Question: what is the difference between all the xboxes?
Answer: While both the Xbox One and Xbox One S play games natively at 1080p, the Xbox One S can upscale games to 4K resolution if you have a 4K TV. That makes for a better picture than 1080p or 720p, although it's not as good as native 4K. ... The original Xbox One does not support HDR for games or video playback.