1. CPU: MTK6739 Quad core 1.25GHZ 2. Memory: Operating memory: 3GB + Storage memory: 32GB 3. SIM card: Nano SIM 4. Call: independent standby, 4G call 5. Supported frequency bands: GSM: B2(1900), B3(1800) B5(850) B8(900); WCDMA: B1(2100) B5(850) B2(1900); LTE-FDD: B1(2100)B2( 1900)B3(1800)B5(850)B7(2600)B8(900)B12(700)B17(700)B20(800);LTE-TDD:B38(2600MHZ),B39(1900)B40(2300)B41( 2500) 6. Touch screen: 1.69-inch IPS high-definition round screen, 450*450 resolution 7. Camera (front): 8 million pixels 8. Camera (main camera): 13 million pixels (supports self-focusing) 9. Bluetooth: Ver5.0 10. WIFI: 802.11 a/b/g/n 11. GPS: GPS+GLONASS 12. Data interface: POGO PIN+magnetic wire 13. Battery capacity: 1600mAh 14. Standby time: 72 hours 15. Music playback: 6 hours 16. Talk time: 4 hours 17. Waterproof grade: 5ATM waterproof/IP68 waterproof 18. OS: Android 7.1.1 19. Compatible system: Support Android original operating system 6.0 and above, support IOS 11.0 and above system version 20. Supported languages: Chinese (Simplified), Chinese (Traditional), English, French, German, Spanish, Italian, Portuguese, Japanese, Korean, Russian, Turkish, Bengali, Greek, Hebrew , Indonesian, Persian, Polish, Thai, Vietnamese, Norwegian, Ukrainian, Burmese, Dutch, Arabic 21. Functions: address book, phone, information, settings, browser, download, calendar, clock, camera, gallery, music, recorder, file management, outdoor running, outdoor walking, indoor running, cycling, playing basketball, playing football, playing table tennis, playing badminton, rope skipping, diving, heart rate monitoring, sports, weather, voice search, enabling remote shooting, music control, sending files, finding mobile phones, etc 22. Watch size: 54x18.5mm 23. Strap: 22mm width, total length 267mm, adjustment range 150-235mm