watches multi-personalized dial gps motion track full circle touchscreen smart watch with heart rate blood pressure monitoring

product parameters: 1. app operating system: ios9.0 or above, android4.4 or above 2. display size: 1.54 inch 240*240 dpi 3. display type: tft 4. sensor: sc7a20 (silan micro) 5. main control: hs6620d (han tianxia) 6. heart rate sensor: hrs3300 (tianyi hexin) 7. vibration reminder: motor vibration reminder 8. bluetooth: ble 4.0 9. strap material: silicone strap 10. color: black, orange, green 11. operation: full touch screen 12. battery: polymer lithium ion battery 13. battery capacity: 170 mah 14. standby time: 7-10 days 15. charging method: usb magnetic charging cable 16. charging time: about 2 hours