As an avid runner, I went out and bought a Nike+ sensor as soon as I upgraded my original iPhone to a 3GS. That solution worked OK, but I think it’s lacking for me in some areas: it has to be calibrated for accuracy, works only with certain shoes and can only be used for [...]
As an avid runner, I went out and bought a Nike+ sensor as soon as I upgraded my original iPhone to a 3GS. That solution worked OK, but I think it’s lacking for me in some areas: it has to be calibrated for accuracy, works only with certain shoes and can only be used for [...]