This is a multi-functional smart bracelet. It has a 0.96-inch TFT screen. It is compatible with iOS 8.0 and above, Android 4.3 and above. It will give you great experience! Features: 0.96inch TFT screen, easy to see. Classical dial design shows your charming. Support heart rate monitoring and sleep monitoring. Remind you if there is a message or a call coming. Easy to use and great for running and outdoor sports. Durable and comfortable to wear. Support BT 4.0, Android 4.3 and above, iOS 8.0 and above. Water resistant: Daily water resistance (not for showering and swimming). Functions: Time, step count, heart rate, blood pressure, calorie, BT, information reminder, application, sedentary reminder, sleep monitoring, alarm, multiple language. Parameters: Chip: Cortex MO Kernel DA14585 Screen: 0.96inch TFT BT: BT 4.0 Compatibility: with Android 4.3 / IOS 8.0 and above : USB charging Battery: Polymer lithium battery Battery Capacity: 90mAh Working Time: about 7 days Standby Time: about 10 days Language: Chinese, English, Spanish, French, Portuguese, Dutch, German, Russian, Japanese, Polish Functions: Step count, heart rate, blood pressure, calorie, BT, information reminder, application, BT camera, raise the screen, sedentary reminder, sleep monitoring, alarm. Specifications: Color: Black / Red / Purple / Dark Blue / Light Blue (Optional) Case Material: TPE Band Material: Silicone Clasp Type: Buckle Water-resistant Level: IP67 Dial Diameter: 4.3 * 1.8cm / 1.69 * 0.71in Dial Thickness: 1.2cm / 0.47in Watchband Width: 1.8cm / 0.71in Watchband Length: 24.5cm / 9.65in Watch Weight: 24g Watch Box Size: 12.5 * 8.7 * 3cm / 4.92 * 3.43 * 1.18in Watch Box Weight: 44g Notes: Support daily water resistance (not for showering and swimming). Don't press any button in the water. Package Lists: 1 * Smart Bracelet 1 * User Manual