Joranlin ID105 Intelligent Healthy Smart Bracelet Bluetooth with Heart Rate Monitor Anti Lost Wake-up Sleep Monitor Call Reminder (Black) App OS:IOS 7.1 & above / Android 4.4 & above Convenient Bluetooth connection. Bluetooth 4.0 connection. Super low power consumption .Auto recongnize sleep status, track your sleep hour and sleep quality, wake you up by smart alarm Record active minutes, hours slept, quality of sleep. Records steps taken, distance traveled,calories burned Track daily activities data such as, steps, distance, calories burnt, help you reach daily fitness goal 24 hour dynamic heart rate monitor. Freely knowing your healthy status, your healthy status tracking companion,Remote camera shoot control by press the key or wrist recognition,Waterproof:Sweat proof, rain proof, water drop proof