General Specification Brand Bakeey Model X3 Color Black, Blue, Sky Blue, Orange, Green, Pink, Purple Compatible OS Android 4.3/iOS 8.0 and Above System bluetooth Version V4.0 Language English, Japanese, Russian, Latin, Korean, Simplified Chinese, Traditional Chinese Weight 20g Size 238x20x10mm Special Features Waterproof IP67 Heart Rate Monitor Support Blood Pressure Monitor Support Sleep Monitor Support Sedentary Reminder Support Pedometer Support Distance Support Motion trajectory Support Calorie Support Sport Timing Support Data Statistics Support Caller Display Support Message Push Support Smart Reminder Support Alarm Clock Support Anti-lost Support Technical Parameters Sreen Size: 1.06inch Colorful Screen Type: OLED Resolution: 160*64 Battery Battery Capacity: 80mAh Working time: 5-7 days Sensor 3 axis acceleration sensor Material TPU Package Included: 1 * Bakeey X3 Blood Pressure Heart Rate Monitor Pedometer Fitness Tracker bluetooth Smart Wristband 1 * USB Cable 1 * User Manual