Relative head-tracking for user-interface element selection on a head-mounted display device

A head-mounted display device comprising:

• at least one processor;
• and
• a non-transitory computer readable medium storing executable instructions that when executed by at least one processor cause the at least one processor to:
• compute an angular distance between a previous head orientation and a current head orientation based on head movement data;
• and
• updating a position of a position indicator on a user interface displayed on a display of a head-mounted display device based on the angular distance and a gain value, the user interface configured to remain fixed to a location in the display regardless of head movements.