The present invention includes a sensor device which is worn on a user's body, acquires and outputs positioning data including geographical position information of the moving user, and measures and outputs motion data regarding the motion status of the body, a wrist device which controls the operation of the sensor device, and a data processing section which obtains a first movement track indicating the user's positional change based on the positioning data outputted from the sensor device and a second movement track indicating a relative change of the user's position based on the motion data, deforms the second movement track based on a comparison between the positions of the first movement track and the second movement track at the same clock time in the first movement track and the second movement track, and obtains the user's moving distance from a track after the deformation processing on the second movement track.