Do you need to use the nike sensor on the bottom of your foot to use the watch? and if not, what are the drawbacks, if any, from not using the sensor?
Can anyone who has the watch comment on its performance?
Do you need to use the nike sensor on the bottom of your foot to use the watch? and if not, what are the drawbacks, if any, from not using the sensor?
Can anyone who has the watch comment on its performance?