Talking to the Oculus Connect developers conference, Zuckerburg demonstrated a prototype stand-alone VR headset and he mentioned the world “affordable”.

The main feature of the new prototype standalone headset was its positional tracking. In fact it was a modified Rift with a compute module embedded into the back. This positional tracking technology allows the headset to understand where it is in physical space and adjust the onscreen content.

Positional tracking allows you to walk through an experience and see it from every angle. Zuckerberg said development is still incredibly early, but that it’s on the product roadmap.

Positional tracking has previously only been available on the major high-end VR headsets including Oculus’s Rift headset, the HTC Vive and PS VR, but with this announcement Oculus is closing the gap between mobile VR experiences and their high-powered counterparts.

Positional tracking on mobile is a technology it is rather hard on the battery and it was a difficult problem to fix. There were no details given a potential launch date either.