Electronic devices with nose sensing

A head-mounted device, comprising:

• a head-mounted housing;
• optical assemblies in the head-mounted housing that are configured to move towards and away from each other, wherein each optical assembly includes a support and includes a lens and a display that are supported by the support and wherein the display of each optical assembly is configured to provide an image to an eye box through the lens;
• and
• nose pressure sensors configured to measure nose pressure as the optical assemblies are moved towards each other, wherein each nose pressure sensor comprises:
• an air pressure sensor mounted to a flexible printed circuit;
• and
• a pressure-sensing compressible air-filled chamber coupled to the air pressure sensor, wherein the pressure-sensing compressible air-filled chamber is configured to be compressed by a given one of the optical assemblies and wherein the air pressure sensor is configured to measure an air pressure change in the pressure-sensing compressible air-filled chamber due to nose pressure in response to the pressure-sensing compressible air-filled chamber being compressed by the given one of the optical assemblies.