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Updated January 10, 2024·
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
7.8
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
6.6
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
8.2
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
8.9
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.
Cost
$690
$800
$200
$400
$600
$800
$1,000
$1,200
The Hisense U6K (LCD) has a price of $690 and the TCL R646 (LCD) costs $800.
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Key similarities
Picture Quality
7.5
7.9
7.25/10
CONTRAST
8.43/10
7.4/10
COLOR VOLUME SCORE
7.6/10
miniLED FALD
PANEL TYPE
miniLED FALD
VA
PANEL SUB-TYPE
VA
The TCL R646 (LCD) and Hisense U6K (LCD) both have good picture quality.
Cartoons & Animation
8.1
8.4
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
7.5
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.
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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 | |||
$690 | $800 | ||
Brand | |||
Brand | Hisense | TCL | |
Release Date | |||
Release Date | August 2, 2023 | August 2, 2021 | |
Full name | |||
Full name | 65U6K | 65R646 | |
Screen Size | |||
Screen Size | 65" | 65" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
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 | |
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 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 33.1" x 57.1" x 3.1" | 33.3" x 56.9" x 3.6" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 35.3" x 57.1" | 35.7" x 56.9" | |
Weight without Stand | |||
Weight without Stand | 43.4 lbs | 63.5 lbs | |
VESA Mount | |||
VESA Mount | 400 x 300 | 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 | |
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.
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