LG C3 OLED vs LG G4 OLED

The LG G4 OLED is better than the LG C3 OLED. The G4 gets brighter overall, so it overcomes more glare in a bright room while watching SDR content, and highlights pop more in HDR content. The G4 also maintains its HDR brightness much better in Game Mode, so you don't have to trade in brightness for performance when gaming. The G4 has better color volume, so it can display colors brighter, and there is less banding in colors. Finally, the G4 supports up to 4k @ 144Hz, so it's the better option for PC gamers with high-end graphics cards.