1. The heart rate monitor can accurately record activities throughout the whole day. Precise algorithms can perform more scientific exercises.2. Built-in GPS and heart rate monitor: Track your running path and monitor your heart rate without a phone
3. Professional sports reports: maps, heart rate, calories burned, distance, speed, pace, training effect, recovery time and recommendations...etc.
4. Waterproof: last all day, rain proof, shower proof and even swim proof.
5. Brave style, scientific seamless sleep tracking and convenient and powerful app