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LG C3 OLED 55" — OLED evo · 55" · 2023
LG

LG C3 OLED 55"

OLED evo · 55" · 2023

92
/ 100
From $2,499
VS
TCL QM851G 75" — Mini-LED · 5000 nits peak · 144Hz
TCL

TCL QM851G 75"

Mini-LED · 5000 nits peak · 144Hz

92
/ 100
From $2,499
Specdex verdict

Dead heat — it comes down to priorities.

In our weighted Specdex score, LG C3 OLED 55" lands at 92 and TCL QM851G 75" at 92. With scores tied, the decision hinges on which sub-scores matter most to you.

Pick LG C3 OLED 55" if…

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

Pick TCL QM851G 75" if…

  • ✓Blinding 5000-nit peak
  • ✓ZeroBorder design
  • ✓Bang Olufsen tuned audio
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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

TCL QM851G 75"

Input lag, VRR, 120 Hz support

TCL QM851G 75" leads on gaming (94 vs 88).

Smart platform

Tie

OS speed, app support, ecosystem

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

Value for money

Tie

Specdex score per dollar at MSRP

Effectively tied — similar score-per-dollar at MSRP.

LG C3 OLED 55" 92
vs
92 TCL QM851G 75"

Score breakdown

LG C3 OLED 55"
92
picture 92
motion 90
gaming 88
smart 82
sound 78
TCL QM851G 75"
92
picture 93
motion 90
gaming 94
smart 82
sound 86

Specs side-by-side

LG C3 OLED 55" versus TCL QM851G 75" — full spec comparison
Spec LG C3 OLED 55" TCL QM851G 75"
Panel
OLED evo
Mini-LED
Size
55"
75″
Refresh
120Hz
▲ 144Hz
Release year
2023
—
HDR
—
Dolby Vision IQ + HDR10+

LG C3 OLED 55"

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

TCL QM851G 75"

Pros
  • +Blinding 5000-nit peak
  • +ZeroBorder design
  • +Bang Olufsen tuned audio
Cons
  • −Google TV ads
  • −Blooming in dark scenes
  • −Local-dimming tuning varies

FAQ: LG C3 OLED 55" vs TCL QM851G 75"

Which is better, LG C3 OLED 55" or TCL QM851G 75"? +

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

Is LG C3 OLED 55" worth the price? +

At $2,499, LG C3 OLED 55" delivers a Specdex score of 92 — strongest in picture.

Is TCL QM851G 75" worth the price? +

At $2,499, TCL QM851G 75" delivers a Specdex score of 92 — strongest in gaming.

Does LG C3 OLED 55" or TCL QM851G 75" 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 better for gaming, LG C3 OLED 55" or TCL QM851G 75"? +

TCL QM851G 75" — leads on gaming (94 vs 88). Input lag, VRR, 120 Hz support.