
The LG C4 OLED 65" and Samsung QN90D 85" are most easily told apart by their overall size. On height, the Samsung QN90D 85" measures 1082.0 mm against the LG C4 OLED 65"'s 833.0 mm — about 249.0 mm more. On width, the Samsung QN90D 85" measures 1893.0 mm against the LG C4 OLED 65"'s 1449.0 mm — about 444.0 mm more. On thickness, the LG C4 OLED 65" measures 46.0 mm against the Samsung QN90D 85"'s 28.0 mm — about 18.0 mm more.
The Samsung QN90D 85" is the heavier of the two at 42.60 kg, compared with 18.10 kg for the LG C4 OLED 65". That is a 24.50 kg difference (135%). The Samsung QN90D 85" carries noticeably more mass — worth factoring into wall-mount or stand choices.
| Metric | LG C4 OLED 65" | Samsung QN90D 85" | Diff |
|---|---|---|---|
| Width | 1449.0 mm | 1893.0 mm | -444.0 mm |
| Height | 833.0 mm | 1082.0 mm | -249.0 mm |
| Depth | 46.0 mm | 28.0 mm | +18.0 mm |
| Weight | 18.10 kg | 42.60 kg | -24500.0 mm |