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Hisense U8/U8K TV Review

Tested using Methodology v1.11
Reviewed Sep 07, 2023 at 03:21 pm
Latest change: Writing modified Nov 08, 2023 at 11:41 am
Hisense U8/U8K Picture
8.5
Mixed Usage
Value for price beaten by
: none
8.0
TV Shows
Value for price beaten by
: none
7.9
Sports
Value for price beaten by
: Hisense U7K [U7, U75K]
8.8
Video Games
Value for price beaten by
: TCL QM8/QM850G QLED
8.8
HDR Movies
Value for price beaten by
: none
8.9
HDR Gaming
Value for price beaten by
: TCL QM8/QM850G QLED
8.5
PC Monitor
Value for price beaten by
: TCL QM8/QM850G QLED

The Hisense U8/U8K is a mid-range 4k TV released in 2023. It sits between the high-end, limited-release Hisense UX and the Hisense U7K in Hisense's flagship 2023 ULED model. It replaces the Hisense U8/U8H, and while similar, the U8K offers more local dimming zones than its predecessor, a more powerful internal 5-speaker setup, and two HDMI 2.1 bandwidth ports that can do up to 4k @ 144Hz. It still has a full suite of gaming features, like variable refresh rate support and Hisense's Game Mode Pro gaming interface. It's compatible with Dolby Vision HDR and HDR10+, is certified as IMAX Enhanced, and supports DTS and Dolby advanced audio formats. It has the user-friendly Google TV interface, which is easy to use and has a great selection of streaming apps. It comes in a wide range of sizes, from a 55-inch model to a massive 100-inch.

Our Verdict

8.5 Mixed Usage

The Hisense U8K is an excellent TV overall. It's extremely bright in both HDR and SDR and has fantastic reflection handling, so it's stellar in any bright room setting. Its contrast and black uniformity are superb, so it also looks amazing in dark rooms, and highlights pop amazingly well when watching HDR movies and games. Overall, it has very good image processing and supports advanced audio and video formats, making it a great choice for a home entertainment TV. It's great as a gaming TV due to its amazing picture quality, superbly low input lag, and good response time. Unfortunately, its viewing angle is inadequate, so it's not a great TV for any wide seating arrangement, like when watching TV shows or sports with friends.

Pros
  • Fantastic contrast results in deep blacks in a dark room.
  • Exceptionally bright in both SDR and HDR.
  • Fantastic reflection handling.
Cons
  • Image degrades when viewed from the side.
  • It's a bit buggy at times.
8.0 TV Shows

The Hisense U8K is great for TV shows. It gets extremely bright in SDR and has fantastic reflection handling, easily handling extremely bright rooms. It has good image processing, so low-bitrate shows from streaming platforms look good, as does low-resolution content from cable boxes and DVDs. Unfortunately, its viewing angle is inadequate, so it's not the best TV to watch shows in a wide seating arrangement.

Pros
  • Exceptionally bright in both SDR and HDR.
  • Fantastic reflection handling.
  • Low-resolution content is upscaled without any issues.
  • Very good low-quality content smoothing.
Cons
  • Image degrades when viewed from the side.
  • It's a bit buggy at times.
7.9 Sports

The Hisense U8K is a very good TV to watch sports on. It gets extremely bright in SDR and has fantastic reflection handling, easily handling the brightest rooms. Its response time is good, although there's some blur when watching fast-moving sports like hockey. Its gray uniformity is decent, but in some sports with large areas of bright color, the sides of the screen are noticeably darker than the center. Unfortunately, the TV's viewing angle is inadequate, so it's not the best TV for a wide seating arrangement.

Pros
  • Exceptionally bright in both SDR and HDR.
  • Fantastic reflection handling.
  • Good response time with most content.
  • Low-resolution content is upscaled without any issues.
Cons
  • Image degrades when viewed from the side.
  • Some noticeable vignetting on large areas of bright color.
  • It's a bit buggy at times.
8.8 Video Games

The Hisense U8K is an excellent TV to play games on. Its contrast and dark details look fantastic in Game Mode. It gets extremely bright in SDR and has fantastic reflection handling, so it looks great in even the brightest of game rooms. Its input lag is superbly low, so your inputs are translated to the on-screen action very quickly. Its response time, while good overall, does cause some blur when playing action titles.

Pros
  • Exceptionally bright in both SDR and HDR.
  • Fantastic reflection handling.
  • Superbly low input lag.
  • Good response time with most content.
  • Great selection of gaming features.
Cons
  • It's a bit buggy at times.
8.8 HDR Movies

The Hisense U8K is an excellent TV to watch the latest movies on. It has truly fantastic contrast, with nearly perfect black uniformity, so it looks outstanding in a dark room. Its HDR brightness is exceptional, so highlights pop next to the TV's very deep blacks. The TV is very accurate even without any calibration, so you don't have to worry about calibrating it to get an accurate viewing experience. Its low-quality content smoothing is very good, so movies played from streaming services look good even when the bitrate is low.

Pros
  • Fantastic contrast results in deep blacks in a dark room.
  • Exceptionally bright in both SDR and HDR.
  • Nearly perfect black uniformity.
  • Very good low-quality content smoothing.
  • Excellent wide color gamut and amazing color volume.
Cons
  • It's a bit buggy at times.
8.9 HDR Gaming

The Hisense U8 Series is an excellent TV for playing the latest HDR games. The TV looks vibrant and colorful in Game Mode. It has superb contrast and nearly perfect black uniformity, so the TV looks amazing in a dark room. It gets extremely bright in HDR and has fantastic reflection handling, so it looks amazing even in bright rooms. Its input lag is superbly low, so your inputs feel quick and responsive. Unfortunately, its response time does lead to some blur when playing fast titles, although it looks good in slower games.

Pros
  • Fantastic contrast results in deep blacks in a dark room.
  • Exceptionally bright in both SDR and HDR.
  • Superbly low input lag.
  • Good response time with most content.
  • Great selection of gaming features.
Cons
  • It's a bit buggy at times.
8.5 PC Monitor

The Hisense U8K is a great TV to use as a PC monitor. It gets extremely bright in SDR and has fantastic reflection handling, so it easily handles bright offices. It has extremely low input lag, so your mouse movements are quick and responsive. Its response time is good; there's some blur when things start moving quickly, like when playing action games, but it does a solid job overall. Unfortunately, the TV has an inadequate viewing angle, so the sides of the screen are inconsistent with the center when you're sitting close to the TV.

Pros
  • Exceptionally bright in both SDR and HDR.
  • Superbly low input lag.
  • Good response time with most content.
Cons
  • Image degrades when viewed from the side.
  • It's a bit buggy at times.
  • 8.5 Mixed Usage
  • 8.0 TV Shows
  • 7.9 Sports
  • 8.8 Video Games
  • 8.8 HDR Movies
  • 8.9 HDR Gaming
  • 8.5 PC Monitor
  1. Updated Nov 08, 2023: Mentioned the newly reviewed Hisense UX in the Introduction of this review.
  2. Updated Oct 27, 2023: Verified that the TV can do HDR with VRR enabled. To do so, the FreeSync toggle needs to be disabled in the TV's Game Settings menu. Updated the Variable Refresh Rate, PS5 Compatibility, and Xbox Series X|S Compatibility text boxes with the updated information, as well as the Settings page.
  3. Updated Oct 25, 2023: After a recent firmware update, the TV can now do up to 4k @ 144Hz with VRR on NVIDIA cards with no issues. We have updated the Variable Refresh Rate and Supported Resolutions text boxes accordingly.
  4. Updated Sep 27, 2023: We replaced the real scene HDR Brightness photos. These photos are meant to show the perceived contrast of the TVs only, so this change doesn't impact the measurements in the review.
  5. Updated Sep 21, 2023: We bought and tested the LG QNED80 2023 and added a few relevant comparisons below.
  6. Updated Sep 14, 2023: We bought and tested the Sony X95L and added a few relevant comparisons below.
  7. Updated Sep 11, 2023: Hisense reached out to us and confirmed the panel types for the other sizes. They confirmed that the 85" uses a VA panel. We've updated the Differences Between Sizes And Variants section with the correct information.
  8. Updated Sep 07, 2023: Review published.
  9. Updated Aug 31, 2023: Early access published.
  10. Updated Aug 16, 2023: Our testers have started testing this product.
  11. Updated Aug 10, 2023: The product has arrived in our lab, and our testers will start evaluating it soon.
  12. Updated Jul 24, 2023: We've purchased the product and are waiting for it to arrive in our lab.
  13. Updated Jul 22, 2023: The product has won our suggestion poll, so we'll buy and test it soon.

Differences Between Sizes And Variants

We tested the 65-inch Hisense U8K, and the results are also valid for the 55, 85, and 100-inch models. The 75-inch model uses an ADS Pro panel, so it performs a bit differently than the other sizes, as it has worse contrast and black uniformity, different reflection handling due to its glossy screen coating, and a wider viewing angle. In Canada, it's known as the Hisense U88KM, and it performs the same. There are similarly named international models, like the U8KAU in Australia, but these models perform differently to the North American U8K, so our results aren't valid for those models.

 Size US Model Local Dimming Zones Panel Type
55" Hisense 55U8K 672 VA
65" Hisense 65U8K 1,008 VA
75" Hisense 75U8K 1,056 ADS Pro
85" Hisense 85U8K 1,296 VA
100" Hisense 100U8K 1,620 VA

The unit we tested was manufactured in May 2023; you can see the label here.

Compared To Other TVs

The Hisense U8K delivers incredible performance for the price. Its primary competitor is the TCL QM8/QM850G QLED, which is brighter than the Hisense, but in turn, the Hisense is a much more accurate TV and has much better upscaling, making it a bit better overall. The Hisense supports Dolby Vision HDR and HDR10+, as well as DTS and Dolby advanced audio formats. This makes it a fantastic home theater TV for a lower price than its competitors, severely undercutting the Sony X93L/X93CL and even the Sony X90L/X90CL, and it's better than most similarly-priced models like the LG QNED80 2023.

Unfortunately, the Hisense has some bugs: its brightness sometimes resets itself to its default value, and the TV sometimes reboots into a diagnostic mode when changing some settings or starting a game. It's a great performer, but it doesn't feel as reliable as more expensive models from name brands and more expensive models, like the Sony X95L.

See also our recommendations for the best 65-inch TVs, the best 4k TVs, and the best TVs for bright rooms.

Hisense U7K [U7, U75K]
55" 65" 75" 85"

The Hisense U7K and Hisense U8/U8K are similar: they have the same feature set, but the U8K is a higher-tier TV, so it has better overall performance. The U8K gets brighter than the U7K, and this also gives it a higher color volume: colors are brighter and pop more on the more expensive model. It also has a more powerful local dimming feature, giving it better contrast in dark rooms. The U7K does have a better response time than the U8K, which is good for gamers or sports fans.

TCL QM8/QM850G QLED
65" 75" 85" 98"

The TCL QM8/QM850G QLED and Hisense U8/U8K are similar TVs, although the Hisense is a bit better overall. The Hisense has marginally better contrast than the TCL, but the TCL gets brighter than the Hisense in both SDR and HDR. The TCL has a better response time than the Hisense when running at a fixed refresh rate, but with VRR enabled, the TCL's response time varies much more than the Hisense. The Hisense is the more accurate TV of the two, so it looks great without needing to be calibrated. The Hisense also has much better upscaling than the TCL, so low-resolution content looks much better.

Hisense U8/U8H
55" 65" 75"

The Hisense U8/U8H and Hisense U8/U8K are nearly identical TVs, with the U8K being a marginal improvement over its predecessor. The U8K has slightly better contrast and gets slightly brighter, but it's hard to notice. The U8K has significantly improved low-quality content smoothing compared to the U8H; it's a good TV for streaming content. Its response time is slower than the U8H, but it doesn't have the U8H's noticeable red ghosting in some content. The U8H is the more accurate TV, but the U8K is still very accurate overall.

Sony X90L/X90CL
55" 65" 75" 85" 98"

The Hisense U8/U8K is better than the Sony X90L/X90CL. The Hisense is brighter than the Sony with much better reflection handling, so it looks better in a bright room. It also has better contrast, black uniformity, and local dimming feature, so the Hisense looks better in a dark room. The Sony has the edge in response time, upscaling, and HDR gradient handling, although the Hisense also has good image processing. However, the Sony is the more stable TV overall, as the Hisense is a bit buggy.

LG C3 OLED
42" 48" 55" 65" 77" 83"

The Hisense U8/U8K and LG C3 OLED are different TVs, each with their own strengths, although the LG is better overall. The Hisense gets much brighter than the LG and is a bit more colorful, so it's much better suited for bright rooms. The LG, however, has a nearly infinite contrast ratio due to its OLED panel, leading to much better dark room performance. The LG also has better image processing overall, a vastly wider viewing angle, and a near-instantaneous response time with no quirky VRR performance.

Sony X93L/X93CL
65" 75" 85"

The Hisense U8/U8K and Sony X93L/X93CL are closely matched, each having strengths. The Hisense is brighter, has better contrast, and is slightly more colorful; it pops more than the Sony. For its part, the Sony has better PQ EOTF tracking, a better viewing angle, and better image processing. The Sony also has a faster response time than the Hisense, with no quirky behavior when VRR is enabled. Ultimately, the Hisense does more than the Sony, but the Sony is more accurate and stable overall than the Hisense.

Samsung QN90C/QN90CD QLED
43" 50" 55" 65" 75" 85"

The Samsung QN90C/QN90CD QLED and Hisense U8/U8K are closely matched, although the Hisense is a bit better overall. The Hisense has better contrast than the Samsung, is a bit more colorful, and also gets brighter; the Hisense pops more in dark and bright rooms. It also has better low-quality content smoothing than the Samsung TV. The Samsung has a faster response time, no VRR quirks, and lower input lag, so it's better for gamers overall.

Hisense U6/U6K
55" 65" 75"

The Hisense U8/U8K is much better than the Hisense U6/U6K, as they're in two very different tiers regarding overall quality. The U8K outmatches the U6K in every way, as it's much brighter, has much better contrast, has HDMI 2.1 bandwidth on two ports, is more colorful overall, and is the most accurate TV of the two. The U8K also has good image processing overall, while the U6K has poor low-quality content smoothing, so it's a bad choice for streaming content. Still, the Hisense U6K is a much cheaper TV.

Sony X95L
65" 75" 85"

The Sony X95L and the Hisense U8/U8K deliver similar picture quality overall, but the Sony delivers a much smoother experience, with fewer bugs or glitches and a better user experience. The Sony TV also has much better processing, so upscaled or low-quality content from streaming services looks better.

LG QNED80 2023
50" 55" 65" 75" 86"

The Hisense U8/U8K is significantly better than the LG QNED80 2023. The Hisense looks much better in a dark room thanks to its higher native contrast ratio and highly effective Mini LED local dimming feature. This also lets the Hisense get significantly brighter, especially when displaying HDR content, and HDR looks much better overall.

Hisense UX
85"

The Hisense U8/U8K and Hisense UX are very similar TVs, with the Hisense UX being just a bit better overall. The UX gets brighter, has better contrast, and has a higher response time than the U8K. The UX also has a significantly wider viewing angle, making it much better for wide seating arrangements. The U8K, however, has lower input lag, better HDR gradient handling, and is much more color-accurate before calibration. The U8K is also capable of up to 4k @ 144Hz on its two HDMI 2.1 bandwidth ports, while the UX is limited to 120Hz.

Vizio Quantum Pro QLED
65" 75"

The Hisense U8/U8K is significantly better than the Vizio Quantum Pro QLED. The Hisense has much better contrast and a significantly better local dimming feature, so dark scenes look better, with much less blooming around bright highlights. The Hisense also gets much brighter, so bright highlights in HDR stand out better, resulting in a more impactful HDR experience overall. Finally, the Hisense has a much better smart interface, with a wider selection of apps and a smoother user experience.

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Video

Test Results

perceptual testing image
Design
Design
Style
Curved No

The TV has a premium design that looks great in any room. It has thin bezels on three sides, with a thicker, but still thin, bottom bezel. The feet are slim and don't take up much space.

Design
Accelerated Longevity Test
Uniformity Pictures N/A
Design
Stand

The TV comes with a pair of adjustable feet that support the TV well. They're very thin, made of metal, and have minimal front-to-back wobble.

Footprint of the 65-inch stand in the wide position: 44.4" x 12.6". In the narrow position, the 65-inch stand has a footprint of 31.4" x 12.6". In either position, the feet lift the TV about 3.2" above the table, so most soundbars fit in front without blocking the screen. Some longer soundbars don't fit between the feet when they're set in the narrow position.

Design
Back
Wall Mount VESA 400x400

The back of the TV is made of plastic, with a textured horizontal pattern and vents along the top. There's also a built-in subwoofer on the back of the TV near the center. There are clips built into the feet to help with cable management. The inputs are on the left-hand side of the TV when facing the front, and they're easy to access when the TV is wall-mounted.

Design
Borders
Borders 0.35" (0.9 cm)
Design
Thickness
Max Thickness 2.76" (7.0 cm)
7.5
Design
Build Quality

The TV has good build quality. The TV is stout and looks and feels well-built. It's mainly made of hard plastic, with metal feet and borders. There's a bit of front and back wobble, but the feet support the TV well overall. There are no obvious quality control issues with our unit. The back panel has a bit of flex, but it doesn't cause any issues.

Picture Quality
9.4
Picture Quality
Contrast
Contrast
165,360 : 1
Native Contrast
7,577 : 1

The TV's contrast is fantastic. Its native contrast is great, but with local dimming enabled, the TV's contrast ratio is superb, leading to extremely deep blacks in a dark room, even when bright highlights are shown on the screen.

8.0
Picture Quality
Blooming

The TV has great blooming performance, as the small size of its dimming zones minimizes any blooming around bright objects or subtitles in darker scenes. However, there's still noticeable blooming with bright objects on a black, or near black, background.

8.0
Picture Quality
Lighting Zone Transitions
Local Dimming
Yes
Backlight
Full-Array
Dimming Zones Count Of Tested TV
1,008

Overall, the TV's processing keeps up very well with fast-moving objects, and lighting zone transitions aren't very noticeable, with minimal haloing.

9.0
Picture Quality
Contrast And Dark Details In Game Mode

Switching to Game Mode doesn't result in any noticeable difference in dark scene performance, which is great.

9.2
Picture Quality
HDR Brightness
Hallway Lights (~1950 cd/m²)
927 cd/m²
Yellow Skyscraper (~700 cd/m²)
491 cd/m²
Landscape Pool (~300 cd/m²)
350 cd/m²
Peak 2% Window
1,353 cd/m²
Peak 10% Window
1,994 cd/m²
Peak 25% Window
2,157 cd/m²
Peak 50% Window
1,403 cd/m²
Peak 100% Window
853 cd/m²
Sustained 2% Window
1,321 cd/m²
Sustained 10% Window
1,899 cd/m²
Sustained 25% Window
2,096 cd/m²
Sustained 50% Window
1,398 cd/m²
Sustained 100% Window
851 cd/m²
Automatic Brightness Limiting (ABL)
0.044

The Hisense U8K's HDR peak brightness is fantastic. Even though the TV's brightness is significantly dimmer in large bright scenes, it's still easily bright enough to overcome any number of lights. Highlights are extremely bright and stand out very well. There is a bug where the TV's brightness setting randomly defaults back to 78 in HDR and then looks overbrightened upon setting it back to 100. Restarting the TV fixes it.

These measurements are after calibrating the HDR white point with the following settings:

  • HDR Picture Mode: HDR Theater
  • Brightness: 100
  • Gamma: ST2084
  • Local Dimming: High
  • Color Temperature: Warm 1
  • Dynamic Tone Mapping: Off

9.3
Picture Quality
HDR Brightness In Game Mode
Hallway Lights (~1950 cd/m²)
911 cd/m²
Yellow Skyscraper (~700 cd/m²)
516 cd/m²
Landscape Pool (~300 cd/m²)
390 cd/m²
Peak 2% Window
1,233 cd/m²
Peak 10% Window
1,902 cd/m²
Peak 25% Window
2,149 cd/m²
Peak 50% Window
1,420 cd/m²
Peak 100% Window
864 cd/m²
Sustained 2% Window
1,208 cd/m²
Sustained 10% Window
1,842 cd/m²
Sustained 25% Window
2,104 cd/m²
Sustained 50% Window
1,412 cd/m²
Sustained 100% Window
863 cd/m²
Automatic Brightness Limiting (ABL)
0.044

The TV's HDR brightness in Game Mode is fantastic. There's no noticeable difference in peak brightness from 'HDR Theater' mode.

These measurements are after calibrating the HDR white point, with the following settings:

  • HDR Picture Mode: HDR Game
  • Brightness: 100
  • Gamma: ST2084
  • Local Dimming: High
  • Color Temperature: Warm 1
  • Dynamic Tone Mapping: Off

8.3
Picture Quality
PQ EOTF Tracking
600 Nit Tracking Delta
0.0105
1000 Nit Tracking Delta
0.0106
4000 Nit Tracking Delta
0.0110

The TV has great PQ EOTF tracking. It tracks the curve very well, although not perfectly. The TV is a bit too dim in dark scenes for content mastered at 600 and 1,000 nits but is then overbrightened in brighter scenes. For content mastered at 4,000 nits, the TV is overbrightened with most content. The TV has no issue handling content mastered at 600 and 1,000 nits, and for content mastered at 4,000 nits, it slowly rolls off when it hits its peak brightness, preserving bright details.

9.0
Picture Quality
SDR Brightness
Real Scene Peak Brightness
730 cd/m²
Peak 2% Window
1,056 cd/m²
Peak 10% Window
1,549 cd/m²
Peak 25% Window
1,739 cd/m²
Peak 50% Window
1,147 cd/m²
Peak 100% Window
705 cd/m²
Sustained 2% Window
1,002 cd/m²
Sustained 10% Window
1,496 cd/m²
Sustained 25% Window
1,700 cd/m²
Sustained 50% Window
1,141 cd/m²
Sustained 100% Window
704 cd/m²
Automatic Brightness Limiting (ABL)
0.044

The Hisense U8K's SDR brightness is fantastic, so glare isn't an issue even in the brightest rooms. The TV's Automatic Brightness Limiter (ABL) does dim the TV significantly when bright highlights take up a significant portion of the screen, but they're still very bright.

These measurements are after calibration with the following settings:

  • Picture Mode: Theater Night
  • Brightness: 100
  • Local Dimming: High
  • Color Temperature: Warm 1
  • Gamma: 2.2
  • Active Contrast: Off

8.8
Picture Quality
Color Gamut
Wide Color Gamut
Yes
DCI P3 xy
97.88%
DCI P3 uv
97.01%
Rec 2020 xy
76.18%
Rec 2020 uv
81.82%

The Hisense U8K TV has an excellent HDR color gamut. It has fantastic coverage of the commonly used DCI-P3 color space, with stellar tone mapping. The TV also has very good coverage of the wider Rec. 2020 color space, although it struggles with saturated greens, blues, and cyans.

9.0
Picture Quality
Color Volume
1,000 cd/m² DCI P3 Coverage ITP
89.2%
10,000 cd/m² Rec 2020 Coverage ITP
49.4%
White Luminance
1,530 cd/m²
Red Luminance
318 cd/m²
Green Luminance
1,157 cd/m²
Blue Luminance
96 cd/m²
Cyan Luminance
1,240 cd/m²
Magenta Luminance
398 cd/m²
Yellow Luminance
1,475 cd/m²

The TV's color volume in HDR is fantastic. It displays colors well across all luminance levels thanks to its high peak brightness and fantastic contrast ratio. Colors are bright and vibrant, displaying dark, saturated colors well.

8.7
Picture Quality
Pre Calibration
White Balance dE
1.97
Color dE
1.46
Gamma
2.19
Color Temperature
6,676 K
Picture Mode
Theater Night
Color Temp Setting
Warm 1
Gamma Setting
2.2

The Hisense U8K has excellent pre-calibration accuracy. Gamma follows the 2.2 target for a moderately lit room extremely well, and the white balance is great, with only minor accuracy errors in bright whites. Color accuracy is excellent, with no noticeable issues. The color temperature is fantastic; neither too warm nor too cold.

9.4
Picture Quality
Post Calibration
White Balance dE
0.19
Color dE
1.35
Gamma
2.20
Color Temperature
6,499 K
White Balance Calibration
20 point
Color Calibration
Yes

The TV has incredible accuracy after calibration. It's a bit tricky to calibrate, as you need to calibrate it at a lower stimulus than usual; otherwise, the calibration settings don't stick. Still, it already has fantastic accuracy before calibration, so you don't need to calibrate it too much, if any, for an accurate image.

You can see our full calibration settings here.

7.4
Picture Quality
Gray Uniformity
50% Std. Dev.
2.865%
50% DSE
0.183%
5% Std. Dev.
1.146%
5% DSE
0.108%

The TV has decent gray uniformity. There's some vignetting in the corners, with some dirty screen effect towards the center. There's noticeable backlight bleeding in dark scenes, especially on the TV's bottom edge.

10
Picture Quality
Black Uniformity
Std. Dev.
0.223%
Native Std. Dev.
0.421%

The TV has stellar black uniformity. It even looks fabulous with local dimming set to 'Off', which is impressive. With local dimming enabled, there's a bit of blooming around bright objects on dark backgrounds, but it's very minor.

5.4
Picture Quality
Viewing Angle
Color Washout
23°
Color Shift
23°
Brightness Loss
35°
Black Level Raise
24°
Gamma Shift
16°

Sadly, the Hisense U8 has an inadequate viewing angle. The image fades and looks washed out as you move even slightly off-center. This makes it a poor choice for a wide seating arrangement, as anyone sitting off-center sees a degraded image. If you have a wide seating arrangement in a bright room, a TV with an IPS panel, like the LG QNED80 2023, is a better choice.

9.1
Picture Quality
Reflections
Screen Finish
Semi-gloss
Total Reflections
1.8%
Indirect Reflections
0.2%
Calculated Direct Reflections
1.6%

The TV's reflection handling is fantastic. Its finish reduces the impact of reflections enough that this TV can easily handle even very bright rooms. Unlike high-end TVs from competing manufacturers, there's no rainbow smear with bright lights.

7.3
Picture Quality
HDR Native Gradient
100% Black to 50% Gray
8.0
50% Gray to 100% White
6.0
100% Black to 50% Red
6.0
50% Red to 100% Red
8.0
100% Black to 50% Green
8.0
50% Green to 100% Green
8.0
100% Black to 50% Blue
8.0
50% Blue to 100% Blue
6.0

The TV has decent HDR gradient handling. There's some banding in bright grays, bright blues, and dark reds, but other color gradients have minimal banding.

7.9
Picture Quality
Low-Quality Content Smoothing
Smoothing
8.0
Detail Preservation
7.5

This TV has very good low-quality content smoothing. It's great at avoiding macro-blocking in dark scenes and preserves fine details well.

7.5
Picture Quality
Upscaling: Sharpness Processing

The TV has good upscaling capabilities. The resulting image looks sharp overall, with some, but not excessive, blurring. Fine details are preserved well, and text is easy to read. It's good overall, but more expensive models like the Sony X95L offer better upscaling.

Sharpness processing was calibrated for low-resolution or low-bitrate content, with no over-sharpening, with the following setting:

  • Super Resolution: On
  • Sharpness: 10

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

The Hisense U8K uses a BGR (blue-green-red) subpixel layout. For multimedia usage, this doesn't cause any issues, but it causes text clarity issues when you use this TV as a PC monitor. There are easy workarounds for these issues, however, and you can read about them here.

Motion
7.7
Motion
Response Time
80% Response Time
5.7 ms
100% Response Time
13.3 ms

The TV has a good response time at 4k @ 60Hz, but its behavior when VRR is enabled is peculiar. The Hisense's response time tuning is different when the TV's refresh rate is below and above 100Hz; it's more aggressive above 100Hz, leading to a faster overall response time but with more overshoot errors. While this doesn't cause any issues when running at a fixed refresh rate, with VRR enabled, the TV can find itself having its refresh rate hovering around the 100Hz mark, leading to its response time behavior quickly changing as it goes above and below that threshold, which is very noticeable. You can see the two response time behaviors here:

With VRR disabled the TV can do 1080p @ 240Hz without any issues, but it can't do 1080p @ 240Hz with VRR enabled; it instead locks itself at 1080p @ 72Hz.

Here are measurements taken at 1080p @ 240Hz:

9.0
Motion
Flicker-Free
Flicker-Free
No
PWM Dimming Frequency
4,000 Hz

Like most TVs on the market, this TV uses pulse width modulation (PWM) to dim the backlight. Thankfully, it flickers at 4000Hz, which isn't noticeable. There's no flicker if you turn off local dimming and set the backlight to 100 (Max).

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 TV has an optional backlight strobing feature, commonly known as black frame insertion. This feature is meant to reduce persistence blur and improve the appearance of motion. It works well on the Hisense at both 60Hz and 120Hz, leading to a sharp image, but at the cost of some image duplication.

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

The Hisense U8K has an optional motion interpolation feature to interpolate content up to 120 fps. It works well with slower content, like slow panning shots, but there's a lot of artifacting the moment the action ramps up.

7.4
Motion
Stutter
Frame Hold Time @ 24 fps
28.4 ms
Frame Hold Time @ 60 fps
3.4 ms

Due to the Hisense U8K's good response time, there's some stutter when watching 24p content, like movies, as each frame is held longer on screen. It's especially noticeable in slow panning shots. However, the TV's stutter performance when playing 60 fps content is exceptional.

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 Hisense U8K automatically removes judder from any source, ensuring a smooth movie-watching experience.

9.5
Motion
Variable Refresh Rate
Native Refresh Rate
120 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 + Local Dimming Yes

The TV supports all three variable refresh rate (VRR) technologies, and its VRR range caps out at 144Hz. It can also do 1080p @ 240Hz, but not with VRR enabled. With VRR enabled, the TV sets itself to 72Hz with resolution halving when you attempt to run it at 1080p @ 240Hz.

Our TV had strange handshake issues at times when the TV would sometimes reboot and go into a diagnostic mode. This happened when changing some settings, like when enabling or disabling VRR, but also when turning off the PC the TV is connected to. Turning off the TV and then back on when it happens fixes it.

The TV disables HDR when the FreeSync toggle is enabled in the TV's Game Settings menu. In order for VRR and HDR to work simultaneously, FreeSync needs to be disabled on the TV, although this disables VRR for sources that only use FreeSync for VRR, such as older AMD graphic cards.

Inputs
9.4
Inputs
Input Lag
1080p @ 60Hz
14.2 ms
1080p @ 60Hz Outside Game Mode
105.6 ms
1080p @ 120Hz
5.3 ms
1080p @ 144Hz
4.7 ms
1440p @ 60Hz
14.2 ms
1440p @ 120Hz
5.4 ms
1440p @ 144Hz
4.8 ms
4k @ 60Hz
14.2 ms
4k @ 60Hz + 10-Bit HDR
14.2 ms
4k @ 60Hz @ 4:4:4
14.2 ms
4k @ 60Hz Outside Game Mode
105.1 ms
4k @ 60Hz With Interpolation
118.9 ms
4k @ 120Hz
5.4 ms
4k @ 144Hz
5.1 ms
8k @ 60Hz
N/A

The Hisense U8K has extremely low input lag, resulting in a responsive gaming or desktop experience. Unlike the TCL QM8/QM850G QLED, the TV's input lag decreases accordingly as the refresh rate increases. The TV outputs proper chroma 4:4:4 when in Game Mode, so you can have clear text and the fastest possible input lag when using this TV as a PC monitor.

The TV can't do proper 1080p @ 240Hz when VRR is enabled; it instead locks itself to 72Hz with resolution halving, with a measured input lag of 36.1ms. With VRR disabled, the TV does proper 1080p @ 240Hz, with a measured input lag of 3.3ms.

Note that these numbers were measured with the 'High Refresh Rate' mode disabled except at 1080p @ 240Hz, as it locks itself to 'On' at that refresh rate. Enabling the setting at refresh rates lower than 240Hz increases input lag by about 6ms.

9.6
Inputs
Supported Resolutions
Resolution 4k
480p @ 59.94Hz (Widescreen)
Yes
720p @ 59.94Hz
Yes
1080p @ 60Hz @ 4:4:4
Yes
1080p @ 120Hz
Yes
1080p @ 144Hz
Yes
1440p @ 60Hz
Yes (forced resolution required)
1440p @ 120Hz
Yes
1440p @ 144Hz
Yes
4k @ 60Hz
Yes
4k @ 60Hz @ 4:4:4
Yes
4k @ 120Hz
Yes
4k @ 120Hz @ 4:4:4
Yes
4k @ 144Hz
Yes
8k @ 30Hz or 24Hz
No
8k @ 60Hz
No

The TV supports up to 4k @ 144Hz on HDMI ports 3 and 4. The TV does proper 1080p @ 240Hz on HDMI ports 3 and 4, but only with VRR disabled.

The TV supports chroma 4:4:4 at 4k @ 144Hz with Game Mode enabled, so you can simultaneously have the sharpest text and lowest input lag.

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

The TV takes full advantage of the PS5, with 4k @ 120Hz support on HDMI ports 3 and 4 and variable refresh rate (VRR) support. The TV disables HDR when the FreeSync is enabled in the TV's Game Settings menu. For VRR and HDR to work simultaneously, FreeSync needs to be disabled on the TV, with VRR enabled on the PS5. It then works without issue.

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 TV can take full advantage of the Xbox Series X|S consoles, with 4k @ 120Hz support on HDMI ports 3 and 4, as well as variable refresh rate (VRR) support. It's also one of the few TVs on the market that does Dolby Vision at 4k @ 120Hz. The TV disables HDR when the FreeSync is enabled in the TV's Game Settings menu. For VRR and HDR to work simultaneously, FreeSync needs to be disabled on the TV, with VRR enabled on the Xbox console. It then works without issue.

Inputs
Inputs Specifications
HDR10
Yes
HDR10+
Yes
Dolby Vision
Yes
HLG
Yes
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3,4)
HDMI 2.1 Class Bandwidth
Yes (HDMI 3,4)
CEC Yes
HDCP 2.2 Yes (HDMI 1,2,3,4)
ATSC Tuner
3.0 (NEXTGEN TV)
USB 3.0
Yes (1)
Variable Analog Audio Out Yes
Wi-Fi Support Yes (2.4 GHz, 5 GHz)

The TV has HDMI 2.1 bandwidth on HDMI ports 3 and 4, with both supporting up to 4k @ 144Hz. Unfortunately, HDMI 3 is the eARC port, so you lose one HDMI 2.1 port when you plug a soundbar into the TV. It has an ATSC 3.0 TV tuner, so it streams 4k content over-the-air. Its wireless tuner supports the Wi-Fi 6E standard, so it can use the 6GHz spectrum with compatible devices.

Inputs
Input Photos
Inputs
Total Inputs
HDMI 4
USB 2
Digital Optical Audio Out 1
Analog Audio Out 3.5mm 1
Analog Audio Out RCA 0
Component In 0
Composite In 1 (adapter required, not incl.)
Tuner (Cable/Ant) 1
Ethernet 1
DisplayPort 0
IR In 0
Inputs
Audio Passthrough
ARC/eARC Port
eARC
eARC: Dolby Atmos Over Dolby Digital Plus
Yes
eARC: Dolby Digital Plus 7.1
Yes
eARC: LPCM 7.1 Over Dolby MAT
Yes
eARC: Dolby TrueHD 7.1
Yes
eARC: DTS:X Over DTS-HD MA
Yes
eARC: DTS-HD Master Audio 7.1
Yes
eARC: LPCM Channels (Bitstream)
7.1
ARC: Dolby Digital 5.1
Yes
ARC: DTS 5.1
Yes
Optical: Dolby Digital 5.1
Yes
Optical: DTS 5.1
Yes

The TV supports eARC and can pass advanced DTS and Dolby formats from a connected source to your soundbar or sound system without reducing audio quality.

Sound Quality
7.4
Sound Quality
Frequency Response
Low-Frequency Extension
80.00 Hz
Std. Dev. @ 70
2.06 dB
Std. Dev. @ 80
2.11 dB
Std. Dev. @ Max
5.36 dB
Max
90.6 dB SPL
Dynamic Range Compression
4.94 dB

The TV has a satisfactory frequency response. Like on almost all TVs, there's very little bass, although it's alright for a TV. The TV gets loud, but there are many compression artifacts at max volume. The TV is extremely well-balanced at moderate volume, so dialogue is very clear.

7.3
Sound Quality
Distortion
Weighted THD @ 80
0.100
Weighted THD @ Max
2.289
IMD @ 80
0.71%
IMD @ Max
2.85%

This TV has decent distortion performance. There's some audible total harmonic distortion, but mainly at high volume levels; it's not noticeable at moderate volume.

Smart Features
8.0
Smart Features
Interface
Smart OS Google TV
Version 12
Ease of Use
Average
Smoothness
Very Smooth
Time Taken to Select YouTube
1 s
Time Taken to Change Backlight
2 s
Advanced Options
Many

The TV uses version 12 of Google's popular Google TV OS. It's relatively easy to use and especially fast and smooth, with a large selection of apps.

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

Like most TVs on the market, this one has ads throughout the interface, and you can't disable them.

9.0
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 TV has a great selection of streaming apps, with every popular streaming app being present. The interface is very smooth and pleasant to use.

8.0
Smart Features
Remote
Size
Medium
Voice Control
Many Features
CEC Menu Control
Yes
Other Smart Features
No
Remote App Hisense RemoteNOW

The TV comes with a great remote. Like most modern remotes, it lacks a numpad, and there are quick-access buttons to popular streaming services. The remote has a built-in mic, and so does the TV for hands-free voice control, giving you access to Google Assistant and Alexa, so you can ask it to search for content, open apps, ask for the time or the weather, and switch inputs.

Smart Features
TV Controls

There's a button underneath the center of the TV to turn the TV On/Off and switch inputs. There's a switch to turn off the mic built into the TV, which is great if you're concerned about privacy.

Smart Features
In The Box

  • Remote
  • 2x AAA batteries
  • Power cable
  • Quick setup guide

Smart Features
Misc
Power Consumption 56 W
Power Consumption (Max) 210 W
Firmware V0000.01.00R.N0705