Hello,
I am a recent owner of a Garmin 520, used for cycling.
I am observing a systematic mismatch between the altitude shown on the 520 when doing the race (which is correct), and the altitude reported by Garmin Connect on the altitude screen.
Typically, I am regularly passing at a point where the 520 says 1218 meters, which is perfectly correct, and regularly, Garmin Connect says that this point is at 1185 meters, which indeed is wrong.
I tried activating the altitude correction in Garmin connect, no change.
Can someone explain what is wrong ?
Thanks for helping