Why Garmin records less elevation gain!
I record my bike rides on Garmin Vivoactive and then sync it with my Strava account. I notice that I normally get anywhere up to 40% less number than my fellow cyclists who record rides on Strava Mobile App. I posted this to couple of forums on WhatsApp, Facebook and went through some blogs, other online content. But nothing was conclusive. So I decided to do my own research. To get the elevation profile a device has to keep recording elevation data at frequent intervals. There are two important things to do this. Accuracy of the elevation data each time it is recorded How many data (stamping of GPS & Elevation) is taken/stamped for a particular distance Accuracy of the elevation data There are two way elevation data is captured by devices. GPS Positioning GPS Positioning also has elevation data tagged. So with attitude and longitude devices also get elevation data Barometer Some devices and some phones have Barometer. Barometer can measure atmospheric pressure ...