LG OLED evo C6 55" 4K Smart TV vs LG C5 55-Inch OLED evo TV

Both are 55-inch LG OLEDs with four HDMI ports and 120Hz-class panels, so the picture fundamentals are close. The C6 (A) is the newer, brighter set: α11 Gen3 processor, Brightness Booster, Dolby Vision and Atmos, 165Hz VRR, G-Sync and FreeSync Premium, and webOS 2026 with Gemini and Copilot. The C5 (B) is the prior-year model with the a9 processor, 144Hz, and a plainer smart platform. Buyers and reviewers consistently praise LG OLED blacks and viewing angles on both; the C6 adds brightness and gaming headroom that the C5 lacks.

• Choose the LG C6 if you game at high frame rates, watch a lot of HDR movies, or want the brighter panel and newer processor.
• Choose the LG C5 if you mainly watch SDR streaming and want the same OLED contrast with fewer features to pay for.