1, wifi does not need to call version (full Netcom, 4G version, LTE version). ;
2, if there is no wifi in the vicinity, you need the call version, the call version is more than one card slot, more than one 4G function, there are more mobile phone functions, you can plug the mobile phone card to support the mobile phone card Internet. ;
3, the call version does not have to insert the card, do not need to insert the card, usually available wifi Internet access. Personally feel that the call version is better, the Internet can be free to choose, in the wifi place is not inserted card, you can choose to use wifi Internet access. If the phone breaks, the tablet can be used as a phone.