HDT 3 Max 1.6 inch Silicone Band IP67 Waterproof Smart Watch Support Bluetooth Call NFC Features: 1. 1.6 inch high-definition full-circle full-touch color screen with a resolution of 480x480px 2. Bluetooth call, music playback, phonebook synchronization 3. Support Alipay offline payment function 4. Support NFC access control function (support most access control cards) 5. Realtek chip, large memory, smooth operation without lagging 6. Real-time monitoring of heart rate, blood pressure, blood oxygen and other health monitoring data 7. The watch supports multiple UI languages, and multiple sports modes are optional 8. Massive online push of dials, support for personalized customization 9. Basic functions: Bluetooth calling, contact synchronization (8), making calls, displaying harassing calls, Alipay offline payment, step counting, heart rate, blood oxygen, blood pressure, ECG, SMS push, message reminder, sedentary reminder, Sports mode, sleep monitoring, password lock, breathing exercise, remote photo taking, music control, computer, stopwatch, alarm clock, raise your hand to brighten the screen, weather, brightness adjustment, information push, etc. 10. Exercisesports mode: walking, running, cycling, climbing, rope skipping, basketball, football, badminton, ice hockey, rowing machine, gymnastics, baseball, boxing, push-ups, 14 sports modes Parameter: 1. CPU: Realtek 8762DT+ Jerry AC6959A 2. FLASH memory: 256Mb 3. Touch screen type: full touch IPS 4. Display: 1.6 inch round screen 5. Resolution: 480x480px 6. Bluetooth: BLE5.0+EDR3.0 7. PPG heart rate sensor: Tianyi Hexin 3300 8. Button: Rotate button 9. Pedometer: Support 10. Charging method: wireless charging 11. Battery: 250mAh lithium polymer 12. Waterproof grade: IP67 13. System support: Android4.4 (inclusive) and above, IOS9.0 (inclusive) and above 14. Watch languages: Simplified Chinese, Traditional Chinese, English, French, German, Portuguese, Spanish, Japanese, Italian, Korean, Russian, Dutch 15. APP language: