Design
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.
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Design
Uniformity Pictures N/A
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LEARN ABOUT ACCELERATED LONGEVITY TEST
Design
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.
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Design
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.
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Design
Borders 0.35" (0.9 cm)
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Design
Max Thickness 2.76" (7.0 cm)
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7.5 Design
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.
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9.4 Picture Quality
Contrast
Native Contrast
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. For even better contrast, check out the newer Hisense U8/U8N.
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LEARN ABOUT CONTRAST
8.0 Picture Quality
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.
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8.0 Picture Quality
Local Dimming
Backlight
Dimming Zones Count Of Tested TV
Overall, the TV's processing keeps up very well with fast-moving objects, and lighting zone transitions aren't very noticeable, with minimal haloing.
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9.0 Picture Quality
Switching to Game Mode doesn't result in any noticeable difference in dark scene performance, which is great.
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9.2 Picture Quality
Hallway Lights (~1950 cd/m²)
Yellow Skyscraper (~700 cd/m²)
Landscape Pool (~300 cd/m²)
Peak 2% Window
Peak 10% Window
Peak 25% Window
Peak 50% Window
Peak 100% Window
Sustained 2% Window
Sustained 10% Window
Sustained 25% Window
Sustained 50% Window
Sustained 100% Window
Automatic Brightness Limiting (ABL)
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
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LEARN ABOUT HDR BRIGHTNESS
9.3 Picture Quality
Hallway Lights (~1950 cd/m²)
Yellow Skyscraper (~700 cd/m²)
Landscape Pool (~300 cd/m²)
Peak 2% Window
Peak 10% Window
Peak 25% Window
Peak 50% Window
Peak 100% Window
Sustained 2% Window
Sustained 10% Window
Sustained 25% Window
Sustained 50% Window
Sustained 100% Window
Automatic Brightness Limiting (ABL)
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
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8.3 Picture Quality
600 Nit Tracking Delta
1000 Nit Tracking Delta
4000 Nit Tracking Delta
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.
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LEARN ABOUT PQ EOTF TRACKING
9.0 Picture Quality
Real Scene Peak Brightness
Peak 2% Window
Peak 10% Window
Peak 25% Window
Peak 50% Window
Peak 100% Window
Sustained 2% Window
Sustained 10% Window
Sustained 25% Window
Sustained 50% Window
Sustained 100% Window
Automatic Brightness Limiting (ABL)
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
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8.8 Picture Quality
Wide Color Gamut
DCI P3 xy
DCI P3 uv
Rec 2020 xy
Rec 2020 uv
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.
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LEARN ABOUT COLOR GAMUT
9.0 Picture Quality
1,000 cd/m² DCI P3 Coverage ITP
10,000 cd/m² Rec 2020 Coverage ITP
White Luminance
Red Luminance
Green Luminance
Blue Luminance
Cyan Luminance
Magenta Luminance
Yellow Luminance
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.
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LEARN ABOUT COLOR VOLUME
8.7 Picture Quality
White Balance dE
Color dE
Gamma
Color Temperature
Picture Mode
Color Temp Setting
Gamma Setting
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.
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LEARN ABOUT PRE CALIBRATION
9.4 Picture Quality
White Balance dE
Color dE
Gamma
Color Temperature
White Balance Calibration
Color Calibration
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.
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LEARN ABOUT POST CALIBRATION
7.4 Picture Quality
50% Std. Dev.
50% DSE
5% Std. Dev.
5% DSE
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.
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LEARN ABOUT GRAY UNIFORMITY
10 Picture Quality
Std. Dev.
Native Std. Dev.
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.
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LEARN ABOUT BLACK UNIFORMITY
5.4 Picture Quality
Color Washout
Color Shift
Brightness Loss
Black Level Raise
Gamma Shift
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.
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LEARN ABOUT VIEWING ANGLE
9.1 Picture Quality
Screen Finish
Total Reflections
Indirect Reflections
Calculated Direct Reflections
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.
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LEARN ABOUT REFLECTIONS
7.3 Picture Quality
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.
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LEARN ABOUT HDR NATIVE GRADIENT
7.9 Picture Quality
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.
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7.5 Picture Quality
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
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LEARN ABOUT UPSCALING: SHARPNESS PROCESSING
Picture Quality
Subpixel Layout
Type LED
Sub-Type
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.
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7.7 Motion
80% Response Time
100% Response Time
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:
- Below 100
- Above 100
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:
- With VRR set to 'Off'
- With VRR set to 'On' (running at 72Hz)
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LEARN ABOUT RESPONSE TIME
9.0 Motion
Flicker-Free
PWM Dimming Frequency
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).
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LEARN ABOUT FLICKER-FREE
Motion
Optional BFI
Min Flicker For 60 fps
60Hz For 60 fps
120Hz For 120 fps
Min Flicker for 60 fps in Game Mode
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.
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LEARN ABOUT BLACK FRAME INSERTION (BFI)
Motion
Motion Interpolation (30 fps)
Motion Interpolation (60 fps)
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.
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LEARN ABOUT MOTION INTERPOLATION
7.4 Motion
Frame Hold Time @ 24 fps
Frame Hold Time @ 60 fps
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.
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LEARN ABOUT STUTTER
10 Motion
Judder-Free 24p
Judder-Free 24p via 60p
Judder-Free 24p via 60i
Judder-Free 24p via Native Apps
The Hisense U8K automatically removes judder from any source, ensuring a smooth movie-watching experience.
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LEARN ABOUT 24P JUDDER
9.5 Motion
Native Refresh Rate
Variable Refresh Rate
HDMI Forum VRR
FreeSync
G-SYNC Compatible
4k VRR Maximum
4k VRR Minimum
1080p VRR Maximum
1080p VRR Minimum
1440p VRR Maximum
1440p VRR Minimum
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.
Note that on older AMD graphics cards (RX 5000 series and earlier) the TV can't display HDR content while having FreeSync enabled.
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LEARN ABOUT VARIABLE REFRESH RATE
9.4 Inputs
1080p @ 60Hz
1080p @ 60Hz Outside Game Mode
1080p @ 120Hz
1080p @ 144Hz
1440p @ 60Hz
1440p @ 120Hz
1440p @ 144Hz
4k @ 60Hz
4k @ 60Hz + 10-Bit HDR
4k @ 60Hz @ 4:4:4
4k @ 60Hz Outside Game Mode
4k @ 60Hz With Interpolation
4k @ 120Hz
4k @ 144Hz
8k @ 60Hz
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.
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LEARN ABOUT INPUT LAG
9.6 Inputs
Resolution 4k
480p @ 59.94Hz (Widescreen)
720p @ 59.94Hz
1080p @ 60Hz @ 4:4:4
1080p @ 120Hz
1080p @ 144Hz
1440p @ 60Hz
1440p @ 120Hz
1440p @ 144Hz
4k @ 60Hz
4k @ 60Hz @ 4:4:4
4k @ 120Hz
4k @ 120Hz @ 4:4:4
4k @ 144Hz
8k @ 30Hz or 24Hz
8k @ 60Hz
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.
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LEARN ABOUT SUPPORTED RESOLUTIONS
Inputs
Auto Low Latency Mode (ALLM)
4k @ 120Hz
1440p @ 120Hz
1080p @ 120Hz
HDR
VRR
The TV takes full advantage of the PS5, with 4k @ 120Hz support on HDMI ports 3 and 4 and variable refresh rate (VRR) support.
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Inputs
Auto Low Latency Mode (ALLM)
4k @ 120Hz
1440p @ 120Hz
1080p @ 120Hz
HDR
VRR
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.
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Inputs
HDR10
HDR10+
Dolby Vision
HLG
HDMI 2.0 Full Bandwidth
HDMI 2.1 Class Bandwidth
CEC Yes
HDCP 2.2 Yes (HDMI 1,2,3,4)
ATSC Tuner
USB 3.0
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.
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Inputs
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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
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Inputs
ARC/eARC Port
eARC: Dolby Atmos Over Dolby Digital Plus
eARC: Dolby Digital Plus 7.1
eARC: LPCM 7.1 Over Dolby MAT
eARC: Dolby TrueHD 7.1
eARC: DTS:X Over DTS-HD MA
eARC: DTS-HD Master Audio 7.1
eARC: LPCM Channels (Bitstream)
ARC: Dolby Digital 5.1
ARC: DTS 5.1
Optical: Dolby Digital 5.1
Optical: DTS 5.1
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.
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7.4 Sound Quality
Low-Frequency Extension
Std. Dev. @ 70
Std. Dev. @ 80
Std. Dev. @ Max
Max
Dynamic Range Compression
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.
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LEARN ABOUT FREQUENCY RESPONSE
7.3 Sound Quality
Weighted THD @ 80
Weighted THD @ Max
IMD @ 80
IMD @ Max
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.
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LEARN ABOUT DISTORTION
8.0 Smart Features
Smart OS Google TV
Version 12
Ease of Use
Smoothness
Time Taken to Select YouTube
Time Taken to Change Backlight
Advanced Options
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.
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0 Smart Features
Ads
Opt-out
Suggested Content in Home
Opt-out of Suggested Content
Like most TVs on the market, this one has ads throughout the interface, and you can't disable them.
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LEARN ABOUT AD-FREE
9.0 Smart Features
App Selection
App Smoothness
Cast Capable
USB Drive Playback
USB Drive HDR Playback
HDR in Netflix
HDR in YouTube
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.
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8.0 Smart Features
Size
Voice Control
CEC Menu Control
Other Smart Features
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.
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Smart Features
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.
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Smart Features
- Remote
- 2x AAA batteries
- Power cable
- Quick setup guide
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Smart Features
Power Consumption 56 W
Power Consumption (Max) 210 W
Firmware V0000.01.00R.N0705
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