Between the QM851 Mini LED 65 and C855 Mini LED 65, the QM851 Mini LED 65 comes out ahead in peak brightness, while the C855 Mini LED 65 wins on several specs. Overall, the QM851 Mini LED 65 scores 76.9 and the C855 Mini LED 65 scores 74.5 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (76.9 vs 74.5). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.
Pick the QM851 Mini LED 65 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are peak brightness.
The C855 Mini LED 65 similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable screen size, panel type, refresh rate, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why TCL - QM851 Mini LED 65 wins
- ▲Peak brightness — 42.86% more. 5000 nits vs 3500 nits.
Why TCL - C855 Mini LED 65 wins
- No decisive advantages.
Spec comparison
Display
| Spec | TCL - QM851 Mini LED 65 | TCL - C855 Mini LED 65 |
|---|---|---|
| Screen sizeⓘ | 65 " | 65 " |
| Panel typeⓘ | Mini-LED | Mini-LED |
| Resolutionⓘ | 4K | 4K |
| Refresh rateⓘ | 144 Hz | 144 Hz |
| Peak brightnessⓘ | 5000 nitslead | 3500 nits |
HDR & Smart
| Spec | TCL - QM851 Mini LED 65 | TCL - C855 Mini LED 65 |
|---|---|---|
| Dolby Visionⓘ | true | true |
| HDR10+ⓘ | true | true |
| Smart OS | Google TV | Google TV |
| Dolby Atmosⓘ | true | true |
Gaming
| Spec | TCL - QM851 Mini LED 65 | TCL - C855 Mini LED 65 |
|---|---|---|
| HDMI 2.1 portsⓘ | 2 | 2 |
| VRRⓘ | true | true |
| ALLM | true | true |
Frequently asked
Which is brighter, QM851 Mini LED 65 or C855 Mini LED 65?+
QM851 Mini LED 65 peaks at 5000 nits vs 3500 nits.
Which is better for gaming, QM851 Mini LED 65 or C855 Mini LED 65?+
QM851 Mini LED 65 offers 144Hz refresh and 2 HDMI 2.1 ports.
Does QM851 Mini LED 65 or C855 Mini LED 65 support Dolby Vision?+
Both support Dolby Vision.
Spec-level deep dives
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