Portable biometric monitoring devices having location sensors

A wearable biometric monitoring device, the wearable biometric monitoring device comprising:

• communication circuitry, the communication circuitry configured to receive ephemeris data from a secondary device associated with the wearable biometric monitoring device via a wireless short-range, low-power communication protocol and output the ephemeris data to a controller;
• and
• the controller comprising one or more processors and a memory, wherein the one or more processors, the memory, and the communication circuitry, are communicatively connected and the memory is configured to store ephemeris data and program instructions for controlling the one or more processors to:
• (a) periodically and automatically syncing the wearable biometric monitoring device with the secondary device, wherein the periodic and automatic syncing comprises obtaining, for a plurality of instances, current ephemeris data from the secondary device according to a schedule,
• (b) determine that a global position of the wearable biometric monitoring device should be calculated, and
• (c) calculate the global position using the current ephemeris data obtained in (a), wherein at least some of the syncing is conducted when the wearable biometric monitoring device is not determining the global position of the wearable biometric monitoring device.

A method of determining a global position of a worn biometric monitoring device, the worn biometric monitoring device comprising a navigation data receiver and one or more biometric sensors, the method comprising:

• (a) receiving biometric data from the one or more biometric sensors and using the biometric data to calculate a biometric performance measurement selected from the group consisting of calories burned, step count, heart rate, ambulatory speed, blood pressure, blood glucose, skin conduction, body temperature, sleep data, and stairs climbed;
• (b) obtaining position fixing data from one or more navigation satellites with the worn biometric monitoring device via the navigation data receiver using wireless communication;
• and
• (c) providing the position fixing data via a wireless short-range, low-power communication protocol to an associated secondary device so that the secondary device can calculate a global position of the wearable biometric monitoring device.

A system comprising a wearable biometric monitoring device, the wearable biometric monitoring device comprising:

• one or more biometric sensors, the one or more biometric sensors configured to output biometric data to a controller;
• communication circuitry, the communication circuitry configured to output data to a secondary device associated with the wearable biometric monitoring device via a wireless short-range, low-power communication protocol and receive a global position from the secondary device;
• a navigation data receiver, the navigation data receiver configured to receive the position fixing data from one or more navigation satellites using wireless communication and output the position fixing data to the controller;
• and
• the controller comprising one or more processors and a memory, wherein the one or more processors, the memory, the communication circuitry, and the navigation data receiver are communicatively connected and the memory is configured to store program instructions for controlling the one or more processors to:
• (a) receive biometric data from the one or more biometric sensors,
• (b) use the biometric data to calculate a biometric performance measurement selected from the group consisting of calories burned, step count, heart rate, ambulatory speed, blood pressure, blood glucose, skin conduction, body temperature, sleep data, and stairs climbed,
• (c) obtain the position fixing data from the one or more navigation satellites via the navigation data receiver,
• (d) provide the position fixing data to the associated secondary device via the communication circuitry so that the secondary device can calculate a global position of the wearable biometric monitoring device, and
• (e) receive the global position from the secondary device.