A:Answer HUGE DIFFERENCE. Peak brightness 1500 nits vs 600, 1,008 dimming zones vs 192, 120-144hz panel vs 60hz, has TWO HDMI 2.1 outputs vs 2.0, also has the Next Generation ATSC 3.0 tuner vs ATSC 1.0, and faster WiFi 6E vs. WiFi6. IF you can afford a little bit more, the U7K has all the same features with 1000 nits & 512 dimming zones for an in-between price.