Personal training device using GPS data

A portable fitness device operable to provide triathlon performance information for a user, wherein the triathlon comprises a swimming event, a bicycling event, and a running event, the portable fitness device comprising:

• a display;
• a satellite navigation receiver operable to determine a current geographic location and a current speed of the device;
• a memory operable to store interval information and goal information for each of the triathlon events, where the interval information includes a speed range for each of the triathlon events;
• a processor coupled with the display, the satellite navigation receiver, and the memory, the processor operable to:
• identify in which triathlon event the user is currently engaged based on the current speed of the device and the interval information stored within the memory;
• calculate performance information specific to the identified triathlon event based on the current speed and/or geographic location of the device;
• compare the calculated performance information to the goal information stored within the memory;
• and
• present on the display a visual indication of the calculated performance information and the comparison of the calculated performance information to the goal information;
• and
• a portable housing to retain the display, the satellite navigation receiver, the memory, and the processor, wherein the housing is operable to be worn by the user.