Products
TCL QM6K
LG UA77
Tested using Methodology v2.0.1
Updated Oct 30, 2025 02:52 PM
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Tested using Methodology v2.0.1
Updated Oct 14, 2025 05:21 PM
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Resolution4k
Native Refresh Rate
144Hz
TypeLED
Sub-Type
VA
Dolby Vision
Yes
Screen Finish
Glossy
Resolution4k
Native Refresh Rate
60Hz
TypeLED
Sub-Type
IPS
Dolby Vision
No
Screen Finish
Glossy
Our Verdict
TCL QM6K
LG UA77
The TCL QM6K is a significantly better TV than the UA77, in just about every possible way. The TCL has much better picture quality, with higher contrast, higher peak brightness, brighter colors, and better accuracy. The TCL also has better motion handling, with significantly less blur when watching sports or gaming. The LG has a wider viewing angle, but the picture quality is so much worse that you're better off with the TCL even if you have a wide seating arrangement.
Variants
- 50QM6K (50")
- 55QM6K (55")
- 65QM6K (65")
- 75QM6K (75")
- 85QM6K (85")
- 98QM6K (98")
- 43UA7700PUB (43")
- 50UA7700PUB (50")
- 55UA7700PUB (55")
- 65UA7700PUB (65")
- 75UA7700PUA (75")
- 86UA7700PUA (85")
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43"
43"
43UA7700PUB
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50"
50QM6K
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50UA7700PUB
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55"
55QM6K
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55"
55UA7700PUB
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65"
65QM6K
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65UA7700PUB
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75"
75QM6K
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75UA7700PUA
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85"
85QM6K
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86UA7700PUA
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98"
98QM6K
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98"
Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
7.1
4.9
Contrast
8.1
1.4
HDR Brightness
6.0
4.6
SDR Brightness
7.5
4.9
Lighting Zone Precision
6.5
0.0
HDR Color Volume
6.9
4.5
Black Uniformity
7.5
5.9
Full Comparison
Brightness
HDR Brightness
6.0
4.6
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
409 cd/m²
272 cd/m²
Yellow Skyscraper (~700 cd/m²)
276 cd/m²
265 cd/m²
Landscape Pool (~300 cd/m²)
198 cd/m²
205 cd/m²
Peak 2% Window
544 cd/m²
215 cd/m²
Peak 10% Window
698 cd/m²
295 cd/m²
Peak 25% Window
890 cd/m²
294 cd/m²
Peak 50% Window
697 cd/m²
293 cd/m²
Peak 100% Window
453 cd/m²
292 cd/m²
Sustained 2% Window
468 cd/m²
214 cd/m²
Sustained 10% Window
694 cd/m²
294 cd/m²
Sustained 25% Window
752 cd/m²
293 cd/m²
Sustained 50% Window
691 cd/m²
293 cd/m²
Sustained 100% Window
452 cd/m²
292 cd/m²
Automatic Brightness Limiting (ABL)
0.034
0.022
HDR Brightness In Game Mode
6.0
4.4
HDR Hallway Photo
HDR Cityscape Photo
HDR Landscape Photo
Hallway Lights (~1950 cd/m²)
412 cd/m²
275 cd/m²
Yellow Skyscraper (~700 cd/m²)
246 cd/m²
255 cd/m²
Landscape Pool (~300 cd/m²)
232 cd/m²
193 cd/m²
Peak 2% Window
468 cd/m²
200 cd/m²
Peak 10% Window
684 cd/m²
276 cd/m²
Peak 25% Window
758 cd/m²
275 cd/m²
Peak 50% Window
693 cd/m²
275 cd/m²
Peak 100% Window
450 cd/m²
275 cd/m²
Sustained 2% Window
466 cd/m²
199 cd/m²
Sustained 10% Window
677 cd/m²
275 cd/m²
Sustained 25% Window
744 cd/m²
275 cd/m²
Sustained 50% Window
688 cd/m²
275 cd/m²
Sustained 100% Window
450 cd/m²
275 cd/m²
Automatic Brightness Limiting (ABL)
0.033
0.022
SDR Brightness
7.5
4.9
Real Scene Peak Brightness
429 cd/m²
215 cd/m²
Peak 2% Window
513 cd/m²
248 cd/m²
Peak 10% Window
642 cd/m²
248 cd/m²
Peak 25% Window
814 cd/m²
247 cd/m²
Peak 50% Window
646 cd/m²
247 cd/m²
Peak 100% Window
418 cd/m²
247 cd/m²
Sustained 2% Window
442 cd/m²
247 cd/m²
Sustained 10% Window
635 cd/m²
247 cd/m²
Sustained 25% Window
696 cd/m²
247 cd/m²
Sustained 50% Window
640 cd/m²
247 cd/m²
Sustained 100% Window
418 cd/m²
247 cd/m²
Automatic Brightness Limiting (ABL)
0.031
0.000
Black Level
Contrast
8.1
1.4
Contrast Picture
Contrast
118,059 : 1
992 : 1
Native Contrast
6,471 : 1
992 : 1
Lighting Zone Precision
6.5
0.0
Lighting Zone Precision Picture
Lighting Zone Transitions
7.0
10
Preferred LD Video, Moving Object
Local Dimming
Yes
No
Backlight
Full-Array
Direct
Dimming Zone Count Of The Tested TV
312
N/A
Contrast And Dark Details In Game Mode
7.0
2.0
Lighting Zone Precision Photo In Game Mode
Preferred LD Video, Moving Object In Game Mode
Game Transitions With VRR And Preferred LD
Black Uniformity
7.5
5.9
Black Uniformity Picture With Preferred Local Dimming
Std. Dev.
0.972%
N/A
Native Black Uniformity Picture
Native Std. Dev.
0.477%
1.314%
Color
SDR Color Volume
6.7
5.6
DCI-P3 Gamut Rings
CIELAB DCI-P3 Coverage
83.71%
72.75%
BT.2020 Gamut Rings
CIELAB BT.2020 Coverage
57.93%
49.13%
HDR Color Volume
6.9
4.5
P3 Color Volume ITP Picture
1,000 cd/m² DCI P3 Coverage ITP
68.2%
31.5%
2020 Color Volume ITP Picture
10,000 cd/m² BT.2020 Coverage ITP
30.5%
16.0%
White Luminance
477 cd/m²
211 cd/m²
Red Luminance
103 cd/m²
36 cd/m²
Green Luminance
343 cd/m²
132 cd/m²
Blue Luminance
29 cd/m²
12 cd/m²
Cyan Luminance
374 cd/m²
149 cd/m²
Magenta Luminance
119 cd/m²
48 cd/m²
Yellow Luminance
415 cd/m²
148 cd/m²
SDR Pre-Calibration Color Accuracy
7.6
6.1
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE 2000
4.15
3.93
Color dE 2000
2.42
3.19
Gamma
2.23
2.24
Color Temperature
6,456 K
7,460 K
Picture Mode
Movie
Expert (Dark Space, night)
Color Temp Setting
warm 5
Warm 40
Gamma Setting
2,2
2.2
SDR Post-Calibration Color Accuracy
9.5
9.1
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE 2000
0.26
0.58
Color dE 2000
1.24
1.98
Gamma
2.20
2.21
Color Temperature
6,492 K
6,534 K
White Balance Calibration
20 point
22 point
Color Calibration
Yes
Yes
HDR Pre-Calibration Color Accuracy
8.3
5.4
HDR Pre White Balance Picture
HDR Pre Color Picture
White Balance dE ITP
8.20
10.50
Color dE ITP
6.3
24.8
Color Temperature
6,609 K
8,018 K
Picture Mode
Movie
Cinema
HDR Post-Calibration Color Accuracy
9.1
6.2
HDR Post White Balance Picture
HDR Post Color Picture
White Balance dE ITP
5.70
8.50
Color dE ITP
4.90
22.10
Color Temperature
6,511 K
7,354 K
Processing
PQ EOTF Tracking
7.8
6.3
PQ EOTF Graph
600 Nit Tracking Delta
0.0074
0.0107
1000 Nit Tracking Delta
0.0054
0.0107
4000 Nit Tracking Delta
0.0058
0.0106
Low-Quality Content Smoothing
7.0
7.6
Low-Quality Content Smoothing Picture
Smoothing
7.0
8.0
Detail Preservation
7.0
6.5
Upscaling: Sharpness Processing
6.5
6.0
Sharpness Picture - 480p
HDR Native Gradient
6.8
7.0
HDR Gradient Picture
100% Black To 50% Gray
6.0
6.0
50% Gray To 100% White
6.0
8.0
100% Black To 50% Red
6.0
6.0
50% Red To 100% Red
8.0
10
100% Black To 50% Green
6.0
4.0
50% Green To 100% Green
6.0
6.0
100% Black To 50% Blue
8.0
8.0
50% Blue To 100% Blue
8.0
8.0
Game Mode Responsiveness
Input Lag
9.0
8.3
1080p @ 60Hz
10.4 ms
9.8 ms
1080p @ 60Hz Outside Game Mode
108.7 ms
159.8 ms
1080p @ 120Hz
5.6 ms
N/A
1080p @ Max Refresh Rate
3.1 ms
9.8 ms
4k @ 60Hz
10.2 ms
9.5 ms
4k @ 60Hz @ 4:4:4
9.9 ms
9.7 ms
4k @ 60Hz Outside Game Mode
108.0 ms
161.3 ms
4k @ 60Hz With Interpolation
128.8 ms
161.7 ms
4k @ 120Hz
5.5 ms
N/A
4k @ Max Refresh Rate
4.7 ms
9.5 ms
8k @ 60Hz
N/A
N/A
Supported Resolutions
9.5
6.3
Resolution
4k
4k
480p @ 59.94Hz (Widescreen)
Yes
Yes
720p @ 59.94Hz
Yes
Yes
1080p @ 60Hz @ 4:4:4
Yes
Yes
1080p @ 120Hz
Yes
No
1080p Maximum Refresh Rate
288 Hz
60 Hz
4k @ 60Hz
Yes
Yes
4k @ 60Hz @ 4:4:4
Yes
Yes
4k @ 120Hz
Yes
No
4k @ 120Hz @ 4:4:4
Yes
No
4k Maximum Refresh Rate
144 Hz
60 Hz
8k @ 30Hz Or 24Hz
No
No
8k @ 60Hz
No
No
Variable Refresh Rate
8.8
6.0
Native Refresh Rate
144Hz
60Hz
Variable Refresh Rate
Yes
Yes
HDMI Forum VRR
Yes
Yes
FreeSync
Yes
Yes
G-SYNC Compatible
Yes
Yes
4k VRR Maximum
144 Hz
60 Hz
4k VRR Minimum
< 20 Hz
48 Hz
1080p VRR Maximum
288 Hz
60 Hz
1080p VRR Minimum
< 20 Hz
48 Hz
VRR + Local Dimming
Yes
No Local Dimming
CAD In Game Mode @ Max Refresh Rate
7.1
4.9
Pursuit Photo Max Refresh
CAD Heatmap Max Refresh
Transition At Max Refresh
0 to 31
0 to 31
Avg. CAD
201
368
Best 10% CAD
101
159
Worst 10% CAD
307
636
CAD In Game Mode @ 120Hz
6.9
0.0
Pursuit Photo 120Hz
CAD Heatmap 120Hz
Transition At 120Hz
0 to 31
Avg. CAD
214
N/A
Best 10% CAD
102
N/A
Worst 10% CAD
329
N/A
CAD In Game Mode @ 60Hz
6.3
4.9
Pursuit Photo 60Hz
CAD Heatmap 60Hz
Transition 60Hz
0 to 31
0 to 31
Avg. CAD
273
368
Best 10% CAD
96
159
Worst 10% CAD
442
636
PS5 Compatibility
PS5 Screenshot
Auto Low Latency Mode (ALLM)
Yes
Yes
4k @ 120Hz
Yes
No
1440p @ 120Hz
Yes
No
1080p @ 120Hz
Yes
No
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
No
1440p @ 120Hz
Yes
No
1080p @ 120Hz
Yes
No
HDR
Yes
Yes
VRR
Yes
Yes
Motion Handling
Stutter
7.5
8.0
Frame Hold Time @ 24 fps
30.2 ms
26.4 ms
Frame Hold Time @ 60 fps
5.5 ms
1.7 ms
24p Judder
10
7.0
Judder-Free 24p
Yes
Yes
Judder-Free 24p via 60p
Yes
No
Judder-Free 24p via 60i
Yes
No
Judder-Free 24p via Native Apps
Yes
Yes
Response Time
6.8
5.0
Pursuit Photo 60Hz
Response Time Heatmap 60Hz
Transition At 60Hz
0 to 31
0 to 31
First Response Time
11.2 ms
15.0 ms
Total Response Time
11.5 ms
15.3 ms
Worst 10% Response Time
24.4 ms
23.2 ms
Flicker
Backlight chart
Flicker-Free
No
No
PWM Dimming Frequency
10,400 Hz
120 Hz
Black Frame Insertion (BFI)
BFI Picture
BFI Frequency Picture
Optional BFI
Yes
No
Min Flicker For 60 fps
60 Hz
120 Hz
60Hz For 60 fps
Yes
No
120Hz For 120 fps
Yes
No
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
No
Reflections
Direct Reflections
5.2
5.2
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
67.5%
67.5%
Screen Finish
Glossy
Glossy
Ambient Black Level Raise
9.0
9.1
Black Level Raise Picture
Bright Room Black Level Raise Graph
Black Luminance @ 0 lx
0.00 cd/m²
0.10 cd/m²
Black Luminance @ 1000 lx
0.43 cd/m²
0.35 cd/m²
Total Reflected Light
6.6
7.2
Bright Room Off Picture
Ring Picture Total Reflection
Total Reflected Light Intensity
22,862% ⋅ pixel
21,925% ⋅ pixel
Diffraction Artifacts
Yes
No
Ambient Color Saturation
6.9
5.3
Bright Room Color Volume Graph
Low-Luminance Colors @ 1000 lx
62.27%
44.31%
Mid-Luminance Colors @ 1000 lx
54.81%
50.14%
High-Luminance Colors @ 1000 lx
39.71%
42.51%
Panel
Viewing Angle
6.4
8.2
Viewing Angle Video
Chroma Graph
Color Washout
32°
39°
Hue Graph
Color Shift
47°
66°
Lightness Graph
Brightness Loss
31°
40°
Black Level Raise
19°
70°
Gamma Shift
16°
50°
Gray Uniformity
6.6
6.1
50% Uniformity Picture
50% Std. Dev.
2.416%
4.456%
50% DSE
0.189%
0.198%
5% Uniformity Picture
5% Std. Dev.
1.186%
0.758%
5% DSE
0.098%
0.086%
Panel Technology
Spectral Power Distribution
Pixels Picture
Type
LED
LED
Sub-Type
VA
IPS
Subpixel Layout
BGR
RGB
Inputs
Input Specifications
Side Inputs Picture
Rear Inputs Picture
HDMI
4 (2x HDMI 2.0, 2x HDMI 2.1)
3 (3x HDMI 2.0)
HDMI 2.1 Rated Speed
48 Gbps
No HDMI 2.1
ATSC Tuner
1.0
1.0
USB Ports
2
2
USB 3.0
Yes (1)
No
Audio Out 3.5mm
0
0
Wi-Fi
Yes (2.4 GHz, 5 GHz)
Yes (2.4 GHz, 5 GHz)
Ethernet Speed
100 Mbps
100 Mbps
Composite In
0
0
Digital Optical Audio Out
1
1
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
No
eARC: DTS-HD Master Audio 7.1
Yes
No
eARC: LPCM Channels (Bitstream)
7.1
7.1
ARC: Dolby Digital 5.1
Yes
Yes
ARC: DTS 5.1
Yes
No
Optical: Dolby Digital 5.1
Yes
Yes
Optical: DTS 5.1
Yes
No
HDR Format Support
HDR10
Yes
Yes
HDR10+
Yes
No
Dolby Vision
Yes
No
HLG
Yes
Yes
Design
Style
Design Picture
Curved
No
No
Stand
Stand Picture
Back
Back Picture
Wall Mount
VESA 300x300
VESA 300x300
Borders
Borders Picture
Borders
0.47" (1.2 cm)
0.39" (1.0 cm)
Thickness
Thickness Picture
Max Thickness
2.24" (5.7 cm)
2.36" (6.0 cm)
Build Quality
7.0
7.0
Build quality picture
Smart Features
Interface
Smart TV Picture
Smart OS
Google TV
webOS
Version
12
25
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
Remote
Remote Picture
Voice Control
Yes
No
TV Controls
Controls Picture
Mute Switch
Yes
No
In The Box
In The Box Picture
Misc
Power Consumption
51 W
71 W
Power Consumption (Max)
187 W
140 W
Firmware
V8-001202-LF139.001386
33.21.62
Sound Quality
Frequency Response
6.5
6.5
Frequency Response
Low-Frequency Extension
100.79 Hz
126.99 Hz
Std. Dev. @ 70
2.72 dB
3.16 dB
Std. Dev. @ 80
3.21 dB
2.89 dB
Std. Dev. @ Max
5.33 dB
5.82 dB
Max
85.3 dB SPL
89.7 dB SPL
Dynamic Range Compression
4.27 dB
4.88 dB
Digital Room Correction
Yes
Yes
Check Price
43"
43"
43UA7700PUB
SEE PRICE
BestBuy.com
50"
50QM6K
SEARCH
Amazon.com
50"
50UA7700PUB
SEE PRICE
BestBuy.com
55"
55QM6K
SEE PRICE
BestBuy.com
55"
55UA7700PUB
SEE PRICE
BestBuy.com
65"
65QM6K
SEE PRICE
BestBuy.com
65"
65UA7700PUB
SEE PRICE
BestBuy.com
75"
75QM6K
SEE PRICE
BestBuy.com
75"
75UA7700PUA
SEE PRICE
BestBuy.com
85"
85QM6K
SEE PRICE
BestBuy.com
85"
86UA7700PUA
SEE PRICE
BestBuy.com
98"
98QM6K
SEE PRICE
BestBuy.com
98"
TCL QM6K
LG UA77
Comments
TCL QM6K vs LG UA77: Main Discussion
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