We have disclosed systems and methods for portable performance monitoring of an individual during a physical activity. The systems and methods may include a heart rate sensor configured to collect heart rate data of the individual while engaged in the fitness activity. The systems and methods may also include a processor and a memory operatively coupled to the processor and storing computer readable instructions that, when executed by the processor, cause the system to determine heart rate information based on the heart rate data. The systems and methods may also include a wireless wide area network transceiver for communicating the heart rate information to a remote computer. The systems and methods may also include a portable performance monitoring device that may have a display screen that may be configured to display the heart rate information to the individual.
