1. Master chip: NRF51802 2. FLASH memory: 16MB 3. Bluetooth vision: BT4.0 4. Screen: 1.14 inch IPS color screen 240*135 Single point 5. Appearance material: main body: Plastic+ML, wristband: TPE 6. Battery type: Li-Polymer battery, battery capacity 120mAh. 7. Charging time: about 2h, Endurance time: 5-7 days, standby time: 15 days. 8. Compatible systems: Android 4.4 and above, iOS 8.2 and above. 9. Main function: Step count, heart rate detection, real-time heart rate monitoring, sleep monitoring, sedentary reminder, mileage, blood oxygen, blood pressure, mobile search, calories, WeChat, QQ and other text information tips, intelligent anti-lost, WeChat movement, weather forecast, multi UI switching, etc. 10. APP: Gather life (Supports languages: Chinese Simplified Chinese Traditional Chinese English French German Italian Japanese Korean Russian Spanish Portuguese Arabic) 11. Size: 263*80*48mm, weight: 24g