Description Here comes the S19 Smart Bracelet! With this smart bracelet, you can instantly receive and respond to your favorite messages, get the exercises data you need to stay active and healthy. When you wear it to do exercises, all these data can be synchronized and analyzed on your mobile phone which helps you know your sport data more clearly! To live a healthy life, buy it for yourself, parents and friends! It's our pleasure to help you live a funny and healthy life. Main Features: - Bluetooth Synchronization With Bluetooth 4.0, this smart bracelet is available for smartphones with Bluetooth functions - Professional Heart Rate Detection Whether you are resting or doing sports, detect your heart rate accurately - Sport Monitor This smart watch can record steps, calories and distance, so you can know your sports data, adjust your exercise program and live a healthier life - Sleep Monitor Accurately monitor total effective sleeping time and motion time every night, helping you develop good living habits - Sedentary Reminder Develop scientific habits and effectively resist sub-health Functions: Alarm Clock,Message,Call reminder,Calories burned measuring,Date,Smart Track,,Measurement of heart rate,Sedentary reminder,Pedometer,Sleep management,Time Notes: 1. Be compatible with Android 4.3 or above; for iPhone ( iOS 8.0 or above ) Bluetooth Version: Bluetooth 4.0 LCD Screen: 0.896 OLED 96*96 People: Unisex table Screen: Yes Screen type: OLED Compatible OS: Android,IOS Compatability: Android 4.4 / iOS 7.1 and above system Battery Type: 70mA Lithium polymer battery Battery Capacity: 70mAh Charging time: 2hours Charing: 5V USB MICRO Charging Cord Shape of the dial: Rectangle Color: Black;Silver Band material: Metal Language: simplified Chinese, English, Italian, French, German, Russian, Arabic, Spanish, Portuguese,Hindi Lifespan: 5000 times Waterproof standard: IP54 Package Contents: 1 x Bracelet 1 x Charging Clip 1 x User Manual