Question

 How does a sim card work on the iPhone?

Answer A 4g phone is a lot faster than a 3g and it's a lot clearer.
http://wiki.answers.com/Q/How_does_a_sim_card_work_on_the_iPhone

Top Q&A For: How does a sim card work on the iPhone

If you buy an iphone 4 from the U.S and bring it to Australia wil it work. do i just have to unlock it. can you do that. what sim card does it work with?

If the iPhone is factory unlocked,yes u can use it If not,nope U have to jailbrake it and unlock it. Still no unlock for the 4-th iPhone Maybe the next week it's gonna to be a release
http://wiki.answers.com/Q/If_you_buy_an_iphone_4_from_the_U.S_and_bring_it_to_Australia...

Does an iPhone 3GS sim card work on iPhone 3G?

the sim card just holds network information not phone information so yes you can transfer your sim card without any problems i had a sim card from about 3 years ago and i just bought a iphone 3gs a... Read More »
http://wiki.answers.com/Q/Does_an_iPhone_3GS_sim_card_work_on_iPhone_3G

Does the iPhone 4 sim card work in the iPhone 4S?

Yes, it does. Both iPhones use the micro SIM card.
http://wiki.answers.com/Q/Does_the_iPhone_4_sim_card_work_in_the_iPhone_4S

Do you need a sim card to use an iphone because I want to get a iphone 4 but i just dont want to use the phone on it. Will the iphone work without a sim card apart from the phone?


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