1, Precise compass and tell you the direction
2, Map helps you get accurate location and navigate for you
3, Altimeter measure your current height that above the sea level
4, Sharing feature can help you to send current position with picture and words to your family members or friends, then you will be found easily
Continued use of GPS running in the background can dramatically decrease battery life.
Just downloaded, and no screen except map seem to be working. I have “opened” from the app which loads the map and altitude, but not the compass. Nothing about the compass indicates the correct orientation. I will delete shortly.