Xbox One has issues with 1080p, PlayStation 4 really does not. Sony has mentioned a software update to the PS4 to enable 4K video output for video streaming like Netflix which supports 4K. Currently PC is the only platform which supports 4K gaming because of the more flexible hardware add-ons a user can install. Besides, 4K monitors/TVs are expensive and files are just too large to fit into a physical disc. 4K can currently only be streamed. I think PS5 and the next Xbox will definitely support 4K, however.