The present invention provides an athletic performance monitoring device having an accelerometer configured such that it can be worn by a user close to the center of gravity of the athlete; and a processing system including a global positioning system. The accelerometer is further configured such that it can wirelessly communicate acceleration data, relating to the acceleration of the user, to the processing system. In addition, the processing system is configured such that it can request acceleration data from the accelerometer only when some events depending on the output of the global positioning system and/or on a clock are occurring. It can also process the acceleration data it receives from the accelerometer to provide athletic performance information. There is further provided a corresponding method for providing athletic performance information. There is also provided an accelerometer for use in an athletic performance monitoring device.