Products
TCL 6 Series/R646 2021 QLED
Hisense U7H
Tested using Methodology v1.11
Updated Sep 24, 2025 06:38 PM
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Tested using Methodology v1.11
Updated Sep 24, 2025 06:46 PM
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Resolution4k
TypeLED
Sub-Type
VA
Resolution4k
TypeLED
Sub-Type
VA
Our Verdict
TCL 6 Series/R646 2021 QLED
Hisense U7H
The TCL 6 Series/R646 2021 QLED is better than the Hisense U7H. The TCL delivers much better picture quality overall, with better uniformity, higher contrast, and better reflection handling, so it looks better in both bright and dark rooms. The TCL also has a much faster response time, making it a better choice for gamers, as there's less blur behind fast-moving objects. The TCL also has much better sound quality, with less distortion and better frequency response, and it gets significantly louder than the Hisense.
Variants
- 55R646 (55")
- 65R646 (65")
- 75R646 (75")
- 55U7H (55")
- 65U7H (65")
- 75U7H (75")
- 85U7H (85")
Check Price
55"
55R646
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55"
55U7H
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65"
65R646
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65"
65U7H
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75"
75R646
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75"
75U7H
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85"
85"
85U7H
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
8.0
7.5
Low-Quality Content Smoothing
8.1
4.8
Upscaling: Sharpness Processing
3.0
7.5
Pre Calibration
7.5
5.5
Full Comparison
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Month 30
50% Gray
Month 30
50% Gray
Longevity Graph
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 300x300
VESA 300x200
Borders
Borders Picture
Borders
0.35" (0.9 cm)
0.39" (1.0 cm)
Thickness
Thickness Picture
Max Thickness
3.66" (9.3 cm)
3.54" (9.0 cm)
Build Quality
7.5
7.5
Build quality picture
Picture Quality
Contrast
8.9
8.3
Contrast Picture
Contrast
39,900 : 1
28,157 : 1
Native Contrast
7,778 : 1
4,891 : 1
Blooming
7.5
7.5
Blooming Photo
Lighting Zone Transitions
8.0
6.5
Preferred LD Video, Moving Object
Local Dimming
Yes
Yes
Backlight
Full-Array
Full-Array
Dimming Zones Count Of Tested TV
128
90
Contrast And Dark Details In Game Mode
8.5
8.0
Blooming Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
HDR Brightness
8.2
7.6
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
523 cd/m²
460 cd/m²
Yellow Skyscraper (~700 cd/m²)
377 cd/m²
393 cd/m²
Landscape Pool (~300 cd/m²)
240 cd/m²
156 cd/m²
Peak 2% Window
660 cd/m²
687 cd/m²
Peak 10% Window
1,051 cd/m²
891 cd/m²
Peak 25% Window
1,085 cd/m²
999 cd/m²
Peak 50% Window
872 cd/m²
824 cd/m²
Peak 100% Window
851 cd/m²
575 cd/m²
Sustained 2% Window
656 cd/m²
683 cd/m²
Sustained 10% Window
1,035 cd/m²
885 cd/m²
Sustained 25% Window
1,069 cd/m²
989 cd/m²
Sustained 50% Window
869 cd/m²
821 cd/m²
Sustained 100% Window
848 cd/m²
574 cd/m²
Automatic Brightness Limiting (ABL)
0.025
0.029
HDR Brightness In Game Mode
8.2
7.8
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
523 cd/m²
465 cd/m²
Yellow Skyscraper (~700 cd/m²)
393 cd/m²
458 cd/m²
Landscape Pool (~300 cd/m²)
232 cd/m²
172 cd/m²
Peak 2% Window
639 cd/m²
683 cd/m²
Peak 10% Window
1,038 cd/m²
887 cd/m²
Peak 25% Window
1,094 cd/m²
991 cd/m²
Peak 50% Window
886 cd/m²
819 cd/m²
Peak 100% Window
870 cd/m²
572 cd/m²
Sustained 2% Window
637 cd/m²
679 cd/m²
Sustained 10% Window
1,022 cd/m²
879 cd/m²
Sustained 25% Window
1,084 cd/m²
983 cd/m²
Sustained 50% Window
882 cd/m²
816 cd/m²
Sustained 100% Window
868 cd/m²
570 cd/m²
Automatic Brightness Limiting (ABL)
0.024
0.029
PQ EOTF Tracking
8.0
8.9
PQ EOTF Graph
600 Nit Tracking Delta
0.0168
0.0068
1000 Nit Tracking Delta
0.0134
0.0068
4000 Nit Tracking Delta
0.0134
0.0069
SDR Brightness
9.0
8.5
Real Scene Peak Brightness
800 cd/m²
497 cd/m²
Peak 2% Window
690 cd/m²
679 cd/m²
Peak 10% Window
1,027 cd/m²
822 cd/m²
Peak 25% Window
1,053 cd/m²
906 cd/m²
Peak 50% Window
836 cd/m²
743 cd/m²
Peak 100% Window
804 cd/m²
513 cd/m²
Sustained 2% Window
684 cd/m²
675 cd/m²
Sustained 10% Window
1,019 cd/m²
812 cd/m²
Sustained 25% Window
1,038 cd/m²
895 cd/m²
Sustained 50% Window
833 cd/m²
738 cd/m²
Sustained 100% Window
800 cd/m²
511 cd/m²
Automatic Brightness Limiting (ABL)
0.023
0.029
Color Gamut
8.3
8.4
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
91.53%
93.15%
DCI P3 uv
96.50%
95.66%
Color Gamut Rec.2020 Picture
Rec 2020 xy
69.61%
69.58%
Rec 2020 uv
74.75%
76.91%
Color Volume
7.9
8.1
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
75.4%
69.6%
2020 Color Volume ITP Picture
10,000 cd/m² Rec 2020 Coverage ITP
34.5%
35.9%
White Luminance
668 cd/m²
673 cd/m²
Red Luminance
160 cd/m²
143 cd/m²
Green Luminance
450 cd/m²
492 cd/m²
Blue Luminance
54 cd/m²
52 cd/m²
Cyan Luminance
501 cd/m²
529 cd/m²
Magenta Luminance
207 cd/m²
185 cd/m²
Yellow Luminance
616 cd/m²
631 cd/m²
Pre Calibration
7.5
5.5
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
3.67
6.20
Color dE
2.51
3.73
Gamma
2.30
2.17
Color Temperature
6,239 K
6,492 K
Picture Mode
Movie
Theater Night
Color Temp Setting
Warm
Low
Gamma Setting
2.2
2.2
Post Calibration
9.4
9.0
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.26
1.23
Color dE
1.46
1.69
Gamma
2.20
2.20
Color Temperature
6,512 K
6,478 K
White Balance Calibration
20 point
20 point
Color Calibration
No
Yes
Gray Uniformity
7.8
7.4
50% Uniformity Picture
50% Std. Dev.
2.499%
2.142%
50% DSE
0.165%
0.192%
5% Uniformity Picture
5% Std. Dev.
0.983%
1.327%
5% DSE
0.102%
0.120%
Black Uniformity
9.1
9.1
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
0.471%
0.630%
Native Black Uniformity Picture
Native Std. Dev.
1.143%
0.669%
Viewing Angle
5.4
5.5
Viewing Angle Video
Chroma Graph
Color Washout
25°
26°
Hue Graph
Color Shift
33°
23°
Lightness Graph
Brightness Loss
30°
36°
Black Level Raise
13°
23°
Gamma Shift
21°
17°
Reflections
8.5
7.5
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Semi-gloss
Semi-gloss
Total Reflections
3.1%
5.0%
Indirect Reflections
0.6%
0.6%
Calculated Direct Reflections
2.5%
4.4%
HDR Native Gradient
8.5
6.8
HDR Gradient Picture
100% Black to 50% Gray
6.0
4.0
50% Gray to 100% White
10
8.0
100% Black to 50% Red
8.0
6.0
50% Red to 100% Red
10
10
100% Black to 50% Green
8.0
6.0
50% Green to 100% Green
8.0
8.0
100% Black to 50% Blue
8.0
6.0
50% Blue to 100% Blue
10
6.0
Low-Quality Content Smoothing
8.1
4.8
Low-Quality Content Smoothing Picture
Smoothing
9.0
3.0
Detail Preservation
6.0
9.0
Upscaling: Sharpness Processing
3.0
7.5
Sharpness Picture - 480p
Pixels
Pixels Picture
Subpixel Layout
BGR
BGR
Type
LED
LED
Sub-Type
VA
VA
Motion
Response Time
8.4
6.8
Motion Blur Picture
Response Time Chart
80% Response Time
3.9 ms
7.6 ms
100% Response Time
11.1 ms
13.6 ms
Flicker-Free
9.9
9.9
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
960 Hz
960 Hz
Black Frame Insertion (BFI)
BFI Picture
BFI Frequency Picture
Optional BFI
Yes
Yes
Min Flicker For 60 fps
120 Hz
60 Hz
60Hz For 60 fps
No
Yes
120Hz For 120 fps
Yes
Yes
Min Flicker for 60 fps in Game Mode
120 Hz
60 Hz
Motion Interpolation
Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
Yes
Yes
Motion Interpolation (60 fps) Picture
Motion Interpolation (60 fps)
Yes
Yes
Stutter
7.0
7.5
Frame Hold Time @ 24 fps
30.6 ms
28.1 ms
Frame Hold Time @ 60 fps
5.6 ms
3.1 ms
24p Judder
10
10
Judder-Free 24p
Yes
Yes
Judder-Free 24p via 60p
Yes
Yes
Judder-Free 24p via 60i
Yes
Yes
Judder-Free 24p via Native Apps
Yes
Yes
Variable Refresh Rate
7.7
9.4
Native Refresh Rate
120 Hz
120 Hz
Variable Refresh Rate
Yes
Yes
HDMI Forum VRR
Yes
Yes
FreeSync
Yes
Yes
G-SYNC Compatible
No
Yes
4k VRR Maximum
120 Hz
120 Hz
4k VRR Minimum
48 Hz
< 20 Hz
1080p VRR Maximum
120 Hz
120 Hz
1080p VRR Minimum
48 Hz
< 20 Hz
1440p VRR Maximum
120 Hz
120 Hz
1440p VRR Minimum
48 Hz
< 20 Hz
VRR + Local Dimming
Yes
Yes
Inputs
Input Lag
9.4
9.4
1080p @ 60Hz
14.2 ms
15.5 ms
1080p @ 60Hz Outside Game Mode
138.8 ms
121.7 ms
1080p @ 120Hz
5.8 ms
7.7 ms
1080p @ 144Hz
N/A
N/A
1440p @ 60Hz
14.2 ms
22.7 ms
1440p @ 120Hz
5.8 ms
7.7 ms
1440p @ 144Hz
N/A
N/A
4k @ 60Hz
14.4 ms
15.5 ms
4k @ 60Hz + 10-Bit HDR
13.9 ms
15.6 ms
4k @ 60Hz @ 4:4:4
14.2 ms
15.5 ms
4k @ 60Hz Outside Game Mode
138.6 ms
121.6 ms
4k @ 60Hz With Interpolation
131.9 ms
115.2 ms
4k @ 120Hz
5.8 ms
7.6 ms
4k @ 144Hz
N/A
N/A
8k @ 60Hz
N/A
N/A
Supported Resolutions
9.3
9.6
Resolution
4k
4k
480p @ 59.94Hz (Widescreen)
Yes
Yes
720p @ 59.94Hz
Yes
Yes
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 144Hz
No
No
1440p @ 60Hz
Yes (forced resolution required)
Yes (forced resolution required)
1440p @ 120Hz
Yes
Yes
1440p @ 144Hz
No
No
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
Yes
Yes
4k @ 120Hz @ 4:4:4
No
Yes
4k @ 144Hz
No
No
8k @ 30Hz or 24Hz
No
No
8k @ 60Hz
No
No
PS5 Compatibility
PS5 Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
Yes
Xbox Series X|S Compatibility
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
HDR
Yes
Yes
VRR
Yes
Yes
Inputs Specifications
HDR10
Yes
Yes
HDR10+
Yes
Yes
Dolby Vision
Yes
Yes
HLG
Yes
Yes
HDMI 2.0 Full Bandwidth
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
HDMI 2.1 Class Bandwidth
Yes (HDMI 1,2)
Yes (HDMI 3,4)
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
ATSC Tuner
1.0
3.0 (NEXTGEN TV)
USB 3.0
No
Yes (1)
Variable Analog Audio Out
Yes
Yes
Wi-Fi Support
Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz)
Input Photos
Side Inputs Picture
Rear Inputs Picture
Total Inputs
HDMI
4
4
USB
2
2
Digital Optical Audio Out
1
1
Analog Audio Out 3.5mm
1
1
Analog Audio Out RCA
0
0
Component In
0
0
Composite In
1 (adapter required, not incl.)
1 (adapter required, not incl.)
Tuner (Cable/Ant)
1
1
Ethernet
1
1
DisplayPort
0
0
IR In
0
0
Audio Passthrough
ARC/eARC Port
eARC
eARC
eARC: Dolby Atmos Over Dolby Digital Plus
Yes
Yes
eARC: Dolby Digital Plus 7.1
Yes
Yes
eARC: LPCM 7.1 Over Dolby MAT
Yes
Yes
eARC: Dolby TrueHD 7.1
Yes
Yes
eARC: DTS:X Over DTS-HD MA
Yes
Yes
eARC: DTS-HD Master Audio 7.1
Yes
Yes
eARC: LPCM Channels (Bitstream)
2.0
2.0
ARC: Dolby Digital 5.1
Yes
Yes
ARC: DTS 5.1
Yes
Yes
Optical: Dolby Digital 5.1
Yes
Yes
Optical: DTS 5.1
Yes
Yes
Sound Quality
Frequency Response
7.4
6.2
Frequency Response
Low-Frequency Extension
80.00 Hz
95.14 Hz
Std. Dev. @ 70
4.97 dB
2.73 dB
Std. Dev. @ 80
4.80 dB
4.23 dB
Std. Dev. @ Max
4.39 dB
6.69 dB
Max
95.1 dB SPL
86.5 dB SPL
Dynamic Range Compression
1.87 dB
5.16 dB
Distortion
8.2
7.5
Total Harmonic Distortion
Weighted THD @ 80
0.032
0.137
Weighted THD @ Max
0.385
0.295
IMD @ 80
0.45%
1.97%
IMD @ Max
1.23%
3.42%
Smart Features
Interface
8.0
8.0
Smart TV Picture
Smart OS
Google TV
Google TV
Version
11
11
Ease of Use
Average
Average
Smoothness
Very Smooth
Very Smooth
Time Taken to Select YouTube
2 s
2 s
Time Taken to Change Backlight
2 s
3 s
Advanced Options
Many
Many
Ad-Free
0.0
0.0
Ads Picture
Ads
Yes
Yes
Opt-out
No
No
Suggested Content in Home
Yes
Yes
Opt-out of Suggested Content
No
Yes
Apps and Features
9.0
9.0
Apps Picture
App Selection
Great
Great
App Smoothness
Very Smooth
Average
Cast Capable
Yes
Yes
USB Drive Playback
Yes
Yes
USB Drive HDR Playback
Yes
Yes
HDR in Netflix
Yes
Yes
HDR in YouTube
Yes
Yes
Remote
7.0
8.0
Remote Picture
Size
Small
Medium
Voice Control
Many Features
Many Features
CEC Menu Control
Yes
Yes
Other Smart Features
No
No
Remote App
Android TV
Hisense RemoteNOW
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
54 W
68 W
Power Consumption (Max)
154 W
213 W
Firmware
V8-T615T02-LF1V023
V0010.01.00M.M0809
Check Price
55"
55R646
SEE PRICE
Amazon.com
55"
55U7H
SEARCH
Amazon.com
65"
65R646
SEE PRICE
Amazon.com
65"
65U7H
SEE PRICE
Amazon.com
75"
75R646
SEE PRICE
Amazon.com
75"
75U7H
SEE PRICE
Amazon.com
85"
85"
85U7H
SEE PRICE
Amazon.com
TCL 6 Series/R646 2021 QLED
Hisense U7H
Comments
TCL 6 Series/R646 2021 QLED vs Hisense U7H: Main Discussion
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