Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Hisense - ULED X UX 85 | TCL - QM851 Mini LED 65 |
|---|---|---|
| Screen size | 85 " | 65 " |
| Refresh rate | 165 Hz | 144 Hz |
Between the ULED X UX 85 and QM851 Mini LED 65, the ULED X UX 85 comes out ahead in screen size / refresh rate, while the QM851 Mini LED 65 wins on several specs. Overall, the ULED X UX 85 scores 81.8 and the QM851 Mini LED 65 scores 76.2 on our Mars Score.
Which should you buy?
The ULED X UX 85 edges ahead on the Mars Score (81.8 vs 76.2), but the 5.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the ULED X UX 85 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 screen size, refresh rate. The single most decisive one: Screen size — 30.77% more. 85 " vs 65 ".
The QM851 Mini LED 65 similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable panel type, peak brightness, dolby vision, so those specs do not separate the two — focus on the differences below.
Bottom line: the ULED X UX 85 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Hisense - ULED X UX 85 or TCL - QM851 Mini LED 65?
Hisense - ULED X UX 85 leads the current Mars Score by 5.6 points.The more useful decision is the trade-off behind that result: compare screen size, refresh rate against the way you will actually use the product.
Choose Hisense - ULED X UX 85 if…
Hisense - ULED X UX 85 has the measurable edge on screen size in, refresh rate hz.
Choose TCL - QM851 Mini LED 65 if…
TCL - QM851 Mini LED 65 does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Hisense - ULED X UX 85 wins
- ▲Screen size — 30.77% more. 85 " vs 65 ".
- ▲Refresh rate — 14.58% more. 165 Hz vs 144 Hz.
Why TCL - QM851 Mini LED 65 wins
- No decisive advantages.
Spec comparison
Display
| Spec | Hisense - ULED X UX 85 | TCL - QM851 Mini LED 65 |
|---|---|---|
| Screen size | 85 "lead | 65 " |
| Panel typeⓘ | Mini-LED | Mini-LED |
| Resolutionⓘ | 4K | 4K |
| Refresh rateⓘ | 165 Hzlead | 144 Hz |
| Peak brightnessⓘ | 5000 nits | 5000 nits |
HDR & Smart
| Spec | Hisense - ULED X UX 85 | TCL - QM851 Mini LED 65 |
|---|---|---|
| Dolby Visionⓘ | true | true |
| HDR10+ⓘ | true | true |
| Smart OS | Google TV | Google TV |
| Dolby Atmosⓘ | true | true |
Gaming
| Spec | Hisense - ULED X UX 85 | TCL - QM851 Mini LED 65 |
|---|---|---|
| HDMI 2.1 portsⓘ | 2 | 2 |
| VRRⓘ | true | true |
| ALLM | true | true |
Frequently asked
Which is brighter, ULED X UX 85 or QM851 Mini LED 65?+
QM851 Mini LED 65 peaks at 5000 nits vs 5000 nits.
Which is better for gaming, ULED X UX 85 or QM851 Mini LED 65?+
ULED X UX 85 offers 165Hz refresh and 2 HDMI 2.1 ports.
Does ULED X UX 85 or QM851 Mini LED 65 support Dolby Vision?+
Both support Dolby Vision.