The miCoach Speed_CELL is sold separately. ORDER It HERE.

Football is faster than ever before and the need for speed has never been greater. Now powered by miCoach, the adizero f50 is not only the fastest boot on the planet, it is also the smartest. miCoach turns the adizero f50 into the ultimate digital training tool
by letting you track and upload performance data including speed, maximum speed, number of sprints, distance, distance at high intensity levels and time.

The adizero f50 boot includes a cavity in the outsole unit which houses the revolutionary miCoach SPEED_CELLTM. The miCoach SPEED_CELLTM captures 360 movement and measures key performance metrics including speed, average speed (recorded every
second), maximum speed (recorded every five seconds), number of sprints, distance, distance at high intensity levels, steps and stride rates. The on-board memory stores all your measurements during your game or training for up to seven hours and then
wirelessly transmits the on pitch performance data to your iphone or iPod.