Specifications: The intelligent vibration reminds you of the upcoming call or message. Has health function of heart rate and sleep monitor. Easy to use 0.96 inch TFT single point touch control. Strap material: Silicone Battery: 90 mAh battery (included)Bluetooth: 4.0 Support system: for Android / iOS Functions: pedometer, Distance, Calories, sedentary reminder , Heart rate monitor, Sleep monitor, call / message reminder, alarm clock, remote camera shutter, phone detector, OTA update, etc. Features: touch screen, multifunctional, Bluetooth connection Package Includes: 1 x Smart Bracelet 1 x User Manual