LG - C4 OLED 65 vs TCL - QM6K 65

The QM6K 65 edges ahead on the Mars Score (61.9 vs 66), but the 4.1-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the C4 OLED 65 if you care most about hdmi 2.1 ports and panel type. The biggest gaps in its favor are hdmi 2.1 ports, panel type.

Pick the QM6K 65 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, smart os.

Both ship with comparable screen size, refresh rate, dolby vision, 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.