Question: what is the difference between the xbox 1s and 1x?
Answer: The Xbox One S is capable of 4K, just not "native" 4K. ... The Xbox One S even "upscales" games to 4K resolution. The difference with the Xbox One X is there is no "upscaling" — essentially stretching an image to a higher resolution. Instead, it's powerful enough to process 4K and HDR directly.