Originally Posted by
biker128pedal
Aoeey for the confuse. I’ve found the Garmin GPSs are off unless one uses a wheel sensor. Except a friend has one of those Garmin watches and on his wrist in the woods it was accurate. But you are correct it is reason to get use a device with a wheel sensor. In this case it’s hard to believe Strava on a phone would be that far off.
For what it's worth, I have Garmin's fancy GPS watch with maps and everything. GPS accuracy is better on a 10 year old Edge bike computer. Not by much but enough to see if you look at the tracks. I think moving around on the wrist (now it's facing the sky now it's facing away) doesn't help.