Do I have to use a SIM card for the IPhone 5? Will it work without one?

Do I have to use a SIM card for the IPhone 5? Will it work without one? - 1

You need a SIM card (does not have to be active) to activate the iPhone out of the box. After that, you do not need a SIM card to use the Wi-Fi features of the phone but anything that you need a carrier for (Calls/Texts) needs an active SIM card.

A sim card is a, also called the subscriber identity module card is how the phone knows what provider you use, your phone number and your name, without it the phone is not able to be used as the cell network can't find your phone so all you can do is use Wi-Fi and access the internet

its vasically a phone without a phone number or access to the cell network

I think you need a sim card for any phone on a GSM network (AT&T or T-Mobile).

To get through initial set up & of course to function as a phone, yes.
Otherwise, no, but if that's the intent may as well just get an iPod touch & not have to deal with a SIM at all.

It will work without a Sim but if you want all your stuff on it, like memory, pictures, and stuff, put a sim card in

Yes you do need it

You need