Specification:  Color: Black, Blue, Pink, Dark Blue.  Chip: Telink8251.  Bluetooth Version: BT 4.0.  Compatible OS: Android 5.0 or above , iOS 9.0 or above.  Operating Mode: Full Touch Screen.  APP Name: Happy Sports.  App Language: English, Portuguese, Spanish, Italian, French, German, Danish, Russian, Ukrainian, Turkish, Hungarian, Czech, Polish, Japanese, Korean, Thai, Simplified Chinese, Traditional Chinese.  Waterproof: IP67 waterproof.  Heart Rate Monitor: Support.  Blood Pressure Monitor: Support.  Blood Oxygen Monitor: Support.  Other Functions: Support Alarm,Calender,Sedentary reminder,Camera remote control,Anti-lost.  Sensor: G-sensor, Heart Rate Sensor.  Screen Size: 1.3inch.  Type: IPS.  Resolution: 240*240 pixels.  Battery Capacity: 150 mAh.  Standby Time: About 10 days.  Using time: About 5 days.  Charging Time: About 2 hours.  Charging Type: Magnetic charging.  Band Material: Silicone.  Length: about 132+96mm.  Width: about 20mm.  Product size: about 47.4*34.6*11.7mm.  Product weight: about 33.3g.     Package: 1*Smart Bracelet.  1*Charging Cable.  1*User Manual