How to set Compass/Atmospheric Pressure/Altitude?
Amazfit GTR supports the compass function. When the compass page opens, the watch automatically detects the current orientation and degree. If needed, you can wear the watch and calibrate the compass by filling out that circle with figure 8 movements in the air, until the watch vibrates. Then the compass function can be reused.
Sliding up on the compass page can enable you to enter the atmospheric pressure page. The barometer on the watch displays the atmospheric pressure in real time.
Sliding up on the atmospheric pressure page can enable you to enter the altitude page. The altitude requires double calibration of the watch barometer and GPS. If you want more accurate altitude data, get the satellite positioning in an open area as soon as possible.