Smart Watch - Universal - Bluetooth Smartwatch Full Touch 1.7 on Screen Music Player Heart Rate Tracker Bracelet Sport Waterproof Smartwatch | Smartwatch (Black) Highlights Universal Bluetooth Smartwatch Full Touch 1.7 On Screen Music Player Heart Rate Tracker Bracelet Sport Waterproof Smartwatch | Smartwatch (black) Bluetooth Smart Watch Full Touch 1.7in Screen Music Heart Rate Monitor Fitness Tracker Bracelet Sport Waterproof Smartwatch | Smart Watches (Black) Bracelet Language (Default English): Chinese, Traditional, English, Spain, Portugal, Japan, France, Germany, Russia, Poland, Persian, Thai, Malay, Turkish, Italian, Arabic, Vietnamese. APP (follow mobile): Chinese, Traditional, English, Spain, Portugal, Japan, France, Germany, Russia, Poland, Persian, Thai, Malay, Turkish, Italian, Arabic, Vietnamese. Parameters CPU: IRVINE BLE5.0 IS2806 Semiconductor, Heart rate sensor: Silan SC7R31 External flash: 64m black color External SD: 128/512m Accelerometer: Silan SC7A20 Body temperature sensor: high precision NTC thermistor TP: CST816S Vibration: Motor of coins Charger interface: 5.0v Display: 240*240 1.7 inch Spin button: incremental encoder UI interface: can achieve smooth interactive dynamic UI effects Android: Android 4.4 or above IOS: iOS 8.4 or higher