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Agree you would need to walk 100-1000 steps to get an accurate distance measurement and then divide it by the number if steps.
My point was tha GPS is far more accurate at measuring distances rather than trying to infer it from a step count. When people walk they walk a mixture of short and long steps. What I am saying is that distance based on step count is flawed as a concept, the error range builds up very quickly - it can only be used as a rough estimate, which is all those watches will give you.
HughB
@user140377
Sorry no, unless you use e.g. RTK correction (which we don't) gps error is in the magnitude of tenfold of meters, so you just can't walk 10 meters or even less and expect to be able to calculate a reasonable stride length.