Pressure compensating button

A button assembly comprising:

• a depressible interface exposed to an external environment;
• a lever isolated from the external environment, the lever including a fulcrum;
• a first piston having a first size, the first piston exposed to the external environment and extending from the depressible interface to exert a first force on the lever at a first contact point;
• a second piston having a second size, the second piston exposed to the external environment and configured to exert a second force on the lever at a second contact point, the second force configured to reduce the first force;
• and
• a tactile switch.

A pressure compensation system for an electronic device, comprising:

• a housing defining:
• an internal volume;
• a piston aperture;
• and
• a reference aperture;
• a button assembly comprising a piston extending through the piston aperture into the internal volume;
• and
• a differential pressure sensor configured to measure:
• a first pressure within the internal volume;
• and
• a second pressure of the reference aperture.