The LG C4 OLED 55 outperforms the B4 on brightness (up to 300 nits higher in HDR per RTINGS) and gaming features while sharing the same 55-inch OLED panel. The B4 remains a strong value pick for non-gamers focused on movies in controlled lighting. C4 wins overall for most buyers seeking future-proofing in the 2024 OLED lineup.