i have ipad 1 what does micro sim card do?

I have no micro sim card for my ipad 1 and, I want to buy one but I dont know what it does.

1 Answer from the Community

  • SIM is short for subscriber identity module used in GSM cell phones and/or cellular enabled devices. With an appropriate SIM card, cellular enabled device, and cellular service contract, a used can make and receive calls and/or access data services via a cellular network.

    For all wifi+cellular iPads, a SIM card and service agreement will provide access to cellular data services. SIM cards come in various physical sizes (e.g., regular, nano, micro).

    • Answered by Steve M from Litchfield
    • Feb 27, 2016