How can my smartphone usually guess accurately if I am running very slowly as opposed to walking very quickly?
A question about smartphone tracking
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Answers ( 1 )
You bounce to some degree when running.
Cell phones started including accelerometers well over a decade ago- every model of the iPhone has included one.
These devices measure changes in acceleration as well as directional changes, aided by the gyroscope. They are used to detect when your phone or tablet is being rotated so your screen can be rotated.
Walking involves a smoother sweeping sort of bodily motion than running. Running involves an up and down motion - runners frequently try to reduce their bounce to minimze their chances of injury.
https://sunriserunco.com/do-you-bounce-when-you-run/