HD3 1.32 Inch Heart Rate Monitoring Smart Watch with Payment Function 1. Material: alloy, leather, electronic components 2. Functions: video entertainment, photography, step counting, heart rate monitoring, blood pressure measurement, social entertainment, Bluetooth calling, smart reminder, remote selfie, sleep monitoring, blood oxygen detection, information push, sports tracking 3. Menu language: Simplified Chinese, Traditional Chinese, English, German, French, Spanish, Korean, Japanese, Russian, Arabic, Portuguese, Italian, Thai, Burmese, Turkish, Hebrew, Malay, Persian 4. Compatible system: Android, IOS 5. Screen size: 1.32 inches (IPS color screen) 6. Screen resolution: 360 x 360px 7. Bluetooth version: 3.0, 4.0 8. Wireless distance: 5-10m (inclusive) 9. Body memory: 64+128MB 10. Wearing method: wristband 11. Battery capacity: 280mAh lithium battery 12. Charging method: magnetic charging 13. Operation mode: touch + button 14. Waterproof grade: IP67 15. Magnetic fast charging, more convenient to use, fast full charge 16. LED light sensor design on the back of the watch, real-time detection of blood pressure, heart rate, blood oxygen 17. Dial size: 47 x 14mm