If I buy a Iphone 3gs Used from the US will I be able to use it in Canada?

If I buy a Iphone 3gs Used from the US will I be able to use it in Canada

I need to know, is there anything different from the american iphone and canadian iphone.

If you bought a 3gs running the old software 3.1.3 yes you would be able to “Jailbreak and Unlock” for any carrier. If your buying the 3gs running the newest software (4.0) you will not be able to use it for any other carrier besides AT&T U.S.

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