Samsung QN800A 8k QLED TV Review

Tested using Methodology v1.6
Reviewed Apr 19, 2021 at 11:54 am
Samsung QN800A 8k QLED Picture
8.0
Mixed Usage
Value for price beaten by
: LG BX OLED
7.4
Movies
Value for price beaten by
: LG BX OLED
8.4
TV Shows
Value for price beaten by
: Samsung QN90A QLED
8.4
Sports
Value for price beaten by
: LG C1 OLED
8.3
Video Games
Value for price beaten by
: LG BX OLED
7.5
HDR Movies
Value for price beaten by
: Sony A8H OLED
8.3
HDR Gaming
Value for price beaten by
: LG G1 OLED
8.7
PC Monitor
Value for price beaten by
: LG C1 OLED
Type LED
Sub-Type
VA
Resolution 8k

The Samsung QN800A 8k QLED is a great TV overall. It's one of two 8k TVs from Samsung's 2021 Neo QLED lineup, and it features Mini LED backlighting. Despite its great overall performance, it's disappointing considering its premium lineup placement and price tag. Even though it has Mini LED backlighting with over 1300 dimming zones, its local dimming feature performs quite poorly. It helps improve the low contrast ratio but, at the same time, causes intense blooming around bright objects. This TV isn't the best choice for dark room viewing, but if you want to use it in a well-lit environment, it has high peak brightness and fantastic reflection handling. Gamers should appreciate its HDMI 2.1 and variable refresh rate (VRR) support, low input lag, and excellent response time, but some people may still notice some dark smearing with fast-moving content.

Our Verdict

8.0 Mixed Usage

The Samsung QN800A is great for most uses. It's an excellent choice for use in bright rooms, like when you're watching shows or sports, because it gets bright enough to combat glare and has fantastic reflection handling. It has great gaming features like VRR technology and HDMI 2.1 support. It also has very low input lag and an excellent response time. However, it struggles in dark rooms due to its low contrast ratio and poor local dimming feature that causes blooming around bright objects. It also doesn't display a wide color gamut for HDR content, but has fantastic brightness.

Pros
  • Fantastic peak brightness in SDR and HDR.
  • HDMI 2.1 support on all four ports.
  • High 8k resolution helps deliver clear text and crisp images.
Cons
  • Local dimming feature causes blooming around bright objects.
  • Contrast ratio lower than most VA panel TVs.
  • Can't display a wide color gamut.
7.4 Movies

The Samsung QN800A is good for watching movies. It has a VA panel with a decent contrast ratio that's lower than most VA panel TVs, causing blacks to look gray. Its full-array local dimming feature does a good job at improving the contrast for deep blacks, but it causes a ton of blooming. Luckily, the TV upscales lower-resolution content, like from Blu-rays, without many issues.

Pros
  • Upscales lower-resolution content well.
  • Automatically removes 24p judder from any source.
Cons
  • Local dimming feature causes blooming around bright objects.
  • Contrast ratio lower than most VA panel TVs.
8.4 TV Shows

The Samsung QN800A is impressive for watching TV shows. It gets bright enough to fight glare and has fantastic reflection handling, so visibility shouldn't be an issue in well-lit rooms. It doesn't have issues upscaling lower-resolution content like from cable boxes. Sadly, its viewing angles are a bit narrow, so you lose image accuracy when viewing at a wide angle.

Pros
  • Upscales lower-resolution content well.
  • Fantastic peak brightness in SDR and HDR.
  • Remarkable reflection handling.
Cons
  • Somewhat narrow viewing angles.
  • Rainbow-like effect with reflections.
8.4 Sports

The Samsung QN800A is great for watching sports. Visibility shouldn't be an issue in well-lit rooms because of its fantastic reflection handling and high peak brightness. It has an excellent response time, but you may notice some motion blur with fast-moving sports. It has only okay viewing angles, so it's not suggested for really wide seating arrangements as you lose image accuracy.

Pros
  • Fantastic peak brightness in SDR and HDR.
  • Remarkable reflection handling.
  • Motion looks smooth for the most part.
Cons
  • Somewhat narrow viewing angles.
  • Rainbow-like effect with reflections.
8.3 Video Games

The Samsung QN800A is great for gaming. It has many of the popular gaming features like HDMI 2.1 and VRR support. Its input lag is incredibly low, and it has an excellent response time. Sadly, it's not the best for dark room gaming due to its lower contrast ratio and its bad 'Game Mode' local dimming feature that causes intense blooming around bright objects.

Pros
  • Motion looks smooth for the most part.
  • HDMI 2.1 support on all four ports.
  • FreeSync VRR support.
Cons
  • Local dimming feature causes blooming around bright objects.
  • Contrast ratio lower than most VA panel TVs.
7.5 HDR Movies

The Samsung QN800A is good for watching HDR movies. It has fantastic HDR brightness, so highlights pop the way the creator intended, but sadly, it doesn't display a wide color gamut. It's not a good choice for dark room viewing because it has a low native contrast ratio, and its full-array local dimming feature is poor as there's too much blooming around bright objects.

Pros
  • Upscales lower-resolution content well.
  • Fantastic peak brightness in SDR and HDR.
Cons
  • Local dimming feature causes blooming around bright objects.
  • Contrast ratio lower than most VA panel TVs.
  • Can't display a wide color gamut.
8.3 HDR Gaming

The Samsung QN800A is great for HDR gaming. It delivers a responsive gaming experience thanks to its 120Hz panel, FreeSync support, low input lag, and an excellent response time. It has fantastic HDR peak brightness, but it doesn't display a wide color gamut. Also, it has a poor local dimming feature and combined with its low contrast ratio, doesn't deliver a good dark room experience.

Pros
  • Upscales lower-resolution content well.
  • HDMI 2.1 support on all four ports.
  • FreeSync VRR support.
Cons
  • Local dimming feature causes blooming around bright objects.
  • Contrast ratio lower than most VA panel TVs.
  • Can't display a wide color gamut.
8.7 PC Monitor

The Samsung QN800A is an excellent choice to use as a PC monitor. It has a high 8k resolution that helps deliver clear text, and it displays proper chroma 4:4:4. It performs best when used in a well-lit room because it has fantastic reflection handling and high peak brightness. However, it has somewhat narrow viewing angles, so the image looks inaccurate at the sides if you sit too close.

Pros
  • Fantastic peak brightness in SDR and HDR.
  • Remarkable reflection handling.
  • Motion looks smooth for the most part.
  • High 8k resolution helps deliver clear text and crisp images.
Cons
  • Somewhat narrow viewing angles.
  • Rainbow-like effect with reflections.
  • 8.0 Mixed Usage
  • 7.4 Movies
  • 8.4 TV Shows
  • 8.4 Sports
  • 8.3 Video Games
  • 7.5 HDR Movies
  • 8.3 HDR Gaming
  • 8.7 PC Monitor
  1. Updated Aug 17, 2021: There was a mistake in our response time results. We've corrected the response time charts and results, and updated the stutter score as well.
  2. Updated Jul 29, 2021: We retested the local dimming, peak brightness, color gamut, and color volume with the latest firmware (v.1511).
  3. Updated Apr 19, 2021: Review published.
  4. Updated Apr 14, 2021: Early access published.

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Test Results

perceptual testing image
Market Context
Market Context
Market Context

The Samsung QN800A is one of two 8k TVs in Samsung's flagship Neo QLED lineup. It sits below the Samsung QN900A 8k QLED and above the Samsung QN90A QLED in North America. It replaces the Samsung Q800T QLED from 2020. There aren't many 8k TVs available, but we expect its main competitors to be the Sony Z9J, TCL 6 Series 2021, and the LG QNED99.

Design
Design
Style
Curved No

The Samsung QN800A is slightly redesigned from 2020's Samsung Q800T QLED, and it looks very premium. It comes with Samsung's One Connect box that houses all the inputs, so there's only one wire going to the TV. You can even attach the box to the stand or the back panel. There are speakers on the back panel, which some people may not like, but you won't notice it when watching TV anyways.

Design
Stand

The center-mounted stand is similar to the stands on past Samsung TVs, except the TV sits a bit lower to the surface. It looks premium and supports the screen very well without much wobble.

Footprint of the 65" TV: 14.2" x 11.3". This measurement was taken without the One Connect box attached; with it, it has a depth of 12.9".

Design
Back
Wall Mount VESA 400x300

The back of the Samsung QN800A is a bit redesigned, and it's made from a mix of metal and plastic. There are speakers on either side, which is something we haven't seen on Samsung models in the past. You can either attach the One Connect box to the stand, directly on the back, or leave it on its own close to the TV. There's a plastic cover next to the box that serves as cable management.

Design
Borders
Borders 0.35" (0.9 cm)
Design
Thickness
Max Thickness 0.83" (2.1 cm)

The Samsung QN800A is extremely thin, giving it a nice look. You can attach the One Connect box to the back, but we measured without it.

9.0
Design
Build Quality

The build quality of the Samsung QN800A is fantastic. The entire TV is well-put-together, and there isn't anything obvious that stands out. The back panel doesn't flex all that much and feels very solid. The TV wobbles just a bit, but that's somewhat expected due to its size and center-mounted stand.

Picture Quality
7.4
Picture Quality
Contrast
Native Contrast
1,613 : 1
Contrast with local dimming
10,568 : 1

The Samsung QN800A has a decent contrast ratio. VA panels like this one rarely have such a low native contrast ratio, but we saw the same thing with the Samsung Q800T QLED. This is because of Samsung's 'Ultra Viewing Angle' layer. However, the local dimming feature greatly improves the contrast to deliver deep blacks. Also, the local dimming feature can only be disabled through the service menu, so we expect most people to have it on while watching content.

9.1
Picture Quality
SDR Brightness
Real Scene Peak Brightness
950 cd/m²
Peak 2% Window
1,150 cd/m²
Peak 10% Window
1,343 cd/m²
Peak 25% Window
1,227 cd/m²
Peak 50% Window
744 cd/m²
Peak 100% Window
523 cd/m²
Sustained 2% Window
1,129 cd/m²
Sustained 10% Window
1,309 cd/m²
Sustained 25% Window
1,206 cd/m²
Sustained 50% Window
741 cd/m²
Sustained 100% Window
518 cd/m²
Automatic Brightness Limiting (ABL)
0.051

Update 07/29/2021: We retested the peak brightness with the latest firmware available (1511). Most scenes are a bit brighter than before, but not noticeably so. The real scene peak brightness stayed the same.

The Samsung QN800A has fantastic peak brightness in SDR. It easily gets bright enough to combat glare even in the brightest lighting conditions. There isn't any frame dimming with the 2% window that we saw with the Samsung Q800T QLED either. However, the screen loses brightness when there are large, bright areas due to the Automatic Brightness Limiter (ABL). This is disappointing if you watch sports with a hockey rink or basketball court.

We tested brightness after calibration in the 'Movie' Picture Mode with Brightness at its max, Color Tone set to 'Warm2', and Local Dimming on 'High'. We got the brightest image with these settings, as seen in the 10% peak window.

5.0
Picture Quality
Local Dimming
Local Dimming
Yes
Backlight
Full-Array

Update 07/29/2021: We retested the local dimming feature with the latest firmware available (1511). The overall performance of the local dimming feature is about the same as before, but the blooming is a bit less noticeable, as the system is averaging out the brightness across more zones than before.

The Samsung QN800A has a poor local dimming feature. This is disappointing considering it's a high-end Mini LED TV with 1344 dimming zones, and it's not nearly as good as the Samsung QN90A QLED. It helps improve the contrast by making blacks look deep, but there's intense blooming around bright objects. It's noticeable in any content with bright objects, and it's very distracting. Subtitles are also hard to read because of it, and it causes some uniformity issues. The blooming is the main reason why we scored the local dimming so low. Other than that, there isn't much black crush, but if there's one big bright highlight in a scene, other secondary highlights seem to be dimmer. It's visible in 'Planet Earth', where stars behind the bright Earth are dim. Fast-moving objects transition between zones quickly, but the zone transitions are also noticeable due to the blooming. Overall, the local dimming makes highlights pop, but the blooming worsens the picture quality.

We tested it with Local Dimming on 'High'.

5.0
Picture Quality
Local Dimming In Game Mode
Local Dimming
Yes
Backlight
Full-Array

Update 07/29/2021: We retested the local dimming feature with the latest firmware available (1511). With the new firmware, the local dimming feature in Game Mode performs very similar to when it's out of Game mode. There's less blooming, as the TV is averaging out bright highlights across more zones, spreading out the blooming so it's less noticeable.

The Samsung QN800A's local dimming feature in Game Mode is disappointing. It has many of the same issues as outside of Game Mode, with noticeable blooming.

9.2
Picture Quality
HDR Brightness
Real Scene Highlight
1,626 cd/m²
Peak 2% Window
1,293 cd/m²
Peak 10% Window
1,452 cd/m²
Peak 25% Window
1,422 cd/m²
Peak 50% Window
862 cd/m²
Peak 100% Window
550 cd/m²
Sustained 2% Window
1,263 cd/m²
Sustained 10% Window
1,374 cd/m²
Sustained 25% Window
1,399 cd/m²
Sustained 50% Window
859 cd/m²
Sustained 100% Window
547 cd/m²
Automatic Brightness Limiting (ABL)
0.052

Update 07/29/2021: We retested the peak brightness with the latest firmware available (1511). Overall peak brightness has increased a bit in all test windows and our real scene test, but the difference isn't really noticeable.

The HDR brightness is fantastic. It gets significantly brighter than in SDR, enough to make highlights really pop. Once again, large areas are dimmer due to the aggressive ABL, but we didn't notice any frame dimming like the Samsung Q800T QLED.

We tested brightness in the 'Movie HDR' Picture Mode with Brightness and Contrast at their max, Color Tone set to 'Warm2', Local Dimming on 'High', and all other image processing disabled.

The EOTF follows the target curve fairly well, but scenes appear over-brightened. If you still find that too dim, set the Contrast Enhancer to 'High' and ST.2084 to max. This results in a noticeably brighter image, as you can see in this EOTF.

9.1
Picture Quality
HDR Brightness In Game Mode
Real Scene Highlight
1,352 cd/m²
Peak 2% Window
1,510 cd/m²
Peak 10% Window
1,554 cd/m²
Peak 25% Window
1,393 cd/m²
Peak 50% Window
841 cd/m²
Peak 100% Window
576 cd/m²
Sustained 2% Window
1,445 cd/m²
Sustained 10% Window
1,509 cd/m²
Sustained 25% Window
1,371 cd/m²
Sustained 50% Window
833 cd/m²
Sustained 100% Window
570 cd/m²
Automatic Brightness Limiting (ABL)
0.063

Update 07/29/2021: We retested the peak brightness with the latest firmware available (1511). Most scenes are a bit dimmer than they were before, but the TV is no longer dimming small bright objects. The 2% window increased significantly, and the 10% window is a bit brighter than it used to be.

The Samsung QN800A has incredible HDR brightness in Game Mode. It looks very similar to outside of Game Mode, except small highlights are noticeably more dim due to frame dimming, as seen in the 2% window. This is normal behavior for most Samsung TVs we've tested in 2021.

We tested brightness with Game Mode enabled, Brightness and Contrast at their max, Color Tone set to 'Warm2', Local Dimming on 'High', Sharpness set to '0', and Color Gamut on 'Auto'.

The EOTF doesn't follow the PQ target curve all that well because most scenes are over-brightened, especially really bright ones. However, if you want to make the image appear even brighter, use the same settings as outside of Game Mode.

7.7
Picture Quality
Gray Uniformity
50% Std. Dev.
1.902%
50% DSE
0.202%
5% Std. Dev.
0.410%
5% DSE
0.064%

The Samsung QN800A has good gray uniformity. Although the screen is fairly uniform throughout, there's a bit of dirty screen effect in the center, which could be distracting during sports. The screen is much more uniform in near-dark scenes. Keep in mind that uniformity may vary between units.

7.7
Picture Quality
Black Uniformity
Native Std. Dev.
1.336%
Std. Dev. w/ L.D.
0.396%

The black uniformity is good, but this can vary between units. Without local dimming, the entire screen is blue, and there's intense clouding throughout. However, with it enabled, the screen is much more black, but the blooming is pronounced.

6.7
Picture Quality
Viewing Angle
Color Washout
38°
Color Shift
21°
Brightness Loss
46°
Black Level Raise
70°
Gamma Shift
16°

Despite having Samsung's 'Ultra Viewing Angle', the Samsung QN800A has only okay viewing angles. The colors start to change hue fairly quickly when moving off-center, causing the image to appear inaccurate. This behavior is more in line with other VA panels, and it's not suggested for wide seating arrangements like the Samsung QN85A QLED, which has an IPS-like panel.

9.0
Picture Quality
Reflections
Screen Finish
Glossy
Total Reflections
2.1%
Indirect Reflections
1.3%
Calculated Direct Reflections
0.8%

The Samsung QN800A has fantastic reflection handling. Unlike the Samsung Q800T QLED, it has a glossy finish that reflects minimal light. However, due to its 'Ultra Viewing Angle' layer, there's a rainbow-like effect when light scatters across the screen. This can be distracting, especially if you want to place it in a room with direct sunlight. You can see an example of it with the Samsung Q80/Q80T QLED from Reddit here.

6.2
Picture Quality
Pre Calibration
White Balance dE
5.12
Color dE
3.52
Gamma
1.89
Color Temperature
6,582 K
Picture Mode
Movie
Color Temp Setting
Warm 2
Gamma Setting
2.2

The out-of-the-box accuracy is mediocre. It's much worse than most Samsung TVs we've tested in 2021, but this can vary between units. Most colors are inaccurate, and white balance is very off, which affects the shades of gray. Gamma also does a terrible job at following the 2.2 target, so most scenes are too bright. On the plus side, color temperature is nearly spot-on with our 6500K target.

9.5
Picture Quality
Post Calibration
White Balance dE
0.28
Color dE
1.16
Gamma
2.20
Color Temperature
6,486 K
White Balance Calibration
20 point
Color Calibration
Yes

The accuracy after calibration is incredible. Any remaining inaccuracies in the white balance and with colors can't be spotted without the aid of a colorimeter. Gamma follows the target almost perfectly, except for some really bright scenes that are slightly over-darkened. The color temperature is a bit warmer, but it's still close to the target.

You can see our recommended settings here.

8.0
Picture Quality
480p Input

The Samsung QN800A upscales 480p content, like from DVDs, without any issues.

8.0
Picture Quality
720p Input

720p content, like from cable boxes, is upscaled well.

9.0
Picture Quality
1080p Input

This TV displays 1080p content, such as from Blu-rays or gaming consoles, very well.

9.5
Picture Quality
4k Input

Like with the Samsung Q800T QLED, the Samsung QN800A doesn't display a perfect 4k image. There are some upscaling artifacts, but they're very minor and hard to spot. However, this is somewhat expected since it's not a native 4k TV.

9.5
Picture Quality
8k Input

As with some other 8k TVs we've tested, the Samsung QN800A can't display a perfect 8k image either. There's some dithering in the shadows, which is hard to see in the photo, but it's more noticeable in person. This means that some pixels are dimmed, and you can lose some fine details.

Picture Quality
Pixels

The Samsung QN800A uses a BGR sub-pixel layout, which can affect how text is rendered when using the TV as a PC monitor. You can read more about that here. The pixels look blurry due to the 'Ultra Viewing Angle' layer.

7.4
Picture Quality
Color Gamut
Wide Color Gamut
No
DCI P3 xy
83.46%
DCI P3 uv
88.99%
Rec 2020 xy
60.04%
Rec 2020 uv
65.25%

Update 07/29/2021: We retested the color gamut with the latest firmware available (1511). The color gamut decreased a bit, but not noticeably so.

The Samsung QN800A has a good color gamut. Surprisingly, it's not considered a wide color gamut for HDR content because it has limited coverage of the Rec. 2020 color space. It's actually the first Samsung QLED we've tested that doesn't display a wide color gamut, and it's much worse than the Samsung QN90A QLED. However, if you want to use it to watch content with the commonly-used DCI P3 color space, it has impressive coverage. If you want a TV with a wider color gamut, consider the Sony A80J OLED.

6.9
Picture Quality
Color Volume
Normalized DCI P3 Coverage ITP
79.4%
10,000 cd/m² DCI P3 Coverage ITP
51.9%
Normalized Rec 2020 Coverage ITP
58.7%
10,000 cd/m² Rec 2020 Coverage ITP
38.1%

Update 07/29/2021: We retested the color volume with the latest firmware available (1511). The color volume increased a bit, but not noticeably so.

Due to its less-than-ideal color gamut, the Samsung QN800A has an okay color volume. It displays dark and bright colors well, but it doesn't display a very wide range of colors.

7.9
Picture Quality
Gradient
Color Depth
10 Bit
Red (Std. Dev.)
0.112
Green (Std. Dev.)
0.130
Blue (Std. Dev.)
0.089
Gray (Std. Dev.)
0.116

The Samsung QN800A has good gradient handling. There's noticeable banding in almost every color, especially gray. Setting Noise Reduction to 'Auto' helps reduce any banding, especially in real content, but that could come at the cost of artifacts and losing fine details.

10
Picture Quality
Temporary Image Retention
IR after 0 min recovery
0.00%
IR after 2 min recovery
0.00%
IR after 4 min recovery
0.00%
IR after 6 min recovery
0.00%
IR after 8 min recovery
0.00%
IR after 10 min recovery
0.00%

There are no signs of temporary image retention after displaying a high-contrast static image for 10 minutes. However, this can vary between units.

10
Picture Quality
Permanent Burn-In Risk
Permanent Burn-In Risk
No

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

Motion
8.6
Motion
Response Time
80% Response Time
3.8 ms
100% Response Time
8.7 ms

Update 08/17/2021: We noticed a mistake in the calculation of some of the response time results. The charts have been updated and we've recalculated the average response time.

The Samsung QN800A has an excellent overall response time. There's significant overshoot in the 0-20% transition, which can lead to some artifacts in dark scenes, but there's no overshoot in most brighter scenes.

9.9
Motion
Flicker-Free
Flicker-Free
No
PWM Dimming Frequency
960 Hz

The Samsung QN800A uses Pulse Width Modulation (PWM) to dim its backlight. The backlight flickers at such a high frequency that you shouldn't notice it. However, the flicker frequency drops to 120Hz in the 'Dynamic', 'Natural', 'Standard', and 'Filmmaker' Picture Modes, and if you enable Game Motion Plus or Picture Clarity settings. In Game Mode, it flickers at 480Hz.

10
Motion
Black Frame Insertion (BFI)
Optional BFI
Yes
Min Flicker For 60 fps
60 Hz
60Hz For 60 fps
Yes
120Hz For 120 fps
Yes
Min Flicker for 60 fps in Game Mode
60 Hz

The Samsung QN800A has a Black Frame Insertion feature to help reduce motion blur. However, it doesn't perform that well as it causes image duplication behind fast-moving objects. The backlight flickers at 120Hz if you enable Picture Clarity without adjusting the Blur Reduction or Judder Reduction sliders. For it to flicker at 60Hz, you need to enable LED Clear Motion in the 'Picture Clarity' settings page. Note that our BFI scoring is based on whether it can flicker at 60Hz and 120Hz, and not the actual performance.

Motion
Motion Interpolation
Motion Interpolation (30 fps)
Yes
Motion Interpolation (60 fps)
Yes

The Samsung QN800A has a motion interpolation feature, known as the 'Soap Opera Effect'. It can interpolate 30fps and 60fps content up to 120fps. It does a good job at smoothing out slow scenes, but artifacts are visible the moment there's more action on the screen.

See here for the settings that control motion interpolation.

6.5
Motion
Stutter
Frame Hold Time @ 24 fps
33.0 ms
Frame Hold Time @ 60 fps
8.0 ms

Update 08/17/2021: There was a mistake in our response time measurements, which impacts our stutter results as well. We've corrected both.

Unfortunately, due to the relatively fast response time, there's noticeable stutter with some content. It's especially noticeable in slow panning shots in movies. If this bothers you, enabling the motion interpolation feature can help to reduce the appearance of stutter.

10
Motion
24p Judder
Judder-Free 24p
Yes
Judder-Free 24p via 60p
Yes
Judder-Free 24p via 60i
Yes
Judder-Free 24p via Native Apps
Yes

The Samsung QN800A automatically removes judder from all sources, and there aren't any settings you need to enable. This is a nice upgrade from the Samsung Q800T QLED because you needed to adjust settings for that TV.

9.4
Motion
Variable Refresh Rate
Native Refresh Rate
120 Hz
Variable Refresh Rate
Yes
HDMI Forum VRR
Unknown
FreeSync
Yes
G-SYNC Compatible
No
4k VRR Maximum
120 Hz
4k VRR Minimum
< 20 Hz
1080p VRR Maximum
120 Hz
1080p VRR Minimum
< 20 Hz
1440p VRR Maximum
120 Hz
1440p VRR Minimum
< 20 Hz
VRR Supported Connectors
HDMI

The Samsung QN800A has native FreeSync support to reduce screen tearing, but unlike the Samsung Q800T QLED, it's not officially listed as G-SYNC compatible. However, we found it was enabled when connected to a PC with an RTX 3070 graphics card; there was screen tearing with our pendulum video, but it was tear-free in Destiny 2. If you notice the same thing with your QN90A, let us know.

We noticed that when the frame rate of the game drops below 60fps, the TV doubles every frame to keep the frame rate above 60fps. A 50fps video would become 100fps; it doesn't change the way the image looks, but it's a way for the TV to continue having VRR work. Also, if you're using an HDMI 2.0 source, VRR stops working below 48Hz.

Inputs
9.7
Inputs
Input Lag
1080p @ 60Hz
10.3 ms
1080p @ 60Hz Outside Game Mode
104.9 ms
1440p @ 60Hz
10.2 ms
4k @ 60Hz
10.2 ms
4k @ 60Hz + 10-Bit HDR
10.1 ms
4k @ 60Hz @ 4:4:4
10.2 ms
4k @ 60Hz Outside Game Mode
82.4 ms
4k @ 60Hz With Interpolation
15.0 ms
8k @ 60Hz
10.4 ms
1080p @ 120Hz
6.0 ms
1440p @ 120Hz
6.1 ms
4k @ 120Hz
6.0 ms

The Samsung QN800A has incredibly low input lag when in Game Mode. It increases slightly with Game Motion Plus enabled, but most people shouldn't notice a difference. If you're using the TV as a PC monitor and want the lowest input lag, simply enable Game Mode.

We couldn't properly measure the input lag with VRR enabled. We don't know if this is an issue with the TV's firmware or with our testing, and we're looking into it. That said, we don't expect the input lag to significantly increase with VRR enabled.

10
Inputs
Supported Resolutions
1080p @ 60Hz @ 4:4:4
Yes
1080p @ 120Hz
Yes (native support)
1440p @ 60Hz
Yes (native support)
1440p @ 120Hz
Yes (native support)
4k @ 60Hz
Yes
4k @ 60Hz @ 4:4:4
Yes
4k @ 120Hz
Yes (native support)
8k @ 30Hz or 24Hz
Yes
8k @ 60Hz
Yes

The Samsung QN800A displays any common resolution up to 8k @ 60Hz. It displays proper chroma 4:4:4 at all of its supported resolutions, except for 1440p @ 120Hz, which is a common issue amongst Samsung TVs. For full-bandwidth signals, enable Input Signal Plus.

We noticed an issue where the TV sometimes recognized the HDMI connection as a DVI connection instead, limiting it to DVI bandwidth. It happened throughout testing on both HDMI 2.0 and 2.1 sources. To fix it, we had to turn Input Signal Plus on and off. Let us know if you experience the same issue.

Inputs
Advanced Console Compatibility
Auto Low Latency Mode (ALLM)
Yes
PS5, 4k @ 120Hz + HDR
Yes
PS5, 4k @ 120Hz
Yes
PS5, 4k @ 60Hz + HDR
Yes
PS5, 1440p @ 120Hz
PS5 can't do 1440p
PS5, 1080p @ 120Hz
Yes
PS5, Variable Refresh Rate
PS5 can't do VRR yet
Xbox Series X, 4k @ 120Hz + HDR
Yes
Xbox Series X, 4k @ 120Hz
Yes
Xbox Series X, 4k @ 60Hz + HDR
Yes
Xbox Series X, 1440p @ 120Hz
Yes
Xbox Series X, 1080p @ 120Hz
Yes
Xbox Series X, Variable Refresh Rate
Yes

The Samsung QN800A doesn't have any issues displaying content from either the PS5 or the Xbox Series X. It has an Auto Low Latency Mode (ALLM), automatically switching the TV into Game Mode when you launch a game from a compatible device. For it to work, enable Anynet+ (HDMI-CEC) in the 'External Device Manager and switch Game Mode to 'Auto'.

There's a new 'Game Bar' feature on Samsung TVs in 2021. If you hold the Play/Pause button on the remote, it brings up the 'Game Bar' page, which shows you the VRR, current frame rate, or other useful gaming info.

Inputs
Inputs Specifications
HDR10
Yes
HDR10+
Yes
Dolby Vision
No
HLG
Yes
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3,4)
HDMI 2.1 Class Bandwidth
Yes (HDMI 1,2,3,4)
CEC Yes
HDCP 2.2 Yes (HDMI 1,2,3,4)
USB 3.0
No
Variable Analog Audio Out No
Wi-Fi Support Yes (2.4 GHz, 5 GHz)

Unlike Samsung's 4k Neo QLED TVs, the Samsung QN800A has HDMI 2.1 support on all four inputs, which is great.

Inputs
Input Photos

The One Connect box can be placed on the stand, back panel, or removed and placed wherever you like. All inputs are here, and the only input on the TV is for the box.

Inputs
Total Inputs
HDMI 4
USB 3
Digital Optical Audio Out 1
Analog Audio Out 3.5mm 0
Analog Audio Out RCA 0
Component In 0
Composite In 0
Tuner (Cable/Ant) 1
Ethernet 1
DisplayPort 0
IR In 0
SD/SDHC 0
Inputs
Audio Passthrough
ARC
Yes (HDMI 3)
eARC support
Yes
Dolby Atmos via TrueHD via eARC
Yes
DTS:X via DTS-HD MA via eARC
No
5.1 Dolby Digital via ARC
Yes
5.1 DTS via ARC
No
5.1 Dolby Digital via Optical
Yes
5.1 DTS via Optical
No

The Samsung QN800A supports Dolby audio formats, including Dolby Atmos via TrueHD through eARC. For it to work, enable HDMI-eARC Mode and set Digital Output Audio to 'Pass-Through'.

Sound Quality
7.0
Sound Quality
Frequency Response
Low-Frequency Extension
119.87 Hz
Std. Dev. @ 70
2.83 dB
Std. Dev. @ 80
2.87 dB
Std. Dev. @ Max
3.78 dB
Max
89.2 dB SPL
Dynamic Range Compression
3.63 dB

The frequency response is just decent. Despite having dedicated speakers on the back, it completely lacks any bass. Even during regular use, you don't hear any bass. Other than that, it has a well-balanced sound profile for dialogue and gets loud enough for most environments.

7.1
Sound Quality
Distortion
Weighted THD @ 80
0.734
Weighted THD @ Max
1.169
IMD @ 80
0.58%
IMD @ Max
1.44%

The Samsung QN800A has decent distortion performance. There's audible total harmonic distortion at moderate listening levels, and it gets quite noticeable at its max level. This is similar to the Samsung Q800T QLED.

Smart Features
8.5
Smart Features
Interface
Smart OS Tizen
Version 2021
Ease of Use
Easy
Smoothness
Very Smooth
Time Taken to Select YouTube
2 s
Time Taken to Change Backlight
5 s
Advanced Options
Many

Samsung's 2021 Tizen OS is a nice upgrade, as it feels smoother to use than the 2020 version, and we didn't experience any bugs during testing. There are other features you can access, but that we didn't test for, including:

  • Q-Symphony: Outputs audio from both the speakers and a soundbar, but only with compatible Samsung soundbars.
  • Tap View: Mirror your phone to the TV. Multi View allows you to mirror your screen and continue streaming content, somewhat like a Picture-by-Picture Mode.
  • SpaceFit Sound: Digital room correction feature to optimize audio based on your room's acoustics.
  • Super UltraWide GameView: Displays 32:9 ultrawide games, but only from a PC.

0
Smart Features
Ad-Free
Ads
Yes
Opt-out
No
Suggested Content in Home
Yes
Opt-out of Suggested Content
No

The Samsung QN800A has ads on the home page and app store, and there's no way to disable them. They're not always there, so we weren't able to take a photo of them. You can see an ad in the Samsung QN90A QLED in this photo.

8.5
Smart Features
Apps and Features
App Selection
Great
App Smoothness
Very Smooth
Cast Capable
Yes
USB Drive Playback
Yes
USB Drive HDR Playback
Yes
HDR in Netflix
Yes
HDR in YouTube
Yes

Samsung's app store has a large number of streaming apps available, and they run smoothly.

8.5
Smart Features
Remote
Size
Small
Voice Control
Many Features
CEC Menu Control
Yes
Other Smart Features
Yes
Remote App Samsung SmartThings

The Samsung QN800A comes with a redesigned remote compared to 2020's Samsung Q800T QLED. It has a different look with brushed plastic, but it functions the same and has the same quick-access buttons. The main change is that it doesn't use disposable batteries; instead, you can charge it using the solar panel on the back or with a USB-C cable, but it doesn't come with one. The voice commands allow you to change inputs, open apps, or change settings, but you can't search for specific content in apps.

Smart Features
TV Controls

There's one button underneath the Samsung branding on the right to change the volume, channel, source, and turn the TV On/Off.

Smart Features
In The Box

  • Remote
  • Power cable
  • 1x One Connect cable (short)
  • 1x One Connect cable (long)
  • 2x plastic covers for One Connect box
  • Feet and screws for One Connect box
  • User guides

Smart Features
Misc
Power Consumption 139 W
Power Consumption (Max) 429 W
Firmware 1008

Differences Between Sizes And Variants

We tested the 65 inch Samsung QN800A (QN65QN800A) variant, and for the most part, we expect our review to be valid for the 75 inch (QN75QN800A), and the 85 inch variants (QN85QN800A) available in North America. It's known as the Samsung QN850A at Costco and it's available in 75 and 85 inch sizes. We expect the QN800A in Europe to perform similarly, but we don't know for sure because Samsung's lineup is a bit different in Europe.

Size US Costco Canada UK Italy Germany
65" QN65QN800AFXZA - QN65QN800AFXZC QE65QN800ATXXU QE65QN800ATXZT GQ65QN800ATXZG
75" QN75QN800AFXZA QN75QN850AFXZA QN75QN800AFXZC QE75QN800ATXXU QE75QN800ATXZT GQ75QN800ATXZG
85" QN85QN800AFXZA QN85QN850AFXZA  QN85QN800AFXZC QE85QN800ATXXU GQ85QN800ATXZG

If someone comes across a different type of panel or if their Samsung QN800A doesn't correspond to our review, let us know and we'll update the review. Note that some tests, like gray uniformity, may vary between units.

Our unit of the QN800A was manufactured in February 2021; you can see the label here.

Compared To Other TVs

Considering its price point and place in Samsung's Neo QLED lineup, the Samsung QN800A is pretty disappointing. It fails to take advantage of its Mini LED backlighting as its local dimming feature performs poorly and causes too much blooming around bright objects. Also, there isn't much 8k content available, so if you're only going to watch 4k content, the Samsung QN90A QLED costs less and performs better.

See our recommendations for the best Samsung TVs, the best QLED TVs, and the best TVs for watching sports.

Samsung QN900A 8k QLED
65" 75" 85"

The Samsung QN900A 8k QLED sits above the Samsung QN800A 8k QLED in Samsung's lineup. They're similar overall, but there are a few key differences. The QN900A has a slimmer construction with thinner bezels. It also has a better local dimming feature and a significantly faster response time. However, the QN800A gets a bit brighter overall in SDR and HDR.

Samsung QN90A QLED
43" 50" 55" 65" 75" 85"

Despite having a lower resolution, the Samsung QN90A QLED is much better overall than the Samsung QN800A 8k QLED. The main difference is the improved dark room performance. The QN90A displays a wider color gamut, has a much better contrast ratio, and it has a far superior local dimming feature, as there's too much blooming around bright objects with the QN800A. The QN800A is an 8k TV, but since there isn't much 8k content available in 2021, it's worth getting the QN90A.

Samsung Q800T 8k QLED
65" 75" 82"

The Samsung QN800A 8k QLED and its predecessor, the Samsung Q800T 8k QLED, are great TVs with different strengths and weaknesses. The Q800T has a much better local dimming feature, making it a better choice for dark room gaming, and it displays a wider color gamut. However, the QN800A gets brighter, especially in Game Mode, so it's a better choice for bright room viewing. The QN800A displays 4k @ 120Hz content in HDR with the PS5, which the Q800T can't do. The QN800A is also slightly redesigned because it comes with a One Connect box, but other than that, they have many of the same features and performance.

LG CX OLED
48" 55" 65" 77"

The LG CX OLED is much better than the Samsung QN800A 8k QLED, but they have different panel types. The LG is a 4k TV with an OLED panel, allowing it to produce perfect blacks without blooming around bright objects. The LG also has wider viewing angles and a quicker response time. However, the Samsung's 8k LED panel gets significantly brighter, making it a better choice for HDR content.

Samsung Q900TS 8k QLED
65" 75" 85"

The Samsung QN800A 8k QLED and the Samsung Q900TS 8k QLED are both great TVs. Even though the QN800A uses Mini LED as its backlighting, the Q900TS has a better full-array local dimming feature to display deep blacks. It also has a quicker response time than the QN800A, so motion looks smooth. However, the QN800A gets much brighter, especially in HDR 'Game Mode', and it has wider viewing angles that make it better suited for wide seating arrangements.

Samsung Q90/Q90T QLED
55" 65" 75" 85"

The Samsung Q90/Q90T QLED is better overall than the Samsung QN800A 8k QLED. The main difference between the two is that the Q90T has a much better native contrast ratio and full-array local dimming feature, so it displays deeper blacks. The QN800A uses Mini LED backlighting, but there's too much blooming. The Q90T also has a quicker response time for smoother motion. The QN800A supports 8k signals, which the Q90T doesn't, but there's not much native 8k content available in 2021 anyways.

LG NANO99 8k 2020
65" 75"

The Samsung QN800A 8k QLED is better overall than the LG NANO99 8k 2020, but they have different panel types. The Samsung has a VA panel with a better contrast ratio, although it's still not the best. It gets significantly brighter, making it a better choice for watching HDR content or for use in well-lit rooms. The Samsung also has better gaming features like VRR support, which the LG doesn't have. However, the LG has an IPS with wider viewing angles, making it a better choice for wide seating areas.

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