LEMFO TF10 Pro 1.53 inch BT5.2 IP67 Sport Smart Watch, Support Bluetooth Call Sleep Blood Oxygen Heart Rate Long Sitting Health Monitor 1. Compatible with smartphone systems: Android 5.0 or IOS 9.0 or above systems 2. Main Control Chip: JL7012 3. Wristband Memory: 128M 4. Bluetooth Version: 5.2 5. Heart Rate Chip: SC7R30 6. Screen: 1.53 inches, Resolution: 360x360 7. Battery: 200mAh 8. Standby Time: 65 days 9. Usage Time: About 15 days 10. Charging Interface: Magnetic cable charging 11. Waterproof Rating: IP67 12. Sensor: G-sensor 3-axis 13. Watch Faces Market: 300+ 14. APP: NewWear 15. Languages: English, French, Portuguese, Russian, Turkish, Polish, Hindi, Arabic, Persian 16. APP Languages: Simplified Chinese, English, French, German, Russian, Hindi, Turkish, Polish, Vietnamese, Arabic, Persian, Thai, Urdu, Portuguese, Bengali 17. Product Size: 49.5x13.4mm 18. Strap Material: Silicone strap 19. Body Material: Zinc alloy electroplating + PCABS 20. Functions: Multiple sports modes, customizable watch faces, voice calls, mini-games, weather, pedometer, distance, raise wrist to wake screen, sleep monitoring, call reminders, message reminders, sedentary reminders, alarm reminders, calendar, AI voice assistant, music playback, hourly measurement, heart rate, blood oxygen, calculator, APP sports tracking, remote photo taking, find wristband, time synchronization, stopwatch, contacts synchronization, flashlight