My experience of using Strava on a mid-range Android phone several years ago was that readings were splayed horizontally across (road-side) paths by five or ten

My experience of using Strava on a mid-range Android phone several years ago was that readings were splayed horizontally across (road-side) paths by five or ten meters in many cases. Now that I have a Garmin watch, I am gradually closing in on my former Estimated Best Efforts with readings that appear to be much more accurate in terms of how they correspond to the paths that I've been running on.