Under Armour’s New Armour39 Willpower Monitoring System Scores Your Workout Based On Heart Rate, Calories and Intensity

Back in 2011, Under Armour first announced its Armour E39 shirt, an activewear garment that tracks its wearer’s vital workout stats with a tiny electronic device.

Now, the company has invited customers to pre-order the system, which has dropped the E and become Armour39. The system is comprised of a “module” (the electronic device), chest strap, mobile app and optional display watch. The unisex chest strap, which is adjustable from 27″-52″, can be worn under any workout clothing; you don’t need to purchase a specific Under Armour shirt to use the system.

The module stores your biometric info—including heart rate, calories burned, real-time intensity, and “Willpower” (a 1-10 rating calculated using these biometrics). The data is transmitted automatically via Bluetooth in real-time to the Armour39 App (coming soon) or Watch (sold separately). The module stores up to 16 hours of workout information, and transmits within 15 feet of your Bluetooth-enabled mobile device. With the app’s calendar, athletes can compare daily workouts and track improvements and trends over time.

You won’t need to charge the module, which runs on a standard CR 2032 3V watch battery that lasts up to 9 months (remove the module from the chest strap after your workout to preserve battery life).

The Armour39 module and chest strap will run you $149.99; the watch is $199.99. Both will be available in “Spring 2013.”