Feature: 1. Automatically monitor and record your heart rate, blood pressure and sleep data, helping you adjust yourself for a healthier lifestyle. 2. After connected to the phone, it will provide synchronous display of message, call or social APP to remind you of important information. 3. The bracelet and mobile phone can be searched in both directions. 4. Compact and lightweight, comfortable to wear on wrist. Enjoy sports freely. 5. More functions: Step, Distance, Calories, Sedentary reminder, etc. Specification: Features: * Automatically monitor and record your heart rate, blood pressure and sleep data, helping you adjust yourself for a healthier lifestyle. * After connected to the phone, it will provide synchronous display of message, call or social APP to remind you of important information. * Compact and lightweight, comfortable to wear on wrist. Enjoy sports freely. * The bracelet and mobile phone can be searched in both directions. * More functions: Step, Distance, Calories, Sedentary reminder, etc. Parameters: Screen: 0.96" Single-touch Screen Resolution: 80 * 160 BT: 4.0 Compatibility: Android 5.0 and above or iOS 9.0 and above Battery Capacity: 50mAh Standby Time: 15 days App: Fit-here Specifications: Model: M4 Material: ABS Color: Black / Red / Blue (Optional) Water-Resistant Level: Life Waterproof Dial Size: 42 * 17.9mm Dial Thickness: 12mm Package Size: 13 * 7.7 * 2.8cm / 5.12 * 3.03 * 1.1in Package Weight: 38g / 1.34oz Note: * Please read the user manual carefully before using this product. * There may be slight difference in color due to shooting angle and light. Please refer to the real object. * The bracelet can be worn for daily water splashing, NOT for swimming or bathing. Package List: 1 * Smart Bracelet 1 * Charging Cable 1 * User Manual Package List: 1 * Smart Bracelet 1 * Charging Cable 1 * User Manual