1. iMore Question's Avatar
    Do you need a sim card in the Iphone 4 for it to work
    01-15-2016 05:06 PM
  2. DarlaMack's Avatar
    Do you need a sim card in the Iphone 4 for it to work
    Welcome to iMore!!

    In order to use Cellular service you must have a sim card for that provider for the iPhone to work.

    If you wanted to just use wifi no sim card is needed, but your iPhone 4 would pretty much just function as an iPod with wifi capabilities.
    01-15-2016 05:33 PM
  3. SwitchBeach's Avatar
    Except if it is a Verizon or Sprint iPhone 4 which is a CDMA only device and does not use a SIM card.
    01-15-2016 08:43 PM

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