Specifications: Model: X20bluetooth Version: BLE 4.0 Display: 0.96 inch TFT Color Screen Strap 
 Colour: Blue,  Red,  Grey Battery Capacity: 90m Ah Working Time: 5-7 Days Standby Time: 15 Days Compatible System: Android & i OSStrap 
 Material: Environmentally Friendly TPU
 Size: 240x 44x 20mm (Total Length x Host Dia. x Host Thickness) Waterproof: IP68 (Hand washing,  rain,  Swimming & other daily life in the water can be normal operation. Do not worry about the delay of data collection.) Main Functions: Heart Rate Monitor,  Blood Pressure,  Blood Oxygen Monitoring,  Sleep Monitoring,  Call Reminder,  Call Rejection,  Pedometer,  Distance Analysis,  Calories,  Hand Raise Light Up,  Sedentary Reminder,  IP68 Waterproof,  Remote Camera,  Messages,  Calls Reminder,  Music Control,  Alarm Clock.
 Features:1.0.96 inch Color Screen: Fitness tracker with color screen,  you can see the screen clearly in the sun or in the dark. Cool design & double-color Strap suitable for everyone.2. Wide Compatibility: Supports bluetooth 4.0,  compatible IOS & Android systems.3. Heart Rate Sleep Monitor: Check your heart rate automatically to help you do exercise scientifically. Sleep Monitor automatically tracks your sleep duration & sleep quality.4. Notification Remind: Intelligent notification be clear at a glance,  convenient & timely access to telephone,  SMS,  & all kinds of social information. You will never miss a call or message. Sedentary reminder,  remind you to leave the seat for just the right amount of exercise.5. Unique Desig