Features: [Exquisite Workmanship] 3D curved glass with high screen resolution, shows clear and vivid picture details. The side key is comfortable to use with CD pattern. Skin-friendly removable silicone strap, ensures wearing comfort. [Temperature Monitor] With high precision sensor, F37 offers fully automatic body temperature detection, and abnormal temperature alarm. [Health Monitor] Automatically monitor and record your heart rate, blood pressure, blood oxygen and sleep data, helping you adjust yourself for a healthier lifestyle. [User-Defined Watch Faces] There are a large number of stylish dials to choose from on the APP. You can also customize exclusive dial with your own photos. [Daily Use Functions] F37 provides multi-sports modes for more effective exercise and multiple reminders, such as alarm, sedentary reminder, drinking water and taking medicine reminder, making life healthier and more convenient. [Smart Reminder] After connected to the phone, it will provide synchronous display of message, call or social APP to remind you of important information. [Multi-Language Supported] 16 kinds of languages are supported to meet different language users\' needs. [More functions] Breath training, Music control, Remote camera, Weather, Brightness adjustment, Stopwatch, Flashlight, Find phone, etc. Parameters: Screen: 1.69 Full-touch screen Resolution: 240 * 280 BT: 5.0 Compatibility: Android 4.4 and above or iOS 8.0 and above Battery Capacity: 190mAh Charging Time: about 2H Standby Time: 10-15 days App: JYoupro Bracelet Language: English, Chinese, Spanish, Portuguese, German, French, Russian, Polish, Italian, Thai, Dutch, Czech, Turkish, Malaysian, Slovak, Japanese APP Language: Simplified Chinese, traditional Chinese, English, Spanish, Japanese, French, Russian, Arabic, Hungarian, Hindi,German, Italian, Czech, Polish, Dutch, Portuguese, Slovak