The supercharged machine - as Microsoft calls it, the world's most powerful console ever - will launch worldwide on 7th November. It'll cost £449/€499/$499/CAD 599/AUS 649.
As expected, all Xbox One accessories and games will work with console. Current games will look better and load faster.
Games like Halo Wars 2, Minecraft, Final Fantasy 15, Resident Evil 7, Rocket League and Ghost Recon Wildlands are getting 4K updates.
Inside, it has a liquid-cooled vapour chamber to power the device.
It's also the smallest Xbox console ever - smaller than Xbox One S.
Introducing Xbox One X pic.twitter.com/SZdnut6WFx— Larry Hryb @ SDCC (@majornelson) June 11, 2017
Clearer image pic.twitter.com/mglUbsTNO6— Wario64 (@Wario64) June 11, 2017