WS12 ULTRA 2 2.2 inch Sport Smart Watch, Support Payment Code Bluetooth Call Sleep Blood Oxygen Heart Rate Blood Pressure Health Monitor 1. Bracelet size: 4.9 x 4.4 x 1.2cm 2. Weight: 55g 3. Chipset: 5682C 4. APP: FereFit 5. FLASH memory: 32MB 6. Compatible with smartphone systems: Android 5.0 or IOS 9.0 or above systems. 7. Screen size: 2.2 inches, Full touch screen. 8. Resolution: 240 x 296 9. Bluetooth: 3.05.0 10. Waterproof Level: Life waterproof 11. G-Sensor: MSA311 12. Battery: 220mAh lithium polymer battery. 13. Charging Method: Wireless charging. 14. APPWatch language: Chinese (default), English, Russian, Spanish, Italian, Portuguese, Dutch, Turkish, Vietnamese, Hebrew, Thai, Arabic, Malaysia, Myanmar, Persian, German, French, Polish, Greek, Indonesian, Ukrainian, Romanian 15. Major function: Business card, payment code, calculator, drainage, calendar, womens health, breathing, blood sugar, language assistant, location, information, activity data, phone (call history, contacts, dialing, SOS), blood oxygen, alarm clock, game (bird), blood pressure, timer, Sports (running, treadmill, cycling, brisk walking, mountaineering, yoga, basketball, football, badminton, baseball, table tennis, volleyball, dynamic cycling, rowing machine, golf, tai chi, jump rope, elliptical machine, free exercise), heart rate, alarm clock, music, Settings (dial setting, theme switching, display, hold up and light the screen, Do Not Disturb mode, rest screen dial, vibration setting, sound setting, language selection, time setting, date setting, two-dimensional code, password, system menu, gesture control, about), menu style, sports record, pressure, sleep, stopwatch, search mobile phone, camera, Alipay, weather, display setting, hold up and light the screen, Do Not Disturb mode, rest screen dial, Display settings, menu background. 16. Charging time: 2-3H 17. Lifetime: 7-15Days 18. Wristband size: Total length 270mm, width 40mm.