I run with a group on a regular basis and use a Garmin Vivoactive 4s to track my run. Other members of the group use Apple watches etc. My watch always maps my run as longer than everyone else by about 1/2 mile! Anyone else experienced this? Is there anything I can do to correct it?
Distance discrepancies.: I run with a group on... - Bridge to 10K
Distance discrepancies.
That's quite a lot, I had a vivoactive 4s and it was about the same as my friends Apple watch when we ran together, have you input your stride? I have mine set to auto stride, not sure that would make a difference as both Garmin and Apple have GPS.
More recent Garmins have really good GPS, much better than most Apple watches.
Do your runs involve stretches under trees, in "urban canyons" or have lots of turns?
If you compare the GPS traces from your watches and theirs, do you notice theirs cut corners a lot? On longer runs that can really add up.
My old watch (vivoactive3) usually measured my local parkrun (four laps with tree cover and lots of turns) well under 5km, but my current one (Forerunner955) measures it as over 5km.
Both measured the beach parkrun I do perfectly, because that's a gentle curve along a bay with an unobstructed sky view.
My Garmin under records too, but not by much. My friends Apple watch over records, and her times are much faster even when we run together. I've asked to use her watch for a race, I could get a PB 😜If you have Strava, you can use their "correct distance" tab to iron out any inconsistencies. (Its three dots on the left of the screen. Click on that and the menu comes up)