Apple’s new iPhone 4S will be available in three networks in the US this Friday, AT&T which uses GSM and Verizon and Sprint, which uses CDMA, and the Phone 4S will run on both GSM and CDMA networks.
It looks like Sprints version of the iPhone 4S will come already unlocked, so this will mean you will be able to us it on GSM networks when you are abroad, and CDMA networks when you are in the US.
Verizon will also offer to unlock your iPhone 4S so it will work on both GSM and CDMA networks, but only after you have been a customer with them for 60 days.
Have a look at our iPhone 4S review which includes videos, tons of photos and averything you need to know about the iPhone 4S, siri, and iOS 5.
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