Recommended SIM card carrier(SIM card not included)
This watch works as a little smart phone to make or receive phone calls after SIM card correctly inserted.It can support 4G Nano SIM mobile/watch card from most carriers.(For other carriers,please confirm with us ).
T-Mobile,AT&T,AT&T2,Iowa Wireless,Cincinnati,Partnership,T-Mobile USA,WAP Cleartalk,Airadigm,Western,Inland Cellular,epc.tmobile.com,SunCom Wireless,Cingular Wireless,Cingular,
We recommend to use T-mobile
If you use a new card ,please call the SIM card carrier to activate the card's caller ID, GPRS data traffic Internet access function, and call function.After SIM activation, it might take up to 24-hrs for the GPRS and data settings to sync and update with your device.
- Network(we recommend 4G):
- 2G:GSM:B3/2/5/8/
- 3G:WCDMA:B1/2/5/8/ -
-4G:FDD-LTE:B1/2/3/4/5/7/8/12 or17/20/28A