DT91 1.28 inch LTPS LCD Screen IP67 Smart Watch, Support Sleep Monitor / Bluetooth Photograph / Heart Rate Monitor / Blood Pressure Monitoring(Silver Leather Strap)

1. Compatible system: IOS / Android system
2. Function: IP67 waterproof, multi-dial selection, calculator, sleep, calendar, heart rate, blood pressure, blood oxygen, ECG, stopwatch, raise your hand to brighten the screen, run, look up your phone, make a call, contact, information, call history, Sedentary reminder, drink reminder, alarm clock, remote music, remote photo (connected to Bluetooth)
3. APP supported languages: Russian, German, Italian, Japanese, French, Chinese, English, Portuguese, Spanish
4. Supported languages ??on the device: A: English (default), Simplified Chinese; B: English (default) French, Spanish, Polish, Portuguese, Italian, German, Czech, Indo-Lician, Malaysian, Dutch, Vietnamese, Turkish, Russian, Thai,
5. Languages ??supported by the manual: Simplified Chinese, English, Italian, Spanish, Japanese, French, Russian, German
6. Chip: MTK 2502D
7. Memory: Built-in (cpu comes with): RAM: 32MB ROM32MB
8. Bluetooth: 4.0+3.0
9. Screen size: 1.28
10. Screen resolution: 240*240
11. Screen type: LTPS LCD screen
12. The smallest adjustable inner diameter of the bracelet: 32mm
13. The maximum adjustable inner diameter of the bracelet: 65mm
14. Applicable wrist circumference range: 35~60mm
15. Total length of wrist strap: 255mm
16. Wristband material: silicone/belt
17. Battery type: Lithium battery
18. Battery voltage: 3.7V
19. Battery capacity: 320MAH
20. Life time: 3 days
21. Charging method: magnetic wire charging
22. Charging time: 2.5 hours