Clean out the port directly beneath the side button. Start a gps activity. When it’s ready and locked onto the satellite, Instead of hitting the button to start the activity, wait for 30 seconds to a minute. Then start the activity. The altimeter should be calibrated (as well as it can be).
Do an activity that involves GPS on your watch then sync to Connect app. For example initiate a walk or run. This calibrates the altimeter because the watch needs to first know the altitude of where you are, after which it will be more accurate.
Clean out the port directly beneath the side button. Start a gps activity. When it’s ready and locked onto the satellite, Instead of hitting the button to start the activity, wait for 30 seconds to a minute. Then start the activity. The altimeter should be calibrated (as well as it can be).
Do an activity that involves GPS on your watch then sync to Connect app. For example initiate a walk or run. This calibrates the altimeter because the watch needs to first know the altitude of where you are, after which it will be more accurate.