SPECIFICATION:

1. Waterproof:IP67                                                                                                                                             2. OS: Android 7.1 (with SIM slot)
2. Display: 1.88 inch AMOLED touch screen
3. Network: Nano SIM*1, 2G GSM: B2/B3/B5/B8, 3G WCDMA: B1/B2/B5 and 4G LTE-FDD: B1/B2/B3/B5/B7/B12/B20,LTE-TDD: B38/B39/B40/B41 and more customizable
4. CPU: MTK6739 quad-core
5. Memory: RAM 1GB,ROM 16GB optional
6. Connection: GPS, WiFi, Bluetooth 4.0
7. Battery:700mAh built-in Lithium battery                                                                                                                                      
8. Camera:5.0 MP
9. Color: Black    
10.Functions: Google Play, Brower, Music, Heart Rate, Pedometer, Sedentary, Sleep Monitor, Anti-lost, Remote Control of Camera, etc (App: Wiiwatch2)

PACKAGING:

1x DM20 Smart watch with battery
1x USB charging adapter
1x Cleaning cloth
1x Screen protector
1x User manual
1x Gift box (11*9.2*8.3cm, 195g)