Thanks interesting comparaison indeed! Just one question Wander_ What was the firmware version on your F5X at the time of this comparaison? 9.2 or 10.5x? Thank you for your return.
ps: i also just read that for elevation it might help to lock the barometer in altimeter mode, in the barometer option, under wacth mode > Altimeter , rather than being by default in auto, cause he will try to understan if changes in pressure occur cause of a storm coming or because you gain in altitude. This can mess up the elevation. So if you dont care about weather storm alert, put in on OFF and lock the barometer watch mode on altimeter.
now i am on beta 10.52 and it's getting worse. i decided to wait and try the next official firmware. if the elevation problem will not be fixed by than, i have to assume that i have a faulty fenix 5 and i will contact garmin to exchange my fenix 5. the fenix is useless with this kind of results.
today i did a flat cycling tour and here are the results for elevation gain:
fenix 5: 61 m
garmin connect online with correction: 135 m
runtastic: 140 m
...why does garmin not use the gps data to calculate the elevation and just disable the elevation sensor?