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TCL QM851G 75" — Mini-LED · 5000 nits peak · 144Hz
TCL

TCL QM851G 75"

Mini-LED · 5000 nits peak · 144Hz

92
/ 100
From $2,499
VS
LG G4 OLED 65" wins by 3
LG G4 OLED 65" — MLA OLED · 144 Hz · α11 processor
LG

LG G4 OLED 65"

MLA OLED · 144 Hz · α11 processor

95
/ 100
From $3,299
Specdex verdict

LG G4 OLED 65" takes it — here’s why.

In our weighted Specdex score, TCL QM851G 75" lands at 92 and LG G4 OLED 65" at 95. That puts LG G4 OLED 65" ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.

Pick TCL QM851G 75" if…

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

Pick LG G4 OLED 65" if…

  • ✓Up to ~2,400 nits peak (MLA Gen 2)
  • ✓4× HDMI 2.1 with 144 Hz support
  • ✓Dolby Vision + Atmos
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Winner by scenario

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

Picture quality

LG G4 OLED 65"

Panel, processing, and HDR performance

LG G4 OLED 65" leads on picture (96 vs 93).

Gaming

LG G4 OLED 65"

Input lag, VRR, 120 Hz support

LG G4 OLED 65" leads on motion (96 vs 90).

Smart platform

LG G4 OLED 65"

OS speed, app support, ecosystem

LG G4 OLED 65" leads on smart (84 vs 82).

Value for money

TCL QM851G 75"

Specdex score per dollar at MSRP

TCL QM851G 75" more score per dollar ($2,499 vs $3,299).

TCL QM851G 75" 92
vs
95 LG G4 OLED 65"

Score breakdown

TCL QM851G 75"
92
picture 93
motion 90
gaming 94
smart 82
sound 86
LG G4 OLED 65"
95
picture 96
motion 96
gaming 96
smart 84
sound 80

Specs side-by-side

TCL QM851G 75" versus LG G4 OLED 65" — full spec comparison
Spec TCL QM851G 75" LG G4 OLED 65"
Panel
Mini-LED
MLA OLED Gen 2
Size
75″
65″
Refresh
144Hz
144 Hz
HDR
Dolby Vision IQ + HDR10+
Dolby Vision, HDR10
HDMI
—
4× HDMI 2.1
Processor
—
α11 AI Processor 4K

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

LG G4 OLED 65"

Pros
  • +Up to ~2,400 nits peak (MLA Gen 2)
  • +4× HDMI 2.1 with 144 Hz support
  • +Dolby Vision + Atmos
Cons
  • −No HDR10+
  • −Gallery mount sold separately
  • −webOS includes ads

FAQ: TCL QM851G 75" vs LG G4 OLED 65"

Which is better, TCL QM851G 75" or LG G4 OLED 65"? +

LG G4 OLED 65" scores 95 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.

Is TCL QM851G 75" worth the price? +

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

Is LG G4 OLED 65" worth the price? +

At $3,299, LG G4 OLED 65" delivers a Specdex score of 95 — strongest in picture.

Does TCL QM851G 75" or LG G4 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 better for picture quality, TCL QM851G 75" or LG G4 OLED 65"? +

LG G4 OLED 65" — leads on picture (96 vs 93). Panel, processing, and HDR performance.

Which is better for gaming, TCL QM851G 75" or LG G4 OLED 65"? +

LG G4 OLED 65" — leads on motion (96 vs 90). Input lag, VRR, 120 Hz support.