Daily activity tracker Help track your workouts like steps, distance, calories burned, sleep quality, sedentary reminder, etc. Support smart notification function Support smart notification, never miss your phone call, text and social message with the notifications. Compatible with Android and iOS devices Compatible with iOS 8.0 or above and Android 4.4 (with Bluetooth 4.0) or above devices. HD display with touch button 0.96 inch OLED touch screen design, easily read the step counting, calorie, time, etc. IP67 waterproof rate Design with IP67 waterproof for good waterproof performance. For daily waterproof use only, not suitable for swimming or diving.