Use Compass on Apple Watch (Apple Watch Series 5 only)
The Compass app 
shows the direction your Apple Watch Series 5 is facing, your current location, and elevation.
Note: If you remove the Compass app from your iPhone, itʼs also removed from Apple Watch.
See your bearings, elevation, incline, and coordinates
Your bearing is shown at the top left. Turn the Digital Crown to scroll up and see your incline, ground elevation, and coordinates.
Open the Compass app
on your Apple Watch.For accurate bearings, hold Apple Watch flat to align the crosshairs at the center of the compass.
To edit your bearing, firmly press the display, tap Edit Bearing, then use the Digital Crown.
Note: Compass won’t display elevation or coordinates if Location Services is turned off. To turn Location Services on or off, open the Settings app 
on your Apple Watch, tap Privacy, then tap Location Services.
To use true north rather than magnetic north, open the Settings app on your Apple Watch, tap Compass, then turn on Use True North.
Note: Compass can be affected by magnetic materials in some watch bands. See the Apple Support article Use the compass on Apple Watch Series 5.