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Samsung QN900B 8k QLED TV Review

Tested using Methodology v1.8
Reviewed Nov 07, 2022 at 10:45 am
Samsung QN900B 8k QLED Picture
8.2
Mixed Usage
Value for price beaten by
: Samsung S95B OLED
7.8
Movies
Value for price beaten by
: Samsung S95B OLED
8.4
TV Shows
Value for price beaten by
: Samsung QN85A QLED
8.4
Sports
Value for price beaten by
: Samsung S95B OLED
8.5
Video Games
Value for price beaten by
: LG C2 OLED
7.9
HDR Movies
Value for price beaten by
: Samsung S95B OLED
8.5
HDR Gaming
Value for price beaten by
: Samsung S95B OLED
8.8
PC Monitor
Value for price beaten by
: Samsung S95B OLED
Black Friday Deal: The Samsung QN900B 8k QLED has dropped in price on bestbuy.com. See all Black Friday TV Deals
Type LED
Sub-Type
VA
Resolution 8k

The Samsung QN900B 8k QLED is Samsung's flagship 8k TV released in 2022, sitting above the Samsung QN850B 8k QLED and the Samsung QN800B 8k QLED, and replacing the Samsung QN900A 8k QLED. It features much of the same technology as the Samsung QN95B QLED, including a Mini LED backlight, allowing for higher peak brightness and finer control of the local dimming zones. Like the QN95B, it uses an external One Connect box instead of traditional inputs, which helps keep your setup neat and organized. It uses Samsung's new Neural Quantum Processor 8k, which is designed to deliver better upscaling, optimized on a scene-by-scene basis, and it's one of the first TVs on the market to offer a 144Hz refresh rate for PC gamers.

Our Verdict

8.2 Mixed Usage

The Samsung QN900B 8k QLED is a great TV for most uses. It looks great in a dark room thanks to its decent local dimming feature, so it's a good choice for watching movies. It has high peak brightness and excellent reflection handling, so it's also a good choice for watching shows or sports in a bright room. It delivers an excellent gaming experience, with low input lag and an extremely fast response time. HDR content looks great thanks to its high HDR peak brightness and wide color gamut. Finally, it's excellent for use as a PC monitor, but there are some distracting uniformity issues.

Pros
  • Amazing peak brightness and excellent reflection handling to overcome glare.
  • Okay viewing angle, so the image remains consistent when viewed from the sides.
  • Easy-to-use smart interface with a great selection of apps.
  • Upscales lower resolution content well.
Cons
  • Some noticeable stutter in slow-panning shots.
  • Low native contrast ratio.
  • Bright lights cause a rainbow smear effect.
7.8 Movies

The Samsung QN900B 8k QLED is a good TV for watching movies in a dark room. Thanks to its decent Mini LED local dimming feature, blacks are deep and uniform in the dark, but there's some blooming around bright highlights and subtitles. It upscales 1080p and 4k content well, which is good as there's very little content available in 8k, and it automatically removes judder from any source. Sadly, due to its quick response time, there's noticeable stutter when watching movies or other low frame rate content.

Pros
  • Completely judder-free from all sources.
  • Easy-to-use smart interface with a great selection of apps.
  • Upscales lower resolution content well.
Cons
  • Some noticeable stutter in slow-panning shots.
  • Low native contrast ratio.
  • Local dimming results in blooming around bright objects.
8.4 TV Shows

The Samsung QN900B 8k QLED is an impressive TV for watching TV shows in a bright room. It has amazing peak brightness in SDR and excellent reflection handling, so it can easily overcome glare in a bright room. It also has an okay viewing angle, so it's a good choice for a large living room, as the image remains consistent when viewed from a moderate angle. The built-in Tizen smart interface has a great selection of streaming apps, so you can quickly find your favorite content. It upscales lower resolution content well, which is important as since this is an 8k TV and there's very little 8k content, the vast majority of the content you watch will be upscaled by the TV.

Pros
  • Amazing peak brightness and excellent reflection handling to overcome glare.
  • Okay viewing angle, so the image remains consistent when viewed from the sides.
  • Easy-to-use smart interface with a great selection of apps.
  • Upscales lower resolution content well.
Cons
  • Some distracting uniformity issues.
  • Bright lights cause a rainbow smear effect.
8.4 Sports

The Samsung QN900B 8k QLED is a very good TV for watching sports. It has amazing peak brightness and excellent reflection handling, so the screen is easy to see in a bright room. It also has an okay viewing angle, so it's okay for a wider seating arrangement, as the image remains consistent when viewed from a moderate angle. It has a fast response time, meaning you can easily make out fine details in the action. Unfortunately, there are some distracting uniformity issues, which isn't ideal when watching sports, as the center of the screen looks a bit patchy.

Pros
  • Amazing peak brightness and excellent reflection handling to overcome glare.
  • Okay viewing angle, so the image remains consistent when viewed from the sides.
  • Superb response time results in clear motion with little blur.
  • Easy-to-use smart interface with a great selection of apps.
Cons
  • Some distracting uniformity issues.
  • Bright lights cause a rainbow smear effect.
8.5 Video Games

The Samsung QN900B 8k QLED is an excellent TV for playing video games. It has a superb response time thanks to its high refresh rate, resulting in smooth motion handling with very little blur behind fast-moving objects. It also has incredibly low input lag, ensuring a responsive gaming experience. It supports HDMI 2.1 bandwidth on all four of its HDMI inputs, meaning you can take full advantage of multiple consoles or gaming PCs. Finally, it supports all three variable refresh rate (VRR) formats, so you'll enjoy a nearly tear-free gaming experience from any source that supports VRR.

Pros
  • Superb response time results in clear motion with little blur.
  • Incredibly low input lag.
  • Supports all three VRR formats.
Cons
  • Low native contrast ratio.
7.9 HDR Movies

The Samsung QN900B 8k QLED is a good TV for watching HDR movies in a completely dark room. Thanks to its decent Mini LED local dimming feature, blacks are deep and uniform in the dark, but there's some blooming around bright highlights and subtitles. It has fantastic peak brightness in HDR, so bright highlights stand out well, and it has a great HDR color gamut, with nearly full coverage of the DCI-P3 color space used by most HDR content. It also has excellent color volume, so colors appear bright and vibrant.

Pros
  • Fantastic peak brightness in HDR.
  • Completely judder-free from all sources.
  • Easy-to-use smart interface with a great selection of apps.
Cons
  • Some noticeable stutter in slow-panning shots.
  • Low native contrast ratio.
  • Local dimming results in blooming around bright objects.
8.5 HDR Gaming

The Samsung QN900B 8k QLED delivers an excellent HDR gaming experience. It delivers an excellent gaming experience thanks to its low input lag and fast response time. It also supports variable refresh rate technology to reduce tearing. HDR looks incredible thanks to its high peak brightness and decent Mini LED backlight, so bright highlights in games stand out incredibly well. It also has a great HDR color gamut and excellent color volume, so your games look vivid and lifelike.

Pros
  • Fantastic peak brightness in HDR.
  • Superb response time results in clear motion with little blur.
  • Incredibly low input lag.
  • Supports all three VRR formats.
Cons
  • Low native contrast ratio.
8.8 PC Monitor

The Samsung QN900B 8k QLED is an excellent choice for use as a PC monitor. It displays chroma 4:4:4 properly with all supported formats, which is essential for clear text from a PC. It has low input lag, ensuring a responsive desktop experience, and it has an okay viewing angle, so the sides of the screen remain uniform if you're sitting up close. It supports HDMI 2.1 bandwidth on all four of its HDMI inputs, meaning you can take full advantage of your gaming PC. Sadly, there are some uniformity issues, and the center of the screen looks a bit patchy when displaying large areas of uniform color, like when you're browsing the web.

Pros
  • Chroma 4:4:4 is displayed properly with all signals.
  • Okay viewing angle, so the image remains consistent when viewed from the sides.
  • Superb response time results in clear motion with little blur.
  • Incredibly low input lag.
Cons
  • Some distracting uniformity issues.
  • Low native contrast ratio.
  • 8.2 Mixed Usage
  • 7.8 Movies
  • 8.4 TV Shows
  • 8.4 Sports
  • 8.5 Video Games
  • 7.9 HDR Movies
  • 8.5 HDR Gaming
  • 8.8 PC Monitor
  1. Updated Nov 07, 2022: Review published.
  2. Updated Nov 02, 2022: Early access published.

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65" QN65QN900BFXZA
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75" QN75QN900BFXZA
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85" QN85QN900BFXZA
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Differences Between Sizes And Variants

We tested the 65-inch QN900B (QN65QN900BFXZA), which is also available in 75-inch and 85-inch sizes. Note that with Samsung TVs, the four letters after the short model code (FXZA in this case) vary between specific retailers and regions and even between different retailers.

Size US Model Short Model Code
65" QN65QN900BFXZA QN65QN900B
75" QN75QN900BFXZA QN75QN900B
85" QN85QN900BFXZA QN85QN900B

Our unit was manufactured in June 2022, and you can see the label here.

Compared To Other TVs

The Samsung QN900B is a great TV but has disappointing contrast and a lackluster local dimming feature, especially for the price. It delivers similar performance to most of the other recent 8k TVs like the TCL 6 Series/R648 2021 8k QLED, but 8k still isn't worth it for most people, and there are many 4k TVs out there that offer better value for less.

For more options, check out our recommendations for the best TVs and the best 8k TVs, and if you want to stick with a 4k TV, check out the best 4k TVs.

Samsung QN900A 8k QLED
65" 75" 85"

The Samsung QN900B 8k QLED is a slight improvement over its predecessor, the Samsung QN900A 8k QLED. The QN900B has a higher max refresh rate, which is great for PC gamers, and it has a faster response time, so motion looks smoother with less blur around fast-moving objects.

Samsung QN95B QLED
55" 65" 75" 85"

The Samsung QN95B QLED is better than the Samsung QN900B 8k QLED. The QN95B has much better contrast and a better local dimming feature, with less blooming around bright objects. The QN95B also gets brighter in both SDR and HDR, meaning it can handle a bit more glare in a bright room and bright highlights stand out more. The QN95B also has better gradient handling, with less banding in areas of similar color.

Samsung QN800A 8k QLED
65" 75" 85"

The Samsung QN900B 8k QLED is slightly better than the Samsung QN800A 8k QLED. The QN900B has a much better local dimming feature, with significantly less blooming around bright objects. The QN900B is also better for gaming, especially for PC gamers, as it has a higher max refresh rate and better motion handling, with less blur around fast-moving objects.

TCL 6 Series/R648 2021 8k QLED
65" 75"

The Samsung QN900B 8k QLED is slightly better than the TCL 6 Series/R648 2021 8k QLED. The Samsung gets a lot brighter, especially in HDR, and small highlights stand out better. The TCL has a higher native contrast ratio, so blacks look better with local dimming disabled, but the Samsung TV's local dimming feature is more effective at boosting contrast. The Samsung is also better for gaming, with a faster response time and support for HDMI 2.1 bandwidth on all four inputs instead of just two on the TCL.

Test Results

perceptual testing image
Design
Design
Style
Curved No

The Samsung QN900B has a very premium design, with a sleek stand that supports the TV well and extremely thin bezels that help it deliver a more immersive viewing experience.

Design
Accelerated Longevity Test
Uniformity Pictures N/A
Design
Stand

The stand is centered and takes up very little space, which is great if you have a small table. The stand supports the TV well, with very little wobble. The included One Connect box can attach to the back of the TV or the back of the stand, or you can place it elsewhere.

Footprint of the 65" stand: 14.2" x11.8" (or 13.4" with One Connect box). The stand lifts the screen about 3.35" above your table, so most soundbars fit in front of it without blocking the screen.

Design
Back
Wall Mount VESA 400x300

The back of the TV is made of a large flat plastic panel with a textured herringbone pattern. If you want to keep the One Connect box with the TV instead of placing it on a shelf, you can either mount it to the back of the stand or to the back of the TV. Since all of your inputs go to the One Connect box instead of the TV itself, there's nothing to help with cable management. There are also eight speakers on the back of TV designed to improve the frequency response of the TV.

Design
Borders
Borders 0.08" (0.2 cm)
Design
Thickness
Max Thickness 0.63" (1.6 cm)
8.0
Design
Build Quality

The Samsung QN900B has great build quality overall, but there are a few issues. The back panel has a lot of flex to it, much worse than most other TVs, and it almost feels like it's not even properly attached in spots. The back panel also sticks out a bit in the top corners of the TV. Neither of these issues are likely going to cause any serious problems, and they're not noticeable when you're watching TV, but they indicate some potential issues with Samsung's quality control.

Picture Quality
7.4
Picture Quality
Contrast
Native Contrast
1,428 : 1
Contrast with local dimming
20,480 : 1

The Samsung QN900B has a low native contrast ratio due to Samsung's 'Ultra Viewing Angle' layer, which improves the viewing angle but reduces the native panel contrast. Since local dimming is always enabled on this TV, this won't be an issue for most people. With Local Dimming on 'High', this TV has superb contrast, so blacks remain deep and uniform even when displaying bright highlights.

8.9
Picture Quality
SDR Brightness
Real Scene Peak Brightness
724 cd/m²
Peak 2% Window
1,424 cd/m²
Peak 10% Window
1,478 cd/m²
Peak 25% Window
1,174 cd/m²
Peak 50% Window
693 cd/m²
Peak 100% Window
417 cd/m²
Sustained 2% Window
1,357 cd/m²
Sustained 10% Window
1,398 cd/m²
Sustained 25% Window
1,059 cd/m²
Sustained 50% Window
690 cd/m²
Sustained 100% Window
415 cd/m²
Automatic Brightness Limiting (ABL)
0.068

The Samsung QN900B has amazing peak brightness in SDR. Scenes with small areas of bright lights get extremely bright, and overall, it can easily overcome glare even in a well-lit room. Unfortunately, it has a fairly aggressive automatic brightness limiter (ABL), so scenes with large bright areas, like a hockey rink, are considerably dimmer.

These measurements are after calibration, using the 'Movie' Picture Mode with Brightness at max, Color Tone set to 'Warm2', and Local Dimming on 'High'.

7.0
Picture Quality
Local Dimming
Local Dimming
Yes
Backlight
Full-Array

The Samsung QN900B has a decent full array local dimming feature. It uses Mini LED backlighting in a 48x28 array, for an impressive 1344 local dimming zones. Unfortunately, it doesn't seem to be using those zones effectively, as there's significant blooming around bright objects, as the TV spreads the light from bright objects around more zones than it needs to. It's especially distracting when watching content with subtitles, as there's blooming around the text that bleeds into surrounding areas.

The TV's algorithms keep up well with most content. Fast-moving objects have a slightly darker leading edge and a trail of bright lights behind them, but this isn't really noticeable with most real content. The algorithms also cause some black crush in scenes with small, near-dark objects.

7.0
Picture Quality
Local Dimming In Game Mode
Local Dimming
Yes
Backlight
Full-Array

Like most Samsung TVs, the local dimming feature behaves a bit differently in 'Game' mode. There's a bit less blooming, but it's mainly because blacks are raised across the entire screen, so the blooming effect isn't as noticeable. Zone transitions are also slightly slower than in 'Movie' mode, but it's not really noticeable with real content. On the other hand, shadow details are a bit better, and there's less black crush overall.

9.1
Picture Quality
HDR Brightness
Hallway Lights (~1950 cd/m²)
1,042 cd/m²
Yellow Skyscraper (~700 cd/m²)
655 cd/m²
Landscape Pool (~300 cd/m²)
340 cd/m²
Peak 2% Window
1,417 cd/m²
Peak 10% Window
1,432 cd/m²
Peak 25% Window
1,113 cd/m²
Peak 50% Window
665 cd/m²
Peak 100% Window
433 cd/m²
Sustained 2% Window
1,338 cd/m²
Sustained 10% Window
1,359 cd/m²
Sustained 25% Window
1,087 cd/m²
Sustained 50% Window
664 cd/m²
Sustained 100% Window
431 cd/m²
Automatic Brightness Limiting (ABL)
0.066

The Samsung QN900B has fantastic peak brightness in HDR. Like in SDR, large bright scenes are dimmed considerably by the TV's automatic brightness limiter (ABL), but small highlights get extremely bright.

These measurements are in the 'Movie' HDR Picture Mode with Brightness and Contrast at max, Local Dimming set to 'High', and Color Tone set to 'Warm2'.

8.8
Picture Quality
HDR Brightness In Game Mode
Hallway Lights (~1950 cd/m²)
667 cd/m²
Yellow Skyscraper (~700 cd/m²)
722 cd/m²
Landscape Pool (~300 cd/m²)
310 cd/m²
Peak 2% Window
1,370 cd/m²
Peak 10% Window
1,371 cd/m²
Peak 25% Window
1,021 cd/m²
Peak 50% Window
622 cd/m²
Peak 100% Window
420 cd/m²
Sustained 2% Window
1,292 cd/m²
Sustained 10% Window
1,296 cd/m²
Sustained 25% Window
998 cd/m²
Sustained 50% Window
620 cd/m²
Sustained 100% Window
418 cd/m²
Automatic Brightness Limiting (ABL)
0.066

The Samsung QN900B is slightly dimmer in 'Game' mode. It was measured with the same settings as the HDR Brightness measurements but in the 'Game' Picture Mode with HDR10+ Gaming set to 'Basic'.

6.9
Picture Quality
PQ EOTF Tracking
600 Nit Tracking Delta
0.0277
1000 Nit Tracking Delta
0.0277
4000 Nit Tracking Delta
0.0242

Unfortunately, the Samsung QN900B doesn't track the PQ EOTF properly, so most scenes are brighter than they should be. It also tracks differently depending on the mastering level of the content; content mastered at 4,000 cd/m² is slightly closer to target brightness than content mastered at lower brightness levels. 'FILMMAKER' mode tracks the EOTF slightly better, but it's still slightly too bright in most scenes.

7.7
Picture Quality
Gradient
Color Depth
10 Bit
Red (Std. Dev.)
0.122
Green (Std. Dev.)
0.136
Blue (Std. Dev.)
0.093
Gray (Std. Dev.)
0.119

The Samsung QN900B has good gradient handling, but it's a bit worse than most high-end Samsung TVs, like the Samsung QN95B QLED. There's some noticeable banding in darker shades of gray, green, and red. There's a Noise Reduction feature to reduce banding; it works well with real content but causes a loss of fine details.

7.3
Picture Quality
Gray Uniformity
50% Std. Dev.
2.349%
50% DSE
0.223%
5% Std. Dev.
0.554%
5% DSE
0.092%

The Samsung QN900B has just decent gray uniformity. There's a large dark band across the entire width of the screen, which is distracting when watching sports. The sides of the screen are also a bit darker than the center. Unfortunately, the LED backlight grid is noticeable with certain content, especially if the TV is displaying a white screen or any uniform color.

7.2
Picture Quality
Black Uniformity
Native Std. Dev.
1.846%
Std. Dev. w/ L.D.
0.388%

With Local Dimming disabled from the service menu, the screen is very cloudy, which is distracting in dark scenes. Fortunately, with this feature enabled, the Samsung QN900B has fantastic black uniformity, with almost no noticeable clouding.

6.9
Picture Quality
Viewing Angle
Color Washout
34°
Color Shift
21°
Brightness Loss
48°
Black Level Raise
70°
Gamma Shift
26°

The Samsung QN900B has an okay viewing angle. The image remains consistent even if you're watching at a slight angle. It's not good enough for a really wide seating arrangement, as colors shift noticeably even at a moderate angle and the image appears washed out.

8.7
Picture Quality
Reflections
Screen Finish
Glossy
Total Reflections
2.6%
Indirect Reflections
1.6%
Calculated Direct Reflections
1.1%

The Samsung QN900B has excellent reflection handling. The glossy coating significantly reduces the intensity of direct, mirror-like reflections, so glare isn't as noticeable in a bright room. Unfortunately, the 'Ultra Viewing Angle' layer causes bright lights to create a rainbow smear across the screen, which can be distracting even if the lights aren't directly opposite the TV, including overhead lights.

8.9
Picture Quality
Pre Calibration
White Balance dE
1.44
Color dE
1.32
Gamma
2.21
Color Temperature
6,242 K
Picture Mode
Movie
Color Temp Setting
Warm 2
Gamma Setting
2.2

The Samsung QN900B has amazing accuracy in SDR before calibration. The white balance is excellent, with no noticeable issues, and the overall color temperature is close to the target. Color accuracy is fantastic, with just a few issues with saturated blues and reds, but it's not noticeable. Gamma is extremely close to the target of 2.2.

9.5
Picture Quality
Post Calibration
White Balance dE
0.31
Color dE
1.13
Gamma
2.21
Color Temperature
6,486 K
White Balance Calibration
20 point
Color Calibration
Yes

The Samsung QN900B is easy to calibrate, and it delivers fantastic accuracy after calibration. Saturated blues and reds are still slightly off after calibration, but we didn't really touch the color calibration. All other remaining issues aren't noticeable.

You can see the full settings used for our calibration here.

8.0
Picture Quality
480p Input

480p content, like DVDs, is upscaled well, with no issues at all.

8.0
Picture Quality
720p Input

720p content, including most cable TV channels, looks great.

9.0
Picture Quality
1080p Input

1080p content, like Blu-rays or older consoles, is upscaled well and looks almost as good as 4k content.

9.5
Picture Quality
4k Input

Similar to the Samsung QN900A 8k QLED, the Samsung QN900B can't display a pixel-perfect 4k image. It's normal, though, as 4k signals have to be upscaled, as this TV has an 8k native resolution.

9.5
Picture Quality
8k Input

Like most 8k TVs we've tested, the Samsung QN900B can't display a perfect 8k image. There's some cross-hatching in the shadows, which is hard to see in the photo, but it's noticeable in person. It's not as bad as the Samsung QN900A 8k QLED, but it's still there.

Picture Quality
Pixels
Subpixel Layout
BGR
Type LED
Sub-Type
VA

Like most TVs on the market, the Samsung QN900B uses a BGR (Blue-Green-Red) subpixel layout instead of the traditional Red-Green-Blue layout. For video content, it doesn't cause any issues, but if you're planning on using this TV as a PC monitor, this reduces text clarity a bit, although there are easy workarounds for it. You can read more about text clarity here. Unfortunately, the anti-reflective coating adds a significant haze to the screen, which makes it hard to make out the pixels clearly.

8.0
Picture Quality
Color Gamut
Wide Color Gamut
Yes
DCI P3 xy
90.09%
DCI P3 uv
93.71%
Rec 2020 xy
65.53%
Rec 2020 uv
71.26%

The Samsung QN900B has a great HDR color gamut. It has fantastic coverage of the DCI-P3 color space used by most Ultra HD Blu-ray movies. Unfortunately, it has limited coverage of the wider Rec. 2020 color space, and the tone mapping is a bit off with highly saturated colors, causing a loss of fine details. You won't notice this with most content, but the Rec. 2020 color space is gaining in popularity, especially in animated films and some nature documentaries.

8.6
Picture Quality
Color Volume
1,000 cd/m² DCI P3 Coverage ITP
86.5%
10,000 cd/m² Rec 2020 Coverage ITP
42.2%
White Luminance
1,392 cd/m²
Red Luminance
259 cd/m²
Green Luminance
949 cd/m²
Blue Luminance
89 cd/m²
Cyan Luminance
1,023 cd/m²
Magenta Luminance
381 cd/m²
Yellow Luminance
1,269 cd/m²

The Samsung QN900B has excellent color volume. Colors are very bright and vibrant, and they stand out well compared to bright whites.

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.

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

VA panels are unlikely to experience burn-in, as the VA panel in our long-term test appears immune.

Motion
9.0
Motion
Response Time
80% Response Time
2.7 ms
100% Response Time
7.2 ms

For the most part, the Samsung QN900B has a superb response time. Motion looks clear, with very little blur behind fast-moving objects. Transitions from black pixels to dark shades are considerably slower, so there's more ghosting in shadow details.

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

The Samsung QN900B uses pulse width modulation (PWM) to dim its backlight, introducing flicker that can bother people who are sensitive to flicker. Like most Samsung TVs, the flicker frequency varies between picture modes and with certain settings:

  • In 'Dynamic', 'Standard', and 'FILMMAKER' modes, the backlight always flickers at 120Hz. This low flicker frequency can cause headaches if you're sensitive to flicker, and it also causes image duplications with 60Hz content.
  • In 'Movie' and 'Game' mode, the backlight flickers at '960Hz' if the 'Brightness' setting is between 0 and 30. The flicker frequency drops to 120Hz with 'Brightness' set to 31 or higher.
  • With the input label set to 'PC', it flickers at 120Hz with a 'Brightness' setting of 46 or lower in both 'Entertain' and 'Graphic' modes, but it's flicker-free between 47 and 50.

The above list isn't exhaustive; we didn't test every combination of settings, meaning the backlight may behave differently with other combinations of settings.

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 QN900B has an optional backlight strobing feature, commonly known as black frame insertion or BFI. This feature works at both 60Hz and 120Hz. The timing of the backlight pulse is a bit off, causing a duplicated image that's offset a bit from the main image, but it's not as bad or as noticeable as it is on the Samsung QN95B QLED. Note that our scoring only reflects the range of flicker frequency and not how well the BFI performs.

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

The Samsung QN900B has an optional motion interpolation feature to increase the frame rate of low frame rate content, reducing the amount of stutter. It works well with slower scenes, but like most TVs, with the settings at max, there are lots of motion artifacts in busier scenes.

6.2
Motion
Stutter
Frame Hold Time @ 24 fps
34.4 ms
Frame Hold Time @ 60 fps
9.4 ms

Unfortunately, due to the Samsung QN900B's quick response time, there's noticeable stutter when watching movies or TV shows. This is especially noticeable in slow panning shots.

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 QN900B automatically removes judder from all sources; no additional settings are needed.

9.5
Motion
Variable Refresh Rate
Native Refresh Rate
144 Hz
Variable Refresh Rate
Yes
HDMI Forum VRR
Yes
FreeSync
Yes
G-SYNC Compatible
Yes
4k VRR Maximum
144 Hz
4k VRR Minimum
< 20 Hz
1080p VRR Maximum
144 Hz
1080p VRR Minimum
< 20 Hz
1440p VRR Maximum
144 Hz
1440p VRR Minimum
< 20 Hz
VRR Supported Connectors
HDMI

The Samsung QN900B supports all three variable refresh rate formats, so it works with any source that supports a variable refresh rate. It works across an extremely wide refresh rate range, with a higher maximum refresh rate than the vast majority of TVs on the market. Low-frame rate compensation (LFC) automatically engages at low refresh rates, multiplying frames to ensure a nearly tear-free gaming experience even at very low frame rates. The variable refresh rate feature also turns on automatically when it's connected to a compatible source, so you don't have to worry about it.

Inputs
9.7
Inputs
Input Lag
1080p @ 60Hz
10.4 ms
1080p @ 60Hz Outside Game Mode
128.0 ms
1080p @ 120Hz
6.0 ms
1080p @ 144Hz
6.0 ms
1440p @ 60Hz
10.6 ms
1440p @ 120Hz
5.9 ms
1440p @ 144Hz
5.8 ms
4k @ 60Hz
10.4 ms
4k @ 60Hz + 10-Bit HDR
10.5 ms
4k @ 60Hz @ 4:4:4
10.5 ms
4k @ 60Hz Outside Game Mode
101.4 ms
4k @ 60Hz With Interpolation
26.8 ms
4k @ 120Hz
5.9 ms
4k @ 144Hz
5.8 ms
8k @ 60Hz
10.6 ms

The Samsung QN900B has incredibly low input lag, ensuring a responsive gaming experience. Unlike most TVs, you can still enable the motion interpolation feature in 'Game' mode, and it adds just a bit of latency. With the feature at its max settings, the input lag goes up to 26.6ms, which is still low enough for casual gaming.

10
Inputs
Supported Resolutions
1080p @ 60Hz @ 4:4:4
Yes
1080p @ 120Hz
Yes
1080p @ 144Hz
Yes
1440p @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 144Hz
Yes
4k @ 60Hz
Yes
Resolution 8k
4k @ 60Hz @ 4:4:4
Yes
4k @ 120Hz
Yes
4k @ 120Hz @ 4:4:4
Yes
4k @ 144Hz
Yes
8k @ 30Hz or 24Hz
Yes
8k @ 60Hz
Yes

The Samsung QN900B supports all common formats natively, without the need for custom resolutions if you're using a PC. Chroma 4:4:4 is displayed properly from all formats, which is essential for clear text from a PC. 4k @ 120Hz and even 4k @ 144Hz signals are displayed properly, with no resolution-halving issue that's plagued TVs from other brands.

Inputs
PS5 Compatibility
Auto Low Latency Mode (ALLM)
Yes
4k @ 120Hz
Yes
1440p @ 120Hz
Yes
1080p @ 120Hz
Yes
HDR
Yes
VRR
Yes

The Samsung QN900B is fully compatible with all supported features of the PS5, including variable refresh rate support and 1440p support.

Inputs
Xbox Series X|S Compatibility
Auto Low Latency Mode (ALLM)
Yes
4k @ 120Hz
Yes
1440p @ 120Hz
Yes
1080p @ 120Hz
Yes
HDR
Yes
VRR
Yes

The Samsung QN900B is nearly fully compatible with all supported features of the Xbox Series S and X, including variable refresh rate support and 1440p support. It doesn't support Dolby Vision for gaming or watching movies, though, which is a bit disappointing.

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)
ATSC Tuner
3.0 (NEXTGEN TV)
USB 3.0
No
Variable Analog Audio Out No
Wi-Fi Support Yes (2.4 GHz, 5 GHz)

All four HDMI inputs support the maximum bandwidth of HDMI 2.1, which is great if you have more than one device that supports 4k @ 120Hz, as you can connect them all without compromising anything. It's also advertised to support Wi-Fi 6E, which is 6GHz, but this only works with Wi-Fi 6E compatible devices for faster speeds.

Inputs
Input Photos

Unlike most TVs, the inputs for the Samsung QN900B are on the separate One Connect box. There's a single cable that goes from the One Connect box to a special connector on the back of the TV, supplying power and data for the inputs.

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 QN900B supports eARC, allowing it to pass uncompressed high-quality audio from a connected source through to your soundbar or home theater system. Sadly, it doesn't support DTS formats, which is disappointing, as many UHD Blu-rays use DTS for their lossless audio tracks.

Sound Quality
7.3
Sound Quality
Frequency Response
Low-Frequency Extension
106.79 Hz
Std. Dev. @ 70
2.42 dB
Std. Dev. @ 80
2.12 dB
Std. Dev. @ Max
2.66 dB
Max
88.9 dB SPL
Dynamic Range Compression
3.66 dB

The Samsung QN900B has a decent frequency response. Like almost all TVs, the low-frequency extension (LFE) is very high, meaning the TV doesn't produce much thump or rumble. The frequency response above the LFE is well-balanced at moderate listening levels, so dialogue is clear and easy to understand. This TV has an optional room correction feature, which was enabled for these measurements.

7.5
Sound Quality
Distortion
Weighted THD @ 80
0.182
Weighted THD @ Max
1.137
IMD @ 80
0.63%
IMD @ Max
1.19%

The Samsung QN900B has good distortion handling. There's very little harmonic distortion in the treble range at moderate volume levels, but it's higher at max volume.

Smart Features
8.5
Smart Features
Interface
Smart OS Tizen
Version 2022
Ease of Use
Easy
Smoothness
Very Smooth
Time Taken to Select YouTube
2 s
Time Taken to Change Backlight
5 s
Advanced Options
Many

The Samsung QN900B runs the updated 2022 version of Tizen OS, which is fast and easy to use. The interface now fills the entire screen instead of the bar that appeared on the previous version. It makes it easier to find your favorite content.

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

Unfortunately, like most TVs on the market, there are ads throughout the interface, and there's no option to disable them completely.

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

The included apps cover most of the common streaming services, and there's a great selection of additional apps available in Samsung's app store.

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

The remote is slim and easy to use but has a limited selection of buttons, so you have to change most things through menus on the TV. There are four quick-access buttons for the most popular streaming services; unfortunately, there's no way to remap these to your favorites. You can recharge the remote via a solar panel on the back or with a USB-C cable (sold separately).

The Samsung QN900B is compatible with multiple voice assistants, including Bixby, Google Assistant, and Alexa, but you have to use the remote as it doesn't have a hands-free mode. Voice controls work well and allow you to launch apps, change inputs, or adjust certain settings.

Smart Features
TV Controls

The controls are beneath the Samsung branding on the bottom right side of the TV. A single button lets you power the TV on/off and change channels, volume, and inputs. The button is very difficult to press, though.

Smart Features
In The Box

  • One Connect box (not shown)
  • Short One Connect cable (8.6")
  • Long One Connect cable (~7.5')
  • Power cable
  • Remote
  • Feet for One Connect box
  • Mounting screws for the One Connect box
  • Cable plug covers
  • Manuals

Smart Features
Misc
Power Consumption 124 W
Power Consumption (Max) 309 W
Firmware 1304

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