Hisense U6/U6K Review (55U6K, 65U6K, 75U6K) (2024)

Curved No

The Hisense U6K has a simple design with thin bezels on three sides. The bottom bezel is slightly thicker but doesn't stand out much when watching TV. On its back, the TV has visible screws (shown here) around its border, which looks a bit cheap overall.

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Uniformity Pictures N/A

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Wall Mount VESA 400x300

The back has a flat metallic top part and a thicker plastic housing on the bottom half. Most of the inputs are side-facing and aren't set into the TV, so they're easy to access unless you have the TV mounted flush against the wall. Unfortunately, the TV doesn't have any clips or channels for cable management.

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Borders 0.41" (1.0 cm)

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Max Thickness 3.04" (7.7 cm)

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The Hisense U6K has alright build quality. There's a bit of flex in the plastic portion of the back of the TV, but this isn't uncommon and won't cause any issues. The feet are sturdy and support the TV well, but there's some wobble, and it takes a few seconds to settle once it starts.

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Contrast

Native Contrast

The Hisense U6K has an excellent contrast ratio with local dimming enabled, leading to deep blacks in a dark room, even when bright highlights are shown on the screen. With local dimming disabled, the TV's contrast ratio is decent, but blacks are raised and appear washed out when bright highlights are present. For better contrast, check out the 2024 Hisense U6/U6N.

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The Hisense U6K has decent blooming performance. There's some visible blooming around bright highlights or in dark areas when they're next to brighter ones.

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Local Dimming

Backlight

Dimming Zones Count Of Tested TV

The TV has sub-par lighting zone transitions. The leading edge of bright moving objects is visibly dimmer. For fast-moving small objects, the objects are almost completely obscured due to how dim they get in the transition.

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Switching to Game Mode with VRR 'Off' makes no noticeable difference in dark scene performance. Game Mode disables local dimming if VRR is enabled, leading to worse contrast and black uniformity, but with no blooming or zone transitions.

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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)

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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)

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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, as all scenes are slightly overbrightened, especially in dark scenes. There's a slow roll-off when content approaches the TV's peak brightness, preserving bright details.

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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)

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Wide Color Gamut

DCI P3 xy

DCI P3 uv

Rec 2020 xy

Rec 2020 uv

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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 color volume of this TV is decent. It displays a wide range of colors at all luminance levels, and dark saturated colors are displayed well thanks to the TV's excellent contrast.

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White Balance dE

Color dE

Gamma

Color Temperature

Picture Mode

Color Temp Setting

Gamma Setting

The Hisense U6K has impressive accuracy in SDR even before calibrating it. Gamma is very close to the 2.2 target for a moderately lit room, and the color temperature is nearly perfect. Color accuracy is great overall, and the white balance is very good: there are some slight accuracy errors here and there, but nothing dramatic. Some colors, like saturated yellows, blues, and greens, have more accuracy errors than others, but this isn't noticeable in actual usage.

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White Balance dE

Color dE

Gamma

Color Temperature

White Balance Calibration

Color Calibration

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50% Std. Dev.

50% DSE

5% Std. Dev.

5% DSE

The TV has decent gray uniformity. The backlight is visible on large areas of bright, uniform color, which is distracting when watching sports or browsing the web. Uniformity is better in dark scenes, although the sides of the screen are lighter than its center.

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Std. Dev.

Native Std. Dev.

The TV has okay black uniformity. With local dimming disabled, the black uniformity is poor, as the entire screen is blue, with lighter bands near the TV's edges. Uniformity is much better with local dimming set to 'High', but it's only decent; the screen has a blue tint, and there's noticeable blooming around bright highlights.

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Color Washout

Color Shift

Brightness Loss

Black Level Raise

Gamma Shift

Sadly, the TV 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.

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Screen Finish

Total Reflections

Indirect Reflections

Calculated Direct Reflections

This TV has decent reflection handling. It handles moderate amounts of light very well and, combined with its good peak brightness, you won't have problems using it in most living rooms. However, don't place it immediately opposite bright lights or windows, as it struggles with handling that type of glare.

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100% Black to 50% Gray

50% Gray to 100% White

100% Black to 50% Red

50% Red to 100% Red

100% Black to 50% Green

50% Green to 100% Green

100% Black to 50% Blue

50% Blue to 100% Blue

The TV has good HDR gradient handling. There's some banding in dark grays and reds, as well as in bright greens. Other color gradients have minimal banding.

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Smoothing

Detail Preservation

Unfortunately, this TV's processing with low-quality content is poor. It just doesn't smooth out macro-blocking and pixelization well. You can see what it looks like with boosted exposure here.

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Subpixel Layout

Type LED

Sub-Type

The Hisense U6K 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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80% Response Time

100% Response Time

The Hisense U6K has a good response time, and motion is fluid and smooth for the most part, with just a short blur trail behind fast-moving objects. Like many TVs, it's noticeably slower when coming out of a dark state, so there's some black smear in shadow details.

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Flicker-Free

PWM Dimming Frequency

The Hisense U6K uses pulse width modulation (PWM) to dim its backlight. It flickers at 480Hz in every picture mode except FILMMAKER MODE, where it flickers at 600Hz. The TV's flicker frequency is high enough that it won't be distracting unless you're sensitive to flicker.

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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. With it enabled, the TV flickers at 60Hz, and it isn't very effective as it causes image duplication and even some smearing.

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Motion Interpolation (30 fps)

Motion Interpolation (60 fps)

The optional motion interpolation feature on this TV is poor overall. It struggles in most scenes, and there are noticeable artifacts around any fast-moving areas, characters, or objects.

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Frame Hold Time @ 24 fps

Frame Hold Time @ 60 fps

The TV's good response time results in an overall adequate stutter performance. There's some noticeable stutter in slow-panning shots in 24p content, like movies. The TV's stutter performance is exceptional with 60 fps content.

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Judder-Free 24p

Judder-Free 24p via 60p

Judder-Free 24p via 60i

Judder-Free 24p via Native Apps

The TV removes judder from most sources automatically, without the need for any additional motion settings. However, it can't remove judder from 60Hz interlaced sources. Many cable boxes support either 720p or 1080i, so if that's your case, make sure you select 720p instead for a judder-free experience.

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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 No

The Hisense U6K supports every VRR technology, which is great for gamers. The refresh rate range is narrow, so its usefulness is limited. It also doesn't support low framerate compensation in that range, so you'll see tearing if your game's frame rate drops below 48Hz.

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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

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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 most common resolutions. It displays chroma 4:4:4 signals properly at all resolutions except 1080p @ 120Hz, which is essential for clear text from a desktop PC. While the TV seems to support 1080p @ 120Hz, setting it to that resolution results in very high input lag, skipped frames, and a muddier image overall. If you'd like a TV with a faster 120Hz refresh rate, look up the similarly priced TCL Q5/Q550G QLED.

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Auto Low Latency Mode (ALLM)

4k @ 120Hz

1440p @ 120Hz

1080p @ 120Hz

HDR

VRR

This TV can't take full advantage of the PS5. It supports a few advanced features, including HDR and VRR, but it's limited to a 60Hz refresh rate. While 1080p @ 120Hz does show up as available on the console, running the TV at that resolution results in frame skipping, slow input lag, and a muddier image overall. As such, it's best suited for gamers who prefer the 'Graphics' preset in their games and not competitive gamers who prefer 'Performance' presets with higher frame rates.

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Auto Low Latency Mode (ALLM)

4k @ 120Hz

1440p @ 120Hz

1080p @ 120Hz

HDR

VRR

This TV can't take full advantage of the Xbox Series X|S. It supports a few advanced features, including HDR and VRR, but it's limited to a 60Hz refresh rate. While 1080p @ 120Hz does show up as available on the console, running the TV at that resolution results in frame skipping, slow input lag, and a muddier image overall. As such, it's best suited for gamers who prefer the 'Graphics' preset in their games over higher frame rates.

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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)

This TV is limited to HDMI 2.0 bandwidth on all four HDMI ports.

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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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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

Unfortunately, this TV can't passthrough some 7.1 audio formats like DTS:X or DTS-HD MA, and is instead limited to 5.1 channel audio. For the best audio experience, connecting your external source directly to your soundbar or home theater receiver is best.

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Low-Frequency Extension

Std. Dev. @ 70

Std. Dev. @ 80

Std. Dev. @ Max

Max

Dynamic Range Compression

The TV's frequency response is okay overall. It has a very high low-frequency extension (LFE), meaning there's very little thump or rumble. Above the LFE, the frequency response is well-balanced, ensuring that most dialogue sounds crisp and clear. It gets moderately loud, but there's significant compression at max volume.

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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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Smart OS Google TV

Version 11

Ease of Use

Smoothness

Time Taken to Select YouTube

Time Taken to Change Backlight

Advanced Options

The Hisense U6K uses version 11 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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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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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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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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There's a button underneath the center of the TV to turn the TV On/Off and switch inputs. There's another button, seen here, to turn off the mic built into the TV if you're concerned about privacy.

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Power Consumption 70 W

Power Consumption (Max) 187 W

Firmware V0000.01.00S.N0615

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