Hold , and select > Aviation.

Aviation Units

Sets the units of measure used for aviation data.

Altimeter Settings & Alerts

Allows you to configure the barometric altimeter and alert settings.

Fuel Tank Reminder

Sets an alarm to sound after a specific number of minutes and displays a message to check the fuel tank gauges.

Favorite Airport

Allows you view waypoint and METAR information for your favorite airport on the default watch face and aviation glances.