About this item PurePulse 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). Splash proof. Do not shower with the device or submerge it in water See call, text and calendar notifications on the OLED display; Automatically track how long and how well you sleep and wake with a silent vibrating alarm. Reminders to move Get a better understanding of your fitness level…