Why is my Instinct solar's altimeter so accurate when I'm at the coast meanwhile there would be a (+/-) 20m error when I'm at my residence which is 2km away from the
Barometric Altimeter is frustrating - vivoactive 3 Series - Health & Wellness - Garmin Forums
Barometric Altimeter Calibration on Venu or vivoactive 4 Series Watch | Garmin Customer Support