Those are 3DOF head tracking, right? This is inside-out tracked, 6DOF and hand tracking.
But even given that the glasses have to support hand tracking and 6DOF, I think they can probably build the sensors into the glasses but compute them with the phone. Or maybe calculating hand tracking would drain the battery of a Pixel too fast or something. Not sure.
Passthrough is lame compared to real AR
looking closer, there are two lens like things, bulkier, as say compared to the hololens 2, which is my benchmark for AR/XR (bulky device, but singular lens)
The entire category is socially frowned upon right now as perv glasses because a non insignificant portion of males are utter pervs