Between the G5 OLED evo 77 and QM7K Mini-LED 75, the G5 OLED evo 77 comes out ahead in refresh rate and peak brightness, while the QM7K Mini-LED 75 wins on smart os. Overall, the G5 OLED evo 77 scores 82.3 and the QM7K Mini-LED 75 scores 77.3 on our Mars Score.
Which should you buy?
The G5 OLED evo 77 edges ahead on the Mars Score (82.3 vs 77.3), but the 5.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the G5 OLED evo 77 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 refresh rate, peak brightness, screen size, among others.
Pick the QM7K Mini-LED 75 if you care most about smart os. Its strongest claims are smart os.
Both ship with comparable dolby vision, hdmi 2.1 ports, vrr, so those specs don't separate the two — focus on the differences below.
Bottom line: the G5 OLED evo 77 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why LG - G5 OLED evo 77 wins
- ▲Refresh rate — 14.58% more. 165 Hz vs 144 Hz.
- ▲Peak brightness — 14.29% more. 4000 nits vs 3500 nits.
- ▲Screen size — 2.67% more. 77 " vs 75 ".
- ▲Panel type: OLED (vs Mini-LED).
Why TCL - QM7K Mini-LED 75 wins
- ▲Smart OS: Google TV (vs webOS).
Spec comparison
Display
| Spec | LG - G5 OLED evo 77 | TCL - QM7K Mini-LED 75 |
|---|---|---|
| Screen sizeⓘ | 77 "lead | 75 " |
| Panel typeⓘ | OLEDlead | Mini-LED |
| Resolutionⓘ | 4K | 4K |
| Refresh rateⓘ | 165 Hzlead | 144 Hz |
| Peak brightnessⓘ | 4000 nitslead | 3500 nits |
HDR & Smart
| Spec | LG - G5 OLED evo 77 | TCL - QM7K Mini-LED 75 |
|---|---|---|
| Dolby Visionⓘ | true | true |
| HDR10+ⓘ | false | truelead |
| Smart OS | webOS | Google TVlead |
| Dolby Atmosⓘ | true | true |
Gaming
| Spec | LG - G5 OLED evo 77 | TCL - QM7K Mini-LED 75 |
|---|---|---|
| HDMI 2.1 portsⓘ | 4 | 4 |
| VRRⓘ | true | true |
| ALLM | true | true |
Frequently asked
Which is brighter, G5 OLED evo 77 or QM7K Mini-LED 75?+
G5 OLED evo 77 peaks at 4000 nits vs 3500 nits.
Which is better for gaming, G5 OLED evo 77 or QM7K Mini-LED 75?+
G5 OLED evo 77 offers 165Hz refresh and 4 HDMI 2.1 ports.
Does G5 OLED evo 77 or QM7K Mini-LED 75 support Dolby Vision?+
Both support Dolby Vision.
Spec-level deep dives
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