The Xbox One's got more multimedia, and the Kinect is kinda part of that multimedia thing. It's not useless for gameplay, there's a few cool uses in titles like Battlefield 4 and Dead Rising 3, but not much other game incorporation yet.
But, yeah, other than multimedia/ Kinect, they're pretty much the same.
EDIT: plus what Horridhal said.
"You're using the wrong words to express your still incorrect thoughts" -Foxx3k