H18 Ultra-Thin Round Ball Screen 1.95 Inch Plug-In Phone Smart Watch 1. Main control chip: SC8541E 2. Display: 1.95-inch IPS 3. Resolution: 490 x 490 4. DDR3 memory (RAM): 2GB 5. Flash memory (ROM): 32GB 6. Battery capacity: 2000mAh 7. Card insertion: SIM card 8. Pixel: 2M GC2385 single side camera 9. WifiGPS: support, LDS antenna 10. 2G: B3+B8+B5 11. 3G: B1+B5+B8 12. 4G: 4G_FDD: B1+B3+B5+B8; 4G_TDD: B38+B39+B40+B41 13. Bluetooth: support 14. NFC: support, can be written to the general access control 15. Gravity sensor: support, SC7A22C 16. Phone: support 17. System: Adriod8.1 18. Language: Chinese, English 19. Operating temperature: 0- 45 degrees Celsius 20. Protection grade: IP67 21. Size: dial about 5.2cm, strap about 27cm Features: 1. 1.95-inch high-definition spherical screen, 490x490 high resolution, fine and vivid display, screen hardness is higher, can resist scratches 2. A variety of social functions, anytime, anywhere, chatting freely 3. Side high-definition camera, can take photosvideosweep code 4. Portable side card design, 4G5G network universal, SMM independent card insertion, receivingdialing calls, sending and receiving text messages can be 5. 9 real-time positioning, built-in GNSS module, support GPS + BeiDou + GLONASS + GALILEO + QZSS + AGPS + G-Sensor + Wi-Fi + base station positioning 6. Multi-functional NFC access control, connecting various NFC commands into the watch, access card simulation, lifting hand to open the door 7. Smooth running, can play games 8. Support short video and movie APP, watch video online anytime and anywhere 9. Multiple sports modes, support running, jumping rope, climbing and other sports, real-time access to distance, speed and calorie data 10. Support heart rate, blood pressure, blood oxygen measurement and automatic monitoring. 11. Large HD spherical screen, compatible with major video players 12. Support one-key voice call, dialing at any time 13. Rea