I bought the watch in July 2023. Since the beginning of the year the watch started to register unrealistic elevation data during workouts. Sometimes over 50 meters elevation gain and even more elevation loss on a flat 4-5k run. I tried everything one can find on the internet: I washed the watch several times, tried to reset, calibrating the elevation/pressure before every run. The watch is on firmware 26.08 Still the issue persist. At the same time my old Coros Apex (from 2020) is still quite precise.
The below example is for a 2.8k almost completely flat route, out and back.
Garmin data:
Coros data:
Strava elevation data:
Something is clearly not working with the Garmin watch. This incorrect elevation data leads to incorrect performance evaluation, incorrect race predictions etc.
What can I do with this? The watch is not under warranty.
Thank you.
