Built-in 90mAh battery, working time is about 7 days, standby time is about 15 daysIP67 waterproof and dustproof (you can wear it in the rain, wash your hands and take a shower, but don&39;t put it in hot water)Blood pressure oxygen and heart rate monitorSmart call, message and SMS reminders will be sent to the wristband display with a vibration alertMultiple sports modes, APP operation to view pedometer, calories, distanceSupport iOS 8.0 and above and Android 4.4 and aboveMore functions: sleep monitor, blood pressure oxygen/heart rate monitor, exercise monitor (steps, distance, calories), pedometer, message synchronization, incoming call, alarm clock, vibrationSpecification:Screen: 0.96-inch color touch screenHardware platform: NRF51802RAM: 32KBWaterproof grade: IP67Battery capacity: 90mAhWorking time: about 7 daysStandby time: about 15 daysNotes:Wearable devices monitor human activities through electronic sensors. The data is normal to have some deviations. Users should treat data objectively. Please do not compare it with hospital equipment, it is not a medical equipment.Before use, please scan the QR code on the manual to download the app, and then connect the watch to your phone with APP.Package included:1 x Smart Watch1 x Charging Cable1 x English and Chinese User Manual