I haven't been following Xbox products and I was surprised to see this one. I thought it was the new upgraded Xbox.. it is but it isn't. It's basically the Xbox One Slim. Its 40% smaller, larger hard drive, 4k bluray player and HDR video. Theres still another upgraded Xbox coming out in the near future that should allow 4k gameplay. This slim version is what I envisioned the initial Xbox One would have been. But instead they released that mandatory camera system with it and refused to make bluray movies play on the system unless you download an app. Probably because sony owns bluray tech. The Xbox One S came out just yesterday and now I'm wondering how much longer it'll be before we see a PS4 slim and if it'll have extra features.
http://www.xbox.com/en-US/xbox-one-s
Reference to the bluray thing:
http://support.xbox.com/en-US/xbox-one/apps/dvd-blu-ray-setup