Seeing double? Show the grid, then adjust Image spacing until the two rings merge into one relaxed image. With PC controls active, [ moves them closer, ] farther apart, and C returns to the game. Fit saves on this PC.

Image spacing sets the distance between the lens centers as a percentage of the full screen width. 3D eye separation changes depth. Phone fit controls do not change a WebXR headset’s own calibration.

The Pixel 10 / Daydream fit is a starting point, not a measured viewer profile. Center the phone in the viewer. The game pauses during alignment. The preview runs at up to 10 fps; the headset renders independently.