For bright room viewing, the TCL R646 outperforms the Hisense U6K, as it manages reflections better and has higher brightness levels. When it comes to overall picture quality and high dynamic range (HDR) content, the TCL R646 also excels with better scores in contrast, HDR brightness, and black uniformity, which translates into richer and more vibrant colors.
However, if you're a gamer, the Hisense U6K has slightly better input lag, which can be important for fast-paced games. While the TCL has a higher gaming score due to its response time and other factors, the difference in input lag could be noticeable to competitive gamers.
Both TVs are similarly priced and have similar features such as voice commands and support for various HDR formats, although the TCL does offer a slightly more powerful speaker setup. If you value audio and don't plan on using a separate sound system, the TCL R646 might be more appealing.
Ultimately, the TCL R646 appears to be a better choice for a variety of content including movies, sports, and gaming in brighter environments, while the Hisense U6K is slightly better suited for gaming due to lower input lag. Consider the types of content you watch most and the conditions of your viewing environment when making your decision. 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 U6K (LCD)
The Hisense U6K (LCD) has no clear advantages over the TCL R646 (LCD).
Advantages of the TCL R646 (LCD)
Very good for bright room
Very good for gaming
Good for use as monitor
Very good reflections
Key differences
Movies & TV
7.2/10
7.8/10
7.25/10
CONTRAST
8.43/10
5.7/10
BLACK UNIFORMITY
6.8/10
6.6/10
UPSCALING
5.9/10
Yes
HDR10 SUPPORT
Yes
Yes
HDR10+ SUPPORT
Yes
Yes
DOLBY VISION SUPPORT
Yes
The TCL R646 (LCD) and Hisense U6K (LCD) are both good for movies & TV, though the TCL R646 (LCD) is somewhat better.
Sports
6.0/10
6.6/10
3.2/10
MOTION PROCESSING
5.3/10
60Hz
REFRESH RATE
120Hz
8.7/10
INPUT LAG SCORE
7.6/10
6.6/10
UPSCALING
5.9/10
7.6/10
SDR BRIGHTNESS SCORE
9.1/10
Yes
HLG SUPPORT
Yes
The TCL R646 (LCD) and Hisense U6K (LCD) are both only fair for sports, though the TCL R646 (LCD) is somewhat better.
Gaming
6.6/10
8.2/10
6.7/10
RESPONSE TIME SCORE
8.0/10
8.7/10
INPUT LAG SCORE
7.6/10
3.2/10
MOTION PROCESSING
5.3/10
80.0/100
GAMING LOCAL DIMMING
70.0/100
6.9/10
GAME HDR BRIGHTNESS SCORE
8.7/10
The TCL R646 (LCD) is very good for gaming, while the Hisense U6K (LCD) is only fair.
The Hisense U6K has fair response time and very good input lag, which are suitable for casual gaming, while the TCL R646 stands out with very good response time and good input lag, enhancing its performance for more responsive and competitive gaming. Furthermore, the TCL R646's higher refresh rate contributes to a smoother gaming experience compared to the Hisense U6K's lower refresh rate.
Bright Room
6.9/10
8.9/10
5.2/10
VIEWING ANGLE
5.3/10
7.6/10
SDR BRIGHTNESS SCORE
9.1/10
6.8/10
HDR BRIGHTNESS SCORE
8.3/10
6.3/10
REFLECTIONS SCORE
8.1/10
The TCL R646 (LCD) is very good for bright room, while the Hisense U6K (LCD) is only fair.
The TCL R646 outperforms the Hisense U6K in bright room viewing due to its excellent SDR brightness and very good reflection handling, meaning it's better at overcoming glare and maintaining picture quality in well-lit environments. Conversely, the Hisense U6K, with only fair SDR brightness and reflection handling, may struggle more with ambient light, resulting in a less ideal picture in bright rooms.
The TCL R646 (LCD) and Hisense U6K (LCD) both have good picture quality.
Cartoons & Animation
8.1/10
8.4/10
8.3/10
COLOR GAMUT SCORE
7.6/10
7.4/10
COLOR VOLUME SCORE
7.6/10
7.6/10
SDR BRIGHTNESS SCORE
9.1/10
7.9/10
COLORS OUT OF THE BOX SCORE
7.2/10
6.2/10
GRAY UNIFORMITY
8.0/10
The TCL R646 (LCD) and Hisense U6K (LCD) are both very good for cartoons & animation.
The Hisense U6K and TCL R646 both offer a good experience when watching cartoons and animation due to their strong performance in delivering vibrant colors straight out of the box and having a wide color gamut. While both are similarly capable in these aspects, the TCL R646 slightly edges out with better color volume, which can enhance the perception of depth and vividness in cartoons and animations.
News, Talk, & Other TV
7.5/10
7.5/10
7.6/10
SDR BRIGHTNESS SCORE
9.1/10
6.6/10
UPSCALING
5.9/10
The Hisense U6K (LCD) and TCL R646 (LCD) are both good for news, talk, & other TV.
Cost
$601
$600
$300
$400
$500
$600
$700
$800
$900
The Hisense U6K (LCD) has a price of $601 and the TCL R646 (LCD) costs $600.
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How the Hisense U6K (LCD) and the TCL R646 (LCD) compare to other TVs
Spec Comparison
Hisense U6K (LCD)
TCL R646 (LCD)
GENERAL
Price
Price
$601
$600
Brand
Brand
Hisense
TCL
Release Date
Release Date
August 1, 2023
August 1, 2021
Full name
Full name
55U6K
55R646
Screen Size
Screen Size
55"
55"
Screen Resolution
Screen Resolution
4K
4K
Screen Type
Screen Type
LCD
LCD
Screen Sub-type
Screen Sub-type
miniLED FALD VA
miniLED FALD VA
Smart TV
Smart TV
Yes
Yes
TV FEATURES
Operating System
Operating System
Google TV
Android TV
Sound Quality Score
Sound Quality Score
7/10
10/10
NextGen Ready
NextGen Ready
No
No
HDMI Ports
HDMI Ports
4
4
Coax Ports
Coax Ports
1
1
Refresh Rate
Refresh Rate
60Hz
120Hz
Variable Refresh Rate
Variable Refresh Rate
Yes
Yes
HDR Supported formats
HDR Supported formats
HDR10, HDR10+, Dolby Vision, HLG
HDR10, HDR10+, Dolby Vision, HLG
Accessibility
Accessibility
Voice Commands
None
DISPLAY QUALITY SCORES
Picture Quality Score
Picture Quality Score
7.5/10
7.9/10
Bright Room Score
Bright Room Score
7/10
9/10
Gaming Score
Gaming Score
6.7/10
8.2/10
Movies & TV Score
Movies & TV Score
7.3/10
7.8/10
Sports Score
Sports Score
6.1/10
6.6/10
News, Talk, & Other TV Score
News, Talk, & Other TV Score
7.6/10
7.5/10
Cartoons & Animation Score
Cartoons & Animation Score
8.1/10
8.4/10
Use as Monitor Score
Use as Monitor Score
6.8/10
7.3/10
PHYSICAL
Dimensions w/o Stand (H x W x D)
Dimensions w/o Stand (H x W x D)
28.2" x 48.5" x 3"
28.5" x 48.3" x 3.6"
Dimensions with Stand (H x W)
Dimensions with Stand (H x W)
30.2" x 48.5"
30.9" x 48.3"
Weight without Stand
Weight without Stand
30.4 lbs
42.3 lbs
VESA Mount
VESA Mount
400 x 200
300 x 300
DISPLAY
Color Depth
Color Depth
10 bit
10 bit
Black Frame Insertion
Black Frame Insertion
Yes
Yes
Auto Low Latency Mode
Auto Low Latency Mode
Yes
Yes
Contrast
Contrast
7.3/10
8.4/10
Local Dimming
Local Dimming
6/10
6.5/10
Gaming Local Dimming
Gaming Local Dimming
8/100
7/100
Game HDR Brightness Score
Game HDR Brightness Score
6.9/10
8.8/10
SDR Brightness Score
SDR Brightness Score
7.7/10
9.1/10
HDR Brightness Score
HDR Brightness Score
6.8/10
8.4/10
Gray Uniformity
Gray Uniformity
6.2/10
8/10
Black Uniformity
Black Uniformity
5.7/10
6.9/10
Viewing Angle
Viewing Angle
5.2/10
5.3/10
Reflections Score
Reflections Score
6.3/10
8.1/10
Upscaling
Upscaling
6.7/10
5.9/10
Motion Processing
Motion Processing
3.2/10
5.3/10
Color Gamut Score
Color Gamut Score
8.3/10
7.7/10
Color Volume Score
Color Volume Score
7.4/10
7.7/10
Response Time Score
Response Time Score
6.7/10
8.1/10
Input Lag Score
Input Lag Score
8.8/10
7.7/10
Colors Out of the Box Score
Colors Out of the Box Score
7.9/10
7.3/10
Quality Control
Quality Control
5.6/10
7/10
Chroma Subsampling Score
Chroma Subsampling Score
8/10
7.5/10
SOUND
Speaker Setup
Speaker Setup
2.0
2.0
Speaker Power
Speaker Power
20 W
30 W
Dolby Atmos
Dolby Atmos
Yes
Yes
DTS:X
DTS:X
No
Yes, Bypass only
Get a great deal on the Hisense U6K (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.
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.
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