KEY FEATURES:
Pure pulse continuous, automatic wrist-based heart rate tracking to better measure calorie burn all day
Maximize your workouts using simplified heart rate zones (fat burn, cardio and peak)
See call, text & calendar notifications on the old display; automatically track how long and how well you sleep and wake with a silent vibrating alarm
Get a better understanding of your fitness level and see how you can improve over time with a personalized cardio fitness score; use connected...