1. Material: zinc alloy + electroplating + ABS + IML + silicone 2. CPU: Fr5082 3. BT version: BT2.1+EDR+BLE5.0 4. Flash: 8Mbit+64Mbit 5. Screen: 1.75 inch TFT LCD screen 6. Resolution: 320*320 7. Battery capacity: 280mAh 8. Standby time: 15-30 days 9. Battery life: 7-10 days 10. Charging method: wireless charging 11. Supported mobile phone version: IOS5.0 and above Android 4.0 and above 12. Supported languages: English, Simplified Chinese, Italian, Portuguese, Polish, Spanish, French, Greek, Persian, Hungarian, Czech, Russian, Turkish, Dutch, German, Thai, Vietnamese , Indonesian, Malay, Filipino, Arabic 13. Function: Bluetooth dialing, Bluetooth music, Bluetooth voice, Bluetooth information, remote photo, find mobile phone, step counting, multi-sport mode, sleep monitoring, sedentary reminder, drinking water reminder, weather forecast, stopwatch, calculator, alarm clock, Flashlight, calendar, heart rate monitoring, blood pressure monitoring, blood oxygen monitoring, etc. 14. Dimensions: 44x38x10.9mm