Feature: 1. New Fashion and Design: A unique steel bezel that you can rotate to access apps and notifications. 2. Built-in Bluetooth: 3 hours smart watch built-in Bluetooth 4.0 connection mobile APP compatible operating system Android 4.4 / iOS 8.0 and above all at the tip of your smart watch 3. Waterproof Design: Use smart sports watch enjoy swimming wash your hands and walk in the rain. (Note: warm water or hot water is not allowed). 4. Multi-function application: Heart rate monitor pedometer calorie counter time clock calendar stopwatch countdown timer etc. to bring you more convenient and comfortable outdoor sports. 5. Comfortable and durable: Smart watch is suitable for your wrist light weight comfortable to wear. High quality materials impact resistance and wear resistance make this smart watch more durable. It is the perfect choice for sports and daily use. A gift for a lover. Specifications: Glass: Corning Gorilla Glass 4 Compatible operating system: Android 4.4 / iOS 8.0 and above Bluetooth version: Bluetooth 4.0 APP language: English Portuguese Russian Spanish Italian French Dutch Polish Korean Japanese Size: about 172 x 120 x 30mm / 6.77 x 4.72 x 1.18in APP: WearHealth Screen size: 1.22 inches Type: IPS Resolution: 240 x 204 Battery capacity: 180mAh Standby time: about 168 hours Charging time: about 1.5 hours Sensor: heart rate monitor proximity sensor accelerometer Belt material: TPU Length: about 26mm / 1.02Inch includes: 1 x Smart watch 1 x User Manual 1 x Charging cable