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If you are interested in improved speed & distance tracking, take a look at this: http://fellrnr.com/wiki/GPS_Accuracy

There are some foot pods that will outperform GPS.

They don’t in real running. After seeing his page I got super excited. They’re really accurate at the pace you csalibrate them too, then drift quickly once that pace changes. So if you camlivrat them at 7:30min/mile, then run 8min/mile they’re pretty far off. Especially if you’re a distance running, or looking for accurate pacing. I’ve tested it both on marathons and tracks.

All current running watches and phone software uses single point calibrations. Now if they curved fit 2 or 3 points....

Stryd is a calibration-free technology. Motion capture technology is used to precisely track the movement of the foot at different running speeds & on different terrains.

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