The LG OLED G5 outperforms the Sony Bravia 9 65 in contrast and motion handling with its 144Hz OLED panel and perfect blacks (per RTINGS and CNET tests), while the Sony excels in bright-room HDR with higher peak brightness and better upscaling via its XR processor. The LG is the stronger pick for cinematic viewing in controlled lighting, but the Sony suits well-lit spaces better.