A few days ago I played fetch with a robot. I threw a ball, and the robot — named Bridget — zoomed around one of our meeting rooms trying to retrieve it, along the way dodging a table, a box, and a chair. When the game was over, I took off the headset I was wearing and endured a brief moment of panic — because Bridget was gone.

San Francisco-based Occipital is one of the many companies that wants to bring inside-out tracking to mobile VR, but its means of doing so stands apart from others.

IF YOU’VE BEEN holding onto your trusty iPhone 6, 6S, or 7 and wondering when a cool VR headset will be available for it, this is your lucky day. The Occipital Bridge headset looks like it’s well worth the wait, as it’s more powerful than any other phone-driven headset on the market.