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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Comments
LG C1 OLED vs TCL 6 Series/R646 2021 QLED
Side-by-Side Comparison
Products
LG C1 OLED
TCL 6 Series/R646 2021 QLED
Tested using Methodology v1.11
Updated Apr 16, 2025 03:53 PM
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Amazon.comTested using Methodology v1.11
Updated Apr 16, 2025 03:21 PM
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Walmart.com
Resolution4k
TypeOLED
Sub-TypeWOLED
Resolution4k
TypeLED
Sub-TypeVA
Variants
- OLED48C1PUB (48")
- OLED55C1PUB (55")
- OLED65C1PUB (65")
- OLED77C1PUB (77")
- OLED83C1PUA (83")
- 55R646 (55")
- 65R646 (65")
- 75R646 (75")
Our Verdict
LG C1 OLED
TCL 6 Series/R646 2021 QLED
The LG C1 OLED is much better than the TCL 6 Series/R646 2021 QLED. The LG has a near-infinite contrast ratio, resulting in deep inky blacks in a dark room with no distracting blooming around bright objects. The LG also has much better motion handling than the TCL because it has a near-instantaneous response time. The TCL gets a lot brighter in SDR, meaning it can handle more glare. However, it has worse picture quality overall.
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48"
OLED48C1PUB
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55"
OLED55C1PUB
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55R646
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OLED65C1PUB
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65R646
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75"
75R646
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OLED77C1PUB
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83"
OLED83C1PUA
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Main Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
8.4
8.0
Pre Calibration
4.5
7.5
Upscaling: Sharpness Processing
6.0
3.0
Viewing Angle
8.9
5.4
Contrast
10
8.9
SDR Brightness
6.7
9.0
Full Comparison
Design
Style
Design Picture
Curved
No
No
Accelerated Longevity Test
Uniformity Pictures
Month 26
50% Gray
Month 26
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
1.85" (4.7 cm)
3.66" (9.3 cm)
Build Quality
9.0
7.5
Build quality picture
Picture Quality
Contrast
10
8.9
Contrast Picture
Contrast
Inf : 1
39,900 : 1
Native Contrast
Inf : 1
7,778 : 1
Blooming
10
7.5
Blooming Photo
Lighting Zone Transitions
10
8.0
Preferred LD Video, Moving Object
Local Dimming
No
Yes
Backlight
No Backlight
Full-Array
Dimming Zones Count Of Tested TV
8,294,400
128
Contrast And Dark Details In Game Mode
9.5
8.5
Blooming Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
HDR Brightness
6.8
8.2
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
639 cd/m²
523 cd/m²
Yellow Skyscraper (~700 cd/m²)
369 cd/m²
377 cd/m²
Landscape Pool (~300 cd/m²)
142 cd/m²
240 cd/m²
Peak 2% Window
751 cd/m²
660 cd/m²
Peak 10% Window
747 cd/m²
1,051 cd/m²
Peak 25% Window
412 cd/m²
1,085 cd/m²
Peak 50% Window
277 cd/m²
872 cd/m²
Peak 100% Window
131 cd/m²
851 cd/m²
Sustained 2% Window
729 cd/m²
656 cd/m²
Sustained 10% Window
725 cd/m²
1,035 cd/m²
Sustained 25% Window
392 cd/m²
1,069 cd/m²
Sustained 50% Window
263 cd/m²
869 cd/m²
Sustained 100% Window
125 cd/m²
848 cd/m²
Automatic Brightness Limiting (ABL)
0.109
0.025
HDR Brightness In Game Mode
6.9
8.2
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
643 cd/m²
523 cd/m²
Yellow Skyscraper (~700 cd/m²)
378 cd/m²
393 cd/m²
Landscape Pool (~300 cd/m²)
135 cd/m²
232 cd/m²
Peak 2% Window
723 cd/m²
639 cd/m²
Peak 10% Window
728 cd/m²
1,038 cd/m²
Peak 25% Window
402 cd/m²
1,094 cd/m²
Peak 50% Window
284 cd/m²
886 cd/m²
Peak 100% Window
162 cd/m²
870 cd/m²
Sustained 2% Window
701 cd/m²
637 cd/m²
Sustained 10% Window
716 cd/m²
1,022 cd/m²
Sustained 25% Window
388 cd/m²
1,084 cd/m²
Sustained 50% Window
269 cd/m²
882 cd/m²
Sustained 100% Window
128 cd/m²
868 cd/m²
Automatic Brightness Limiting (ABL)
0.106
0.024
PQ EOTF Tracking
9.5
8.0
PQ EOTF Graph
600 Nit Tracking Delta
0.0057
0.0168
1000 Nit Tracking Delta
0.0029
0.0134
4000 Nit Tracking Delta
0.0028
0.0134
SDR Brightness
6.7
9.0
Real Scene Peak Brightness
302 cd/m²
800 cd/m²
Peak 2% Window
412 cd/m²
690 cd/m²
Peak 10% Window
414 cd/m²
1,027 cd/m²
Peak 25% Window
376 cd/m²
1,053 cd/m²
Peak 50% Window
314 cd/m²
836 cd/m²
Peak 100% Window
137 cd/m²
804 cd/m²
Sustained 2% Window
393 cd/m²
684 cd/m²
Sustained 10% Window
395 cd/m²
1,019 cd/m²
Sustained 25% Window
358 cd/m²
1,038 cd/m²
Sustained 50% Window
299 cd/m²
833 cd/m²
Sustained 100% Window
131 cd/m²
800 cd/m²
Automatic Brightness Limiting (ABL)
0.070
0.023
Color Gamut
8.6
8.3
Wide Color Gamut
Yes
Yes
Color Gamut DCI-P3 Picture
DCI P3 xy
96.33%
91.53%
DCI P3 uv
98.83%
96.50%
Color Gamut Rec.2020 Picture
Rec 2020 xy
71.28%
69.61%
Rec 2020 uv
77.89%
74.75%
Color Volume
7.9
7.9
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
76.0%
75.4%
2020 Color Volume ITP Picture
10,000 cd/m² Rec 2020 Coverage ITP
34.4%
34.5%
White Luminance
797 cd/m²
668 cd/m²
Red Luminance
84 cd/m²
160 cd/m²
Green Luminance
291 cd/m²
450 cd/m²
Blue Luminance
29 cd/m²
54 cd/m²
Cyan Luminance
315 cd/m²
501 cd/m²
Magenta Luminance
106 cd/m²
207 cd/m²
Yellow Luminance
362 cd/m²
616 cd/m²
Pre Calibration
4.5
7.5
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
5.86
3.67
Color dE
5.13
2.51
Gamma
2.21
2.30
Color Temperature
7,167 K
6,239 K
Picture Mode
Expert (Dark Space)
Movie
Color Temp Setting
Warm 50
Warm
Gamma Setting
2.2
2.2
Post Calibration
9.4
9.4
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
0.16
0.26
Color dE
1.51
1.46
Gamma
2.20
2.20
Color Temperature
6,504 K
6,512 K
White Balance Calibration
22 point
20 point
Color Calibration
Yes
No
Gray Uniformity
8.7
7.8
50% Uniformity Picture
50% Std. Dev.
1.280%
2.499%
50% DSE
0.124%
0.165%
5% Uniformity Picture
5% Std. Dev.
0.317%
0.983%
5% DSE
0.088%
0.102%
Black Uniformity
10
9.1
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
N/A
0.471%
Native Black Uniformity Picture
Native Std. Dev.
0.229%
1.143%
Viewing Angle
8.9
5.4
Viewing Angle Video
Chroma Graph
Color Washout
57°
25°
Hue Graph
Color Shift
30°
33°
Lightness Graph
Brightness Loss
69°
30°
Black Level Raise
70°
13°
Gamma Shift
64°
21°
Reflections
9.3
8.5
Reflections Picture
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Glossy
Semi-gloss
Total Reflections
1.4%
3.1%
Indirect Reflections
0.2%
0.6%
Calculated Direct Reflections
1.2%
2.5%
HDR Native Gradient
7.3
8.5
HDR Gradient Picture
100% Black to 50% Gray
6.0
6.0
50% Gray to 100% White
8.0
10
100% Black to 50% Red
6.0
8.0
50% Red to 100% Red
10
10
100% Black to 50% Green
8.0
8.0
50% Green to 100% Green
6.0
8.0
100% Black to 50% Blue
6.0
8.0
50% Blue to 100% Blue
8.0
10
Low-Quality Content Smoothing
7.7
8.1
Low-Quality Content Smoothing Picture
Smoothing
7.5
9.0
Detail Preservation
8.0
6.0
Upscaling: Sharpness Processing
6.0
3.0
Sharpness Picture - 480p
Pixels
Pixels Picture
Subpixel Layout
RWBG
BGR
Type
OLED
LED
Sub-Type
WOLED
VA
Motion
Response Time
9.9
8.4
Motion Blur Picture
Response Time Chart
80% Response Time
0.2 ms
3.9 ms
100% Response Time
2.3 ms
11.1 ms
Flicker-Free
10
9.9
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
0 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
Yes
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)
Yes
Yes
Stutter
5.0
7.0
Frame Hold Time @ 24 fps
39.4 ms
30.6 ms
Frame Hold Time @ 60 fps
13.4 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
9.4
7.7
Native Refresh Rate
120 Hz
120 Hz
Variable Refresh Rate
Yes
Yes
HDMI Forum VRR
Yes
Yes
FreeSync
Yes
Yes
G-SYNC Compatible
Yes (NVIDIA Certified)
No
4k VRR Maximum
120 Hz
120 Hz
4k VRR Minimum
< 20 Hz
48 Hz
1080p VRR Maximum
120 Hz
120 Hz
1080p VRR Minimum
< 20 Hz
48 Hz
1440p VRR Maximum
120 Hz
120 Hz
1440p VRR Minimum
< 20 Hz
48 Hz
VRR + Local Dimming
No Local Dimming
Yes
Inputs
Input Lag
9.7
9.4
1080p @ 60Hz
10.1 ms
14.2 ms
1080p @ 60Hz Outside Game Mode
89.5 ms
138.8 ms
1080p @ 120Hz
5.2 ms
5.8 ms
1080p @ 144Hz
N/A
N/A
1440p @ 60Hz
10.1 ms
14.2 ms
1440p @ 120Hz
5.3 ms
5.8 ms
1440p @ 144Hz
N/A
N/A
4k @ 60Hz
10.1 ms
14.4 ms
4k @ 60Hz + 10-Bit HDR
10.0 ms
13.9 ms
4k @ 60Hz @ 4:4:4
10.0 ms
14.2 ms
4k @ 60Hz Outside Game Mode
89.4 ms
138.6 ms
4k @ 60Hz With Interpolation
85.4 ms
131.9 ms
4k @ 120Hz
5.6 ms
5.8 ms
4k @ 144Hz
N/A
N/A
8k @ 60Hz
N/A
N/A
Supported Resolutions
9.6
9.3
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
Yes
No
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+
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
Yes (HDMI 1,2,3,4)
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
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
3
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
0
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
No
Yes
eARC: DTS-HD Master Audio 7.1
No
Yes
eARC: LPCM Channels (Bitstream)
7.1
2.0
ARC: Dolby Digital 5.1
Yes
Yes
ARC: DTS 5.1
No
Yes
Optical: Dolby Digital 5.1
Yes
Yes
Optical: DTS 5.1
No
Yes
Sound Quality
Frequency Response
7.3
7.4
Frequency Response
Low-Frequency Extension
80.00 Hz
80.00 Hz
Std. Dev. @ 70
3.57 dB
4.97 dB
Std. Dev. @ 80
2.93 dB
4.80 dB
Std. Dev. @ Max
4.49 dB
4.39 dB
Max
91.1 dB SPL
95.1 dB SPL
Dynamic Range Compression
5.58 dB
1.87 dB
Distortion
6.9
8.2
Total Harmonic Distortion
Weighted THD @ 80
0.047
0.032
Weighted THD @ Max
0.508
0.385
IMD @ 80
6.48%
0.45%
IMD @ Max
12.74%
1.23%
Smart Features
Interface
8.5
8.0
Smart TV Picture
Smart OS
webOS
Google TV
Version
6.0
11
Ease of Use
Easy
Average
Smoothness
Average
Very Smooth
Time Taken to Select YouTube
2 s
2 s
Time Taken to Change Backlight
6 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
9.0
7.0
Remote Picture
Size
Large
Small
Voice Control
Many Features
Many Features
CEC Menu Control
Yes
Yes
Other Smart Features
Yes
No
Remote App
LG TV Plus
Android TV
TV Controls
Controls Picture
In The Box
In The Box Picture
Misc
Power Consumption
79 W
54 W
Power Consumption (Max)
184 W
154 W
Firmware
03.10.29
V8-T615T02-LF1V023
Check Price
48"
OLED48C1PUB
Searching
Finding store48"
55"
OLED55C1PUB
Searching
Finding store55"
55R646
Searching
Finding store65"
OLED65C1PUB
Searching
Finding store65"
65R646
Searching
Finding store75"
75"
75R646
Searching
Finding store77"
OLED77C1PUB
Searching
Finding store77"
83"
OLED83C1PUA
Searching
Finding store83"
LG C1 OLED
TCL 6 Series/R646 2021 QLED
Comments
LG C1 OLED vs TCL 6 Series/R646 2021 QLED: Main Discussion
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