A:Answer Hi Mark, Thank you for your inquiry. You can't go wrong with any of these models. But it will depend on what you intend to use the TV for. The high refresh rate is just one of the features of our newest models such as the 800H and 900H have.
With X800H, you’ll experience your content as it was intended with the power of our X1 4K HDR processor, as well as enjoy rich and accurate color with our TRILUMINOS Display.
While the X900H also boasts an impressive X1 4K HDR picture processor that preserves lifelike clarity and detail as the creator intended. Our latest X-Motion Clarity™️ technology keeps everything smooth, bright and clear. Each ‘blink’ is individually controlled and its duration optimized, while brightness is boosted when needed, so you won’t miss a thing. With Full Array Local Dimming and TRILUMINOS Display, experience deeper black levels, greater contrast, and vibrant color from your favorite movies, TV shows, and games.
Hope this helps!
-Sam
