Originally Posted by
Fendertele
We rode the same trail today with a large variance between results.
Wahoo ELEMNT Bolt. 220 ft
Apple Watch 7. 385 ft
i expect a difference between devices but this seems rather large. At a quick glance the elevation map profiles appear similar. Anyone know if they use different algorithms?
both devices have a barometric altimeter and GPS. what apps/software are you using to view the results? many map based systems (e.g. strava) will correct the device altitude readings based on map data. said map data varies in quality greatly, so you have three different potential altitude sources:
1) the barometric altimeter
2) GPS altitude - essentially useless
3) elevation from maps by correlating GPS location
different software will absolutely use different methods to reconcile the variation between these three sources.