Between the C4 OLED 65 and QM7K Mini-LED 75, the C4 OLED 65 comes out ahead in panel type, while the QM7K Mini-LED 75 wins on peak brightness and screen size. Overall, the C4 OLED 65 scores 61.9 and the QM7K Mini-LED 75 scores 77.3 on our Mars Score.
Which should you buy?
The QM7K Mini-LED 75 is the clear pick on raw spec strength, leading by 15.4 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the C4 OLED 65 if you care most about panel type. The biggest gaps in its favor are panel type.
Pick the QM7K Mini-LED 75 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are peak brightness, screen size, smart os.
Both ship with comparable refresh rate, dolby vision, hdmi 2.1 ports, so those specs don't separate the two — focus on the differences below.
Bottom line: the QM7K Mini-LED 75 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why LG - C4 OLED 65 wins
- ▲Panel type: OLED (vs Mini-LED).
Why TCL - QM7K Mini-LED 75 wins
- ▲Peak brightness — 250.00% more. 3500 nits vs 1000 nits.
- ▲Screen size — 15.38% more. 75 " vs 65 ".
- ▲Smart OS: Google TV (vs webOS).
Spec comparison
Display
| Spec | LG - C4 OLED 65 | TCL - QM7K Mini-LED 75 |
|---|---|---|
| Screen sizeⓘ | 65 " | 75 "lead |
| Panel typeⓘ | OLEDlead | Mini-LED |
| Resolutionⓘ | 4K | 4K |
| Refresh rateⓘ | 144 Hz | 144 Hz |
| Peak brightnessⓘ | 1000 nits | 3500 nitslead |
HDR & Smart
| Spec | LG - C4 OLED 65 | TCL - QM7K Mini-LED 75 |
|---|---|---|
| Dolby Visionⓘ | true | true |
| HDR10+ⓘ | false | truelead |
| Smart OS | webOS | Google TVlead |
| Dolby Atmosⓘ | true | true |
Gaming
| Spec | LG - C4 OLED 65 | TCL - QM7K Mini-LED 75 |
|---|---|---|
| HDMI 2.1 portsⓘ | 4 | 4 |
| VRRⓘ | true | true |
| ALLM | true | true |
Frequently asked
Which is brighter, C4 OLED 65 or QM7K Mini-LED 75?+
QM7K Mini-LED 75 peaks at 3500 nits vs 1000 nits.
Which is better for gaming, C4 OLED 65 or QM7K Mini-LED 75?+
C4 OLED 65 offers 144Hz refresh and 4 HDMI 2.1 ports.
Does C4 OLED 65 or QM7K Mini-LED 75 support Dolby Vision?+
Both support Dolby Vision.
Spec-level deep dives
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