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65U8K
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65R646
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What we think

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The PerfectRec TV team Learn more
Updated January 10, 2024·

If you often watch movies in dark rooms and value high contrast and deep blacks, the Hisense U8K outperforms the TCL R646, offering better quality for dark-room viewing. However, it's worth noting that the Hisense U8K typically costs more. For gaming enthusiasts, the Hisense has a slight edge due to its higher gaming performance score and response time, which may result in smoother gameplay. On the other hand, if you're on a tighter budget and still want good overall quality, the TCL R646 is much less expensive and offers decent performance across various content, including movies and sports, but with some compromises in brightness and local dimming compared to the Hisense. Both TVs can handle bright rooms well, but if you're placing the TV in a particularly sunny room, the Hisense U8K has a higher bright-room score, implying better performance under lots of light. Lastly, if you care about having great built-in speakers, the Hisense U8K comes with better audio capabilities, which might influence your decision if you don't plan to use an external sound system. Give Feedback

this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the Hisense U8K (LCD)
  • Best in class for bright room
  • Very good for dark room
  • Very good for movies & TV
  • Very good for news, talk, & other TV
  • Excellent for cartoons & animation
  • Good for upscaling
Advantages of the TCL R646 (LCD)
  • The TCL R646 (LCD) has no clear advantages over the Hisense U8K (LCD).

Key differences

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Picture Quality

8.7
65U8K
65R646
7.9
8.21/10
CONTRAST
8.43/10
9.2/10
COLOR VOLUME SCORE
7.6/10
miniLED FALD
PANEL TYPE
miniLED FALD
VA
PANEL SUB-TYPE
VA
The Hisense U8K (LCD) has very good picture quality, while the TCL R646 (LCD) has good picture quality.

Movies & TV

8.5
65U8K
65R646
7.8
8.21/10
CONTRAST
8.43/10
10.0/10
BLACK UNIFORMITY
6.8/10
7.0/10
UPSCALING
5.9/10
Yes
HDR10 SUPPORT
Yes
Yes
HDR10+ SUPPORT
Yes
Yes
DOLBY VISION SUPPORT
Yes
The Hisense U8K (LCD) is very good for movies & TV, while the TCL R646 (LCD) is good.

Cartoons & Animation

9.1
65U8K
65R646
8.4
8.3/10
COLOR GAMUT SCORE
7.6/10
9.2/10
COLOR VOLUME SCORE
7.6/10
9.1/10
SDR BRIGHTNESS SCORE
9.1/10
8.6/10
COLORS OUT OF THE BOX SCORE
7.2/10
7.0/10
GRAY UNIFORMITY
8.0/10
The Hisense U8K (LCD) is excellent for cartoons & animation, while the TCL R646 (LCD) is very good.

News, Talk, & Other TV

8.6
65U8K
65R646
7.5
9.1/10
SDR BRIGHTNESS SCORE
9.1/10
7.0/10
UPSCALING
5.9/10
The Hisense U8K (LCD) is very good for news, talk, & other TV, while the TCL R646 (LCD) is good.

Bright Room

9.7
65U8K
65R646
8.9
5.3/10
VIEWING ANGLE
5.3/10
9.1/10
SDR BRIGHTNESS SCORE
9.1/10
9.1/10
HDR BRIGHTNESS SCORE
8.3/10
8.9/10
REFLECTIONS SCORE
8.1/10
The Hisense U8K (LCD) is best in class for bright room, while the TCL R646 (LCD) is very good.

Cost

$898
65U8K
65R646
$800
Product image
Product image

$400

$600

$800

$1,000

$1,200

$1,400

The Hisense U8K (LCD) has a price of $898 and the TCL R646 (LCD) costs $800.
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Key similarities

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Sports

6.3
65U8K
65R646
6.6
3.5/10
MOTION PROCESSING
5.3/10
144Hz
REFRESH RATE
120Hz
7.6/10
INPUT LAG SCORE
7.6/10
7.0/10
UPSCALING
5.9/10
9.1/10
SDR BRIGHTNESS SCORE
9.1/10
Yes
HLG SUPPORT
Yes
The TCL R646 (LCD) and Hisense U8K (LCD) are both only fair for sports.

Gaming

8.6
65U8K
65R646
8.2
6.8/10
RESPONSE TIME SCORE
8.0/10
7.6/10
INPUT LAG SCORE
7.6/10
3.5/10
MOTION PROCESSING
5.3/10
90.0/100
GAMING LOCAL DIMMING
70.0/100
9.2/10
GAME HDR BRIGHTNESS SCORE
8.7/10
The Hisense U8K (LCD) and TCL R646 (LCD) are both very good for gaming.

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How the Hisense U8K (LCD) and the TCL R646 (LCD) compare to other TVs

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Spec Comparison

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Hisense U8K (LCD)TCL R646 (LCD)
Hisense U8K (LCD)TCL R646 (LCD)

GENERAL

Price
$898
$800
Brand
HisenseTCL
Release Date
August 2, 2023August 2, 2021
Full name
65U8K65R646
Screen Size
65"65"
Screen Resolution
4K4K

TV FEATURES

Operating System
Google TVAndroid TV
Sound Quality Score
8.3/1010/10
NextGen Ready
YesNo
HDMI Ports
44
Coax Ports
11

DISPLAY QUALITY SCORES

Picture Quality Score
8.7/107.9/10
Bright Room Score
9.7/109/10
Gaming Score
8.6/108.2/10
Movies & TV Score
8.5/107.8/10
Sports Score
6.3/106.6/10

PHYSICAL

Dimensions w/o Stand (H x W x D)
33.1" x 57.2" x 3"33.3" x 56.9" x 3.6"
Dimensions with Stand (H x W)
35.5" x 57.2"35.7" x 56.9"
Weight without Stand
56.4 lbs63.5 lbs
VESA Mount
400 x 400300 x 300

DISPLAY

Color Depth
10 bit10 bit
Black Frame Insertion
YesYes
Auto Low Latency Mode
YesYes
Contrast
8.2/108.4/10
Local Dimming
8/106.5/10

SOUND

Speaker Setup
2.1.22.0
Speaker Power
50 W30 W
Dolby Atmos
YesYes
DTS:X
YesYes, Bypass only

Get a great deal on the Hisense U8K (LCD) or the TCL R646 (LCD)

About Hisense

Hisense, a Chinese TV manufacturer, entered the US market in approximately 2011 and has since acquired TV divisions from various companies such as Toshiba, Sharp, Hitachi, and NEC. Currently ranking as the fourth largest vendor in terms of sales volume, Hisense aims to capture a wide range of TV budget segments. They offer exceptional value with TVs that often outperform their competitors at similar price points, making them a compelling choice for consumers. In the US, they use Google TV as their smart TV software which provides the largest app selection and a very modern user interface, however it is not as user friendly as the software from other vendors.

About TCL

TCL, the highly recognizable TV brand from China, has firmly established itself as the second-largest manufacturer in terms of sales volume. Renowned for striking an impressive balance between affordability, picture quality, and design, TCL TVs deliver a compelling overall package. While they have traditionally excelled in the low-end and midrange TV segments, TCL has recently made remarkable strides in the realm of high-end televisions, introducing impressive models that rival top competitors. Most TCL TVs use Roku software which is very user friendly and easy to use, but they have a few other models that use Google TV which has the largest app selection, but is not as user friendly as Roku.

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Why trust us

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This information was produced and vetted by the PerfectRec TVs team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest TV information and makes it digestible for you.

By the numbers

385
TVs evaluated
33,110
TVs stats compiled
21
Proprietary TVs ratings developed
117,630
Recommendations made
17,645
Consumer hours saved

About the TV team

Joe Golden, Ph.D

CEO and TVs Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.

Jason Lew

Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.

Chandradeep Chowdhury

Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.

Jaime Roldán

TVs Expert
Jaime is a Colombia-based TV expert. He is an electronics engineer with 8 years of experience in the telecom sector and has been making TV recommendations for 12 years.

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