After some research, and correct me if I’m wrong,
The steam vr uses laser tracking to tell where you are in a room, which would encourage standing and moving around. It is also able to map room boundaries to stop you from walking into a wall.
The oculus uses a camera based tracking system, vs valves laser tracking. Which means the steam vr might be more expensive than the oculus.
In my mind a laser tracking system would provide far less positional latency than a camera based tracked system. In reality I think the difference is much smaller, but even a slight delay could make a difference between motion sickness and comfortable.
Master of Chunks