A:Answer Hello James, Thank you for your interest in the Hisense 75U6SF. The latest Hisense U6 Series (including the U6SF and U6SF Pro) delivers significant upgrades over earlier U6 models such as the U6K and U6N. Key enhancements include the adoption of Hi-QLED Mini LED technology for higher peak brightness, integrated subwoofers for improved Dolby Atmos audio, and a native 144Hz refresh rate for smoother motion. Compared to the previous-generation U6K, the current U6N introduces measurable performance improvements across brightness, sound, and refresh capabilities. Thank you, Harley, with the Hisense Support Team.
