Keep Your Fitness Goals On Track With The Bios Living Exercise Tracker. Track Steps, Calories Burned, Distance And Much More With The Free App. The Bands Built-In Optical Heart Rate Monitoring Technology Offers Heart Rate Information In Real Time. Know Your Limits Or Push Yourself Further, All The Information You Need Is On Your Wrist. This Product Features 24/7 Activity Tracker, Sports Mode With Speed, Distance And Target And A Sleep Monitor. It Also Features A Continuos Wrist-Based Heart Rate And Zone, Counts Calroies And Stpes, And Is Ipx7 Water Resistant.