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  1. Table of Contents
  2. Intro
  3. Design
    1. Stand
    2. Back
    3. Borders
    4. Thickness
  4. Picture Quality
    1. Contrast
    2. Local Dimming
    3. SDR Peak Brightness
    4. HDR Peak Brightness
    5. Gray Uniformity
    6. Viewing Angle
    7. Black Uniformity
    8. Gradient
    9. Pre Calibration
    10. Post Calibration
    11. 480p Input
    12. 720p Input
    13. 1080p Input
    14. 4k Input
    15. Color Gamut
    16. Color Volume
    17. Image Retention
    18. Reflections
    19. 3D
    20. Pixels
  5. Motion
    1. Motion Blur
    2. Image Flicker
    3. 24p Playback
    4. Motion Interpolation
  6. Inputs
    1. Input Lag
    2. Supported Resolutions
    3. Side Inputs
    4. Rear Inputs
    5. Total Inputs
    6. Inputs Specifications
  7. Sound Quality
    1. Frequency Response
    2. Total Harmonic Distortion
  8. Smart Features
    1. Apps
    2. Ads
    3. TV Controls
    4. Remote
    5. In The Box
    6. Misc
  9. Sizes and Variants
  10. Compared
  11. Conclusion
  12. Q&A
Reviewed on Aug 26, 2016 , Eric Bousquet

Samsung K6250
TV REVIEW

Usage Ratings - Version 1.0
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Test Benches:

  • 1.1: Summer 2017
  • 1.0: Winter 2015
  • 0.9: Winter 2014
  • 0.8: Winter 2013
6.6 Mixed Usage
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What it is General purpose. The TV will be used for a variety of content and usages. Movies at night, TV shows during the day, video games from time to time, etc.
Score components:
Recommended if under (USD)
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What it is: Maximum price to be a better value than its competitors.
How to use it: This product is the best choice in its range if you can find it below this price.
Automatically calculated every hour based on the scores and prices of all other products we've tested.
: Not at the latest test bench
Value for price beaten by
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What it is: Product with the best value in this price range
Other best choice in a cheaper price range
Other best choice in a pricier price range
Automatically updated every hour based on the scores and prices of all other products we've tested.
: Not at the latest test bench
5.8 Movies
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What it is Movies in the dark. The TV will be used for watching movies in a controlled environment, directly in front, in a home theater way. Mostly only high quality content, like Blu-rays, UHD Blu-rays, streaming and a little bit of HDR.
Score components:
6.9 TV Shows
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What it is TV Shows in a bright living room. The TV will be used in to watch TV shows, in a bright room during the day, from multiple viewing positions at different angles. The content watched has an average quality: cable, streaming, SD channels, etc.
Score components:
7.1 Sports
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What it is Sports in a living room. The TV will be used to watch sports during the day, like football or hockey. Usually watched with a group, so from multiple viewing position.
Score components:
7.2 Video Games
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What it is Video games. The TV will be used to play video games, directly in front, in a controlled light environment. Usually fast games, like online FPS, where motion blur and input lag is important.
Score components:
5.2 HDR Movies
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What it is HDR Movies and TV shows. The TV will be used to watch 4k UHD HDR content, with a wide color gamut and a high peak brightness. Either via UHD Blu-rays or HDR streaming.
Score components:
4.7 HDR Gaming
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What it is HDR Gaming. The TV will be used to play HDR video games using consoles that support it or on current generation gaming PCs. Xbox One S, PS4 Pro, GTX 10 series and AMD RX series graphics cards.
5.8 PC Monitor
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What it is PC Monitor. The TV will be used as a PC monitor, from 2-3 feet away, either for productivity purposes or gaming. Sharp text is important, as well as a high resolution.
Score components:
Type : LED
Resolution : 1080p
Refresh Rate : 60 Hz

The Samsung K6250 is a mid-range 1080p curved TV. It looks great with a sleek design, and polished metal finish. Unfortunately it only offers average picture quality and lacks features found in higher end TVs to improve this. The motion handling is poor, and input lag is disappointing. At least the smart platform works well.

Test Results
Design 9.0
Picture Quality 6.8
Motion 6.1
Inputs 6.0
Sound Quality 6.7
Smart Features 8.5
Pros
  • Good contrast for dark scene performance
Cons
  • Poor motion handling
  • Higher than average input lag
  • Can't get very bright

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9.0

Design

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Score components: Subjectively assigned
Samsung K6250 Design Picture
Curved : Yes

The Samsung K6250 has a sleek design, which appears quite high end. The borders have a metallic finish, and the four-legged stand supports the TV well. The back is very similar to the high end Samsung KS8500, with the same reflective finish. Although it looks good, it also attracts fingerprints and dust.

Stand
Samsung K6250 Stand Picture

The four-legged stand supports the TV well. It also looks good, with a brushed metal finish.

Footprint of the 55" TV stand: 28.7" x 11.7"

Back
Samsung K6250 Back Picture
Wall Mount : Vesa 400x400

The back is sleek, with a smooth and reflective plastic finish. It is very similar to the high end KS8500, but the inputs go directly into the TV instead of a OneConnect box. The inputs all connect sideways, so this should not be an issue for wall mounting.

Borders
Samsung K6250 Borders Picture
Borders : 0.71" (1.8 cm)

The borders have a metallic finish, which looks good. They are an average thickness, but appear high end.

Thickness
Samsung K6250 Thickness Picture
Max Thickness : 3.03" (7.7cm)

The K6250 appears a bit thicker in the picture due to the curved screen. It is still quite thin though, and looks good from the side.

6.8

Picture Quality

The Samsung K6250 has an average picture quality. The contrast ratio and uniformity are good, which should provide relatively good picture quality in a dark room. The upscaling performance is also good for watching DVDs or cable TV. The picture quality degrades from the side, and the color gamut coverage is only good enough for SDR content. The peak brightness is bad, and small highlights result in the whole screen dimming. This TV does not have any local dimming feature. 

8.9 Contrast
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What it is: Brightness difference between white and black. This is the main component of picture quality.
When it matters: Always, but especially when watching dark scenes.
Score components:
Samsung K6250 Checkerboard Picture
Native Contrast
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What it is: Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with a white target of 100 cd/m².
When it matters: Dark scenes in a dark room.
Good value: > 3,000
Noticeable difference: 500
:
5305 : 1

Contrast ratio is very good for the Samsung K6250. Blacks are deep and should provide a good picture quality in a dark room.

0 Local Dimming
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What it is: The lights behind the LCD layer adapt to the picture displayed, improving the contrast ratio.
When it matters: Dark scenes viewed in a dark room.
Score components: Subjectively assigned
Local Dimming
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What it is: Whether it has a feature that controls the LEDs behind the LCD layer, to match the picture and darkens the dark portion of it.
When it matters: On LED TVs only. Dark scenes viewed in a dark room.
:
No
Backlight
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What it is: Configuration of the lights of the backlight.
When it matters: Effectiveness of the local dimming.
Good value: Full-array/direct lighting is better for local dimming. As for the uniformity of the screen, it depends on the implementation. Some edge-lit TVs have more uniform blacks than some full-array TVs.
:
Edge

There is no local dimming feature available on the Samsung K6250. Video for reference only. There is an auto-dimming feature called 'CE Dimming', but it is implemented directly in the TV software and cannot be control under 'Movie' picture mode. This cause dark scene to become too dark and is generally more annoying than helpful. Under 'PC' mode the 'CE Dimming' is turned off.

6.8 SDR Peak Brightness
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What it is: How bright the screen can get. Measured with local dimming and with SDR content.
When it matters: Bright living rooms; bright objects; SDR content.
SDR Real Scene Peak Brightness
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What it is: The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. This scene was selected to represent a more regular 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 SDR signal. Scene: here.
When it matters: When watching movies or watching TV show in SDR.
:
206 cd/m2
SDR Peak 2% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, present on screen for a short time; especially for SDR content.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
116 cd/m2
SDR Peak 10% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, present on screen for a short time; especially for SDR content.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
272 cd/m2
SDR Peak 25% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright rooms; bright objects in SDR video.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
273 cd/m2
SDR Peak 50% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright rooms.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
272 cd/m2
SDR Peak 100% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright rooms
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
271 cd/m2
SDR Sustained 2% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright highlights, persistent throughout a scene; especially for SDR content.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
116 cd/m2
SDR Sustained 10% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright objects, persistent throughout a scene; especially for HDR content.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
272 cd/m2
SDR Sustained 25% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright rooms; bright objects in SDR video.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
273 cd/m2
SDR Sustained 50% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright rooms.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
272 cd/m2
SDR Sustained 100% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters: Bright rooms.
Good value: > 400 cd/m2
Noticeable difference: 100 cd/m2
:
271 cd/m2

The Samsung K6250 has a bad peak brightness performance. The 2% window is extremely dim because of the implemented 'CE Dimming'. Under 'Movie' picture mode, the 'CE Dimming' cannot be turned off unfortunately. All the other size windows remain at around 272cd/m², which is still well under what other mid-range TV can generally do.

HDR Peak Brightness
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What it is: How bright the screen can get. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright living rooms; bright objects; HDR content.
HDR Real Scene Peak Brightness
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What it is: The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. This scene was selected to represent a more realistic movie condition. All measurement are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming, max backlight and over HDR signal. Scene: here.
When it matters: When watching movies or watching TV show in HDR.
:
N/A
HDR Peak 2% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, present on screen for a short time; especially for HDR content.
Good value: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
N/A
HDR Peak 10% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright objects, present on screen for a short time; especially for HDR content.
Good value: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
N/A
HDR Peak 25% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms; bright objects in HDR video.
Good value: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
N/A
HDR Peak 50% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
N/A
HDR Peak 100% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms.
Good value: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
N/A
HDR Sustained 2% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, persistent throughout a scene; especially for HDR content.
Good value: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
N/A
HDR Sustained 10% Window
Show Help
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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
N/A
HDR Sustained 25% Window
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What it is: The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright rooms; bright objects in HDR video.
Good value: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
N/A
HDR Sustained 50% Window
Show Help
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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
N/A
HDR Sustained 100% Window
Show Help
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: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
N/A

7.6 Gray Uniformity
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What it is: Evenness of colors onscreen (not just gray).
When it matters: Solid colors. Sports, panning shots.
Score components:
Samsung K6250 50% Uniformity Picture
50% Std. Dev.
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What it is: Average squared difference of pixels when displaying a mid 50% gray.
When it matters: Solid colors. Sports, panning shots.
Good value: < 2.5%
Noticeable difference: 1%
:
3.324 %
50% DSE
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What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Solid colors. Sports, panning shots.
Good value: < 0.165%
Noticeable difference: 0.025%
:
0.163 %

The gray uniformity is good for the K6250. On the test picture, you can see the left side is more bright and the right side is more dark. Luckily, the rest of the picture is relatively uniform, which should not cause too much of dirty screen effect.

4.3 Viewing Angle
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What it is: Color accuracy when viewed from the side.
When it matters: Large living rooms with multiple viewing positions.
Score components:
LCD Type
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What it is: Type of LCD technology used by the TV.
When it matters: Different technologies have different viewing angle properties.
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.
:
VA
Color Shift
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What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
20 °
Brightness
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What it is: Angle where the brightness drops to 50% of the brightness directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
30 °
Black Level
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What it is: Angle where the black level drops to 50% of the black level directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
24 °

Viewing angle is average for the K6250. The colors lose some saturation at an angle, but when compared to other TVs with VA panel, the Samsung K6250 outperforms most of them.

Update: We have changed the methodology of testing. Since this is an old TV which we don't have anymore, we extrapolated the results.

9.0 Black Uniformity
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What it is: Evenness of blacks.
When it matters: Dark scenes viewed in a dark room.
Score components:
Samsung K6250 Native Black Uniformity Picture
Native Std. Dev.
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What it is: Average of the squared difference of the blacks.
When it matters: Dark scenes viewed in a dark room.
Good value: < 2%
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.
:
0.957 %

Black uniformity is great. We can still make out a bit of clouding, but it is more evident in our test picture. During normal movie viewing, the clouding is not really noticeable.

8.5 Gradient
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What it is: How finely levels of color can be displayed.
When it matters: Details in shadows, sky and skin tones. Matters more for HDR content.
Score components: Subjectively assigned
Samsung K6250 Gradient Picture
Color Depth
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What it is: Number of bits per pixel to represent a specific color. Note: we consider 8-bit with dithering to be equivalent to 10-bit, as long as the 10-bit gradient looks smooth.
When it matters: HDR content like UHD Blu-ray players. Won't matter for cable TV, regular Blu-ray movies, video game consoles or content displayed from a Windows PC. Those are limited to 8-bit color.
Good value: 10-bit.
Noticeable difference: 1 bit.
:
8 Bit

The Samsung K6250 has an 8 bit panel. The 8 bit gradations are clearly visible in the darker colors. The gradient does not show any signs of irregular color shades or any obvious banding.

7.9 Pre Calibration
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What it is: TV's color accuracy before a full calibration. Only the picture mode and backlight level were changed.
When it matters: All video on an uncalibrated TV. This represents most people's use cases.
Score components:
Samsung K6250 Pre Calibration Picture Samsung K6250 Pre Gamma Curve Picture Samsung K6250 Pre Color Picture
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all video.
Good value: < 3
Noticeable difference: 1
:
4.16
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
3.24
Gamma
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What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.17

Prior to calibration, the colors are slightly oversaturated and white balance is a bit off, but for most people this should not be an issue.

9.7 Post Calibration
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What it is: TV's color accuracy after a full calibration with a spectrophotometer.
When it matters: All video on a TV that has been professionally calibrated. This isn't that useful, because most TVs can achieve a pretty good calibration if you spend enough time on them.
Score components:
Samsung K6250 Post Calibration Picture Samsung K6250 Post Gamma Curve Picture Samsung K6250 Post Color Picture
White Balance dE
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What it is: Average inaccuracy of shades of gray.
When it matters: Overall color temperature of all videos.
Good value: < 3
Noticeable difference: 1
:
0.42
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
0.49
Gamma
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What it is: Brightness of shades of gray.
When it matters: Shadows.
Good value: Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference: 0.1
:
2.18

Calibration is easily performed using the inbuilt 10 point white balance and color settings. It results in very accurate colors, and a good white balance. The gamma drops slightly below 10% to preserve dark details. Our calibration settings can be found here.

7.5 480p Input
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What it is: Quality of a 480p input.
When it matters: Standard definition TV, DVDs.
Score components: Subjectively assigned
Samsung K6250 480p Picture

Upscaling of 480p content results in a slightly soft picture, with some loss of details. Overall the result is quite good.

8.0 720p Input
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What it is: Quality of a 720p input.
When it matters: HD channels, some streaming videos.
Score components: Subjectively assigned
Samsung K6250 720p Picture

720p content such as cable TV also looks a bit soft, but the upscaling still performs well.

10 1080p Input
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What it is: Quality of a 1080p input.
When it matters: Blu-rays, streaming video, video files, video games.
Score components: Subjectively assigned
Samsung K6250 1080p Picture

Native 1080p sources look clear, as they require no upscaling. Some moire can be seen in this image, but this is a camera artifact and is not an issue.

0 4k Input
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What it is: Quality of a 4k UHD input.
When it matters: Streaming video, UHD Blu-rays, some PCs.
Score components: Subjectively assigned

7.1 Color Gamut
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What it is: How many colors the TV can display.
When it matters: HDR content. Includes some streaming videos and UHD Blu-rays.
Score components:
Wide Color Gamut
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What it is: Whether the TV has an option to enable wide color gamuts.
When it matters: HDR content. Includes some streaming videos and UHD Blu-rays.
:
No
Samsung K6250 Color Gamut DCI-P3 Picture
DCI P3 xy
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What it is: Coverage of the DCI P3 colorspace on CIE 1931 xy.
When it matters: DCI P3 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
77.54 %
DCI P3 uv
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What it is: Coverage of the DCI P3 colorspace on CIE 1976 u' v'.
When it matters: DCI P3 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
84.18 %
Rec 2020 xy
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What it is: Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters: Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
58.60 %
Rec 2020 uv
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What it is: Coverage of the Rec.2020 colorspace on CIE 1976 u' v'.
When it matters: Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
62.92 %

The colors of the K6250 are good for SDR content, but it does not support a wide color gamut for those interested in HDR.

5.7 Color Volume
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What it is: How many colors a TV can display at different luminosity levels.
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Samsung K6250 P3 Color Volume Picture
Normalized DCI P3 Coverage
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What it is: How much of the DCI-P3 colorspace a TV can display at different luminosity levels
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Good value: 80 %
Noticeable difference: 5 %
:
64.032 %
10,000 cd/m² DCI P3 Coverage
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What it is: How much of the DCI-P3 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
:
29.785 %
Samsung K6250 2020 Color Volume Picture
Normalized Rec 2020 Coverage
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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 %
:
46.734 %
10,000 cd/m² Rec 2020 Coverage
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What it is: How much of the DCI-P3 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters: HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
:
21.800 %

The Samsung K6250 can't produce a wide range of colors at different luminosities.

10 Image Retention
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What it is: How much a static image is retained on a TV screen after a certain amount of time.
When it matters: When watching TV show, playing video games or when using your TV as a PC monitor.
IR after 0 min recovery
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What it is: Image retention measured right after the static image exposure, without recovery time.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.000 %
IR after 2 min recovery
Show Help
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%
:
0.000 %
IR after 4 min recovery
Show Help
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%
:
0.000 %
IR after 6 min recovery
Show Help
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%
:
0.000 %
IR after 8 min recovery
Show Help
What it is: Image retention measured after a recovery time of 8 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.000 %
IR after 10 min recovery
Show Help
What it is: Image retention measured after a recovery time of 10 minutes.
When it matters: When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value: 0 is perfect.
Noticeable difference: 0.015%
:
0.000 %

7.0 Reflections
Show Help
What it is: How much light is reflected by the TV.
When it matters: Bright rooms.
Score components: Subjectively assigned
Samsung K6250 Reflections Picture Samsung K6250 Bright Room Picture
Reflection
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What it is: Ratio of ambient light reflected by the TV.
When it matters: Ambient light in the room.
Good value: < 1%
Noticeable difference: 0.5%
:
2.4 %
Screen Finish
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What it is: Type of coating on the screen.
When it matters: Bright objects in the direct reflection path (for example, opposite the TV).
Good value: Glossy is good for ambient light, but not for direct reflections.
:
Semi-gloss

The K6250 is average at dealing with reflections. The semi-gloss finish helps to diffuse reflections. The curved screen spreads them across the screen, but in doing so reduces the intensity of the reflections making them easier to see through. Some rainbow effect can be seen around reflections.

0 3D
Show Help
What it is: Optional 3D video capability on TV.
When it matters: 3D movies and videos.
Score components: Subjectively assigned
3D
Show Help
What it is: If it can display a picture in 3D.
When it matters: 3D movies & videos.
:
No
3D Type
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What it is: The 3D technology used by the TV.
When it matters: 3D movies & videos.
Good value: Active have better resolution, but flickers. Passive is more comfortable, but loses half the vertical resolution.
:
No
2D to 3D
Show Help
What it is: Feature that converts 2D content to 3D.
When it matters: If you want to watch 2D content in 3D. Note that the quality is not as good as that of native 3D.
:
No

This TV doesn't support any 3D features, just like all other Samsung TVs this year.

Pixels
6.1

Motion

Unfortunately the K6250 is unable to handle motion very well. Those sensitive to judder will notice it when watching movies, regardless of the source. The TV has a 60Hz panel, and so can't interpolate 60fps content to any higher frame rate. The motion blur is good, with only a short trail following moving objects. 

7.6 Motion Blur
Show Help
What it is: Amount of blur on fast movement.
When it matters: Sports, video games.
Score components:
Samsung K6250 Motion Blur Picture Samsung K6250 Response Time Chart
Response Time
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What it is: How quickly pixels can change color.
When it matters: Fast movement.
Good value: < 20ms
Noticeable difference: 10ms
:
18.8 ms
Overshoot
Show Help
What it is: When TV’s pixels adjust too far; how quickly they come back.
When it matters: Fast movement.
Good value: < 10ms
Noticeable difference: 10ms
:
0.6 ms

The response time is good and only results in a short trail following moving objects. The backlight uses PWM to dim, and so flickers at 120Hz. This can be seen in the clear duplications following the logo.

4.8 Image Flicker
Show Help
What it is: Luminosity pattern when displaying images
When it matters: Sports, video games, when TV is used as a PC monitor
Score components:
Samsung K6250 Backlight Picture
PWM Dimming Frequency
Show Help
What it is: Flickering pattern at different luminosities.
When it matters: For people sensitive to flickering.
Good value: N/A or high frequencies (> 300 Hz)
:
120 Hz
BFI
Show Help
What it is: Option to turn screen black between frames
When it matters: Reduces eye tracking blur in sports or video games
Good value: Yes
:
Yes
Samsung K6250 BFI Picture Samsung K6250 BFI Frequency Picture
BFI Frequency
Show Help
What it is: Lowest possible frequency of flickering pattern
When it matters: Reduces eye tracking blur in sports or video games
Good value: 60 Hz
:
60 Hz
BFI In Game Mode
Show Help
What it is: Option to insert black frames when in the best settings for gaming
When it matters: Reducing eye tracking blur for video games
Good value: Yes
:
No

0 24p Playback
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What it is: Whether 24p content can play without any judder.
When it matters: Only 24p content (mostly just movies).
Judder-free 24p
Show Help
What it is: Judder-free movies over 24p signal.
When it matters: Blu-ray and DVD movies; 24 hz PC signal.
:
No
Judder-free 24p via 60p
Show Help
What it is: Judder-free movies over 60p signal.
When it matters: Movies from streaming devices (Apple TV, Fire TV, etc.); 60 hz PC signal.
:
No
Judder-free 24p via 60i
Show Help
What it is: Judder-free movies over 60i signal.
When it matters: Movies from cable/satellite boxes.
:
No

The K6250 is unable to play movies from any source without some judder, but most people won't notice it.

5.0 Motion Interpolation
Show Help
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.
Motion Interpolation (30 fps)
Show Help
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
Samsung K6250 Motion Interpolation (30 fps) Picture
Motion Interpolation (60 fps)
Show Help
What it is: Whether the TV can take a 60 fps input and heighten the frame rate to at least 100 fps.
When it matters: 60 fps videos. Includes some video games, some sports channels.
:
No

The K6250 has a 60Hz panel, which is able to interpolate 30Hz content. To do this, set 'Auto Motion Plus' to 'Custom' and increase the 'De-Judder' slider.

6.0

Inputs

Show Help
Score components:

The K6250 has average input lag, which should be fine most casual users. It is a 1080p TV, and so is limited in the range of supported resolutions. It does support chroma subsampling, which results in clear text when used as a PC monitor.

6.6 Input Lag
Show Help
What it is: Delay between input and onscreen reaction.
When it matters: Video games; when TV is used as PC monitor.
1080p @ 60Hz
Show Help
What it is: Lowest input lag possible on TV with a 1080p @ 60Hz input.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40ms
Noticeable difference: 15ms
:
47.2 ms
1080p With Interpolation
Show Help
What it is: Lowest input lag 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: < 40ms
Noticeable difference: 15ms
:
90.8 ms
1080p @ 60Hz Outside Game Mode
Show Help
What it is: Input lag in picture modes other than the specific game mode.
When it matters: For playing video games while retaining access to all features of the TV.
Good value: < 40ms
Noticeable difference: 15ms
:
96.1 ms
1080p @ 60Hz @ 4:4:4
Show Help
What it is: Lowest input lag possible on TV when displaying 1080p @ 60Hz @ 4:4:4
When it matters: PC monitor.
Good value: < 40ms
Noticeable difference: 15 ms
:
47.2 ms
4k @ 60Hz
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz.
When it matters: Video games and also when TV is used as PC monitor.
Good value: < 40ms
Noticeable difference: 15 ms
:
N/A
4k @ 60Hz @ 4:4:4
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4.
When it matters: PC Monitor
Good value: < 40ms
Noticeable difference: 15 ms
:
N/A
4k @ 60Hz + HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz with HDR.
When it matters: HDR Video games.
Good value: < 40ms
Noticeable difference: 15 ms
:
N/A
4k @ 60Hz @ 4:4:4 + 8 bit HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4 with HDR enabled at 8 bit
When it matters: PC Monitor with an HDR capable graphic card
Good value: < 40ms
Noticeable difference: 15 ms
:
N/A

The input lag of the K6250 is average. Even casual gamers might notice some delay between controller actions and the result on the screen. Label the input as 'PC' to achieve the lowest input lag. With the input labelled as 'Game Console', and the 'Game' special viewing mode the input lag is 53.2ms.

2.0 Supported Resolutions
Show Help
What it is: Different resolutions supported by TV.
When it matters: PC monitor usage.
Score components:
  • 20% 1080p @ 60Hz @ 4:4:4
  • 20% 1080p @ 120Hz
  • 20% 4k @ 30Hz @ 4:4:4
  • 20% 4k @ 60Hz
  • 20% 4k @ 60Hz @ 4:4:4
1080p @ 60Hz @ 4:4:4
Show Help
What it is: Crisp text on 1060p @ 60 hz signal.
When it matters: PC productivity and 60 fps gaming.
:
Yes
1080p @ 120Hz
Show Help
What it is: 120 fps 1080p signal supported.
When it matters: PC gaming.
:
No
4k @ 30Hz @ 4:4:4
Show Help
What it is: Crisp text on 4k @ 30 hz signal.
When it matters: PC productivity and gaming.
:
No
4k @ 60Hz
Show Help
What it is: 60 fps 4k signal supported.
When it matters: PC productivity and gaming.
:
No
4k @ 60Hz @ 4:4:4
Show Help
What it is: Crisp text on 4k @ 60 hz signal.
When it matters: Productivity and 60 fps gaming in 4k.
:
No

The K6250 is a 1080p TV, and so cannot accept or display any resolutions beyond this. It has a 60Hz panel, and so cannot display a 120Hz signal. It does support chroma subsampling though, so text appears clear on all backgrounds. To do this, label the input to 'PC'. The input lag in 'PC' mode is 47.2ms.

Side Inputs
Samsung K6250 Side Inputs Picture

All inputs are located on the side, same as the Samsung KU6300.

Rear Inputs

All of the inputs are located on the side of the TV.

Total Inputs
HDMI : 3
USB : 2
Digital Optical Audio Out : 1
Analog Audio Out 3.5mm : 0
Analog Audio Out RCA : 0
Component In : 1 (incl. adapter, shared)
Composite In : 1 (incl. adapter, shared)
Tuner (Cable/Ant) : 1
Ethernet : 1
DisplayPort : 0
IR In : 0
SD/SDHC : 0

Inputs Specifications
HDR10
Show Help
What it is: Standard HDR format.
When it matters: Most common format. All UHD Blu-ray discs are required to have it.
:
No
Dolby Vision
Show Help
What it is: Better format, due to its dynamic nature.
When it matters: Currently, only available via streaming.
:
No
5.1 Passthrough ARC Dolby Digital
Show Help
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
Show Help
What it is: TV can receive and pass DTS 5.1 signal to receiver via HDMI ARC.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough Optical Dolby Digital
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What it is: TV can receive and pass Dolby Digital signal to receiver via digital optical.
When it matters: 5.1 audio on DVDs and Blu-rays.
:
Yes
5.1 Passthrough Optical DTS
Show Help
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 : No
ARC : Yes (HDMI 2)
USB 3 : No
HDCP 2.2 : No
CEC : Yes
MHL : No
Variable Analog Audio Out : No

6.7

Sound Quality

Sound quality of the Samsung K6250 is slightly below average. The frequency response is a bit better than average, but there is significant distortion at higher volumes. If you care about the sound quality, a cheap soundbar would be an improvement.

Note: Sound Quality test for TVs reviewed before 2017 was performed at 75dB, 85dB, and Max SPL. Starting 2017, the target SPL levels have been changed to 70dB, 80dB, and Max dB SPL.

7.2 Frequency Response
Show Help
What it is: Sound level at different frequencies.
When it matters: For balanced sound.
Score components:
Samsung K6250 Frequency Response Picture
Std. Dev. @ 70
Show Help
What it is: Variance of the sound level at different frequencies.
When it matters: 70 dB.
Good value: < 4 dB
Noticeable difference: 2 dB
:
3.04 dB SPL
Std. Dev. @ 80
Show Help
What it is: Variance of the sound level at different frequencies.
When it matters: 80 dB.
Good value: < 4 dB
Noticeable difference: 2 dB
:
3.45 dB SPL
Std. Dev. @ Max
Show Help
What it is: Variance of the sound level at different frequencies.
When it matters: Max volume.
Good value: < 4 dB
Noticeable difference: 2 dB
:
5.93 dB SPL
Max
Show Help
What it is: Max volume on the TV at a distance of 1 meter.
When it matters: For listening to loud audio.
Good value: > 90 dB
Noticeable difference: 2 dB
:
90.9 dB SPL
Low-end Cutoff
Show Help
What it is: How low of a frequency at which the bass starts.
When it matters: Movies; gaming.
Good value: < 50Hz
Noticeable difference: 10Hz
:
95.14 Hz

Average performance. Maximum volume and low-end cutoff are about average, for a TV. Frequency response is good at 75 and 85. However, at maximum volume considerable pumping and compression is present.

5.7 Total Harmonic Distortion
Show Help
What it is: Pureness of a single frequency.
Score components:
Samsung K6250 Total Harmonic Distortion Picture
Distortion @ 70
Show Help
What it is: Amount of distortion.
When it matters: 70 dB.
Good value: < 0.100
Noticeable difference: 0.100
:
0.016
Distortion @ 80
Show Help
What it is: Amount of distortion.
When it matters: 80 dB.
Good value: < 0.100
Noticeable difference: 0.100
:
0.064
Distortion @ Max
Show Help
What it is: Amount of distortion.
When it matters: 85 dB.
Good value: < 0.100
Noticeable difference: 0.100
:
0.188

Poor distortion performance. The overall amount of harmonic distortion is decent at 75 and 85dB SPL. However, at maximum volume, there's noticeable rise in harmonic distortion, which may not necessarily be audible in real-life situations.

8.5

Smart Features

Show Help
Score components: Subjectively assigned
Samsung K6250 Smart TV Picture
Smart OS : Tizen (2016)

The Samsung K6250 comes with the latest Tizen smart OS. This is the same platform found in the other 2016 Samsung TVs, such as the KU6300. After turning on the TV it does take some time to load, but is simple to use, and feels responsive when it is up and running. There is a wide range of supported applications available in the 'App store'. It is easy to watch videos or movies with a thumb drive or USB hard drive.

Apps
Samsung K6250 Apps Picture

The K6250 supports the most popular applications such as Netflix, YouTube and Amazon Video. There are a wide range of applications available from the store.

0 Ads
Show Help
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:
Ad-free
Show Help
What it is: The TV's ability to provide an ad-free experience.
When it matters: When using the smart features.
:
No
Opt-out
Show Help
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.
:
No

TV Controls
Samsung K6250 Controls Picture

Controls are located under the right side of the TV, same as most of the 2016 Samsung TVs such as the KU7000. They provide basic operations, such as changing the volume, input or channel and are easy to access if wall mounted.

Remote
Samsung K6250 Remote Picture
Remote : Smart

The remote is the same smart remote found with the Samsung KU6300. It is simple and works well.

In The Box
Samsung K6250 In The Box Picture

  • Manuals
  • Stand cover
  • Wall mount spacers
  • Cable management piece
  • Composite video adapter
  • Component video adapter
  • Batteries
  • Remote

Misc
Power Consumption : 42 W
Power Consumption (Max) : 77 W
Firmware : 1111

Differences between Sizes and Variants

We tested the 55" (UN55K6250) version FA01. For the most part, we expect our review to be valid for the other sizes.

If someone comes across a different type of panel or if their Samsung K6250 doesn't correspond to our review, let us know and we will update the review.

Size Model
40" UN40K6250
49" UN49K6250
55" UN55K6250

Compared to other TVs

Samsung K6250 Group Shot Picture
Top left: Samsung KU6300 (UN55KU6300). Bottom left: TCL FS3750 (48FS3750). Middle: Samsung K6250 (UN55K6250). Top right: Vizio M Series 2016 (M70-D3). Bottom right: LG LH5750 (55LH5750).  Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

While the Samsung K6250 is the cheapest curved TV, it is still priced well above the competition. Other TVs available at a similar price offer 4k resolution, and sometimes other features to improve the picture quality such as local dimming. Keep this in mind when viewing our recommendations below.

Samsung KU6300
40" 43" 50" 55" 60" 65" 70"

The Samsung KU6300 is available for about the same price, but delivers better picture quality and a 4k resolution. It offers better performance in almost all areas. Some people may prefer the curved screen and more premium look of the Samsung K6250, but the Samsung KU6300 is much better value.

TCL FS3750
40" 48" 55"

The TCL FS3750 is a budget 1080p TV, available at half the price of the Samsung K6250. Despite the price difference, the TCL FS3750 provides similar picture quality and better motion performance. For gamers it also offers the advantage of great input lag. Most people are better off saving the money and buying the TCL FS3750.

Vizio M Series 2016
50" 55" 60" 65" 70" 80"

The Vizio M Series 2016 is a mid-range 4k TV available for about the same price. It offers much better picture quality, especially in dark scenes due to some premium features such as local dimming. The smaller sizes of the Vizio M Series 2016 have a 60Hz panel like the Samsung K6250. The motion performance and input lag are great. Overall the Vizio M Series 2016 provides much better value.

LG LH5750
55"

The LG LH5750 is cheap 1080p TV, with similar picture quality. It has more motion blur, and the picture quality degrades a bit faster when viewed at an angle. It has the advantage in a bright room, where the semi gloss finish works better to deal with reflections and the screen gets brighter to combat glare. There are better TVs out there for the same price.

Conclusion
SEE PRICE
Amazon.com

6.6Mixed Usage
Show Help
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:
Below average for a wide range of uses. Picture quality is average. Dark scene performance is good, but lacks features such as local dimming to improve picture quality. Motion blur is good, but input lag is worse than most TVs.
5.8Movies
Show Help
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:
Poor movie performance. Dark scene performance is good with deep blacks, but lacks features such as local dimming to improve it further. Picture quality is average. Those sensitive to judder may notice it while watching movies.
6.9TV Shows
Show Help
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:
Average for watching TV in a bright room. Average at handling reflections, but can't get bright enough to combat glare. Upscaling of low quality content such as cable is good. Picture quality is average, and degrades when viewed at an angle. Smart features work well and are easy to use.
7.1Sports
Show Help
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.
Score components:
Sports performance is slightly better than average. Fast movements look good due to the fairly quick response time, resulting in only a little motion blur. Uniformity is good. Picture quality is average.
7.2Video Games
Show Help
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.
Score components:
Average for video games. Fast motion results in slightly below average blur which is good, but input lag is average. Picture quality is average.
5.2HDR Movies
Show Help
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:
Doesn't support HDR. Picture quality is average. Doesn't support a wide color gamut or high peak brightness of highlights.
4.7HDR Gaming
Show Help
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.
Doesn't support any HDR formats. Picture quality is decent but can't produce bright highlights or vivid colors.
5.8PC Monitor
Show Help
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:
Poor choice for a PC monitor. Native 1080p TV so doesn't support higher resolutions. Motion blur is good, but input lag is higher than most TVs which results in worse performance.

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Questions & Answers

1 ANSWERED QUESTIONS
1
Hi, Thanks for the review. After trying a lot of 4k TV's, eventually I gave up on them. All seem to have some kind of a jello effect on the screen, and/or yellow cloud, some kind of a blob that comes and goes, when the incoming signal is less than 4k(480, 720, 1080), no matter what the settings are. Only the 1080p TV's show a clean picture. I've shortened my list of options down to these: Sony W650D and Samsung K6250. Both 40". Don't like the LG or Vizio or TCL or Hisense or any other "no name" brand. Primarily watching OTA shows, movies and news and the incoming signal is 480i, 720p and 1080i. We also watch some shows and movies on Hulu and news by streaming in 1080p. All of that always in a dark room directly in front of the TV set, about 7-8' away. Not interested in any games, smart features or anything else. Which one would be better ? Thank you.
Go with the Sony W650D. The Sony TVs provide excellent upscaling of lower quality content, and many options to adjust the motion handling to your preference.
We are not taking any more questions for this product because we no longer have it in our lab.