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Reviewed on Mar 16, 2018 , Eric Bousquet, Ian Cumming

Sony X900F
TV REVIEW

Usage Ratings - Version 1.2

Test Benches:

  • 1.2: Winter 2018
  • 1.1: Summer 2017
  • 1.0: Winter 2015
  • 0.9: Winter 2014
  • 0.8: Winter 2013
8.3
Mixed Usage
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:
Value for price beaten by
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
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
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
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
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.
8.4
HDR Movies
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.
Score components:
8.6
HDR Gaming
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
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
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.

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 8/13/2018: We have retested the input lag with the latest firmware (PKG6.5603.0175NAA) and it remains the same.
Update 6/12/2018: It turns out 1080p @ 120 Hz is possible, when the Xbox's connection type is changed from Auto-detect (Recommended) to HDMI, but unfortunately in this mode 4k and HDR aren't supported.
Update 6/11/2018: Dolby Vision support has been added as of firmware (PKG6.5603.0175NAA); the scores have been updated. Also a note for Xbox One X and Xbox One S owners: 120 Hz from the Xbox will not work with this TV (and all 2018/2017 Sony's we've tested), because the TV requires a forced resolution for 120 Hz to be displayed.
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

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
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
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.

8.2

Picture Quality

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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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.
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
What it is: Dirty Screen Effect. 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.
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
What it is: Dirty Screen Effect. 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
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
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
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
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
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.
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.
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
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
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
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
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
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
What it is: The picture mode used to do the 'Pre Calibration' measurements.
:
Custom
White Balance dE
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
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
1.60
Gamma
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
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
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
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
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
What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
1.33
Gamma
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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.)
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.)
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.)
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.)
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
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
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
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
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
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
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
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
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
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.

8.7

Motion

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
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
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
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
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
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
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)
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
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
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
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
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
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
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)
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)
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
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
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
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
What it is: Whether 24p content can play without any judder.
When it matters: Only 24p content (mostly just movies).
Judder-Free 24p
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
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
What it is: Judder-free movies over 60i signal.
When it matters: Movies from cable/satellite boxes.
:
Yes
Judder-Free 24p via Native Apps
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
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.
Native Refresh Rate
What it is: The out-of-the-box maximum refresh rate; how frequently the TV can refresh and show new frames.
When it matters: When playing content with a frame rate that matches the TV's refresh rate (ex. 60 fps on a 60 Hz TV, 120 fps on a 120 Hz TV), or when using the TV's motion interpolation feature (soap opera effect).
Good value: 60 Hz
:
120 Hz
Variable Refresh Rate
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
4k VRR Maximum
What it is: The maximum frequency covered by the Variable Refresh Rate feature of the TV when the input signal is 4k.
When it matters: Any time the VRR feature is enabled and 4k is sent.
Good value: Matches maximum refresh rate at 4k.
Noticeable difference: 10 Hz
:
N/A
4k VRR Minimum
What it is: The lowest frequency covered by the TV's Variable Refresh Rate feature when the input signal is 4k.
When it matters: When using the VRR feature of the TV at lower frame rates when sending a 4k signal.
Good value: 30 Hz
:
N/A
1080p VRR Maximum
What it is: The maximum frequency covered by the Variable Refresh Rate feature of the TV when the input signal is 1080p.
When it matters: Any time the VRR feature is enabled and 1080p is sent.
Good value: Matches maximum refresh rate at 1080p.
Noticeable difference: 10 Hz
:
N/A
1080p VRR Minimum
What it is: The lowest frequency covered by the TV's Variable Refresh Rate feature when the input signal is 1080p.
When it matters: When using the VRR feature of the TV at lower frame rates when sending a 1080p signal.
Good value: 30 Hz
:
N/A
VRR Supported Connectors
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

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
What it is: Delay between input and onscreen reaction.
When it matters: Video games; when TV is used as PC monitor.
1080p @ 60Hz
What it is: Lowest input lag possible on TV with a 1080p @ 60Hz @ 4:2:2 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
What it is: Lowest input lag possible on the TV when displaying 1080p @ 60Hz @ 4:2:2 @ 10 bit 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
What it is: Lowest input lag possible on the TV when displaying 1080p @ 60Hz @ 4:2:2 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 @ 120Hz
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
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:2:0.
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
What it is: Lowest input lag possible when displaying 4k @ 60Hz @ 4:2:0 @ 10 bit signal with HDR.
When it matters: HDR Video games.
Good value: < 40 ms
Noticeable difference: 15 ms
:
24.2 ms
4k @ 60Hz @ 4:4:4
What it is: Lowest input lag possible on the TV when displaying 4k @ 60Hz with proper 4:4:4 chroma subsampling. The test is usually conducted with a 4k @ 60 Hz @ 4:4:4 signal, but a 4k @ 60 Hz @ Full RGB signal may be used if it's required for the TV to show proper 4:4:4 chroma subsampling.
When it matters: PC Monitor
Good value: < 40 ms
Noticeable difference: 15 ms
:
24.1 ms
4k @ 60Hz @ 4:4:4 + 8 bit HDR
What it is: Lowest input lag possible on the TV when displaying 4k @ 60Hz @ 8 bit + HDR with proper 4:4:4 chroma subsampling. The test is usually conducted with a 4k @ 60 Hz @ 4:4:4 @ 8 bit signal, but a 4k @ 60 Hz @ Full RGB @ 8 bit signal may be used if it's required for the TV to show proper 4:4:4 chroma subsampling.
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
What it is: Lowest input lag possible on the TV when displaying 4k @ 60Hz @ 4:2:0 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
What it is: Lowest input lag for 4k @ 60 Hz @ 4:2:0 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
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
4k with Variable Refresh Rate
What it is: Lowest input lag possible on the TV when its Variable Refresh Rate feature is enabled and it is sent a 4k signal.
When it matters: When gaming with a device which supports variable refresh rates, such as the Xbox One X or a PC.
:
N/A
1080p with Variable Refresh Rate
What it is: Lowest input lag possible on the TV when its Variable Refresh Rate feature is enabled and it is sent a 1080p signal.
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.

Update 08/13/2018: We have retested the input lag with the latest firmware (PKG6.5603.0175NAA) and it remains the same.

10 Supported Resolutions
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
  • 16% 4k @ 60Hz
  • 16% 4k @ 60Hz @ 4:4:4
1080p @ 60Hz @ 4:4:4
What it is: Crisp text on 1080p @ 60 hz signal.
When it matters: PC productivity and 60 fps gaming.
:
Yes
1080p @ 120Hz
What it is: 120 fps 1080p signal supported.
When it matters: PC gaming.
:
Yes (forced resolution required)
1440p @ 60Hz
What it is: 60 fps 1440p signal supported.
When it matters: PC productivity and gaming.
:
Yes
4k @ 30Hz @ 4:4:4
What it is: Crisp text on 4k @ 30 hz signal.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz
What it is: 60 fps 4k signal supported.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz @ 4:4:4
What it is: Crisp text on 4k @ 60 hz signal.
When it matters: Productivity and 60 fps gaming in 4k.
:
Yes
4k @ 120Hz
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.

Update 06/11/2018: A note for Xbox One X and Xbox One S owners: 120 Hz from the Xbox will not work with this TV (and all 2018/2017 Sony's we've tested), because the TV requires a forced resolution for 120 Hz to be displayed.

Update 06/12/2018: It turns out 1080p @ 120 Hz is possible, when the Xbox's connection type is changed from Auto-detect (Recommended) to HDMI: (Xbox > Settings > Display & sound > Video fidelity & overscan > Display > Connection > HDMI). Unfortunately in this mode 4k, HDR, 50 Hz and 24 Hz aren't possible, so this mode is only recommended when the higher refresh rate of 120 Hz is more important to you than these other features. Find out more here.

Update 06/18/2018: Correction, 24 Hz and 50 Hz are in fact possible with the Xbox's connection type set to HDMI.

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
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
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.
:
Yes
HLG
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
What it is: Optional 3D video capability on TV.
When it matters: 3D movies & videos.
:
No
5.1 Passthrough ARC Dolby Digital
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
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
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
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
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
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
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
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)

Update 06/11/2018: Dolby Vision support has been added as of firmware (PKG6.5603.0175NAA); the scores have been updated.

6.1

Sound Quality

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
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
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
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
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
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
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
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
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
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
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
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
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

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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
What it is: Whether apps on a phone or tablet can cast content to the TV.
:
Yes
USB Drive Playback
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
What it is: Whether HDR files played from a USB drive can be displayed properly.
:
Yes
HDR in Netflix
What it is: Whether HDR content on Netflix can be played back in HDR using the native Netflix app.
:
Yes
HDR in Amazon Video
What it is: Whether HDR content on Amazon Video can be played in HDR using the native Amazon Video app.
:
Yes
HDR in YouTube
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. The X900F is one of the best internet TVs we've reviewed in 2018.

8.0 Remote
What it is: The usability and features of the TV's physical remote.
Score components: Subjectively assigned
Sony X900F Remote Picture
Size
What it is: How big the remote is
:
Large
Voice Control
What it is: The capabilities of the TV's voice control feature
:
Many Features
CEC Menu Control
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
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
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
What it is: Whether the remote app can emulate all the buttons of the physical remote.
:
Yes
Directly Launches Apps and Inputs
What it is: Whether the remote app can directly launch the TV's apps and change between its inputs, without requiring any interaction with menus on the TV.
:
Both
Inputs Text in YouTube
What it is: Whether the remote app can enter text for YouTube searches.
:
No
Inputs Text in Netflix
What it is: Whether the remote app can enter text for Netflix searches.
:
No
Streams Device Files
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.
:
Yes
Controls TV Settings
What it is: Whether the app can change all or some of the settings on the TV, such as the backlight.
:
No
Voice Control
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.

Update 07/11/2018: Sony's Video & TV SideView remote app has been retested on version 5.5.0. The remote app can now stream video files and can only directly launch apps. The data fields have been updated.

Update 10/12/2018: The remote app can directly launch both apps and inputs, even on version 5.5.0; "Apps Only" was a mistake. The value has been corrected to "Both".

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) : 174 W
Firmware : PKG6.5160.0144NAA

Update 11/15/2018: The maximum power consumption was incorrectly listed as 108 watts, this was a mistake which has been corrected.

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).

Depending on where you are, the X900F is also known as the XF90, X90F, or X9000F. Although we haven't tested them, we don't expect any significant differences between them other than minor regional differences, including different tuners.

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. See our recommendations for the best TVs on the market.

Samsung Q8FN
55" 65" 75" 82"

The Samsung Q8FN is slightly better than the Sony X900F. The Q8FN has better reflection handling, although the Sony X900F is brighter. The Samsung Q8FN is better for gaming, as it has lower input lag, and it supports FreeSync and automatic low latency mode. The Sony X900F has a better response time, so motion is clearer with less blur, but the Q8FN is excellent as well. While both TVs have an optional black frame insertion feature, the Q8FN can flicker at a lower frequency, good for content with a lower frame rate.

Sony X900E
49" 55" 65" 75"

The 2018 Sony X900F is marginally better than the 2017 Sony X900E. The X900F has a better response time, so fast moving objects have very little motion blur that is not noticeable to most people. The X900F also received an update that enables Dolby Vision support with the native apps and some external devices.

Sony X930E
55" 65"

The Sony X900F and the Sony X930E have very similar performance. The Sony X900F has a marginally better response time that you might notice if you are a hardcore video gamer. On the other hand, the Sony X930E has better contrast that produces deeper blacks in dark environments and is great if you watch HDR content. Also, the Sony X930E has somewhat better SDR peak brightness that you will appreciate if you watch TV shows in a brighter room. 

Sony X850F
65" 75" 85"

The Sony X850F is more suitable for a large room with wide seating arrangement as it has better viewing angles. If you will be sitting right in front of the TV, then the Sony X900F is a much better choice. The X900F has higher native contrast ratio, and better local dimming and black uniformity that produce deep blacks in a dark room. Also, the X900F has better HDR peak brightness that allows it to display a rich and vivid HDR content much better than the X850F. Finally, the X900F has a faster response time which is great for fast action.

Samsung Q6FN
49" 55" 65" 75" 82"

The Sony X900F is better than the Samsung Q6FN. The X900F has a faster response time, so motion is clearer and has less blur. The X900F has a more advanced full array local dimming feature, great for dark room viewing, and better reflection handling. The Samsung Q6FN has less input lag and supports more advanced features for gamers, including VRR and automatic low latency mode.

Sony Z9D
100" 65" 75"

The Sony X900F and the Sony Z9D have very similar performance. The Sony X900F has a faster response time which is great when playing video games and marginally better judder removal if you watch a lot of low fps content. On the other hand, the Sony Z9D has a slightly better local dimming and marginally better black uniformity and can display deeper blacks. This will be appreciated by those who enjoy watching movies and HDR content in dark rooms.

Samsung NU8000
49" 55" 65" 75" 82"

The Sony X900F is better than the Samsung NU8000. The X900F has a more advanced full array local dimming feature, whereas the NU8000 is edge-lit. The X900F has better motion handling, with a faster response time. The Samsung NU8000 is a bit better for competitive gaming, as it supports the latest technologies, including VRR and Auto Low Latency Mode, and it has less input lag.

Samsung Q9FN
65" 75"

The Samsung Q9FN is a bit better than the Sony X900F. The Q9FN has better dark room performance thanks to the better local dimming feature and better black uniformity. The Q9FN has better reflection handling and can flicker at 60Hz which is good for clearing up motion. The Samsung Q9FN has a few features geared towards gamers, including auto low latency mode and support for AMD's FreeSync 2. The Sony X900F has a faster pixel response time, so motion looks smoother and has less motion blur.

Sony X940E
75"

The Sony X900F is marginally better than the Sony X940E. The X900F has a much faster pixel response time, so motion looks much smoother with very little motion blur. The Sony X940E has a poor response time, but it has a better black frame insertion feature that improves motion blur. The X940E has better dark room performance, with a better local dimming feature and better black uniformity.

LG SK9000
55" 65"

The LG SK9000 is a better choice if you are going to watch TV from the side, as it has better viewing angles. The Sony X900F is better for directly in front seating arrangements. The LG SK9000 has better input lag and better black frame insertion (BFI), which make it slightly better for gaming and can be attractive to gamers. The Sony X900F has better contrast and local dimming and much better black uniformity so it can display deeper blacks that improve picture quality in a dark room and make it a much better TV for movies. The Sony also has a faster response time and better gray uniformity that make it a marginally better choice for sports fans.

Samsung Q7FN
55" 65" 75"

The Sony X900F is slightly better than the Samsung 2018 Q7FN QLED TV. The X900F has a much better full array local dimming feature that improves dark room performance. The Samsung Q7FN has less input lag for gaming, and supports new gaming features like auto low latency mode and has a variable refresh rate when connected with a supported device.

LG C8
55" 65" 77"

The LG C8 is significantly better than the Sony X900F. The LG C8, like all OLED TVs, is suitable for a large room with a wide seating arrangement. It also has perfect blacks, making it ideal for dark room viewing conditions. The LG C8 has an instantaneous response time which leaves a very small blur trail in fast-moving content like sports, and a better input lag which is great for gamers. The Sony X900F, on the other hand, has a VA panel that does not have the permanent burn-in risk of the OLEDs and can get brighter.

Vizio P Series Quantum
65"

The Vizio P Series Quantum is a better TV than the Sony X900F overall. It has slightly better reflection handling and marginally better brightness which is great if you watch TV shows or sports in brighter rooms. The Vizio P Series Quantum also has better local dimming that makes blacks look deep in a dark room. The input lag of the Vizio P Series Quantum is better and this is great for gamers. On the other hand, the Sony X900F has better color accuracy out of the box, smoother gradients and more intuitive smart features.

LG B8
55" 65"

The LG B8 OLED is a better TV than the Sony X900F. The OLED is better for watching movies in a dark room due to the perfect blacks. The C8 is also better for those with wide seating as the image remains accurate when viewed at an angle. On the other hand, the Sony is a much brighter TV that does not have the burn-in risk and can be placed in bright environments. 

Samsung Q7F
55" 65" 75"

The Sony X900F is better than the Samsung 2017 Q7F. The X900F has a much more effective full array local dimming backlight, which improves dark room performance. The X900F is a lot brighter in SDR and HDR, and small highlights stand out a lot more in HDR. The Sony also has Dolby Vision support which can further improve the quality of some HDR content.

Samsung Q9F
65" 75"

The Sony X900F is better than the Samsung 2017 Q9F. The X900F has a much better local dimming feature and better black uniformity, great for dark room viewing. The Samsung Q7F has a more advanced black frame insertion feature which can clear up motion at the expense of some brightness, and has lower input lag for gamers or for use as a monitor.

LG SK8000
49" 55" 65"

The LG SK8000 has an IPS panel with better viewing angles and thus is more suitable for a large room. The Sony X900F is a better choice if you are sitting directly in front. The LG SK8000 has slightly better input lag and a better black frame insertion (BFI) feature to clear up blur that gamers will appreciate. On the other hand, the Sony X900F has better local dimming and better black uniformity and contrast that allow it to display deeper blacks that you will appreciate in a dark room while watching movies. The Sony can also get brighter and has better HDR performance.

LG SK9500
65"

The Sony X900F is better than the LG SK9500. The Sony X900F is better for watching movies or HDR content right in-front as it has better native contrast ratio, better local dimming along and better black uniformity. The Sony X900F also has a faster response time which is great for watching sports. The LG SK9500 has an IPS panel that gives better viewing angles, and this is good for wide seating arrangements and a lower input lag that makes it very responsive for playing video games. 

Sony X830F
60" 70"

The Sony X900F is much better than the Sony X830F. The Sony X900F supports local dimming and has a better native contrast ratio which produces deep blacks and thus a better SDR and HDR movie watching experience in a dark room. The Sony X900F also has better peak brightness and better reflection handling which make it more suitable for a bright room. It is also better for gaming as it has marginally better input lag. 

Sony A8F
55" 65"

The Sony A8F is better than the Sony X900F, unless the possibility of burn-in inherit in OLED technology concerns you. The A8F delivers a perfect dark room experience, as the self-emissive technology can turn off or dim individual pixels. The A8F has much wider viewing angles and better reflection handling. The X900F uses a VA panel, which is not expected to experience burn-in.

LG C7
55" 65"

The LG C7 is better than the X900F, unless you consume a lot of static content and the possibility of burn-in concerns you. The LG C7 uses an OLED panel that delivers perfect dark room performance thanks to the infinite contrast and perfect black uniformity. The C7 also has wider viewing angles, good for a wide seating area. Since the C7 uses an OLED panel, there is the possibility of permanent burn-in or temporary image retention. The X900F uses a VA panel which is not prone to burn-in. 

Vizio P Series 2018
55" 65" 75"

The Sony X900F is slightly better than the Vizio P Series 2018. The X900F performs better in a bright room thanks to the better anti-reflective coating, and it is brighter and better able to overcome glare. The X900F also has wider viewing angles and has a more robust smart platform. The Vizio P Series 2018 has lower input lag for gaming or for use as a monitor. The P Series also has a more advanced black frame insertion feature and a better local dimming feature.

TCL R617
55" 65"

The Sony X900F is better than the TCL R617. The Sony X900F displays deeper blacks in a dark room due to better local dimming, and this is great if you watch movies. The Sony X900F can handle reflections better and has a faster response time that leaves only a small blur trail. It also has better gray uniformity for an image without clouding or shadows. On the other hand, the TCL R617 has a lower input lag which is great if you play video games.

Samsung NU8500
55" 65"

The Sony X900F is much better than the Samsung NU8500. The Sony X900F has better local dimming and better native contrast ratio. Along with the better black uniformity and better brightness, it can deliver better dark room movie and HDR movie watching experiences. Also, the Sony X900F has better reflection handling and faster response time, so it is a better choice if you watch a lot of sports or TV shows in a room with many light sources. On the other hand, the Samsung NU8500 has Freesync support, lower input lag and a curvy profile to please gamers.

LG B7A
55" 65"

The LG B7A is better than the Sony X900F, unless the possibility of burn-in concerns you. The LG B7A uses an OLED panel, which offers perfect dark room performance and wide viewing angles. The B7A is prone to temporary image retention, and there is the possibility of permanent burn-in. The Sony X900F appears to be immune to burn-in and does not experience any image retention.

Samsung Q8C
55" 65" 75"

The Sony X900F is better than the Samsung Q8C. The X900F has a full array local dimming feature that delivers better dark room viewing than the Q8C's edge lighting. The X900F is brighter with SDR and HDR, and is better able to overcome glare in a bright room, although the Samsung Q8C has better reflection handling.

Samsung Q7CN
55" 65"

The Sony X900F is slightly better than the Samsung 2018 Q7CN QLED TV. The X900F has a much better dark room performance due to the efficient full array local dimming. The Samsung Q7CN, on the other hand, has a lower input lag and support for gaming features like auto low latency mode and FreeSync, which make it a better choice if you play a lot of games. Finally, the Q7CN can handle reflections slightly better.

Samsung The Frame 2018
43" 55" 65"

The Sony X900F is much better than the Samsung Frame 2018. The X900F has a full array local dimming feature that improves dark room performance and helps HDR content stand out more. The X900F is better in a bright room, as it is a lot brighter and has much better reflection handling. The X900F has better motion handling, with a faster response time and higher frequency backlight with an almost imperceptible flicker. The Frame has additional gaming features that could make it a better choice for some gamers, including FreeSync VRR and auto game mode.

Samsung MU8500
55" 65"

The Sony X900F is much better than the Samsung MU8500. The Sony X900F has much better local dimming, better black uniformity and better contrast ratio that make it much better watching movies in dark rooms and can get much brighter when displaying HDR content. The Sony X900F has better reflection handling and a better response time that make it better for watching sports and TV shows in bright rooms. The Samsung MU8500, on the other hand, has a bit better input lag and is more responsive when playing video games.

TCL C807
55" 65" 75"

The Sony X900F is much better than the TCL C807. The X900F performs better in a dark room, as it has better black uniformity and a full array local dimming feature. The Sony performs better in a bright room as it is brighter, and has better reflection handling. Motion looks smoother on the X900F thanks to the faster response time, and it can interpolate content up to 120 Hz, further improving motion smoothness, although this effect may bother some people.

Samsung M4500
24" 28" 32"

The Sony X900F is significantly better than the Samsung M4500. The X900F has a much higher resolution 4K screen. The Sony is much brighter and supports HDR content. The X900F is much more feature-packed, including a local dimming feature, and it can remove judder from all sources. The Sony has much smoother motion with a higher response time and much better colors.

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Conclusion
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8.3Mixed Usage
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
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
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
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
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.
8.4HDR Movies
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.
Score components:
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.
8.6HDR Gaming
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
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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