1. CPU1: Realtek-8762DT 2. CPU2: HN333 3. Bluetooth version: BLE5.0 call BLE3.0 4. Display: 1.32-inch TFT color screen, resolution 360*360 5. Acceleration: 3-axis gravity sensor Silan Micro SC7A20 6. Flash: 64MB 7. Battery capacity: 260 mAh 8. Charging time: 1-2 hours 9. Standby time: about 30 days 10. System requirements: IOS9.0 and Android 5.1, support Bluetooth 4.0 11. Data synchronization: Bluetooth data synchronization to the mobile phone application 12. Data storage: save 7 days of exercise data 13. APP compatible languages: Simplified Chinese, Traditional Chinese, English, multiple languages, etc. 14. Compatibility: Android 4.4 and above, IOS 9.0 and above, support Bluetooth 4.0 15. Functions: dateweek display, weather forecast, battery display, step counting, heart rate, blood pressure, blood oxygen, distance, calories, automatic sleep monitoring, support for making and connecting calls (call function), body temperature monitoring, compatible VC32 true blood oxygen, real-time heart rate detection, heart rate alarm, multi-sport modes (running, skipping rope, cycling, table tennis, badminton, walking, mountaineering, basketball, soccer, jumping, elliptical machine, yoga, swimming), fitness Information sharing, exercise goal setting, GPS exercise, running, walking, cycling GPS track, history record, exercise track sharing, calories, distance, pace display, call reminder, contact reminder, message reminder, alarm clock reminder, message Push, Do Not Disturb, Password Lock, Stopwatch, Women's Health Reminder, etc. 16. Material: tempered glass + zinc alloy + silicone tape + TPU 17. Dimensions: 45.5x45.5x10.6mm