Products
TCL S535
TCL 6 Series/R646 2021 QLED
Tested using Methodology v1.6
Updated Sep 24, 2025 06:41 PM
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Tested using Methodology v1.11
Updated Sep 24, 2025 06:38 PM
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Resolution4k
TypeLED
Sub-Type
VA
Resolution4k
TypeLED
Sub-Type
VA
Our Verdict
TCL S535
TCL 6 Series/R646 2021 QLED
The TCL 6 Series/R646 2021 QLED is better than the TCL S535. The R646 is a higher-end version, so it has more features like HDMI 2.1 inputs, VRR support, and a 120Hz panel for a superior gaming experience. It uses Mini LED backlighting that lets it get much brighter, especially in HDR, so highlights pop more. They each have decent local dimming features that perform similarly to each other because they raise the black levels in dark scenes to reduce blooming, but that comes at the cost of not having deep blacks.
Variants
- 50S535 (50")
- 55S535 (55")
- 65S535 (65")
- 75S535 (75")
- 55R646 (55")
- 65R646 (65")
- 75R646 (75")
Check Price
50"
50S535
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50"
55"
55S535
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55"
55R646
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Amazon.com
65"
65S535
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Amazon.com
65"
65R646
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Amazon.com
75"
75S535
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Amazon.com
75"
75R646
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
7.7
8.0
480p Input
8.0
3.0
SDR Brightness
6.1
9.0
HDR Brightness
5.1
8.2
Reflections
7.0
8.5
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 300x200
VESA 300x300
Borders
Borders Picture
Borders
0.35" (0.9 cm)
0.35" (0.9 cm)
Thickness
Thickness Picture
Max Thickness
3.43" (8.7 cm)
3.66" (9.3 cm)
Build Quality
7.0
7.5
Build quality picture
Picture Quality
Contrast
9.4
8.9
Contrast Picture
Contrast
7,402 : 1
39,900 : 1
Native Contrast
7,200 : 1
7,778 : 1
Blooming
7.5
Blooming Photo
Lighting Zone Transitions
8.0
Preferred LD Video, Moving Object
Local Dimming
Yes
Yes
Backlight
Full-Array
Full-Array
Dimming Zones Count Of Tested TV
128
Contrast And Dark Details In Game Mode
8.5
Blooming Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
HDR Brightness
5.1
8.2
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
523 cd/m²
Yellow Skyscraper (~700 cd/m²)
377 cd/m²
Landscape Pool (~300 cd/m²)
240 cd/m²
Peak 2% Window
214 cd/m²
660 cd/m²
Peak 10% Window
376 cd/m²
1,051 cd/m²
Peak 25% Window
432 cd/m²
1,085 cd/m²
Peak 50% Window
358 cd/m²
872 cd/m²
Peak 100% Window
337 cd/m²
851 cd/m²
Sustained 2% Window
213 cd/m²
656 cd/m²
Sustained 10% Window
375 cd/m²
1,035 cd/m²
Sustained 25% Window
429 cd/m²
1,069 cd/m²
Sustained 50% Window
356 cd/m²
869 cd/m²
Sustained 100% Window
335 cd/m²
848 cd/m²
Automatic Brightness Limiting (ABL)
0.040
0.025
EOTF
Real Scene Highlight
247 cd/m²
HDR Brightness In Game Mode
5.2
8.2
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
523 cd/m²
Yellow Skyscraper (~700 cd/m²)
393 cd/m²
Landscape Pool (~300 cd/m²)
232 cd/m²
Peak 2% Window
214 cd/m²
639 cd/m²
Peak 10% Window
380 cd/m²
1,038 cd/m²
Peak 25% Window
437 cd/m²
1,094 cd/m²
Peak 50% Window
364 cd/m²
886 cd/m²
Peak 100% Window
343 cd/m²
870 cd/m²
Sustained 2% Window
213 cd/m²
637 cd/m²
Sustained 10% Window
379 cd/m²
1,022 cd/m²
Sustained 25% Window
435 cd/m²
1,084 cd/m²
Sustained 50% Window
362 cd/m²
882 cd/m²
Sustained 100% Window
341 cd/m²
868 cd/m²
Automatic Brightness Limiting (ABL)
0.041
0.024
Game Mode EOTF
Real Scene Highlight
252 cd/m²
PQ EOTF Tracking
8.0
PQ EOTF Graph
600 Nit Tracking Delta
0.0168
1000 Nit Tracking Delta
0.0134
4000 Nit Tracking Delta
0.0134
SDR Brightness
6.1
9.0
Real Scene Peak Brightness
242 cd/m²
800 cd/m²
Peak 2% Window
186 cd/m²
690 cd/m²
Peak 10% Window
325 cd/m²
1,027 cd/m²
Peak 25% Window
372 cd/m²
1,053 cd/m²
Peak 50% Window
309 cd/m²
836 cd/m²
Peak 100% Window
291 cd/m²
804 cd/m²
Sustained 2% Window
184 cd/m²
684 cd/m²
Sustained 10% Window
325 cd/m²
1,019 cd/m²
Sustained 25% Window
370 cd/m²
1,038 cd/m²
Sustained 50% Window
308 cd/m²
833 cd/m²
Sustained 100% Window
290 cd/m²
800 cd/m²
Automatic Brightness Limiting (ABL)
0.041
0.023
Color Gamut
8.5
8.3
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
93.96%
91.53%
DCI P3 uv
96.35%
96.50%
Color Gamut Rec.2020 Picture
Rec 2020 xy
71.50%
69.61%
Rec 2020 uv
78.83%
74.75%
Color Volume
7.8
7.9
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
29.6%
75.4%
2020 Color Volume ITP Picture
10,000 cd/m² Rec 2020 Coverage ITP
24.8%
34.5%
White Luminance
668 cd/m²
Red Luminance
160 cd/m²
Green Luminance
450 cd/m²
Blue Luminance
54 cd/m²
Cyan Luminance
501 cd/m²
Magenta Luminance
207 cd/m²
Yellow Luminance
616 cd/m²
Normalized DCI P3 Coverage ITP
84.1%
Normalized Rec 2020 Coverage ITP
70.6%
Local Dimming
7.0
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
Yes
Yes
Backlight
Full-Array
Full-Array
Pre Calibration
8.0
7.5
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
2.63
3.67
Color dE
2.38
2.51
Gamma
2.22
2.30
Color Temperature
6,085 K
6,239 K
Picture Mode
Movie
Movie
Color Temp Setting
Warm
Warm
Gamma Setting
2.2
2.2
Post Calibration
9.5
9.4
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.20
0.26
Color dE
1.28
1.46
Gamma
2.20
2.20
Color Temperature
6,493 K
6,512 K
White Balance Calibration
11 point
20 point
Color Calibration
Yes
No
Gray Uniformity
6.7
7.8
50% Uniformity Picture
50% Std. Dev.
4.445%
2.499%
50% DSE
0.210%
0.165%
5% Uniformity Picture
5% Std. Dev.
1.490%
0.983%
5% DSE
0.123%
0.102%
Black Uniformity
7.7
9.1
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
1.413%
0.471%
Native Black Uniformity Picture
Native Std. Dev.
0.903%
1.143%
Viewing Angle
5.0
5.4
Viewing Angle Video
Chroma Graph
Color Washout
23°
25°
Hue Graph
Color Shift
20°
33°
Lightness Graph
Brightness Loss
32°
30°
Black Level Raise
12°
13°
Gamma Shift
15°
21°
Reflections
7.0
8.5
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Semi-gloss
Semi-gloss
Total Reflections
6.0%
3.1%
Indirect Reflections
1.0%
0.6%
Calculated Direct Reflections
5.0%
2.5%
Local Dimming In Game Mode
7.0
LD Video, Moving Object
LD Video, Real Content
LD Video, Real Content Side View
Local Dimming
Yes
Backlight
Full-Array
HDR Native Gradient
8.4
8.5
HDR Gradient Picture
100% Black to 50% Gray
6.0
50% Gray to 100% White
10
100% Black to 50% Red
8.0
50% Red to 100% Red
10
100% Black to 50% Green
8.0
50% Green to 100% Green
8.0
100% Black to 50% Blue
8.0
50% Blue to 100% Blue
10
Color Depth
10 Bit
Red (Std. Dev.)
0.086
Green (Std. Dev.)
0.092
Blue (Std. Dev.)
0.075
Gray (Std. Dev.)
0.140
Low-Quality Content Smoothing
8.1
Low-Quality Content Smoothing Picture
Smoothing
9.0
Detail Preservation
6.0
Upscaling: Sharpness Processing
8.0
3.0
Sharpness Picture - 480p
Pixels
Pixels Picture
Subpixel Layout
BGR
Type
LED
LED
Sub-Type
VA
VA
720p Input
8.0
720p Picture
1080p Input
9.0
1080p Picture
4k Input
10
4k Picture
8k Input
0.0
8k Picture
Temporary Image Retention
10
Image Retention Picture
IR after 0 min recovery
0.00%
IR after 2 min recovery
0.00%
IR after 4 min recovery
0.00%
IR after 6 min recovery
0.00%
IR after 8 min recovery
0.00%
IR after 10 min recovery
0.00%
Permanent Burn-In Risk
10
Permanent Burn-In Risk
No
Motion
Response Time
7.9
8.4
Motion Blur Picture
Response Time Chart
80% Response Time
5.2 ms
3.9 ms
100% Response Time
12.1 ms
11.1 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
60 Hz
120 Hz
60Hz For 60 fps
Yes
No
120Hz For 120 fps
N/A
Yes
Min Flicker for 60 fps in Game Mode
60 Hz
120 Hz
Motion Interpolation
Motion Interpolation (30 fps) Picture
Motion Interpolation (30 fps)
Yes
Yes
Motion Interpolation (60 fps) Picture
Motion Interpolation (60 fps)
No
Yes
Stutter
7.2
7.0
Frame Hold Time @ 24 fps
29.6 ms
30.6 ms
Frame Hold Time @ 60 fps
4.6 ms
5.6 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
0.0
7.7
Native Refresh Rate
60 Hz
120 Hz
Variable Refresh Rate
No
Yes
HDMI Forum VRR
No
Yes
FreeSync
No
Yes
G-SYNC Compatible
No
No
4k VRR Maximum
N/A
120 Hz
4k VRR Minimum
No VRR support
48 Hz
1080p VRR Maximum
N/A
120 Hz
1080p VRR Minimum
No VRR support
48 Hz
1440p VRR Maximum
N/A
120 Hz
1440p VRR Minimum
No VRR support
48 Hz
VRR + Local Dimming
Yes
VRR Supported Connectors
No VRR support
Inputs
Input Lag
9.7
9.4
1080p @ 60Hz
11.2 ms
14.2 ms
1080p @ 60Hz Outside Game Mode
111.1 ms
138.8 ms
1080p @ 120Hz
N/A
5.8 ms
1080p @ 144Hz
N/A
1440p @ 60Hz
10.9 ms
14.2 ms
1440p @ 120Hz
N/A
5.8 ms
1440p @ 144Hz
N/A
4k @ 60Hz
10.8 ms
14.4 ms
4k @ 60Hz + 10-Bit HDR
10.8 ms
13.9 ms
4k @ 60Hz @ 4:4:4
10.9 ms
14.2 ms
4k @ 60Hz Outside Game Mode
110.9 ms
138.6 ms
4k @ 60Hz With Interpolation
111.0 ms
131.9 ms
4k @ 120Hz
N/A
5.8 ms
4k @ 144Hz
N/A
8k @ 60Hz
N/A
N/A
1080p with Variable Refresh Rate
N/A
1440p with VRR
N/A
4k with VRR
N/A
8k with VRR
N/A
Supported Resolutions
8.3
9.3
Resolution
4k
4k
480p @ 59.94Hz (Widescreen)
Yes
720p @ 59.94Hz
Yes
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
No
Yes
1080p @ 144Hz
No
1440p @ 60Hz
Yes (forced resolution required)
Yes (forced resolution required)
1440p @ 120Hz
No
Yes
1440p @ 144Hz
No
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
No
Yes
4k @ 120Hz @ 4:4:4
No
4k @ 144Hz
No
8k @ 30Hz or 24Hz
No
No
8k @ 60Hz
No
No
PS5 Compatibility
PS5 Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
No
Yes
1440p @ 120Hz
No
Yes
1080p @ 120Hz
No
Yes
HDR
Yes
Xbox Series X Screenshot
VRR
No
Yes
PS5, 4k @ 120Hz + HDR
No
PS5, 4k @ 60Hz + HDR
Yes
Xbox Series X, 4k @ 120Hz + HDR
No
Xbox Series X, 4k @ 120Hz
No
Yes
Xbox Series X, 4k @ 60Hz + HDR
Yes
Xbox Series X, 1440p @ 120Hz
No
Yes
Xbox Series X, 1080p @ 120Hz
No
Yes
Xbox Series X, Variable Refresh Rate
No
Yes
Xbox Series X|S Compatibility
Xbox Series X Screenshot
Auto Low Latency Mode (ALLM)
Yes
4k @ 120Hz
No
Yes
1440p @ 120Hz
No
Yes
1080p @ 120Hz
No
Yes
HDR
Yes
VRR
No
Yes
Inputs Specifications
HDR10
Yes
Yes
HDR10+
No
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
No
Yes (HDMI 1,2)
CEC
Yes
Yes
HDCP 2.2
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
ATSC Tuner
1.0
USB 3.0
No
No
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
1
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
SD/SDHC
0
Audio Passthrough
ARC/eARC Port
Yes
eARC
eARC: Dolby Atmos Over Dolby Digital Plus
Yes
Yes
eARC: Dolby Digital Plus 7.1
Yes
eARC: LPCM 7.1 Over Dolby MAT
Yes
eARC: Dolby TrueHD 7.1
Yes
ARC
Yes (HDMI 4)
eARC: DTS:X Over DTS-HD MA
Yes
Yes
eARC: DTS-HD Master Audio 7.1
Yes
eARC: LPCM Channels (Bitstream)
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
6.6
7.4
Frequency Response
Low-Frequency Extension
126.99 Hz
80.00 Hz
Std. Dev. @ 70
4.17 dB
4.97 dB
Std. Dev. @ 80
3.85 dB
4.80 dB
Std. Dev. @ Max
4.83 dB
4.39 dB
Max
90.3 dB SPL
95.1 dB SPL
Dynamic Range Compression
3.19 dB
1.87 dB
Distortion
6.0
8.2
Total Harmonic Distortion
Weighted THD @ 80
0.231
0.032
Weighted THD @ Max
1.082
0.385
IMD @ 80
13.99%
0.45%
IMD @ Max
29.89%
1.23%
Smart Features
Interface
8.0
8.0
Smart TV Picture
Smart OS
Roku TV
Google TV
Version
9.3.2
11
Ease of Use
Easy
Average
Smoothness
Very Smooth
Very Smooth
Time Taken to Select YouTube
4 s
2 s
Time Taken to Change Backlight
3 s
2 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
No
Apps and Features
8.0
9.0
Apps Picture
App Selection
Great
Great
App Smoothness
Average
Very Smooth
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
7.0
Remote Picture
Size
Small
Small
Voice Control
Search, Some Other Features
Many Features
CEC Menu Control
Yes
Yes
Other Smart Features
No
No
Remote App
Roku
Android TV
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
44 W
54 W
Power Consumption (Max)
109 W
154 W
Firmware
9.3.2 build 5006-88
V8-T615T02-LF1V023
Check Price
50"
50S535
SEE PRICE
Amazon.com
50"
55"
55S535
SEE PRICE
Amazon.com
55"
55R646
SEE PRICE
Amazon.com
65"
65S535
SEE PRICE
Amazon.com
65"
65R646
SEE PRICE
Amazon.com
75"
75S535
SEE PRICE
Amazon.com
75"
75R646
SEE PRICE
Amazon.com
TCL S535
TCL 6 Series/R646 2021 QLED
Comments
TCL S535 vs TCL 6 Series/R646 2021 QLED: Main Discussion
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