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    Table of Contents
  1. Intro
  2. Design
    1. Stand
    2. Back
    3. Borders
    4. Thickness
  3. 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
  4. Motion
    1. Motion Blur
    2. Image Flicker
    3. 24p Playback
    4. Motion Interpolation
  5. Inputs
    1. Input Lag
    2. Supported Resolutions
    3. Side Inputs
    4. Rear Inputs
    5. Total Inputs
    6. Inputs Specifications
  6. Sound Quality
    1. Frequency Response
    2. Total Harmonic Distortion
  7. Smart Features
    1. Apps
    2. Ads
    3. TV Controls
    4. Remote
    5. In The Box
    6. Misc
  8. Sizes and Variants
  9. Compared
  10. Conclusion
  11. Q&A
Reviewed on May 27, 2016 , Jean-Francois Lize

Samsung KU6300
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
7.4Mixed 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:
6.9Movies
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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:
7.1TV 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:
7.3Sports
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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:
8.4Video 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:
7.2HDR 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:
8.0HDR 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.
6.9PC 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:
This tv has been discontinued.
It was replaced by the Samsung MU6300

Type : LED
Resolution : 4k
Refresh Rate : 60 Hz

The 4k Samsung KU6300 Series UHD LED TV doesn't have a stellar picture quality but is good enough for most content. It supports an HDR input, but it doesn't have the capabilities to display a more colorful picture. It also suffers from bad reflections and constant judder on movies. When watched from the side, its picture quality also diminishes.

Pros
  • Low input lag
  • Great blacks and contrast ratio
Cons
  • Reflects more lights than average
  • Average gray uniformity
  • Judder is present in movies

Test Results
Design 8.5
Picture Quality 7.4
Motion 6.2
Inputs 8.2
Sound Quality 6.5
Smart Features 8.5

Check Price

8.5

Design

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Score components: Subjectively assigned
Samsung KU6300 Design Picture
Curved : No

The Samsung KU6300 delivers the same look and design as last year's Samsung J5000, J5200 and J5500, keeping it simple for a standard budget television. The borders are still average, and the stand, while still stable, has a wide footprint.

Stand
Samsung KU6300 Stand Picture

The stand is quite stable, but has a large footprint.

Footprint of the 55" TV stand: 33.1" x 12.6"

Back
Samsung KU6300 Back Picture
Wall Mount : Vesa 400x400

The backing of the Samsung TV has a nice plastic design to it. The ports, which are located on the side, will be helpful when needing to have access to them while the TV is wall mounted.

Borders
Samsung KU6300 Borders Picture
Borders : 0.63" (1.6 cm)

The borders are made up of reflective plastic that will attract finger prints easily.

Thickness
Samsung KU6300 Thickness Picture
Max Thickness : 2.44" (6.2 cm)

The thickness of the KU6300 is about the same as last year's model Samsung JU6500.

7.4

Picture Quality

The Samsung KU6300 has a good picture quality overall. High quality content like Blu-rays appears richly detailed and lower quality content like DVDs and cable TV doesn't look bad at all. Even with the lights out, dark scenes appears deep, thanks to its high contrast ration and good black uniformity. The KU6300 does have some down sides though. The viewing angle is limited due to the VA panel it's using and its gray uniformity is also not so great. 

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 KU6300 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
:
5411 : 1

The blacks are deep on the Samsung KU6300, which offers a high contrast ratio and a better picture quality.

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.
:
Direct

There is no local dimming option on this TV, so the blacks cannot get darker.

7.7 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.
:
431 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
:
203 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
:
357 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
:
439 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
:
437 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
:
437 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
:
203 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
:
357 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
:
439 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
:
437 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
:
437 cd/m2

The SDR peak brightness is average and almost the same as when watching HDR content, which is good for people watching mostly standard TV content, which lack HDR for the moment.

7.6 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.
:
413 cd/m2
HDR Peak 2% Window
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What it is: The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters: Bright highlights, present on screen for a short time; especially for HDR content.
Good value: > 1000 cd/m2
Noticeable difference: 100 cd/m2
:
242 cd/m2
HDR Peak 10% Window
Show Help
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
:
385 cd/m2
HDR Peak 25% Window
Show Help
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
:
434 cd/m2
HDR Peak 50% Window
Show Help
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
:
433 cd/m2
HDR Peak 100% Window
Show Help
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
:
434 cd/m2
HDR Sustained 2% Window
Show Help
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
:
242 cd/m2
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
:
385 cd/m2
HDR Sustained 25% Window
Show Help
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
:
343 cd/m2
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
:
433 cd/m2
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
:
434 cd/m2

The TV achieves a pretty average peak brightness when maxed out, and HDR is on. When an image is displayed throughout the entire screen, it stays bright, which is great.

Update 02/08/2016: Under the latest firmware, the 'CE dimming' is stronger than before and the peak brightness of the 2% and 10% windows is now less than what we measured when we first did the original review.

6.6 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 KU6300 50% Uniformity Picture
50% Std. Dev.
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What it is: Average squared difference of pixels when displaying a mid 50% gray.
When it matters: Solid colors. Sports, panning shots.
Good value: < 2.5%
Noticeable difference: 1%
:
4.093 %
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%
:
0.224 %
Samsung KU6300 5% Uniformity Picture
5% Std. Dev.
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What it is: Average squared difference of pixels when displaying a mid 5% gray.
When it matters: Dark scenes.
Good value: < 1.15%
Noticeable difference: 1%
:
0.726 %
5% DSE
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What it is: High-frequency variance of uniformity. Dark spots on the screen.
When it matters: Dark scenes.
Good value: < 0.116%
:
0.132 %

The television has a lot of issues with gray uniformity as corners are darker, black patches can be seen throughout the display and horizontal bending waves are visible.

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
Samsung KU6300 Color Shift Picture
Color Shift
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What it is: Angle where the colors noticeable shift compared to when viewed from directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
26 °
Samsung KU6300 Brightness Picture
Brightness
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What it is: Angle where the brightness drops to 50% of the brightness directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
31 °
Samsung KU6300 Black Level Picture
Black Level
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What it is: Angle where the black level drops to 50% of the black level directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters: Large living rooms with multiple viewing positions.
Good value: > 50°
Noticeable difference: 10°
:
19 °

Just like the Samsung KS Series, it has an viewing angle of 20 degrees, this is to be expected from a VA panel. At an angle, colors will shift and blacks will become less deep.

9.8 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 KU6300 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.
:
0.503 %

Our unit has an almost perfect black uniformity. No clouding or flash lighting can be seen.

9.0 Gradient
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What it is: How finely levels of color can be displayed.
When it matters: Details in shadows, sky and skin tones. Matters more for HDR content.
Score components: Subjectively assigned
Samsung KU6300 Gradient Picture
Color Depth
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What it is: Number of bits per pixel to represent a specific color. Note: we consider 8-bit with dithering to be equivalent to 10-bit, as long as the 10-bit gradient looks smooth.
When it matters: HDR content like UHD Blu-ray players. Won't matter for cable TV, regular Blu-ray movies, video game consoles or content displayed from a Windows PC. Those are limited to 8-bit color.
Good value: 10-bit.
Noticeable difference: 1 bit.
:
10 Bit

The Samsung KU6300 can display our gradient test image fairly well. On our test picture, the gradation is smooth overall in the light shades with some small anomalies in the darker shades, especially in the green color. But it should not be an issue in regular content.

Update 10/26/2016: Our original test was showing 8 bit gradations due to incorrect drivers on our system. After some correction to our test apparatus, we have retested the color depth and found that it is able to display a 10 bit gradient smoothly.

8.1 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 KU6300 Pre Calibration Picture Samsung KU6300 Pre Gamma Curve Picture Samsung KU6300 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
:
3.84
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
2.8393
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
:
2.23

The White Balance dE was pretty high out of the box, as for the Color dE and the Gamma, they were above average.

9.9 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 KU6300 Post Calibration Picture Samsung KU6300 Post Gamma Curve Picture Samsung KU6300 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
:
0.19
Color dE
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What it is: Average inaccuracy of colors.
When it matters: All colors.
Good value: < 3
Noticeable difference: 1
:
0.2343
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
:
2.2

Like other Samsung TVs, calibration went smoothly and helped reduce both white balance and color dE to a very low level.

8.0 480p Input
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What it is: Quality of a 480p input.
When it matters: Standard definition TV, DVDs.
Score components: Subjectively assigned
Samsung KU6300 480p Picture

Standard definition TV is upscaled well without any problems.

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 KU6300 720p Picture

720p content also looks good when displayed on the KU6300.

9.0 1080p Input
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What it is: Quality of a 1080p input.
When it matters: Blu-rays, streaming video, video files, video games.
Score components: Subjectively assigned
Samsung KU6300 1080p Picture

Blu-rays looks sharp and crisp when upscaled.

10 4k Input
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What it is: Quality of a 4k UHD input.
When it matters: Streaming video, UHD Blu-rays, some PCs.
Score components: Subjectively assigned
Samsung KU6300 4k Picture

4k UHD Blu-rays look good and very sharp on the KU6300.

6.9 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 KU6300 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%
:
77.23 %
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%
:
85.22 %
Samsung KU6300 Color Gamut Rec.2020 Picture
Rec 2020 xy
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What it is: Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters: Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value: > 90%
Noticeable difference: 5%
:
54.74 %
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%
:
60.72 %

The range of colors the Samsung TV can display is only good enough for Rec. 709 content. Sending an HDR signal or settings the color space to native will not give you a wider color gamut.

5.5 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 KU6300 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 %
:
60.917 %
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.
:
33.096 %
Samsung KU6300 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 %
:
45.063 %
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.
:
23.943 %

The KU6300 can't display a wide range of colors and so can't reproduce much of the P3 or 2020 color volume.

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.
Samsung KU6300 Image Retention Picture
IR after 0 min recovery
Show Help
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 %

No image retention could be notice at all after running our test. Even on the first test picture, right after the 10 minutes exposure to the burn-in image, nothing was found after our computer analysis, which is great. This is in line with others VA TVs results and is good for people looking for a good TV for video games, to use as a PC monitors and for shop or office that need to display a lot of static contents.

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 KU6300 Reflections Picture Samsung KU6300 Bright Room Picture
Reflection
Show Help
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
Show Help
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

This Samsung TV is worst than average when it comes to handling reflections, especially in a bright room environment. This is a bit surprising because it reflects more lights than even the cheaper Samsung TVs from last year.

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

Pixels
6.2

Motion

This Samsung TV is not the best for handling motion. On one hand, it has some descent response time so fast pace action will look good on screen, without too much motion blur. But on the other, it is plague with judder issues for movies on all type of source and can only interpolate 30 fps since this is an 60Hz TV.

7.7 Motion Blur
Show Help
What it is: Amount of blur on fast movement.
When it matters: Sports, video games.
Score components:
Samsung KU6300 Motion Blur Picture Samsung KU6300 Response Time Chart
Response Time
Show Help
What it is: How quickly pixels can change color.
When it matters: Fast movement.
Good value: < 20ms
Noticeable difference: 10ms
:
18.7 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
:
0.0 ms

The motion blur is good, but not great. The response time is favorable, and the trail that is behind the logo has an average length that is faint. It does have PWM flickering, but it only occurs when the back light is below 10 out of 20.

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 KU6300 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 KU6300 BFI Picture Samsung KU6300 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

The KU6300 is able to flicker the backlight at 60Hz, which helps to clear up motion blur due to eye tracking. Unfortunately as with other Samsung TVs this isn't available in the 'Game' picture mode.

0 24p Playback
Show Help
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

Even 24p sources have little judder. In fact, judder is present on all sources for movies.

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 KU6300 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

Enabling 'Action Motion Plus' to 'Auto' will allow 30fps content become smoother, this cannot be said about 60fps content. Even though they advertise that it has '120Hz Motion Rate', this is a 60Hz TV.

8.2

Inputs

Show Help
Score components:

Those looking for a TV with low input lag that can also be use as a monitor will be please, since it can display a wide range of resolutions and can support color sub-sampling. Also, those who are planing to wall-mount this TV with be happy to know that all the ports can be accessible from the side.

8.3 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
:
19.8 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
:
109.9 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
:
122.4 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
:
36.7 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
:
20.4 ms
4k @ 60Hz @ 4:4:4
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4.
When it matters: PC Monitor
Good value: < 40ms
Noticeable difference: 15 ms
:
36.7 ms
4k @ 60Hz + HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz with HDR.
When it matters: HDR Video games.
Good value: < 40ms
Noticeable difference: 15 ms
:
20.4 ms
4k @ 60Hz @ 4:4:4 + 8 bit HDR
Show Help
What it is: Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:4:4 with HDR enabled at 8 bit
When it matters: PC Monitor with an HDR capable graphic card
Good value: < 40ms
Noticeable difference: 15 ms
:
36.7 ms

Excellent for fast pace competitive gaming, it will definitely give you an advantage over other gamers. 'Game' mode has to be selected from the 'Special viewing modes' under the 'Picture' menu to get the lowest input lag.

8.0 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.
:
Yes
4k @ 60Hz
Show Help
What it is: 60 fps 4k signal supported.
When it matters: PC productivity and gaming.
:
Yes
4k @ 60Hz @ 4:4:4
Show Help
What it is: Crisp text on 4k @ 60 hz signal.
When it matters: Productivity and 60 fps gaming in 4k.
:
Yes

Almost all the resolutions that we have tested are supported on this TV, the only exception was 1080p@120Hz, but that was to be expected for a Samsung TV. For sharper text 4:4:4 you must set the input type to 'PC'. For 4K@60Hz@4:4:4 you must enable UHD mode. This is only possible on HDMI1.

Side Inputs
Rear Inputs

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)
Composite In : 1 (incl. adapter)
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.
:
Yes
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
Show Help
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 : Yes (HDMI 1)
ARC : Yes (HDMI 3)
USB 3 : No
HDCP 2.2 : Yes
CEC : Yes
MHL : No
Variable Analog Audio Out : No

6.5

Sound Quality

Sound on the Samsung KU6300 isn't that bad when it isn't at its maximum volume. Still, even a budget sound bar would be way better than the TV speakers and would be recommended for anyone that care about sound.

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 KU6300 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
:
3.54 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
:
3.55 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
:
5.53 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
:
88.7 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
:
89.80 Hz

Decent frequency response. The low-end cutoff and the responses at 75dB and 85dB are good. However, maximum loudness and frequency response at maximum volume are subpar, since pumping and compression will be present.

5.0 Total Harmonic Distortion
Show Help
What it is: Pureness of a single frequency.
Score components:
Samsung KU6300 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
:
0.023
Distortion @ 80
Show Help
What it is: Amount of distortion.
When it matters: 80 dB.
Good value: < 0.100
Noticeable difference: 0.100
:
0.185
Distortion @ Max
Show Help
What it is: Amount of distortion.
When it matters: 85 dB.
Good value: < 0.100
Noticeable difference: 0.100
:
0.306

Poor performance. The overall amount of harmonic distortion at 75dB is quite low. However, there is a significant rise in the harmonic distortion at higher volumes, which negatively affects the sound quality.

8.5

Smart Features

Show Help
Score components: Subjectively assigned
Samsung KU6300 Smart TV Picture
Smart OS : Tizen (2016)

Just like the Samsung KS Series, it includes the new Tizen 2016 platform, with some minor differences. In terms of the applications, the KU6300 has less pre-loaded application than the KS Series, this shouldn’t be a problem though since you can download them from the menu either way.  The performance slacks, as menus would freeze often for a lengthy duration, and the remote would flash and disconnect because of it.

When a new device is detected (such as when a computer is woken from sleep while plugged into an HDMI port) the TV automatically switches to this device. This may be an annoyance if you are watching other content at the time.

Apps
Samsung KU6300 Apps Picture

Just like the Samsung KS Series, all the popular applications such as Youtube, Amazon and Netflix are available.

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

Unfortunately, Samsung's entry level 4k TV features ads. Much like other Tizen-based sets, they cannot be disabled.

TV Controls
Samsung KU6300 Controls Picture

The TV control can be found behind the television on the right side.

Remote
Samsung KU6300 Remote Picture
Remote : Smart

The remote is very similar to the Samsung KS series with some differences. The back of the remote has a reflective plastic that will easily track finger prints, unlike the Samsung KS Series gray reflective plastic, the buttons protrude out rather than being inwards and the volume up and down, as well as the channel up and down buttons are black rather than chrome. The remote also weighs less than the KS Series remote and lacks the microphone option.

In The Box
Samsung KU6300 In The Box Picture

  • Manual
  • Remote
  • Batteries
  • Power Cable
  • Component In adapter
  • Composite In adapter

Misc
Power Consumption : 48 W
Power Consumption (Max) : 161 W
Firmware : 1103

Differences between Sizes and Variants

We tested the 55" (UN55KU6300) version FA01. For the most part, we expect our review to be valid for the other sizes of this model.

The KU6270 and KU6290 are variants of the KU6300. We expect them to have the same picture quality as the KU6300 reviewed. The only major differences are that the KU6270 and KU6290 lack Bluetooth connectivity and include a remote that looks identical to the KU6300 remote but lacks the features that use Bluetooth, such as pairing and Universal Remote Control.

Update 2017/05/12: The KU6270 does not have component/composite video inputs, but the KU6290 does.

If someone comes across a different type of panel or if their Samsung KU6300 doesn't correspond to our review, let us know and we will update the review.

Size Model US UK Warehouse Warehouse long
40" UN40KU6300 UN40KU6300FXZA UE40KU6000 UN40KU630D UN40KU630DFXZA
43" UN43KU6300 UN43KU6300FXZA UE43KU6000 UN43KU630D UN43KU630DFXZA
50" UN50KU6300 UN50KU6300FXZA UE50KU6000 UN50KU630D UN50KU630DFXZA
55" UN55KU6300 UN55KU6300FXZA UE55KU6000 UN55KU630D UN55KU630DFXZA
60" UN60KU6300 UN60KU6300FXZA UE60KU6000 UN60KU630D UN60KU630DFXZA
65" UN65KU6300 UN65KU6300FXZA UE65KU6000 UN65KU630D UN65KU630DFXZA
70" UN70KU6300 UN70KU6300FXZA N/A UN70KU630D UN70KU630DFXZA

Compared to other TVs

Samsung KU6300 Group Shot Picture
Top left:: LG UH7700 (55UH7700). Bottom left: Samsung KS8000 (UN55KS8000). Middle: Samsung KU6300 (UN55KU63000). Top right: Vizio D 4k 2016 (D50u-D1). Bottom right: TCL US5800 (55US5800). Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Samsung KU6300 has fierce competition in the budget range. It is a good choice if you want an affordable versatile TV.

Vizio D Series 4k 2016
40" 50" 55" 58" 65"

The Vizio D Series 4k 2016 is similar to the Samsung KU6300 but with a few key differences. It doesn't support HDR, has somewhat worse upscaling but offers local dimming and better motion. For high quality content, its picture quality is slightly better. Since it is sold for cheaper, most people should buy the Vizio D 4k 2016 except for those who watch a lot of low quality content like DVDs and cable TV.

Samsung JU6500
40" 48" 50" 55" 60" 65" 75"

Last year Samsung JU6500 shares lot of similarities with the KU6300. It doesn't support HDR and isn't as good for watching movies but it has slightly less blur which makes it a better option for sports.

Samsung KS8000
49" 55" 60" 65"

The Samsung KS8000 is definitely not in the same price range of the KU6300 and it shows. Its picture quality is way better no matter the content. It can get extra bright too so a better fit for the living room. If you have the money, don't hesitate to get the KS8000.

LG UH7700
55" 60" 65"

The LG UH7700 is also more expensive than the Samsung KU6300 but not always better. It is when the TV is viewed from the side but not from directly in front in a dark room. It is better suited for a wide living room with seating on the sides than for watching late night movies.

Conclusion
SEE PRICE
Amazon.com

7.4Mixed 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:
Good TV for a mixed usage. It isn't bad at anything. It will work in any kind of rooms since it is versatile. It is especially good for video games and sports.
6.9Movies
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:
Average for watching movies in the dark. It has a good contrast ratio, but it lacks local dimming to make the blacks even darker. It also has a small judder when watching movies.
7.1TV 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:
Above average for TV shows in a bright room. The screen can get brighter than average, but it reflects a bit more lights than most TVs. It upscales lower resolution content well.
7.3Sports
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:
Good for watching sports. However, the screen is not very uniform, which results in a bit of dirty screen effect on playing fields.
8.4Video 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:
Great for video games. Very low input lag of lag, and not too much motion blur.
7.2HDR 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:
Although the KU6300 support HDR10 input, it does not really benefit from it, since it does not support a wide color gamut and it cannot really get highlight very bright.
8.0HDR 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.
Good for HDR gaming. Picture quality is good. Supports HDR10 but can't really benefit from it due to lack of local dimming and no support for wide color gamut. Input lag is low even in HDR mode. Motion blur is good.
6.9PC 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:
Works well to use as a PC monitor. It supports a wide range of resolution, even 4k @ 60Hz @ 4:4:4, and the input lag is very good.
Questions Found an error?

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Questions & Answers

62 ANSWERED QUESTIONS
141
I don't understand your ratings system. Every single review and customer rating I've been reading has been overwhelmingly positive, but your rating almost treats it like it's a piece of garbage. I was so excited when this new affordable Samsung 4K television came out I was almost headed out the door to purchase it, but upon reading your review, I am now back to my search again; I'm wondering who's correct. Amazon's customer reviews are almost all 5 stars, with most raving about the great picture and features, yet you give it a 6.9. What gives?
On Amazon, products that have great value for the money gets a lot of positive feedbacks and the KU6300 is one of those product. Also, usually people who spend less on a product have lower expectations. We don't factor in the price in our reviews so our score is only representative of the TV performance. This way, the score can be compared to higher end TVs.
69
I live in Brasil, and here there's a Tv 40KU6000, and 40KU6300. This KU6300 is curved. I wonder if this KU6000 is same as the TV you used for the review.

From looking at the specifications on the Samsung Brasil website, the following table lists the models in the USA with their closest equivalents in Brasil.

USBrasil
K6250K6500
KU6300KU6000
KU6500KU6300
KU7000KU6400
KU7500KU6500
KS8000KS7000
KS8500KS7500
KS9000KS9500
61
Best Buy has the Samsung UN55KU6290FXZA on sale for $699. They also have the UN55KU6300 for $200 more. What is the difference and which would be the better TV to buy?
They appear to be very similar. The KU6290 is a slight variant, which is missing bluetooth and has a remote that lacks some smart features that need bluetooth. Save the money and go with the KU6290.
33
I know the reviews were close but if you had to choose the better overall tv from either Sony X900C or the Samsung KU6300, which would you suggest?
Overall, the Sony X900C is better, mainly because it is a higher end TV with more features (like wide color gamut, 120Hz, better viewing angle, etc). But directly in front and in the dark, the Samsung has a better picture quality.
30
Greetings, I'm curious as to the input lag on this display when set to PC mode instead of Game mode as I'd plan to use this for both general PC usage and PC gaming.
When set to PC mode, the input lag is 36.7ms. This should not be an issue for most people but serious gamers should change the input to 'Game Console', even when playing PC games. The advantage of PC mode is the chroma 4:4:4 support, so if this is not necessary for you then you can use 'Game Console' all the time.
18
Hi. I have no idea how to calibrate this TV. Little info online. Any suggestions?
For simple calibration of this TV, you can follow our recommended settings here. To find the picture settings which are best for your TV, follow this guide.
15
So I just bought the KU6300 50inch Samsung. It has HDR PRO. I hook it up to my PS4 on HDMI port 1 and then I switch into GAME mode. After switching, I try to enable HDR and it states that this function is not available. Was wondering if I'm doing something wrong and how you got those settings for the input lag tests.
First you have to set 'HDMI UHD Color' 'on' for the HDMI port 1, from the picture 'Expert Settings' page. Once this is done, with this TV you don't need to turn on any special mode to get HDR to work, since when the TV detect and HDR signal, a popup is going to appear telling you that an HDR video is playing. It must not be confuse with 'HDR+ Mode' from the 'Special Viewing Mode', which is a 'Fake HDR' that will transform normal content to make it look like HDR.
12
I bought UN55KU6300FXZA from Bestbuy on prime day price match guarantee. We watched couple of movies we did like the picture quality. But having difficulty to watch sports. Whenever we try to watch sports we feel sports picture quality is not good. It's so blurry when we try to watch sports. We have X1 box from Comcast Xfinity. I heard Comcast is coming up with 4k picture quality in couple of months. Since we watch lot of sports channels, we are still debating whether we should return this TV or keep it . Any recommendation for nice TV to watch sports and movies? Okay with LG, Samsung and Vizio.
First you could try our settings here. Try with 'Auto Motions Plus' set at Off. If still not good, you can try to set it at custom and set low value like 3 or 4 for and 'Judder Reduction' and leaving 'LED Clear Motion' off.

If you are still not satisfied and want to change for another TV, the Vizio M series 2016 as an edge for sport and image quality for movie is also very good. It is a little bit less good at handling lower resolution content, but if you upgrade for an 4k cable box, you should be good.

11
Your Samsung KU6300 review was just what I've been waiting for. Looks like in choosing between last year's Samsung 40" J6300 and the new KU6300 - last year's model might be better. Although it's not 4k - when sitting further than 6' away - does that make ANY difference at all? At what distance will 4K begin to positively impact colours or picture sharpness? TV is mainly for "living room" use (in a bedroom), movies streaming, no gaming but unfortunately - viewed from a slight angle.
For a 40" TV you may just be able to see the benefits of 4K from a distance of 6'. For that size, it is generally noticeable from a distance of about 5'. The viewing angles of both TVs are similar, go with the J6300.
11
I just purchased the KU6300 from Best Buy and game mode does not work in 1080p at 60 Hz. It is only available in 1080i at 30 Hz. Your review states that game mode is available at 1080p, but this does not seem to be the case. Could I be doing something wrong?
Game mode works in 1080p@60. If you are using a PC, make sure you tag the input on the TV to Blu-ray to disable PC mode. Otherwise, PC mode is automatically engaged on 60Hz signals.
10
Amazon.com currently has deals for prime day on the Samsung UN55KU6300 and the UN55KU6600. Are they the same except for the curve?
Yes, the Samsung UN55KU6600 is a curved UN55KU6300. The picture quality should be in the same ballpark, and since the curve is not really worth it, get the cheaper UN55KU6300 instead.
10
I live in Mexico and there's a TV for sale in a mexican market website model UN40KU6000FXZX, is it the same model as the KU6300, I've read in a website that is the same model number in the UK, but the letters UE change to UN but the model number 6000 is the same in Mexico. Also, the specifications are the same. I'm interested in buying this model but I want to know if it's the same here in Mexico (KU6000) as in the US (KU6300).
The UN40KU6000FXZX in Mexico appears to be the same as the UN40KU6300 in the US.
9
I bought the 40" KU6300 today after finding this site yesterday. I love this as a monitor. When I try to enable UHD color for the HDMI to the PC it doesn't appear to see the PC input anymore. Works great with it turned off but I was wondering what's happening there and am I not getting the best picture as a monitor then?
It may be an issue with your HDMI cable. Due to the high bandwidth of a 4k 60Hz signal, you need a full speed cable for the UHD color information. Cables that are very long (>20') may also have an issue with the bandwidth requirements. UHD color can increase the definition of text.
9
I'm stuck deciding between the Samsung KU6300 and LG Electronics 65UH6150. Which one has better features, app options, and better picture quality?
We haven't reviewed the UH6150, but expect it to be very similar to the UH6100. The KU6300 has better picture quality in a dark room, and from directly in front, however it degrades rapidly when viewed at an angle. The UH6150 has worse picture quality from in front but is retained better at an angle. Unless you have wide seating, go with the Samsung KU6300.
9
I have the Samsung UN40KU6300FXZA try to enable HDMI UHD Color on all 3 HDMI port. I am use PC on HDMI 1, PS4 Pro on HDMI 2 and XBOX One S on HDMI 3. HDMI UHD Color is just enable in port 1. Why can i not enable the other 2 ports?
Only the HDMI port 1 is able to support the full HDMI 2.0 bandwidth on this TV unfortunately. The 2 other port are not full bandwidth compliant. Maybe this decision was made to be able to cut the price of the TV, since the more expensive KS Series support the full bandwidth on all HDMI port.
7
I purchased this 40 inch version of this TV at a local store for a very reasonable price, and I am using it as a 4K PC monitor based your input lag data. I have noticed that this monitor produces some very powerful color levels/brightness when things like lens flare and ambient occlusion are switched on in some games. In fact, this monitor greatly outperforms my LG 34" Ultrawide (non 4K model) in this respect. Is this the result of some effect from the HDR support, or is it just a property of a VA panel? I know you stated that HDR support does nothing on this set, but it seems like brightness, contrast, and color intensity are stronger on this TV than other LCDs I have used.
Basically, this is not a result of the HDR support but due to good SDR support. The VA panel results in a contrast ratio which is quite a lot better than any IPS panel we have seen. Although the KU6300 is far off the HDR standard of 1000 nits, if you look at our comparison table of peak brightness here you can see it is better than the majority of TVs. This increased brightness helps to define highlights and makes the colors appear more intense even though it only supports a SDR color gamut.
7
After I sent my J6300 into geek squad to fix the backlight bleed, it came back to Best Buy with the screen cracked due to mishandling from transportation. As a result, Best Buy junked the old model and graciously swapped it for the KU6300 for the same price as the J6300. That being said, I was sceptical after reading your review and thought I was getting a weaker TV. However, I actually really like this model a lot. I know you've mentioned the judder issue in your review, but I'm not having that problem whatsoever (especially with blu rays). Plus, both the color and blacks are great, albeit the color could be slightly adjusted. Nonetheless, so far I've had great movie watching experiences with this TV and find it rather difficult to believe that this particular model received a less than stellar score in movie usage. Could it be your team received a crappier set?
We buy all of our TVs through retail channels. This means we expect the reviews to be representative of the typical TV you might buy in a store. There is always some variance in the quality of each TV, however this mostly affects the uniformity and white/color balance. The rating of the KU6300 is quite good, especially considering the price which does not affect the scoring. Most of what brought the KU6300 down was the lack of features available on more expensive TVs, such as local dimming. This does help to improve the movie watching experience and so affects the score. Judder does not depend on the individual TV but is not noticeable for most people and so only makes up <5% of the 'Movies & TV' score.
7
For 4k TVs that do not have the wide color gamut, if all else is very similar, is HDR even recommended as a consideration given the lower price of a non-HDR 4k or even a 1080 TV? For the same TVs, is there any way future firmware updates could improve the HDR picture quality of a low color gamut TV? I don't want to abandon the idea of HDR on a set that does not have a wide color gamut if this is something that can be improved upon sometime in the future. I also don't want to pay extra for HDR-capability on a low color gamut set if its not useful.
Unfortunately, wide color gamut cannot be upgraded via an firmware update, since it is related to the construction of the TV panel itself. For the moment, HDR is still in it infancy and "good HDR performance" is really a high end TV feature. For mid range and budget TVs, HDR is more marketing than a real upgrade in performance. You may have more for your money with a very good SDR TV than an bad HDR TV.
6
According to Samsungs website, this TV has local dimming, it is something they could of added with a firmware update?
No, local dimming is a hardware option, so it can't be added via software update.
6
I just got the KU6300. It looks great, and followed your recommended calibration settings. However, I cannot get rid of some type of auto-dimming. When the scene goes primarily dark, white text dims quite a bit too. It's pretty obvious if you have some video playing while the TV's menu (white text) is open. I've disabled energy settings, dynamic contrast, and other things, but it persists. I have read elsewhere on the internet that you can disable auto-dimming ONLY in the service menu. On your calibration page Q&A, you talk about entering a service menu. So, I suppose I have 2 questions: 1. Is there indeed, a way to turn that off, via the service menu? 2. Since a normal samsung remote is required to get to it, what remote did you use? What should I buy so I can access the menu? If I can fix this with a service menu tweak, great. If not, I might need to return this TV. It's really annoying to me. Thanks.

There are two ways to disable this. The first is with the picture mode. 'Movie' reduces the effect and 'PC' removes it completely (but reduces calibration options and disables some settings).

The other option is a bit more difficult. Increasing the brightness (to around 55) and then counteracting this increase with the 2 point offset will disable this dimming. This requires recalibrating the TV with the higher brightness and 2 point red, green and blue offset.

On the KU6300 the option is no longer in the service menu.

6
What would you recommend from KU6300, KU6400 and JU7000 for a PC monitor replacement / gaming?
The KU6400 is the UK equivalent of the KU7000 reviewed on our website, and it's likely the JU7000 is very similar to the JU7100 we reviewed. They are all very good as a PC monitor and for gaming, but the KU6300 has the slight edge. It has good motion blur, and the lowest input lag of the 3 TVs.
6
Hi, I plan to connect my PC to a TV and mostly use it for gaming. I have a radeon R9 Fury X graphics card, as its not enough to run say the witcher 3 at 4k with high settings, but it can run the game well at 1440p. Can I set my game to 1440p and will the TV upscale to 4k? If so, should I set my desktop resolution to 1440p as well, or is running the game at 1440p in fullscreen mode enough? I really curious about how exactly does the upscaling works. Also, if I play a 1080p video on VLC, will the TV upscaler help me or should I mess with the settings somewhere ? I'm looking for a TV with good upscaling and I dont want to spend more than 700 dollars. I really appreciate your great reviews and looking forward to that Hisense TV review you guys have planned! Keep up the amazing work!
1440p works on that TV, and yes it upscales to 4k (every input always get upscaled) but keep in mind upscaling doesn't improve the picture in general. Whether the TV upscales 1080p better than VLC is a bit of a personal preference, especially since with plugins VLC can be tweaked a lot.
6
I see Best Buy has that black Friday deal you mention above for the 55 inch in model UN55KU6270FXZA. Can you explain the difference between that and the other 55 inch UN55KU6290FXZA? I'm always hesitant to purchase "exclusive black Friday" deals with the fear that something was compromised. And I also see that Samsung is selling the 6300 60" for $699 on their site. Can you tell me the difference between these three in quality? Thanks.
We expect very similar picture quality from these 3 TVs, but the KU6270 and KU6290 lack bluetooth and come with a standard remote instead of the smart remote of the KU6300. Models often have slight variances in model numbers to prevent price matching between retailers.
5
What is the input lag when in 4:4:4 mode with 4k at 60hz, while in game mode (if possible)?
Game mode doesn't support 4:4:4, only PC mode does. The input lag at 4k @ 60Hz @ 4:4:4 is 36.7ms
5
Do you guys plan to review those Hisense 4K TVs? Specifically the Hisense 43H7C. Interested to how that compares to this Samsung KU6300. You guys are only ones that break down everything, so if it has good motion processing unlike the KU6300 for movies, I'd be interested to see your take on this on other aspects and how it handles.
Unfortunately we don't have plans to review that model at the moment, but may do so if there is sufficient demand. We do plan to review the H8C within the next month, which may give some idea of how the H7C may perform.
5
Hi there, I'm just a tad confused about HDR. Is this or is this not a good HDR TV for gaming consoles? You mention KU6300 lack wide color gamut but then say it's suitable. Thanks.
The KU6300 is suitable for HDR gaming because it has a good input lag under this specific condition, compare to other HDR TVs that have a much more important input lag with HDR. That said, you won't have all the benefit of the HDR compare to, let say the KS8000, that have a wide color gamut. You will still have some benefits, but not just the full range of colors.
5
I'm planning to buy a 4k TV to take advantage of the Xbox One S. I was planning on getting the Sony X800D but it is a bit expensive. Is it worth waiting to get the Sony or will I be OK with the samsung KU6300 for my bedroom?
You will get better color reproduction with the 43" Sony X800D since it has a wide color gamut, an option that the Samsung KU6300 don't have. Beside that, both TV are very close in term of other performance. If you can wait until you can afford it, You should not be disappointed.

It is important to note here that the 49" version of the Sony X800D is an IPS TV with a lower contrast ratio that the Samsung KU6300. If you were looking for the 49" X800D, then you should go with the Samsung KU6300, even if it does not have the Wide color gamut feature, since it has a VA panel with a much higher contrast ratio, it will have a much better picture quality in a dark environment like a bedroom.

5
Hi, do you know if this set can display 2560x1440 QHD resolution from a PC? If so how well does it handle the scaling, and what is the input lag in this mode? Does it require setting up custom resolutions in the GPU driver? Ideally I would want to use 4k when on the desktop but drop down to QHD @ 60Hz when gaming so my GPU can keep up. I have a GTX 1070 which is fine for 1440p but too slow for native 4k. Thanks!
Yes you can (without custom resolution), but it is a bit fuzzy since the ratio doesn't convert as well as 1080p on a 4k screen. We aren't able to measure input lag in that resolution currently unfortunately.
5
What are your thoughts on build quality? There are user reviews on Amazon and Target that state the screen breaks easily (hand pressure)?
We haven't noticed any issues for build quality of the KU6300, and we move our TVs around a lot. For the average person who leaves their TV in one place there should be no issues.
5
Hi, I notice that the TV has the 10 bit panel but without Wide Color Gamut. Can you elaborate what impact this has in terms of performance? Thanks!
The lack of wide color gamut will only impact HDR content, making it a bit less colorful (color less saturated) and more like traditional content. But if you watch SDR content (normal movies or TV show) the lack of wide color gamut feature will not change nothing to the picture quality, since SDR content does not make use of the wider color gamut.
4
Your review of the KU6300 shows that it doesn’t handle judder well (“can't remove judder from any movie source”). In your “settings” for this set you seem to be saying judder can indeed be controlled through Auto Motion Plus (best set to low values). Furthermore, does this TV have a custom judder setting like other Samsung's?
There is a custom "Auto Motion Plus" setting which allows changing the "Judder Reduction" and "LED Clear Motion" values. Regardless of the values set, judder cannot be completely removed.
4
I purchased the Sony 810 and found out the hard way that Amazon video does not broadcast in 5.1. It only will do stereo. I'm very tempted to buy the Samsung 6300(2016) 55 inch. My question is, does Amazon video broadcast in 5.1 on it? Netflix was fine.

That's correct, the Sony TVs do not support 5.1 audio on Amazon video. You can see here a list of devices and manufacturers for what is supported, and Samsung supports 5.1. Netflix 5.1 is also supported on the KU6300.

Update 11/15/2016: Sony TVs are now updated to support 5.1 from Amazon Video.

4
I suffer from what seems to me as a Hz problem. Often, irrespective of the content (1080p or 4k) when I set auto motion plus to maximum, I notice patches of frames or misplaced frames during fast moving content. During still camera or slow camera pans, I enjoy the continuous motion and is very life like. But as I mentioned earlier, during fast action sequences this thing struggles to put the frames together and the resulting picture is patchy. Specifically, when I try to play this 'judder test video' from Youtube, I notice patches everywhere. Is this because of the 60z panel and Samsung trying to upscale it to 120 or just my TV? I really enjoy the soap opera effect and I prefer watching content that way. But this TV is killing the experience for me introducing patches and misplaced frames.
Soap opera effect will always introduce some interpolation artifacts. Diminishing it will reduce the interpolation artifacts. In the end, try to find a setting that is best for you.
4
Hi, I have three flat screens in mind, which one is best for general viewing, my choices are: the Vizio D65U-D2, the Samsung UN65KU6300 and the SONY XBR65X750D.
Depending of your room set-up and lightning the best TV will not be the same. If you will sit most of the time in front of the TV and the room will be relatively dark during your TV viewing time, go with the Samsung KU6300. If you will not sit in front all the time and your room will be well lit, then go with the Sony X750D.
4
I'm thinking of buying a Samsung 50KU6300 on Black Friday but noticed that it has a smart remote instead of a standard remote. What are the pro's and con's with the smart remote if I use the TV 95% of the time just for watching regular TV?
In general, the disadvantage of a smart remote is that it may not be as intuitive to use. This isn't the case of the KU6300 smart remote which is quite minimal and provides easy access to all of the functions. If you wish to enter channel numbers it is a bit more difficult as you need to use an on-screen keypad. If you wish to use a more traditional remote you can also use any universal remote. Overall the smart remote is an improvement, even for watching regular TV. It connects via Bluetooth for most functions so it doesn't always need to be pointed at the TV.
3
Wondering if the KU6300 65" will be an overall good TV for my apartment. Will be watching Blu-Rays and playing video games in the dark primarily, but sometimes during the day. There won't be any windows pointed directly at the TV either, only one from the side. Just looking for the best 65" TV for around $1500.
The KU6300 is a good pick, turn on Game Mode from the 'Special viewing modes' setting to reduce input lag. The video quality is good for movies, and the brightness level should have no issue with the side window.
3
After going back and forth between this review and the review of the Vizio 4K D series, I seem to be at a bit of quandary with the HDR aspect of both sets. As you stated in the introduction of your review, "It supports an HDR input, but it doesn't have the capabilities to display a more colorful picture." To me, this means it'll play HDR content and display bright whites and deep blacks fine but won't benefit from the color aspect like a good HDR TV would due to its lack of WCG and 8 bit panel. However, you state in the HDR format portion of the review that it supports HDR 10 but won't benefit from it. Now, if you were to juxtapose the KU6300 against the Vizio 4k D series, which TV would benefit more with HDR content?
For HDR content the TVs are very similar, but the KU6300 is a slightly better choice. Both TVs don't support a wide color gamut, but the KU6300 does get slightly more bright. The Vizio D 4k doesn't support any HDR formats, unlike the KU6300 which supports HDR10 content. The picture quality of both TVs are also similar, however the Vizio D 4k's picture quality degrades slightly more rapidly when viewed at an angle.
3
My parents live in rural area and have 6 Meg Internet and DirecTV Genie receiver. They also have a Panasonic Blu-ray Player. They use this for Amazon and Netflix. Currently they have a Panasonic 58 inch plasma. Looking to buy them TV for retirement celebration. Want to get them a Samsung television from Costco as I think Vizio's Smartcast would be confusing and their internet speed isn't great. My question is: For such a simple setup... Would you recommend the KS8000 or the KU6300? Exactly how bad is the motion blur on the KU6300? I don't want to overspend if we don't have to. But I do want to get them something good. We plan to mount it on the wall. Thanks!
Go with the KU6300, for this simple setup it is a better choice and a lot less expensive. The Motion blur is good on the KU6300 and in fact almost the same as the KS8000.
3
I'm having trouble deciding to either get the KU6300 or the KU7000. Will gaming in HDR & movies look better on the KU7000 because of the wide color gamut? I'm wondering which TV has a better picture quality & will games & movies look better on the 6300 or the 7000?
The KU6300 and the KU7000 are almost the same TV, but with the addition of the wide color gamut on the KU7000. As you are watching HDR content you may notice the increased saturation, but for most people this isn't worth the extra money.
3
Great site. I am sure you have helped numerous people with TV purchases. You are helping me make up my mind for my next set. Anyways, I purchased a 4K Samsung 40" KU6300. When I am in Amazon instant video app, watching Interstellar (not 4K UHD), the picture seems to be stretched, up and down, about 10% give or take. Just enough to notice something is not correct, visually. Basically it is not to scale as it is on my 2 other Samsung TV's (not 4k). Yes, I have checked to make sure all the aspect ratios and picture size settings are correct. Have you ever run into this or heard of this? Can it be a faulty TV? I have noticed it on one other movie through Amazon Prime, but not all movies, which is weird. Thanks for the great reviews. Any help or info is appreciated.
We have heard about this on various devices, and it seems to be a bug with the Amazon app. Unfortunately we don't know if or when this will be fixed. One workaround is to use an external streaming box, but this is obviously far from an ideal option.
3
I just bought a 6290 and it comes with a smart remote and appears to have a full browser (some sites report it has a reduced function version). However, while the Samsung web site says bluetooth is supported on the 6290, you are correct - it's not. I confirmed this with Samsung tech support yesterday and they'll be updating the site. Best Buy swapped the unit for a 6300 because of the spec error.
Thank you for this extra information.
3
Hisense 55" H8C vs Samsung 55" KU6300 for gaming and TV be that the Hisense is $500 and the Samsung is $700.
Go with the Samsung KU6300. The viewing angle and input lag are better on the KU6300. The smart interface is also much more easy to use.
3
Why wouldn't game mode work with 4:4:4 chroma? What is Samsung's reasoning behind this? Does going to a worse chroma decrease input lag? Could they somehow make it work?
It may have to do something with the extra image processing needed to display the more precise image versus the less demanding resolution without 4:4:4. This extra processing add some delay and thus more input lag. Unfortunately we can't really know if they can fix this issue with a firmware update.
3
First I would say you have the best review website so far.
Second, I was in the market for a low budget TV for my PS4 Pro for my workroom and bought the Samsung UE43KU6000 (43KU6300). It's a very recent production, I think. The panel info was: 43B6AU0VK. This is a Beijing Optoelectronics. They make AD-PLS panels. The benefits from your review of the good contrast, black and latency from your review are not valid for this panel. It's good to know for the readers of the review. I swapped the TV and now I have a 43L6AU0VK, which is an AU Optronics VA panel. It looks much much better! The IPS was production date: XX-01-2017. The VA was production date: XX-11-2016 and came directly from the warehouse (old stock?). I think all the new TV's are IPS panels. I've contacted some other guys that bought the TV around the same time and all have an IPS panel.
That's very interesting, thank you for pointing this out. We've received a few reports of KU6000 or KU6300 units with IPS panels also manufactured by BOE, though none in the US as of yet. It's pretty dishonest of Samsung to have both VA and IPS panels for the same model and size, they perform very differently.
2
I see Costco has the UN70KU630DFXZA on sale for $1650. How is this different from the one reviewed? The specs say the VESA connector is TBD. Does it have one, and can it be wall mounted with a standard kit?
The KU630D is likely to be very similar to the KU6300. It also likely has a VESA 400x400 mount but we can't find any reliable information on that at the moment.
2
I just got the TV and love it. Is 4K upscaling ON by default?? I cannot find anywhere in the settings where to turn ON/OFF 4k upscaling.
There is no option to turn on or off upscaling. The TV has a 4k resolution, so any time there is a source with lower resolution it will be scaled to fit the KU6300's screen.
2
Is the input lag the same on the 6600 model with game mode on?
Yes it should be the same.
2
Hi, what are the differences between this model and EU KU6000? Will there be a difference in image quality?
There is no difference. The KU6000 is the European version of this TV and you can expect the same performance.
2
This answer is at odds with Samsung's website, that describes the KU6300 as have "UHD dimming". Or is this different than the local dimming you are discussing here?
UHD dimming is different to local dimming, and can be slightly misleading. UHD dimming adjusts the contrast of different areas of the picture to try to enhance highlights. As we aim for a true-to-source image, we try to disable this type of processing. Local dimming adjusts the backlight in different areas to produce an image closer to the source.
2
I am looking for a decent HDTV as a Christmas gift and this one seems pretty good for price/performance ratio. I just don't understand why such a critical item like movies have judder? Does Samsung think it is not important or negligible? Does this HDTV have judder for all sources?
Most people don't notice it, so it may not be seen as a priority. On the KU6300 movies played from all sources have 3:2 pulldown judder.
2
Hi, I was just wondering if the KU6300 Could potentially receive a software update that would widen its color gamut and would that actually improve HDR10 functionality? How would I know? Also, how much better is the Sony X800D in regard to HDR quality. I'm wondering if I should keep my Samsung or return it and get the Sony. Thanks.

The wide color gamut feature can't be added via firmware update, since this is a hardware related feature. The only big difference that you will notice is the color that are going to be more saturated because of the wide color gamut and there should also be less banding since it has a better 10 bit panel.

Note that the 49" version of the Sony X800D is using an IPS panel that has a lower contrast ratio that the VA panel use in the 43" version. In that case, we would recommend the Samsung KU6300 over the 49" Sony X800D.

2
Does this TV support the latest WiFi standard, 802.11ac?
Yes it does.
1
Can you go over the benefits of HDR when WCG, 10bit and Brightness is missing?
Basically, there will be no benefits to the picture quality over a SDR 4k signal as it will still display the image in the Rec 709 color space, in 8 bit, and with normal luminosity. The UHD Blu-ray player will convert the HDR gamma curve to a SDR gamma curve.
1
I'm torn between buying a newer "K" series set, and last years "J" series sets which are being heavily discounted everywhere right now. The price delta is HUGE, and I was wondering if HDR and few other picture refinements are really worth the $1500-$2000 difference in price. It's a tough call. I always want the latest and greatest technology available, but is there really that big a difference in overall picture quality between the two series?(JS9500 vs. KS9500)
The biggest differences between the JS9500 and the KS9500 are the maximum brightness which is higher on the KS and the different backlights. The JS9500 has a full array backlight, and the KS9500 is edge lit. This results in better local dimming for the JS9500. The other differences are very minor, and it probably isn't worth the big price difference for you.
1
I am looking for a 70" TV in the 1,500 - 2,000 price range. How does the LG 70UH6350, compare to the Samsung UN70KU630DFXZA or the Vizio M70-D3 or E70u-D3 sold at Costco?
We haven't reviewed the UH6350 and so can't comment on it. The UN70KU630DFXZA is the warehouse version of the KU6300 and should offer the same picture quality. The Vizio M Series is an overall improvement on the E Series 4k. For watching lower quality content such as cable, the upscaling of the KU6300 is better. Also if you use it as a PC monitor, the KU630D displays text more clearly. For other uses go with the Vizio M Series 2016 as it offers slightly better picture quality, especially in a dark room due to the local dimming feature.
1
I JUST purchased the UN55KU630 Samsung 55" TV. The price was affordable at about $875 which included an extended 3 year warranty at Costco. However, after reading so much on here, I'm wondering, did I make the best decision. I watch A lot of TV, and I'm wondering if this new TV will be better quality than the one I had previously which is a Samsung model LN46C63OK1FXZA. I'm just curious, will the new one, be a much better TV. This one, has finally seen the end of good quality. Also, I was told the new TV I just purchased has a refresh rate of 120. The info I read says no.
The Samsung KU6300 (or KU630D from Costco) is a good TV and one that is recommended in our $750 to $1,000 category. It will have many new features that were not available before, so it is a bit hard to compare with your older TV.

Often the refresh rate that is advertised is more a marketing gimmick than what it is really (see our article about it here. When we do our review, we test to determine the real refresh rate. That why in that case, Samsung advertise it as a 120Hz TV when in fact is a 60Hz TV. But you should not be worry about this, unless you really want to have the 'Soap Opera Effect'.

1
I notice in the 'In the box' picture there is "Audio Out Adapter" does that mean I use that to hook up to my wireless headphone transmitter??
Thank you for pointing this out, it is an error in the text and has been updated. Depending on how your wireless headphones work, it is possible to either connect them via Bluetooth (built into the TV), or with the optical out connection. The RCA adapter in the box is just for audio input into the TV, as the TV does not support analog audio output.
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I looking for a TV around the $500 to $1000 range, I will mostly be interested in watching/streaming movies. Also would like to have a good sound system included. Samsung KU6300 & Sony 55X700D are a few options in that list. Can you please recommend best option among these two or you can also recommend if any other model is good. Also I would be keeping this in a living room and viewing at a distance of 10 to 12 feet. Would you recommend 50 inch or 55 inch? Thanks in advance.
At a distance of 10-12' you generally want to go for the largest size you are comfortable with, to improve your field of view and the resulting picture quality. We don't recommend choosing a TV for the sound system, as they are generally all much worse than any external speakers or soundbar. If you care about sound, it is better to reduce your TV budget and spend the excess on a cheap soundbar. The 55" Sony X700D sounds like the best choice for your situation. The native contrast ratio isn't as good as the Samsung KU6300, but the whole screen gets bright to combat glare and reflections in a brighter living room. The picture quality also remains good when viewed at a wide angle.
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Looking to pick up a new TV as my current Vizio that's a few years old is having a backlight issue causing the screen to be divided in thirds horizontally that are darker on top and bottom than in the middle. Very noticeable when watching sports or on a dark or gray screen. I have come to a decision that has to be made between the Samsung KU6300 and the Hisense H8. The 6300 will be on sale for $398 on black Friday while the H8 is on sale right now for $449. I have read the reviews for each TV and they seem pretty comparable but which do you recommend? I went to the local Best Buy store to view the TV's and it appeared that the H8 was brighter than the Samsung but the that's what the sales guy was saying so I can't decide if that was actually true or if it was the power of suggestion. The TV will be wall mounted and 13-15 feet away and is used for movies, Dish, and as a monitor for my gaming computer. Which would you recommend in a head-to-head comparison given this information? Thanks in advance!
Go with the Samsung KU6300. The viewing angle is better than what you'll get on the Hisense and at a distance, it can prove to be an important factor is you're not watching the TV directly in front. Also, the input lag is a bit better for the Samsung. Since you'll be at a reasonable distance from the TV, if you were ready to spend a bit more for the Hisense, maybe you could get a bit bigger size on the KU6300 for the same price as the Hisense.
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What's a better buy, the TCL 55US5800 or Samsung UN55KU6300? Does TCL 55US5800 use a VA panel, and if so do you know the contrast ratio?
The 55US5800 is currently being reviewed, and will be posted this week. It uses a VA panel and the contrast ratio is 3504:1. The KU6300 is a much better TV.
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What was the reason for that big dip in gamma around 80-90 IRE in the precalibration measurment? Was an energy saving setting on by default in movie mode?
We disable all energy saving features before performing the pre calibration measurement. This is just due to the way the TV is calibrated initially. Other Samsung TVs have similar results, such as the KS8500 which has a very similar pre calibration white balance and gamma curve. It is also seen to a lesser extent in the KS8000 and KS9500 prior to calibration.
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First off, I wanted to thank you for all the time and research you provide. I’ve turned everyone onto your reviews, as it’s super helpful! My 46” LG has left me and died right at 10yrs, so I’m looking for a replacement TV. My viewing isn’t crazy, I rely heavily on cable TV and the occasional Roku stick binge. My living room isn’t too bright and my TV is about 6 feet away from couch, no angle viewing and I like to have the lights on when viewing TV. Should I get a top model 1080 or a 4K? If 1080p, what model and size would you recommend? If 4k, would you recommend the Samsung KU6300 @ 50” or the Sony X800D at 49”. I do like a more realistic viewing, so is the Sony worth $250 more? Also, should I be aware of any panel lotteries on these two, as I’m a little nervous because some Amazon reviews were very mixed on the Samsung KU6300 & the price keeps dropping. Should I buy a certain “letter” version? Also, open to another 4k option under $850 between 48” – 55”, as Best Buy recommended the Insignia/Roku 4k model 50DR710NA17 @ $450, but your reviews aren’t the best for that model. Goal is a crisp view, viewed comfortably from my couch. Thank you for your time in advance.
Go with a 4k TV if you want the sharpest and crispest image quality. In the 4k TVs, for your use and price range, both the Sony X800D and Samsung KU6300 are good choice. If you want the superior TV (by just a bit) go with the Sony 49" X800D. If you want to save a bit of money go with the 50" Samsung KU6300 or if you want to spend the same amount but have a bigger TV, then go with the Samsung 55" KU6300.
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