Xiaomi Mi Smart Band Fitness Tracker & Activity Tracker (AMOLED Display, SpO2 Tracking, Sleep Monitor, Heart Rate Monitor, Notifications, Pedometer, 5ATM Waterproof, Mi Fit App)

Overview Operating system: Android Wear 2.0 Memory storage capacity: 12 GB Special feature: Heart Rate Monitoring Battery capacity: 125 Milliamp Hours Connectivity technology: Bluetooth Wireless commu...