1. Main screen: 1.3-inch smooth glass HD IPS screen, resolution 240*240, capacitive touch screen. IP68 waterproof. 2. Dual BT: BT 3.0, 4.0, support phone calls, vibration reminder. 3. Battery capacity: 290mAh, battery life 2-3 days. Total weight: 46g. 4. Multiple dials. 17 languages, support mobile phone language synchronization (English, Russian, Arabic, Vietnamese, Burmese, Thai, Polish, Persian, Spanish, Malay, Greek, French, Italian, German, Portuguese, Indonesian, Turkish). 5. Other functions: alarm clock, calendar, stopwatch, etc. BT notification: calls / message reminder for WeChat / QQ / WhatsApp / Facebook / Twitter etc. Support heart rate, sleep monitoring, pedometer, sedentary reminder, mobile phone search function, BT music playback, control mobile phone to take pictures, sync mobile phone book, call history, SMS (SMS does not support for iOS system). 6. Y2 charging cable.