PC Monitor with an HDR capable graphic card
Good value: < 40 ms
Noticeable difference: 15 ms
:
24.1 ms
4k @ 60Hz Outside Game Mode
Show Help
What it is: Lowest input lag possible on the TV when displaying 4k @ 60Hz in a fully featured picture mode.
When it matters: For playing video games while retaining access to all features of the TV.
Good value: < 40 ms
Noticeable difference: 15 ms
:
86.9 ms
4k With Interpolation
Show Help
What it is: Lowest input lag for 4k content when the motion interpolation feature is turned on.
When it matters: When you want to play video games with the Soap Opera Effect enabled.
Good value: < 40 ms
Noticeable difference: 15 ms
:
80.9 ms
4k @ 120 Hz
Show Help
What it is: Lowest input lag possible on TV with a 4k @ 120Hz input.
When it matters: When the TV is used as PC monitor.
Good value: < 40 ms
Noticeable difference: 15 ms
:
N/A
Variable Refresh Rate
Show Help
What it is: Lowest input lag possible on TV with a variable refresh rate
When it matters: When gaming with a device which supports variable refresh rates, such as the Xbox One X or a PC.
:
N/A

Great low input lag, especially when playing 4k video. The 1080p input lag is higher than for 4k, but is still good enough for most gaming. Overall, the input lag is very similar to last year's X930E, which is understandable because both use Sony's 'X1 Extreme' processing engine (unlike the 2017 X900E); however, many TVs from other brands have lower input lag, such as the Samsung MU8000, LG SJ8500, and TCL P607.

10 Supported Resolutions
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What it is: Different resolutions supported by TV.
When it matters: PC monitor usage.
Score components:
  • 17% 1080p @ 60Hz @ 4:4:4
  • 17% 1080p @ 120Hz
  • 17% 1440p @ 60Hz
  • 17% 4k @ 30Hz @ 4:4:4
  • 17% 4k @ 60Hz
  • 17% 4k @ 60Hz @ 4:4:4
1080p @ 60Hz @ 4:4:4
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What it is: Crisp text on 1060p @ 60 hz signal.
When it matters: PC productivity and 60 fps gaming.
:
Yes
1080p @ 120Hz
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What it is: 120 fps 1080p signal supported.
When it matters: PC gaming.
:
Yes
1440p @ 60Hz
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What it is: 60 fps 1440p signal supported.
When it matters: PC productivity and gaming.
:
Yes
4k @ 30Hz @ 4:4:4
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What it is: Crisp text on 4k @ 30 hz signal.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz
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What it is: 60 fps 4k signal supported.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz @ 4:4:4
Show Help
What it is: Crisp text on 4k @ 60 hz signal.
When it matters: Productivity and 60 fps gaming in 4k.
:
Yes
4k @ 120Hz
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What it is: 4k 120Hz signal supported
When it matters: PC gaming
:
No

All common resolutions are supported. 4k @ 60 Hz @ 4:4:4 or 4:2:2 is only possible on HDMI inputs 2 and 3, and only when 'HDMI Enhanced Format' is enabled. 4:4:4 chroma subsampling is only shown properly in the 'Game' and 'Graphics' picture modes.

Side Inputs
Rear Inputs
Total Inputs
HDMI : 4
USB : 3
Digital Optical Audio Out : 1
Analog Audio Out 3.5mm : 1
Analog Audio Out RCA : 0
Component In : 0
Composite In : 1
Tuner (Cable/Ant) : 1
Ethernet : 1
DisplayPort : 0
IR In : 1
SD/SDHC : 0

There is one composite input (labeled 'Video In') however it is a 3.5mm jack, and so requires an adapter for most devices. An example of the correct adapter can be found here

Inputs Specifications
HDR10
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What it is: Standard HDR format.
When it matters: Most common format. All UHD Blu-ray discs are required to have it.
:
Yes
Dolby Vision
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What it is: Better format, due to its dynamic nature.
When it matters: Dolby Vision mastered content. Current available from streaming services (Netflix, Amazon Video), some Blu-Ray players, the Apple TV 4k and ChromeCast Ultra.
:
No
HLG
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What it is: HLG or Hybrid Log Gamma is a broadcast HDR format.
When it matters: HLG capable sources such as Youtube or OTA broadcasts in specific regions. Backwards compatible with SDR TVs.
:
Yes
3D
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What it is: Optional 3D video capability on TV.
When it matters: 3D movies & videos.
:
No
5.1 Passthrough ARC Dolby Digital
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What it is: TV can receive and pass Dolby Digital 5.1 signal to receiver via HDMI ARC.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough ARC DTS
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What it is: TV can receive and pass DTS 5.1 signal to receiver via HDMI ARC.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough Optical Dolby Digital
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What it is: TV can receive and pass Dolby Digital signal to receiver via digital optical.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough Optical DTS
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What it is: TV can receive and pass DTS signal to receiver via digital optical.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
HDMI 2.0 Full Bandwith
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What it is: HDMI 2.0 is the main used HDMI standard and supports a range of video resolutions and refresh rates up to 4k@60Hz, with a total maximum bandwidth up to 18Gbps.
:
Yes (HDMI 2, 3)
HDMI 2.1 Full Bandwidth
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What it is: HDMI 2.1 is the latest update to the HDMI standard and supports a range of higher video resolutions and refresh rates including 8K60 and 4K120, and resolutions up to 10K. Dynamic HDR formats are also supported, and bandwidth capability is increased up to 48Gbps.
:
No
ARC
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What it is: Audio Return Channel (ARC) enables a TV to transmit, via an HDMI cable, audio data to an A/V receiver, without the need for any extra audio cables.
When it matters: When connecting your audio/video receiver directly to your TV via an HDMI cable.
:
Yes (HDMI 3)
USB 3.0
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What it is: USB 3.0 is the latest USB standard which can transfer data up to 5 Gbit/s, and is easily recognizable due to its blue color-coding of the connector.
:
Yes (1)
HDCP 2.2 : Yes (HDMI 1,2,3,4)
CEC : Yes
MHL : No
Variable Analog Audio Out : Yes
Wi-Fi Support : Yes (2.4 GHz, 5 GHz)
6.1

Sound Quality

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What it is: How well and accurately the audio is reproduced.
When it matters: When a good and accurate sound reproduction is needed.
Score components:

The sound quality of the Sony X900F is below-average. It does have a well-balanced sound, and it can get fairly loud. However, they don't have any sub-bass, and they are prone to pumping and compression artifacts under heavier loads. So adding a sound bar to your setup would be beneficial.

6.5 Frequency Response
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What it is: How accurately the sound level of each frequency is being produced.
When it matters: For a balanced and neutral sound.
Sony X900F Frequency Response
Low-Frequency Extension
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What it is: The lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters: Movies, Gaming. Shows how extended the bass is.
Good value: < 60Hz
Noticeable difference: 10Hz
:
95.14 Hz
Std. Dev. @ 70
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What it is: The amount of deviation (weighted standard deviation) in frequency response measured at 70dB SPL, as compared to a target response that would sound perfectly balanced to most people.
When it matters: Shows the TV's frequency response at quiet listening levels
Good value: < 4 dB
Noticeable difference: 0.5 dB
:
4.01 dB
Std. Dev. @ 80
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What it is: The amount of deviation (weighted standard deviation) in frequency response measured at 80dB SPL, as compared to a target response that would sound perfectly balanced to most people.
When it matters: Shows the TV's frequency response at moderate listening levels
Good value: < 4 dB
Noticeable difference: 0.5 dB
:
4.40 dB
Std. Dev. @ Max
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What it is: The amount of deviation (weighted standard deviation) in frequency response measured with the TV at maximum volume, as compared to a target response that would sound perfectly balanced to most people.
When it matters: Shows the TV's frequency response at under maximum load
Good value: < 4 dB
Noticeable difference: 2 dB
:
6.81 dB
Max
Show Help
What it is: Maximum volume reached by the TV at their optimum viewing distance (size dependent)
When it matters: For listening to loud audio.
Good value: > 88 dB
Noticeable difference: 2 dB
:
90.0 dB SPL
Dynamic Range Compression
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What it is: The amount of difference between the TVs frequency response performance at 70dB SPL and Max dB SPL. Too much compression will result in pumping in the sound.
When it matters: When an accurate and free-of-pumping performance is required at higher volumes
Good value: < 3dB
Noticeable difference: 0.5
:
4.25 dB

Average frequency response. It has a relatively deep bass, but not deep enough to produce deep rumbles (i.e. explosion sound effects). The frequency response is quite flat and well-balanced, however, the TV was not able to remove the resonances of the test room (high-bass and low-mid) due to a lack of self-calibrating system. Additionally, the TV does get pretty loud, but they could produce some pumping and compression artifacts near their maximum volume.

5.1 Distortion
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What it is: Deformation of an output signal compared to its input, usually clipping, harmonic distortion, or inter-modulation distortion caused by non-linear behavior of the sound system.
When it matters: When a clean, pure and transparent reproduction is desired.
Score components:
Sony X900F Total Harmonic Distortion
Weighted THD @ 80
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What it is: The overall amount of harmonic distortion measured at 80dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at moderate listening levels.
Good value: < 0.100
Noticeable difference: 0.100
:
0.117
Weighted THD @ Max
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What it is: The overall amount of harmonic distortion measured at the TV's maximum SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters: How pure the sound is at moderate listening levels.
Good value: < 0.100
Noticeable difference: 0.100
:
9.787
IMD @ 80
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What it is: The average amount of inter-modulation distortion produced by the TV under maximum load. The percentage shown here is the average result of 3 separate test signals/standards: SMPTE, DIN, & CCIF
When it matters: When a clean and free of aliasing reproduction is desired
Good value: < 5%
Noticeable difference: 2
:
16.81 %
IMD @ Max
Show Help
What it is: The average amount of inter-modulation distortion produced by the TV under maximum load. The percentage shown here is the average result of 3 separate test signals/standards: SMPTE, DIN, & CCIF
When it matters: When a clean and free of aliasing reproduction is desired
Good value: < 5%
Noticeable difference: 2
:
72.21 %

Sub-par harmonic distortion performance. Similar to other Sony TVs we have measured, this TV has little distortion at low volumes. However, at maximum volume, the X900F produces a lot of distortion, but this kind of distortion won't be very audible with real-life content (movies, music...).

8.0

Smart Features

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Score components:
  • 42% Interface
  • 2% Ad-Free
  • 37% Apps and Features
  • 16% Remote
  • 3% Remote App
Sony X900F Smart TV Picture
Smart OS : Android TV
Version : 7.0

The X900F runs Sony's version of the Android TV interface, which isn't as easy to use as some other smart platforms but has a lot of apps, and access to the amazing Google Assistant. The TV's main interface is unfortunately quite crowded, and often has moments of lag and choppy animations. This is redeemed somewhat by Android TV's vast Google Play Store, which has a dizzying array of apps, some shared from Android phones and tablets. Android TV also has access to the amazing Google Assistant voice control feature, that can directly execute many commands on the TV like "open Netflix" and "how's the weather?".

7.0 Interface
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What it is: The usability, features and performance of the main interface of the TV, not including the interfaces of the apps themselves.
When it matters: Anytime when using the TV, but especially when changing settings and using apps.
Score components: Subjectively assigned
Ease of Use
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What it is: How easy the interface is to navigate, affected by the organization of its layout, placing frequently accessed elements in areas that are faster to access, etc.
When it matters: When using the smart features.
:
Average
Smoothness
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What it is: How smooth the interface is to navigate, affected by lag and frame drops.
When it matters: When using the smart features.
:
Not Smooth
Time Taken to Select YouTube
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What it is: How long it takes to select YouTube for launch, starting from HDMI 1 input, when YouTube is placed first on the list of apps or added as a shortcut. This does not include app launch time, and does not use a fixed YouTube button on a remote. This serves as an indication of the time needed to select any app.
When it matters: When launching any app.
:
3 s
Time Taken to Change Backlight
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What it is: The time it takes to navigate to the 'Backlight' setting ('Brightness' on Sony TVs). This serves as an indication of how long it takes to navigate to basic TV settings.
When it matters: When changing TV settings.
:
6 s
Advanced Options
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What it is: Whether advanced options and settings are available, such as color calibration.
When it matters: When customizing the TV and using the smart features.
:
Many

The Android TV interface isn't as easy to use as some other smart platforms. The home screen is very long, requiring a lot of scrolling in order to see everything. The performance is also quite inconsistent; sometimes the TV will open menus quickly and have smooth animations, but other times menus will lag for a second or two before opening, and their animations will be choppy. The home menu is especially slow to open, which is unfortunate because of how often it needs to be used. This is alleviated somewhat by the many buttons on the Sony remote and the voice control feature.

10 Ad-Free
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What it is: Whether or not ads can be found on the TV's smart platform.
When it matters: When using the smart features.
Score components:
Ads
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What it is: Whether the TV's main interface has ads. This does take into account ads in third-party apps.
When it matters: When using the smart features.
:
No
Opt-out
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What it is: Whether you can opt out of the ad services or not. A TV only passes this test if it allows you to remove them completely, not only disable the personalized advertising.
When it matters: When using the smart features.
:
N/A
Suggested Content in Home
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What it is: Whether suggested content appears in the TV's home menu or main menu. Suggested content can include recommended movies, TV shows, YouTube videos etc.
:
Yes
Opt-out of Suggested Content
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What it is: Whether the suggested content feed in the home menu can be removed or hidden
:
Yes

Sony's Android TV implementation has no ads, which is great. By default the first row of the home menu is full of suggested content, but this can be disabled in the TV's 'Home' settings.

9.0 Apps and Features
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What it is: The usability, features and performance of apps and other smart features.
When it matters: Only when using smart features such as apps, casting and USB playback.
Score components: Subjectively assigned
Sony X900F Apps Picture
App Selection
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What it is: The number and variety of apps available to download for the smart platform.
When it matters: When downloading new apps.
:
Very Many
App Smoothness
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What it is: How smooth it feels to navigate the interfaces of apps, affected by lag and frame drops.
When it matters: When using apps.
:
Average
Cast Capable
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What it is: Whether apps on a phone or tablet can cast content to the TV.
:
Yes
USB Drive Playback
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What it is: Whether the TV can play content from a drive connected to one of the TV's USB ports.
:
Yes
USB Drive HDR Playback
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What it is: Whether HDR files played from a USB drive can be displayed properly.
:
Yes
HDR in Netflix
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What it is: Whether HDR content on Netflix can be played back in HDR using the native Netflix app.
:
Yes
HDR in Amazon Video
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What it is: Whether HDR content on Amazon Video can be played in HDR using the native Amazon Video app.
:
Yes
HDR in YouTube
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What it is: Whether HDR content on YouTube can be played in HDR using the native YouTube app.
:
No

One of Android TV's strengths is access to the Google Play Store, which has more apps than almost all other smart platforms. The apps run fairly smoothly and with minimal lag, unlike the frequent mini-hangs of the main Android interface.

8.0 Remote
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What it is: The usability and features of the TV's physical remote.
Score components: Subjectively assigned
Sony X900F Remote Picture
Size
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What it is: How big the remote is
:
Large
Voice Control
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What it is: The capabilities of the TV's voice control feature
:
Many Features
CEC Menu Control
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What it is: Whether the remote can act as a universal remote for HDMI CEC enabled devices. This was tested on our Samsung UBD-K8500 4K Blu-ray player, and may not be valid for other CEC devices as implementations vary by manufacturer.
:
Yes
Other Smart Features
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What it is: Whether the remote has any other smart features, such as a pointer, universal remote support for non HDMI CEC devices, etc.
:
No

The X900F comes with Sony's lower-cost remote with rubber chunk buttons, unlike the better remote that came with last year's X900E. The remote is still very usable, and has more buttons than most remotes, at the cost of being larger than most remotes.

The remote can connect to the TV by Bluetooth so that its microphone can be used with the TV's Google Assistant voice control feature. Google Assistant can perform a lot of actions on the TV, as well as interface with the rest of the Google ecosystem; commands like 'open YouTube', 'switch to HDMI 3', 'pause video', 'how's the weather' and 'turn off the TV' all work well, though commands to change picture settings like 'set the brightness to 20' and 'switch to Game mode' don't work.

7.0 Remote App
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What it is: The features of the official phone and tablet app for the TV.
Score components: Subjectively assigned
Sony X900F Remote App Picture
Acts as the Remote
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What it is: Whether the remote app can emulate all the buttons of the physical remote.
:
Yes
Launches Apps and Inputs
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What it is: Whether the remote app can launch the TV's apps and change between its inputs.
:
Both
Inputs Text in YouTube
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What it is: Whether the remote app can enter text for YouTube searches.
:
No
Inputs Text in Netflix
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What it is: Whether the remote app can enter text for Netflix searches.
:
No
Streams Device Files
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What it is: Whether the remote app can stream files from the phone or tablet to the TV, files such as pictures, music and video.
:
No
Controls TV Settings
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What it is: Whether the app can change all or some of the settings on the TV, such as the backlight.
:
No
Voice Control
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What it is: Whether the remote can send voice commands to the TV.
:
Yes

Sony's 'Video & TV SideView' smartphone app has more functionality than Google's Android TV app, but it's still not as good as the apps of some other platforms like Roku. Sony's app can act as multiple kinds of remotes, like a touchpad, mouse pointer or a clone of the physical remote buttons. The app can also use the phone's microphone to send voice to the TV's Google Assistant voice control feature, which is handy.

TV Controls
Sony X900F Controls Picture

Like most Sony TVs, the only buttons on the TV are three small buttons on the back edge. This simple three button system can be used to change inputs, speaker volume and tuner channel, as well as act as the TV's power button.

In The Box
Sony X900F In The Box Picture

  • Manual
  • IR Blaster
  • Remote
  • Batteries

Misc
Power Consumption : 64 W
Power Consumption (Max) : 108 W
Firmware : PKG6.5160.0144NAA

Differences between Sizes and Variants

We tested the 55" (XBR55X900F). For the most part, we expect our review to be valid for the 49" (XBR49X900F), 65" (XBR65X900F), 75" (XBR75X900F) and 85" (XBR85X900F).

The European variant of the TV is also known as the XF90 and doesn't come in the 85" size, but we expect it to offer the same performance.

If someone comes across a different type of panel or if their Sony X900F doesn't correspond to our review, let us know and we will update the review. Note that some tests such as the gray uniformity may vary between individual units.

Size US Model Alternative Name EU Model VESA Mount Size
49" XBR49X900F XBR-49X900F KD-49XF9005 200x200
55" XBR55X900F XBR-55X900F KD-55XF9005 300x300
65" XBR65X900F XBR-65X900F KD-65XF9005 300x300
75" XBR75X900F XBR-75X900F KD-75XF9005 400x300
85" XBR85X900F XBR-85X900F - 400x400

Compared to other TVs

Sony X900F Group Shot Picture
Top left: Sony X900E (XBR55X900E). Bottom left: Samsung Q8C (QN55Q8C). Middle: Sony X900F (XBR55X900F). Top right: Sony X930E (XBR55X930E). Bottom right: LG B7A (OLED55B7A).  Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Sony X900F is a solid performer across the board. It can produce deep blacks aided by local dimming for watching movies in a dark room, has excellent motion handling for sports or fast-paced games, and can produce bright, saturated highlights for HDR. Having said that, it faces tough competition in the price bracket - especially from last year's X900E.

Sony X900E
49" 55" 65" 75"

The X900E is Sony's 2017 model which the X900F replaces. Both TVs offer very similar performance and picture quality as they can produce deep dark scenes with local dimming, have similarly excellent motion handling and use the same Android smart platform. The X900F has a few slight advantages - it gets a bit brighter for HDR and has a very slightly shorter blur trail behind fast-moving objects. The X900F will also be updated to support Dolby Vision HDR in the future, but this isn't a big difference. Overall though, it isn't worth spending more for these marginal differences so go with whichever is cheaper.

LG B7A
55" 65"

The LG B7A is an OLED TV with excellent picture quality due to the ability to produce perfect blacks, and it also remains accurate when viewed at an angle, which is great for those with wide seating. Unfortunately, it comes at a high price and isn't perfect, as it suffers from some temporary image retention and for risky usages, there may be a chance of burn-in. If you can afford it and want the best picture quality, then go with the LG B7A, but if you're worried about the chance of burn-in, then there are better options.

Sony X930E
55" 65"

The X930E is one of Sony's high-end models from 2017. It has a very similar performance to the X900F but has edge-lit backlighting, a higher peak brightness, and better build quality. For the same price the X930E offers better value, unless you plan on watching a lot of sports or playing games.

Samsung Q8FN
55" 65" 75"

The Q8FN is one of Samsung's latest QLED TVs. It performs very similarly to the X900F. The Q8FN has better dark room perfomance, whereas the X900F is brighter and better suited to a bright room. It is also very expensive, so people should go with the cheaper X900F.

Conclusion
SEE PRICE
Amazon.com

8.3Mixed Usage
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What it is General purpose. The TV will be used for a variety of content and usages. Movies at night, TV shows during the day, video games from time to time, etc.
Score components:
Great TV for a range of usages. High contrast ratio and local dimming results in great dark scene performance for watching movies in a dark room. Input lag is low, especially at 4k, and motion handling is excellent which is great for gaming. The TV can produce bright, saturated highlights for HDR. Unfortunately, the image degrades when viewed at an angle.
8.5Movies
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What it is Movies in the dark. The TV will be used for watching movies in a controlled environment, directly in front, in a home theater way. Mostly only high quality content, like Blu-rays, UHD Blu-rays, streaming and a little bit of HDR.
Score components:
Great movie performance. Blacks are deep and uniform, with local dimming to improve dark scenes. The picture quality is great and colors are accurate out-of-the-box. 24p movies are displayed smoothly, which is good.
8.2TV Shows
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What it is TV Shows in a bright living room. The TV will be used in to watch TV shows, in a bright room during the day, from multiple viewing positions at different angles. The content watched has an average quality: cable, streaming, SD channels, etc.
Score components:
Great for watching TV in a bright room. Image gets bright which helps to overcome ambient glare, and the reflection handling is impressive. Picture quality is also great. Unfortunately, the Android smart platform isn't as good as the competition and the image degrades when viewed at an angle.
8.1Sports
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What it is Sports in a living room. The TV will be used to watch sports during the day, like football or hockey. Usually watched with a group, so from multiple viewing position.
Great sports performance. Excellent motion handling, image remains clear even with fast-paced sports like hockey or football. The Sony X900F can flicker the backlight to clear up motion further. The TV can overcome and handle reflections well in most rooms. Unfortunately, the image degrades when viewed at an angle, so the best experience is directly in front of the TV.
8.6Video Games
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What it is Video games. The TV will be used to play video games, directly in front, in a controlled light environment. Usually fast games, like online FPS, where motion blur and input lag is important.
Great TV for gamers. Input lag is low, especially at 4k so the TV feels responsive. Motion handling is excellent, and the TV can flicker the image to clear up blur. The picture quality is great, especially in a dark room due to the high native contrast ratio and local dimming.
8.3HDR Movies
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What it is HDR Movies and TV shows. The TV will be used to watch 4k UHD HDR content, with a wide color gamut and a high peak brightness. Either via UHD Blu-rays or HDR streaming.
HDR movies look great. The Sony X900F supports HDR10, with Dolby Vision support expected in the future. The picture quality is great, with a high native contrast ratio and good uniformity, and the TV can create bright, vivid highlights for HDR.
8.5HDR Gaming
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What it is HDR Gaming. The TV will be used to play HDR video games using consoles that support it or on current generation gaming PCs. Xbox One S, PS4 Pro, GTX 10 series and AMD RX series graphics cards.
Great for gaming in HDR, such as with the Xbox One X or PS4 Pro. Input lag is low at 4k, and motion handling is excellent so fast-paced games feel responsive. The TV supports HDR10 and can produce bright, saturated highlights thanks to the high peak brightness and wide color gamut.
8.3PC Monitor
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What it is PC Monitor. The TV will be used as a PC monitor, from 2-3 feet away, either for productivity purposes or gaming. Sharp text is important, as well as a high resolution.
Score components:
Great TV for PC use. The TV feels responsive thanks to low input lag and excellent motion handling. It supports chroma 4:4:4 for clear text across all backgrounds but unfortunately, the viewing angle is poor, so the edges of the screen darken when viewed from up-close.
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Questions & Answers

60 ANSWERED QUESTIONS
15
Hello, I have been waiting for this review to come out as I am planning on purchasing a TV this month. As prices go, the 75" X900F and 75" X940E are currently the same price. Would you recommend the X940E over the X900F? I will be using the TV in a marginally bright living room with varied content (Games, Sports, Movies, etc...) Which TV would you recommend? Thank you.
We recommend the X900F over the X940E. The X900F is slightly dimmer than the X940E especially in HDR, but not enough for it to be an issue in a marginally bright room. It also has much better response time. The poor response time makes the X940E a bad choice for sports or video games.
12
If I could find the X900F and the X930E for the same price, which one should I get?
Unless you plan on playing a lot of HDR games or watching a lot of sports, the X930E is the better buy.
10
Are the X900F stands interchangeable with the X900E? My X900E stand precludes me from placing my center channel on my stand, while the X900F looks like it would allow for one. Thanks!
No, the stand on the X900F is wider than the X900E and would not be interchangeable.
8
Simple question? The X900F or the X930E, which one is better. Usage will be for 4k HDR movies and HDR gaming. Room the TV will be set in is very neutral meaning if can be bright or dark. I would like a definitive answer please. Thanks
Between those two, get the X930E. We would like to point out that the X900E would also be an excellent choice, offering nearly the same performance as both the X930E and the X900F, but it is $500 cheaper.
7
Hello. Appreciate the excellent review ! Rtings has become my go to site for TVs info. I have both a question and a suggestion: (1) you confirm here that the X900F supports 1440p @ 60hz .. can you confirm if it properly supports 1440p @ 120hz PC input as well ? (HDMI 2.0 should have just enough bandwidth to do 1440p @ 120hz @ 8-bit @ 4:4:4 OR 1440p @ 120hz @ 10-bit @ 4:2:2) (2) Can you add listing 1440p @ 120hz support to your TestBench 1.2 too ? (perhaps specifying 8/10-bit & 4:4:4 support as well) Thanks in advance.
Yes, the X900F supports 1440p @ 120hz, same as the X900E. While we would love to add that listing to our test bench, we have limited resources and must prioritize our tests to reach the majority of our users. Thank you for your feedback!
6
I have the option to get the X900F and last year's X930E, both in 65" and at the same price, but am having difficulty deciding. Primary usages will be gaming (Xbox One X), sports, and HD movies. Any suggestion would be helpful.
Normally we would recommend the X930E over the X900F, but if you can get the X900F for the same price go with that. The improved motion handling and response time on the X900F make it a slightly better choice for gaming and watching sports. Usually it is not enough to justify the extra $200.
6
So you're saying to go with the cheaper option compared to the X900E, X940E, or Q8C to the X900F? So in daily usage the differences are so small between these 4 units and they have very similar performance?
If you are looking for a 75" screen for mixed-usage go with the X900E. The X940E is slightly better than the X900F which is slightly better than the X900E, but the price difference between the three is not worth the improvement. We do not recommend the Q8C; the other models are cheaper and outperform it.
5
Are the legs adjustable? Can you move them closer together?
The legs are not adjustable, but they can be swapped. Each leg is angled outwards normally, but we were able to swap them to angle them inwards instead (This is not recommended by the manufacturer, do this at your own risk). When swapped the base has a footprint of 652mm (25.7"), compared to 996mm (39.2") when angled out.
5
For the 75” size, the X940E is about $200 more currently. For the money, would you recommend the X940E over the X900F?
Unless you are in a very brightly lit room, stick with the X900F. The motion lag on the X940E make it less than ideal for gaming or watching sports.
5
Do the X900F variants comes with external power bricks like the X900E?
All models of the X900F have a built-in power supply.
4
In your comparison with X900E, you mentioned that it will also be getting an update for Dolby Vision. Can you confirm if that is true? I am not seeing this info in the X900E review, where you state it won’t get Dolby Vision.
The X900E will not be getting Dolby Vision as far as we know. The X900F will be receiving support for Dolby Vision via a firmware update to be released later this year.
4
When compared to the KS8000, the comparison page shows the KS8000's motion as a "10" when in actuality the KS8000 scored an "8.1." This is an error.
Thank you for your feedback. The KS8000 was tested using an older methodology and test bench version, so the score you are seeing is an estimation. The two methods for comparing motion are too different to allow for a direct comparison. The X900F has better local dimming than the KS8000, so it would be better suited to a dark room. The KS8000 handles reflections better and is better suited to a brighter room. The X900F also has less blur when watched fast-paced content due to the lower response time.
4
What is the peak brightness on the X900F? I'm getting a Sony 4k soon, my eyes are set on the X930E with its 1400+ nits. Wondering if the X900F is better. Thanks
With a window size of 10%, the X900F was quite a bit dimmer than the X930E at 958 nits compared to 1452. If you are looking for a 55" and your room is not extremely bright, go with the X900F considering they are the same price.
4
What is the input lag at 1440p @ 120hz?

1440p @ 120 Hz: 13.3 ms
1080p @ 120 Hz: 12.9 ms
so the 1440p @ 120 Hz input lag is the same as for 1080p within error.

4
Is the 49" X900F the best 49 inch TV on the market?
While the X900F is currently the best 49" TV on the market, the $150 difference over the X900E is not worth the slight improvement over last year.
4
Which would you say has the better upscaling of lower resolution content the X900F or LG B7A?

Sony offers more options to adjust the upscaling depending on your personal preferences. On a side by side comparison with our static image test the results are nearly identical. While this is highly subjective, both screens performed similarly and scored the same on all 3 upscaling tests.

LG B7 / B7A @ 720p LG B7 / B7A 720p
Sony X900F @ 720p Sony X900F @ 720p
4
Is Dolby Vision so important that I should really consider the X900F over X900E? Is it something I will be sorry to have missed out on in say 3 years?
We don't recommend spending more just to get Dolby Vision. If you want to find out more about Dolby Vision you can read our comparison of the two technologies.
3
So both the X930E and X900F are currently 1499.99. The review said they are both very similar to one another. The only difference I see is the X900F has X-Motion Clarity and the X930E has the advantage in overall brightness. So which one would you choose?
At the same price, the X900F would be the better choice unless you have a very bright room. We found that X-Motion Clarity does not add much but the X900F does have better performance for HDR gaming and movies. Normally the marginal improvement is not worth the extra $200.
3
Since the 75" X940E and the 75" X900F are the same price, which one should I buy? From what I can see, the PROS for the X940E are: 1. Build Quality 2. Brightness 3. Local Dimming Performance 4. Black Uniformity 5. Black Frame Insertion And the only weakness when comparing the two is related to the X940E's motion / response time performance. Is this X940E weakness only showing up because I am comparing a 75" TV review (X940E) to a 55" TV review (X900F) OR is the X-Motion Clarity feature really that good? Would the 75" X900F have the same motion limitations / problems as the X940E? Thanks!
The X-Motion Clarity feature does not significantly improve picture quality. The scores on these two models are so close that it highly depends on your usage. Based on mixed-use, the X900F scores slightly higher. If you use it mainly for watching HDR movies, the X940E is the better choice. With the poor motion performance, if you plan on using it for HDR gaming then the X900F is again the better choice.
3
Thank you for answering my question about the overshoot. I do have a follow-up question, can something like that be improved through a software update or is it a panel issue?
In theory it may be possible to correct this sort of issue through a firmware update, but we have never seen this happen.
3
How many zones are in the Sony X900F? I want to purchase the 85" and I assume that picture quality would be the same as smaller models.
In our 55" TV there are approximately 40 backlight zones. Picture quality is generally similar across different size TVs within the same line, but there may be some variation between sizes and even between different units of the same model.
3
I noticed that your recommendations for gaming have switched between the X900F and X930E. In some posts it’s 900F for better latency, but in others the 930E is recommended because the price difference is not worth it. Just wondering how much of a difference the ~10ms difference makes and if the X-Motion Clarity helps the 900F even more.
The 55" X900F and X930E are currently the same price. The X900F has slightly better input lag but the X930E is brighter, so for the same price the recommendation depends on the needs of each person. The 65" X900F is currently $700 more than the 65" X930E, not worth the price difference.
3
Which would you say has better upscaling abilities of HD and SD video. The 900F or the 2 year old Sony Z9D?
Since both the Z9D and the X900F use the X1 Extreme processor to handle upscaling, there is no measurable difference between the two. In the end the Z9D would have slightly better picture quality, but not enough to justify the massive price difference.
3
Have you guys considered testing input lag as well as informing potential buyers to the existence of the "PC Mode" available in the Pro Settings across most of these Sony TV's? If you enable "Optimize PC display" through the Pro Menu along with "Wake-up on signal" to "always", the TV behaves like a monitor and sleeps based on Windows Power settings and also wakes up with the mouse eliminating the need to use the remote. I've tested this on both the x900e and x930e, it makes both TV's act as giant monitors which would really benefit the PC Use section of your grading. To enter the pro settings just press in sequence - Display, Mute, Volume Up, Home. The TV will reboot and "Pro Settings" will be revealed on the Home Screen. Once you are done changing what you'd like just select "Start Pro mode" and it will reboot again (after cycling inputs multiple times) with your desired Pro Settings. I'm also curious if it further reduces input lag.
On the X900F there was no change to the input lag when using the Pro Settings "PC mode". We also were unable to get it to sleep with the PC. While we did not test it on the X900E or X930E, on the X900F the PC Mode did not provide any significant benefit.
3
Hi, Being a gamer, I'm a little concerned with the overshoot problem you found when testing the panel response time of the X900F. From a gaming perspective how much of an impact is this overshoot problem going to have? Could you go into a few more details about the motion problems this could cause. You rated the X900F very highly as a gaming tv so does that mean you don’t think this is a big issue? Is the overshoot preferable to the motion trailing seen on other tv's? Thank you.
The only transition that had significant overshoot was the 0-20% transition, which is black-to-dark-gray; this will make motion in dark scenes or shadows have a bright trail following motion (similar to this photo of the Dell U2717D monitor), which will make motion look less clear. This overshoot is usually worse than a gradual transition that takes an equal amount of time to settle. For most games that have a variety of scene lighting this dark transition will only be a minor issue, but it is possible that in very dark games it could be annoying.
3

Hello guys! Has this issue been resolved?
Quote from x900e review/Q&A:

Q:

Have you - in your reviews of the XE900 series - noticed any major motion artefacts (with Motionflow disabled) on 50/59.94Hz native content? (i.e. not 23.976/24 or 25p acquired stuff - but 50/59.94Hz stuff like entertainment, sports etc.) My 49XE9005 and another model I've tested are both suffering badly from frame drops and out-of-order frame pair repeats (in 720p50 or 720p59.94 domain). I've tested two TVs - and compared them with a 49X8505B previous generation model with the same test material fed via an HDMI splitter.

The test material has burned in 720p50 timecode - and I have filmed it in 720p240 slow motion for analysis using an iPhone. It is clear to see that frames are being dropped (usually on shot changes) or shown for just 1/100th of a second instead of 1/50th in some cases. These are not hugely visible to the naked eye. However these drops are having to take place because of the repetition of pairs of frames - which most definitely ARE very visible.

Example:
Frame sequence 1, 2, 3, 2, 3, 4, 5...... N, N+3 The judder of seeing frames 2 and 3 repeated after they've already been seen is really clear (it is often after shot changes - but you can still see it a a judder). The dropping of Frames N+1 and N+2 is less obvious as it is usually on a shot change as well.

It's consistent across multiple TVs with the same settings - and happens usually at the same timecode.

A:

Thank you for contacting us and letting us know.

That’s certainly very interesting. I was able to recreate the same frame drops and cadence issues on our 55” X900E. What’s also interesting is that it appears to be specific to the X900E (our X850E and X930E don’t appear to show the same issues).

This was tested in the ‘Custom’ picture mode both with ‘MotionFlow’ set to ‘TrueCinema’ and ‘Disabled’. The issue doesn’t appear to be present when in the ‘Game’ picture mode which suggests it is some additional processing that can’t be disabled in certain picture modes.

This issue specifically has been tested on the X900F, and it is not present.
2
I don't understand how a 2018 TV that has major issues with stutter and BFI, as well as the much maligned android interface, warrants an 8.3 overall rating, and no UHD certification for $2,200? No thanks.
We wouldn't say the X900F has major issues with stutter and BFI. While the results are average, they are similar to other similarly priced models. What the X900F does well, it does really well. The motion blur design and picture quality are very good. We agree that the android interface is less than ideal, hopefully we will see this improve over time as this model has yet to receive any firmware updates.
2
Sony announced that the X900F will be available in all sizes starting 49" but I cannot find the 49" X900F anywhere right now, not even on their own site (says "price unavailable"). Thing is, I clearly remember seeing it on their site about a month ago, I think it was going for <$1100. Makes me wonder that they are purposely delaying making the 49" available as to not cannibalize their 55" X900E clearout (which is currently at the Black Friday price, ~$1000, and has been this way for weeks). Annoying because I waited for your X900F review (since they were announced at CES earlier this year) before making a choice between the X900F and the X900E and I was now leaning towards the X900F...
The 49" X900F is currently available for preorder only for $1199. It is normal for manufacturers to reduce prices on last year's models to try and clear out remaining inventory. The 49", 55" and 65" are all currently on sale on Amazon. There is not enough of a difference between the X900F and the X900E to justify the extra $300.
2
On TVs designed around the Android/Google Play Store interface, during the Smart Apps review could you advise if the preinstalled apps can be uninstalled or disabled. Since I don't use many smart apps, I would like to clear those that are not used for a cleaner interface. Your reviews have been excellent. I will be purchasing a new TV soon based on your recommendations. Keep up the good work. Thank you.

Disclaimer: Do this at your own risk

We tested it on the X900F and while there is no way to remove the preinstalled Android Apps, there is a 'Pro settings' mode which allows you to disable the services you don't want and provides a clean interface. To access it on the X900F, with the display turned off, press in sequence: 'Display', 'Mute', 'Volume Up', 'Home'. Your display will power on, and at the bottom of the home menu you will see a new icon to access the pro settings. Once you have completed your setup choose 'Start Pro Mode' at the top of the pro settings menu. Your TV will restart with the clean interface. If you want to make any changes simply turn the TV off and input the sequence again.

2
When comparing the previous model X900E, the native contrast ration dropped from 5411:1 to 5089:1 ( which is odd as X900F is an upgrade and a brighter panel ). How this difference affects in practice ? I'm considering buying X900F instead of X900E, but this number got me. Thanks you !
The difference is really minimal and even side by side, you would need to look really hard to see the difference. Here, the black uniformity might be the cause of the contrast ratio being worse on our X900F versus our X900E, and since the black uniformity is unit dependent, you could get an X900F with a slightly better contrast ratio.
2
Thanks for the detailed and informative review. One of the devices that I'm planning on using with this TV (the 49" version when available) is a PS3. Since the PS3 outputs a 1080p signal, can I utilize the 1080p 120Hz mode so I can take advantage of that low 12.9 input lag, or is this only possible if using the TV as a monitor for a computer? If so, then can the same be achieved if I use devices such a PS2 and Wii with a multi-RCA switch and an RCA to HDMI converter, and which ones would you recommend?
The PS3 is only capable of outputting a 60Hz signal, which is what the TV will display as well. We tested the input lag at 1080p @ 60Hz and found it to be considerably higher at 40.9 ms. This would also be true when connected to older devices such as a Wii or PS2, nor would there be much(if any) benefit from such low input lag on older devices.The low input lag of 12.9 ms was only seen when using the TV connected to a PC.
2
When will Android v 8.0 come out and will it be available on the X900E as well? Thank you.
Android 8.0 Oreo is already out, but none of the Sony TVs have currently received the update. Sony has confirmed that it is on the way, but we can't say when.
2
Does the X900F have the same integer-ratio scaling as the X900E when in graphics picture mode @ 1080p?
Like other TVs with the X1 Extreme processor such as the X930E, the X900F is not capable of integer-ratio scaling.
2
How many zones did this set have?
On our 55" model we counted 40 backlight zones, although this is just an approximation.
2
I don't see any dimming zone counts in your reviews except for Vizio, which actually list them in the specifications. It would be especially helpful if you would include a zone count for all full-array local dimming TV reviews. While better processing can help with local dimming, it's effectiveness is limited by the number of zones.
Most manufacturers do not provide information on the number of dimming zones. The number of dimming zones is not the only factor in determining local dimming quality. The algorithms are just as important in reducing blooming or helping to produce bright highlights. We wish we could test everything but unfortunately we have limited resources.
2
Does or will the X900F support HDR10 and Dolby Vision through any HDMI input?

Only via the HDMI 2 and 3 since only those two support the full HDMI 2.0 bandwidth. Note that at the X900F doesn't currently support Dolby Vision, but Sony said it should be made available via firmware later this year.

Update 05/02/2018: HDR is supported on Sony's non-full-bandwidth ports when playing from a Blu-ray player since it plays movies at 24 Hz. Anything higher than this will only be supported via HDMI 2 and 3 though.

2
Just one quick observation I notice the X900f has gotten rid of the external power brick. I was very happy to see this. Can we expect the higher end Sony't to have ditched it as well?
Hi and thanks for contacting us. All the new high-end Sony TVs announced yet in 2018 seem to be 'power brick free', but there might be some unannounced TVs, so we can't be 100% sure.
2
Concerning "smart features"; since the newer Sony's have a feature called "Pro settings', which among other things allow you to disable android apps, shouldn't this be a consideration when measuring screen clutter? Apparently it also has a hidden PC input feature. Supposedly to make the set in question perform better when connected to a PC. Could you test this? Just in case you were unaware of its function, its found by pressing *Display+Mute+Vol-up+Home*. Maybe a reason to add a "special feature" section on the different sets that have hidden features. Thanks.
Almost all TV manufacturer's have a hidden customization menu. In the case of the Sony X900F, the 'Pro settings' mode allows us to disable android features and lock down the unit. We did test the PC input feature and it does not provide any further enhancements than are already there; it simply locks the unit into the PC mode. These menu options are usually hidden for a reason, and in some cases you can brick your TV if you get a setting wrong. This is why we don't usually cover these features. In the case of the X900F, these features are designed for commercial use (such as digital signage or for Hotels), and they are not much use for most people. Other than decluttering the screen they do not provide any significant benefit for the average consumer.
2
Do these TVs do picture in picture?
There is an option for picture-in-picture, but it is very limited. The X900F can only display 1 small box in the top right corner, and it only supports playing the native apps (netflix, youtube, etc...) full screen while in picture-in-picture. This is also true for the X930E and X900E.
2
Can the stand legs on the Sony 75X900F be attached right to left rather than left to right? This would have the stand legs inward rather than pointed out. It would fit my current TV stand in this configuration.
Yes, they can be reversed. Note that this is probably not intended by Sony as there are notches on the legs to stop you from doing this, they just didn't put the notches on the TV itself. We tried it on our 55" and the TV seemed stable.
2
X900E or X900F for Gaming on PS4 Pro and Movies ?

Thank you for reaching out.

Both TVs are very good for the intended usage. The X900F offers slightly better performance since it has a lower input lag and a faster response time. However, as the difference is marginal we recommend that you go with the cheaper model that is the X900E.

2
I have a 65" X930D. How much improvement would I see moving up to the X930E or X900F? Primary use is HDR movies and HDR gaming. The room is dim and almost pitch black when watching movies.  Thanks for your time!
Either of these would be a good upgrade for your usage, but the X930E would be the better choice. They both have a much higher contrast ratio which is great for dark room viewing, and they also both have much better 4k input lag for gaming. The X930E and X900F are very similar, the price difference is not worth investing in the X900F.
1
You mentioned the 20% overshoot was severe in this model. I'm curious to know how it compares to the 900e. Overall motion scored better but can you give us an idea of the particular compliment of the motion compared to the 900e? I own the 900e and I think the motion is exceptional. I only notice occasional studder in panning scenes
The X900F we tested showed severe overshoot in the 0-20% and in the 0-80%. We did not have the same issues on the X900E. Both units have exceptional response time, but the X900F does perform slightly better. The overshoot will be slightly noticeable in very dark scenes with lots of motion, such as in Sci-Fi or Horror movies.
1
The review mentions that the TV does not support full HDMI 2.1 bandwidth. I'm assuming that means none of the HDMI inputs are HDMI 2.1, but does it support any HDMI 2.1 features?
While it does not currently support any features of HDMI 2.1, it is possible that some of these (such as variable refresh rate or eARC) may be added in the future.
1
What are the measurements of the wall mount holes on the back of the 85" X900F? Specifically the measurements from top wall mount holes, to the top of the TV; and from the bottom wall mount holes to the bottom of the TV. I believe the configuration is VESA 400 x 400, but I don't know if the holes are centralized or skewed lower.
We don't have the 85" here to measure the exact distance, but on our 55" the holes are centered horizontally, but skewed slightly lower vertically. They are VESA 400 x 400mm.
1
What would be your recommendation for a ~50" high quality (brightness/contrast/color gamut/motion/supported input formats/etc equivalent to the X900F/X900E) 4k HDR _dumb_ TV? Basically I want everything an X900E/X900F would provide but without any networked software/features (or smart features in general). I've seen way too many people complain about Sony Bravia (and TVs of other manufacturers) software issues, where it's laggy or crashes even when trying to use basic TV features like adjusting the TV volume. Since I only use TVs connected to a PC (and use a regular browser for streaming content) to me that's completely unacceptable for a product that costs $1000 or more. As I understand simply not connecting it to the network doesn't fix all these issues as they display constant reminders to connect them. Alternatively, suggestion for (future) TV reviews: also review how well it works as a "dumb" TV (ie not connected to a network). Thanks!
There are very few 'dumb' TVs left on the market. Most of them will be small and not very good quality. Depending on the size you are looking for there are some very large computer monitors that work well as a TV, although you will need an external tuner if you wish to watch cable or use an antenna. While Sony TVs do not have the best smart interface, it is possible to lock them down and disable all smart features using the Pro Settings Mode. LG has the best smart interface, and in general there are very few issues with the smart features in the C7 or B7.
1
I returned a 55 inch Sony X900E because in a dark environment, letterboxes for widescreen & 4:3 movies had very distracting blooming, even with brightness at 0, local dimming on high, dynamic contrast at low/off. Would the X900F be any different?
This can vary from unit to unit, but it is possible that you have a bad unit. The local dimming on the X900F is slightly better than the X900E, but you should not be seeing this kind of blooming on either model.
1
Thanks for the extremely detailed review, one follow up question regarding 1440p @ 120 Hz, is there any frame skipping? Because other TVs that support 120 Hz @ 1080p such as C7 and even the C8 (according to early reports) can display 1440p @ 120 Hz but will suffer from frame skipping. Thanks.
No frame skipping; checking for frame skipping is part of our 120 Hz tests, so if we say it's supported then there is no frame skipping.
1
Does the 49" version (XBR49X900F) of this TV come in native 120hz? Or is it only for the 55" TVs and up?
Yes, the XBR49X900F also has a native 120Hz panel.
1
I think there is a mistake in this review. You state that setting Clearness to 1 does not decrease the brightness of the screen, however I just tested this on my X900F and it definitely looks darker with Clearness at 1 than with it at 0. The difference between 0 and 1 is much less than the difference between 1 and 2, but 1 is still noticeably darker than 0. I tested this with a static screen (my Blu Ray player's home screen).

We went back and tested it again and there is a decrease in brightness when setting 'Clearness' to 1. We tested a real scene through our Blu-ray player and measured a decrease of ~60 nits. The 10% window showed a decrease of ~50 nits, and the 50% window showed a decrease of ~96 nits.

Thank you for bringing this to our attention, we have corrected the review to reflect these new results.

1
Does the new X900F have the same cadence issue that was reported and confirmed by you last year for the X900E? (See here)
No, we've tested the same problematic clips on the X900F and it doesn't have this issue with the cadence of 50Hz signals.
1

I am out in market for 4K UHD HDR 55' with max budget of $1000. I would have loved to get the Sony X900F, but it's priced much higher ($1500), so my final 2 shortlists are Sony 900E and LG SK8000. While your review on the Sony X900E hardly leaves any doubts on it being among the best, unfortunately the latter is not reviewed yet. LG, on paper, seems to score over a few solid points; top being a 2018 model, lots of Dolby stuff (Vision, Atmos), IPS, WebOS, Magic Remote, Google Assistant support etc.

Please let me know your recommendation soon.

PS: I have never owned Sony or LG before so both are new for me, I have been using Samsung TVs for over last 10 years and with current one (KU6290) getting burned out in less than 2 years, I'm not considering Samsung anymore!

Sorry to hear about your bad luck with your KU6290! While we haven't had the chance to review the SK8000, we expect it to be very similar to the SK9000, but without the full array local dimming feature (the SK8000 is edge-lit). Since we didn't find the FALD very effective anyway, it should be fairly similar. The X900E would definitely be the better choice. It has a much higher native contrast ratio and is much brighter. The 55" is currently on sale on Amazon.com.

1
A couple people on various forums claim that the 930E can do 144hz at 1080p or 1440p with no flicker. This TV has the same processing chip as the 930E, can this TV do 144hz?
No, the X900F skips frames at 1080p @ 144 Hz and 1440p @ 144 Hz; I just tested with this BlurBusters.com tool and a long exposure camera. We no longer have the X930E in our lab, but last year's X900E also skipped frames at 1080p @ 144 Hz, and we expect the X930E to do the same.
1
I'm curious if Sony has ever released patches to make input lag better on their TV's, and if you think it's possible they may do this for the X900F in 1080p mode? I'm just starting to get into TV tech, but I do know the input lag for 1080P is a bit too high for me. Thanks for your time! It's only a $150 difference between the X900E and the X900F 49 inch versions now. I believe I should go for the X900F.
While it is possible to reduce the input lag via firmware update, it isn't likely to happen. The last time that a Sony firmware update improved input lag was on the 2016 X930D. If the price difference is only $150, get the X900F.
1
Give it to me straight. I Will be playing in a dark room and mostly using for gaming on ps4 pro, What is the better option? 65" x900e - 55" x900f or 55" x930e ... All the same price. I don't want to regret my purchase in a few years!

Thank you for contacting us!

All three TVs will perform well for gaming on PS4 Pro. In general, we prefer larger TV sizes, but viewing distance is important. If you can sit at least 9 feet from the TV, we suggest the 65" X900E. If not get the 55" X900F which has a slightly better response time that means less blur in fast motion.

1
What is wrong is that this question was asked 4 or 5 times by different users and for the same price, sometimes you say X930E is better and sometimes you say X900F is better. It doesn't make any sense.
It depends on multiple factors. The X930E is brighter, but the X900F has a better response time. For a bright room, the X930E is better, but for gaming the X900F is slightly better. Sorry if our answers appear inconsistent. Especially for the 55" model, the two are very similar and either TV is a good choice.
0
As the new Sonys come out, it seems that they are better than last years comparable model for a similar price. As you go up in quality (model#) you seem to pay more for incremental increases in quality or additional features like the ability to upgrade to Dolby HDR. Considering the future release of the set that will replace the 930E do you have an idea (inside knowledge not on lockdown) how better it could perform considering that the 900F is so close to the 930E? Only thing left is OLED quality for LCD/LED prices. Should someone considering waiting, wait? Thanks
At this point we don't even know if there will be an X930F. It there is one, it is unlikely to be a significant enough upgrade to warrant waiting.
0
Which TV would you recommend between the X900F, X930E, and Q8F? I've read that the new Samsung line is outstanding, but is it worth the extra money?

Get whichever you can find cheaper between the X900F or X930E. The Q8F is not available in the United States but the Q8C is more expensive than the other two and is not as bright. We reviewed the NU8000 and found it not as bright as the other two, so it would depend on your usage. The other new Samsung models out this year are unlikely to be worth the extra money.

If you are flexible on models there are a lot of good deals this time of year on the 2017 models, the X900E or the LG B7A would be excellent choices as well.

0
What about clouding/blooming? hdtv test had the subtitles on, and the blooming looked horrible, and I use subtitles a lot. Also which would be better the 900f or Oled B7 considering they are both the same price now.
Blooming will occur with subtitles mostly because the zones are relatively large and it will be visible especially in dark scene. In this case, the LG B7 would be the best TV suited for you.
0

Hi I just had a question about Chroma subsampling.. I have been looking for a TV that I can play PS4 pro and also connect to my PC as a monitor. I narrowed down to wanting full array backlight, 120hz, 4k, HDR (Dolby), and chroma subsampling.

With my limited knowledge I think I like the 49inch Sony X900F. While looking through your review I was unable to find if this TV has good quality chroma subsampling. I was wondering if you think this TV will be good to double as a monitor or if there is a better option for me?

The X900F is a great choice that will fill all of your requirements. The X900E would also be a good alternative, the only real difference is the lack of Dolby Vision. The X900F displays 4:4:4 without any issues, but you have to be in 'Game' or 'Graphics' picture mode with 'HDMI Enhanced Format' enabled (so only on HDMI 2 or 3).

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