ZX19 1.45 inch HD Screen Women Smart Watch 1. Material: alloy face shl + IML bottom shl + metal strap 2. Motherboard: NRF 528323. Memory: 512KB+64KB (Flash 64M) 4. System requirements: Android 5.0 and above, IOS 10.0 and above 5. Charging head specifications: charging 1A or less 6. Charging time: 2H 7. Bluetooth version: Bluetooth 5. 08. Screen display: 1.45 inches, resolution: 172* 3209. Battery capacity: 160 mA 10. Standby time: 30 days 11. Working time: 5-7 days 12. Waterproof rating: IP 6813. Sensor: gravity sensor/heart rate sensor 14. Push supports 20 languages: Traditional Chinese, Simplified Chinese, English, Japanese, Korean, German, Russian, Spanish, Italian, French, Romansian, Portuguese, Arabic, Greek, Dutch, Polish , Turkish, Vietnamese, Thai, Indonesian 15. Functions: heart rate detection, blood oxygen detection, blood pressure detection, female menstrual period, time display, step counting, calories, distance, heart rate, sleep time, switch display, 12 sports modes (running/walking/hiking/badminton/ Rope skipping / exercise / yoga / aerobics / spinning / liptical machine / rowing machine / swing), sleep monitoring (sleep time, sleep ), call notification, information reminder, multi-language push, alarm clock reminder, sedentary reminder, etc. 16. Size: 41.5x25.5x10mm 17. Weight: about 55g