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TCL QM851G 83" — Mini-LED · 83" · 2024
TCL

TCL QM851G 83"

Mini-LED · 83" · 2024

92
/ 100
From $4,373
VS
LG C3 OLED 65" — OLED evo · 65" · 2023
LG

LG C3 OLED 65"

OLED evo · 65" · 2023

92
/ 100
From $3,124
Specdex verdict

Dead heat — it comes down to priorities.

In our weighted Specdex score, TCL QM851G 83" lands at 92 and LG C3 OLED 65" at 92. With scores tied, the decision hinges on which sub-scores matter most to you.

Pick TCL QM851G 83" if…

  • ✓Strong HDR performance
  • ✓Current smart platform
  • ✓HDMI 2.1 on most HDMI ports

Pick LG C3 OLED 65" if…

  • ✓Strong HDR performance
  • ✓Current smart platform
  • ✓HDMI 2.1 on most HDMI ports
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Picture quality

Tie

Panel, processing, and HDR performance

Effectively tied — neither pulls a 2-point weighted lead.

Gaming

Tie

Input lag, VRR, 120 Hz support

Effectively tied — neither pulls a 2-point weighted lead.

Smart platform

Tie

OS speed, app support, ecosystem

Effectively tied — neither pulls a 2-point weighted lead.

Value for money

LG C3 OLED 65"

Specdex score per dollar at MSRP

LG C3 OLED 65" more score per dollar ($3,124 vs $4,373).

TCL QM851G 83" 92
vs
92 LG C3 OLED 65"

Score breakdown

TCL QM851G 83"
92
picture 92
motion 90
gaming 88
smart 82
sound 78
LG C3 OLED 65"
92
picture 92
motion 90
gaming 88
smart 82
sound 78

Specs side-by-side

TCL QM851G 83" versus LG C3 OLED 65" — full spec comparison
Spec TCL QM851G 83" LG C3 OLED 65"
Panel
Mini-LED
OLED evo
Size
83"
65"
Refresh
120Hz
120Hz
Release year
2024
2023

TCL QM851G 83"

Pros
  • +Strong HDR performance
  • +Current smart platform
  • +HDMI 2.1 on most HDMI ports
Cons
  • −Ads on smart platform
  • −Sound trails dedicated audio
  • −Large footprint

LG C3 OLED 65"

Pros
  • +Strong HDR performance
  • +Current smart platform
  • +HDMI 2.1 on most HDMI ports
Cons
  • −Ads on smart platform
  • −Sound trails dedicated audio
  • −Large footprint

FAQ: TCL QM851G 83" vs LG C3 OLED 65"

Which is better, TCL QM851G 83" or LG C3 OLED 65"? +

Both score 92 on our weighted rubric — tied. Your best pick depends on the sub-scores above.

Is TCL QM851G 83" worth the price? +

At $4,373, TCL QM851G 83" delivers a Specdex score of 92 — strongest in picture.

Is LG C3 OLED 65" worth the price? +

At $3,124, LG C3 OLED 65" delivers a Specdex score of 92 — strongest in picture.

Does TCL QM851G 83" or LG C3 OLED 65" last longer? +

Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.

Which is the better value, TCL QM851G 83" or LG C3 OLED 65"? +

LG C3 OLED 65" — more score per dollar ($3,124 vs $4,373). Specdex score per dollar at MSRP.