UPDATE: A Sprint representative tells Ars Technica that it will not offer the iPhone 4S with an unlocked micro-SIM card slot, despite earlier reports that it would. Instead, customers must use ...

When the first iPhone 4S story was written here on SlashGear announcing said device, it was entitled iPhone 4S World Phone revealed – as it turns out, that doesn't mean the same thing to all carriers ...

Does Verizon use SIM cards in its phones or are they internal? Here’s everything you need to know, including what’s happening to its CDMA2000 network… When you’re talking about cellphones, a SIM card ...

In this edition of Ask Maggie, Maggie Reardon gives one reader the lowdown on which carriers will unlock the iPhone 4S for use overseas and which one won't. Marguerite Reardon started as a CNET News ...

Forbes contributors publish independent expert analyses and insights. I am an investigative attorney and physical security specialist. If you ask most cell phone users what they understand the term ...

Last year I purchased the Apple iPhone 4S on Verizon because I had an unlimited data plan I wanted to maintain. It turned out to be a good choice as I was able to easily call up Verizon and get my ...

One of the promoted specifications on the new Apple iPhone 4S is the "world phone" capability, but it isn't quite the world phone that many international travelers who use GSM phones are used too.

Maybe a no-brainer, but seeing “Verizon Wireless” anywhere near the words “swappable SIM cards” is like seeing a little slice of hell freeze over: Verizon’s confirmed that their LTE devices will have ...

A new iPhone 4S accessory claims to successfully SIM unlock all models of the AT&T Apple iPhone 4S running iOS 5.0 and 5.0.1 firmware. As AT&T, unlike rivals Sprint and Verizon Wireless, does not yet ...

Jeremiah is a US-based blogger who bought a Nexus One the day it came out and never looked back. In his spare time he watches Star Trek, cooks eggs, and completely fails to write novels. Update: ...