Fangrui Product Details 1. Gt3 Smart Bracelet, 1.5 Inch Smart Watch, Bluetooth Call Heart Rate Blood Pressure Blood Oxygen 2. Functions: Nfc Access Control, Health Three Rings, Heart Rateblood Pressureblood Oxygen Monitoring, Ecg Monitoring, Bluetooth Calling, Bluetooth Music, Sleep Monitoring, Call Reminder, Text Message Reminder, Social App Message Reminder, Alarm Clock Reminder, Sedentary Reminder, Multi-sport, Turn Your Wrist To Light Up The Screen, Find Your Bracelet, Find Your Phone, Take Photos Remotely, Do Not Disturb Mode, Dial Customization, Airplane Mode, Frequently Used Contacts, Siri, Music Control, Weather, Etc. 3. Motherboard Model: Lj639 4. Cpu: Jq7011 5. Support G-sensor, External Flash, Heart Rate Sensor, Motor, Microphone, Speaker, And Colorful Lights 6. Bluetooth: 5.3+5.3 Dual Mode 7. Lcd: 1.50 Inches 240x240 8. Tp: Cob Capacitive Touch 9. Charging Method: 2pin Contact Charging Compatible With Wireless Charging 10. Battery Capacity: 240mah 11. Social App Message Reminder: Supports Wechat, Qq, Facebook, Twitter, Line, Whatsapp, Instagram, Etc. 12. App System: Ios 9.0 And Above System, Android 5.0 And Above System 13. Bracelet Menu Language: Chinese, English