The smartwatch has a large capacity and low power consumption design, which only takes 1.5-2 hours to charge, support a few days of normal use. The fitness Watch is Waterproof IP67, which allows you to swim in the pool with it with no worries. The smartwatch connects the app “Heroband III” When the phone receives a notification(like Facebook, Twitter, YouTube) you can check the specific content on the watch. Note: You can reject the call through the watch, but you can’t answer the call. Supports 8 sports modes(walking, running, cycling, swimming, skipping, badminton, basketball, football), accurately record all-day activities. You can view historical data in the app “HeroBand III”.It is convenient for you to better understand the physical state during exercise. 24 hours heart rate monitoring allows checking your heart rate anytime and better understand your heart rate trends. Sleep trackers can track your deep sleep, light sleep, and wake-up time, record nightly sleep information, and provide a comprehensive analysis of your sleep. (The monitoring data is for reference only.)