
The LG C4 OLED 65" and Samsung QN90D 55" are most easily told apart by their overall size. On height, the LG C4 OLED 65" measures 833.0 mm against the Samsung QN90D 55"'s 708.0 mm — about 125.0 mm more. On width, the LG C4 OLED 65" measures 1449.0 mm against the Samsung QN90D 55"'s 1228.0 mm — about 221.0 mm more. On thickness, the LG C4 OLED 65" measures 46.0 mm against the Samsung QN90D 55"'s 27.0 mm — about 19.0 mm more.
The LG C4 OLED 65" is the heavier of the two at 18.10 kg, compared with 17.10 kg for the Samsung QN90D 55". That is a 1.00 kg difference (6%). The weight gap is modest and unlikely to change placement decisions.
| Metric | LG C4 OLED 65" | Samsung QN90D 55" | Diff |
|---|---|---|---|
| Width | 1449.0 mm | 1228.0 mm | +221.0 mm |
| Height | 833.0 mm | 708.0 mm | +125.0 mm |
| Depth | 46.0 mm | 27.0 mm | +19.0 mm |
| Weight | 18.10 kg | 17.10 kg | +1000.0 mm |