A2 children's smart watch supports 4G call sleep monitoring Wifi and GPS positioning IPX7 waterproof call bracelet SOS for help

Name: A2

function: 4G call, Android system, GPS+LBS+GSM+A_GPS+WIFI positioning, receive SMS, one-click SOS, one-click monitoring, video call, geofence, pedometer, alarm clock, sleep monitoring, anti-loss, color touch screen, IPX7 waterproof

memory: 512MB (RAM) + 4GB (ROM)

chip: ZX 8521E

screen: 144-inch color IPS touch screen with 240*280 resolution

Battery capacity: 3.7V 650Mah

Network frequency band 2G: GPRS Class12, GSM850/900/1800/1900MHz

Network frequency band 3G: WCDMA 850/1900/2100MHz

Network frequency band 4G:FDD-LTE  B1 B3 B5 B8 TDD-LTE  B38/B39/B40/B41

Wifi: 802.11 b/g/n