I see treadmill distance accuracy has been discussed before, but I am having a different but related issue.
When I complete a treadmill walk, the distance is about a third of what my treadmill reads. I have entered a custom stride length for both run and walk (as I am unsure which measure the Treadmill activity uses, but still get a reading very different (one day I walked 1 hour with a distance of 3km, the next day I walked 1 hour (at the same speed) with a distance of 1.8km).
My problem is that at the end of my activity, I try to "calibrate and save" but the distances to choose from doesnt go high enough (i.e. only lets me choose km increments of 0km, 1km, 2km). Each time after my activity I will try to calibrate to my treadmill distance (appreciating that the accuracy of the treadmill distance is debatable), and if my treadmill reads 5km but my watch says 3km, the distance range under calibrate and save is only between 0-3 km - so I cant calibrate to a higher distance to match my treadmill reading.
What I end up doing is going to the Garmin Connect app (once the activity has sync'd) and changing the distance there.
Interested to hear if I am doing anything wrong or whether this is a bit of a glitch. Surely if Garmin Connect allows the greater distances to be selected, then the Calibrate and Save function on the watch should also allow this.