AR glasses with a gyroscope

Gyroscope

— a sensor for tracking the device's rotation around the axes: left-right, up-down, head tilt, and change in gaze direction. In practice, a gyroscope is useful for games, watching videos on a virtual screen, navigating menus with head movements, and working with AR elements that should remain fixed to the gaze direction. Unlike an accelerometer, which is better at capturing acceleration and tilt, a gyroscope more accurately understands rotation, so these sensors typically work together.