We've seen what's inside an Xbox One. What about the Kinect it comes bundled with? That part of the hardware has bits and circuits in it, too!
And now, thanks to iFixitYourself, we can see what's inside the new Kinect. They also break down some of what's changed from the first Kinect, too—like for instance, did you know that the Xbox One's Kinect has two cameras, versus the 360's three cams?