0.96inch Multi-sport Band Heart Rate Blood Pressure Oxygen Intelligent Remind Smart Watch - When you need to use the heart rate monitoring , you should first switch the screen to the Heart Entry interface, and then have a long touch on the bottom of the screen , it will switch into the HR UI display and work soon. After about 30s it will shake and display the data. Pleasehave a long touch to return to the previous interface. - When you need to use the blood pressure / blood oxygen monitor, you should first switch the screen to the Signs Entry interface, and then have a long touch on the bottom of the screen, it will switch into the blood pressure / oxygen monitor UI and work soon. After about 30s it will shake and display the data. Please have a long touch to return to the previous interface. Color:Black,Blue,White,Red BluetoothVersion:BT 4.0 or above Compatible OS:Android 4.4 or above,iOS 8.0 or above APP Name:WearFit App Language:Russian,Hindi,German,Italian,Japanese,French,Polish,Thai,simplified Chinese,traditional Chinese,English,Portuguese,Spanish,Korean Special Features:Waterproof IP67,Heart Rate Monitor,Support Blood Pressure Monitor,Support Blood Oxygen Monitor,SupportSleep Monitor,Support Multi-sport Modes,SupportPedometer,SupportCall or message Reminder,Support Reject Call,Support Alert TypeVibration,Auto Light-up Screen Technical Parameters Sensor: G-sensor, Heart Rate Sensor Screen Size:0.96 inch Type:TFT Color Screen Resolution: 80 x 160 pixels Battery Battery Capacity: 85 mAh StandbyTime:About 7 days Using time: About 4 days Charging Time:About 2 hours Charging Type: Clamp charging Band Material:TPU Length:about 255 mm Width: about 18 mm What's in Box:1*Smart Bracelet 1*Charging Cable 1*User Manual