The biggest differentiator between the Oculus Rift and HTC Vive VR headsets seems to be the Vive's ability to allow gamers to walk around inside an entire room as they play.

But Oculus could deliver that option as well if it wanted to, the company says.

"Some people will really want room scale," said Oculus head of worldwide studios Jason Rubin. "It's definitely cool. We have the tech ability to provide room scale. Our tech doesn't preclude that.

"At some point we'll demo that."

Oculus Rift ships on March 28 with a single sensor designed to track the head and upper body movements of the user. When the Oculus Touch controllers ship sometime in the second half of the year, it will include a second sensor. Those two sensors could be used to deliver a more confined version of the Vive's room scale VR. Where the Vive's two Lighthouse sensors can track movement in a 15-foot-by-15-foot area, the Rift's sensors are designed for tracking a smaller space, about 5-feet-by-11-feet.

While at least one game — Fantastic Contraption — supports room scale on the Rift, Oculus doesn't believe that room scale VR is in big demand.

"We don't believe that the consumer has the space in general," Rubin said. "Has the commercial viable space of the 15-by-15 foot square."