I really liked the new Xreal glasses because of the built-in head tracking. But I was getting a lot of drift over time such that after anywhere between a few minutes and maybe half an hour, the center of the screen wouldn't be straight ahead anymore. Meaning I would need to reset the display location far too often. I ended up returning them because of it.
Oh ick. That's not so good. Hope they can firmware-update their way out of that. It's odd that they've got that problem because my experience with the tracking on the Airs with the desktop software driving it has been pretty much fine.
