I have a Vivoactive 4. When walking, the activity function on my Garmin shows the milage walked.However I also use the Ordnance Survey app to map my routes. Why is there a discrepancy between both devices on the milage covered. Depending on the distance covered, the discrepancy increases between the two devices.
Is this because the vivoactive measures the distance depending on the steps I take and my leg stride?
I have to think the OS map app is more accurate. Am I right.
Cheers