Fangrui Product Details 1. H21 1.14 Inch Leather Band Earphone Detachable Smart Watch Support Temperature Measurement Bluetooth Call Voice Control 2. Support Siri Or Voice Control, Heart Rate, Blood Pressure, Blood Oxygen, Message Reminder, Call Push Name, Raise Hand To Turn Wrist To Brighten The Screen, Bluetooth Call, Music Playback, Alarm Clock, Brightness Adjustment, Weather Forecast, Dial Switch, Language Change (chinese And English) 3. Message Push Reminder: Incoming Call, Sms, Wechat, Qq, Facebook, Twitter, Linkedin, Whatsapp 4. Data Synchronization: Time, Step Counting, Sleep, Heart Rate, Body Temperature Data Synchronization 5. Set Alarm Clock: Support Setting 5 Alarm Clock Reminders 6. Other Reminders: Support Drinking Water Reminder, Sedentary Reminder 7. Health Management: Support Automatic Heart Rate And Body Temperature Monitoring 8. App Languages: Simplified Chinese, Traditional Chinese, Ukrainian, Urdu, Russian, Hungarian, Hindi, Turkish, German, Italian, Czech, Slovak, Japanese, French, Polish, Persian, Thai, Romanian, English, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean 9. Parameters: 10. Cpu1: Sy8811 11. Cpu2: E1500 12. Bluetooth Version: Bt5.0 13. Heart Rate Sensor: 3300 14. Temperature Sensor: Support Compatible 15. Full-time Pedometer: Support 16. Motor: Support 17. Horn Microphone: Support 18. Screen: 1.14 Inches (135x240) 19. Function Key: 1 Virtual Touch Key 20. Battery Capacity: 100mah-110mah