This smart sports bracelet made of Premium soft Silicone, non-toxic materials, Eco-friendly and safe for the human skin.It is waterproof, Anti-sweat, rainproof. Easy to install and adjust the size according to your wrist. Sports modes for specific activity can meet your needs The whole day. This activity tracker will accurately record all-day activities like steps, distance, calories burned, active minutes and sleep status, not only a pedometer or step counter. Fitness tracker can receive call, calendar, SMS and SNS notifications on display, never miss the messages that matter.