TCL
TCL QM851G 75"
Mini-LED · 5000 nits peak · 144Hz
92
/ 100
From $2,499
VS
TCL
TCL QM851G 77"
Mini-LED · 77" · 2024
92
/ 100
From $3,749
Specdex verdict
Dead heat — it comes down to priorities.
In our weighted Specdex score, TCL QM851G 75" lands at 92 and TCL QM851G 77" at 92. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick TCL QM851G 75" if…
- ✓Blinding 5000-nit peak
- ✓ZeroBorder design
- ✓Bang Olufsen tuned audio
Pick TCL QM851G 77" if…
- ✓Strong HDR performance
- ✓Current smart platform
- ✓HDMI 2.1 on most HDMI ports
TCL QM851G 75" 92
vs 92 TCL QM851G 77"
Score breakdown
TCL QM851G 75"
92 picture 93
motion 90
gaming 94
smart 82
sound 86
TCL QM851G 77"
92 picture 92
motion 90
gaming 88
smart 82
sound 78
Specs side-by-side
| Spec | TCL QM851G 75" | TCL QM851G 77" |
|---|---|---|
| Panel | Mini-LED | Mini-LED |
| Size | 75″ | 77" |
| Refresh | ▲ 144Hz | 120Hz |
| HDR | Dolby Vision IQ + HDR10+ | — |
| Release year | — | 2024 |
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
TCL QM851G 77"
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 75" vs TCL QM851G 77"
Which is better, TCL QM851G 75" or TCL QM851G 77"? +
Both score 92 on our weighted rubric — tied. 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 TCL QM851G 77" worth the price? +
At $3,749, TCL QM851G 77" delivers a Specdex score of 92 — strongest in picture.
Does TCL QM851G 75" or TCL QM851G 77" 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.