So I have a weird issue where MapMyRun and the Garmin app are recording my runs with differences even though they are both using my iPhone 13 gps. For example, Garmin/vivosmart5 will say 3.11 miles ,but MapMyRun says 2.88 miles. Also Google maps will say my route is around 2.88 miles as well. Why is the vivosmart5/Garmin app over estimating my runs by a significant distance. Is there some extra feature I can turn off or on to fix this? This is really annoying.