The G1's Evo panel, as I mentioned in that review, doesn't deliver a major brightness advantage over other LG OLEDs, including the C1. I wasn't able to compare it directly to the G1 for this review, but according to my measurements as well as my comparisons of both panels to the CX from 2020, the C1 and G1 have nearly identical image quality. The C1 is a superb performer, every bit as capable as the best TVs I've reviewed.
The best LCD TVs I've reviewed so far scored a 9 in image quality, while OLEDs TVs like the C1 have scored a 10.OLED display technology is fundamentally different from the LED LCD technology used in the vast majority of today's TVs, including Samsung and TCL's QLED models.
The C1 also lacks a far-field mic for hands-free voice and a Next-Gen TV tuner, both relatively minor extras included on the G1. The C1 also has more sizes than the more expensive G1 series, which offers that Evo panel and a slimmer, wall-mount-centric Gallery design.The A1 lacks HDMI 2.1 and has a less impressive processor, as well as fewer HDMI inputs (three instead of four) and a 60Hz refresh rate. The C1 has more sizes than LG's least expensive OLED TV, the A1 series, as well as better image quality features.