The SIM cards that fit into those tiny slots in your cell phone and tell your cellular network to whom your calls are to be charged come in four different sizes. With the only real difference between ...

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One of the originators of the SIM standard has designed a new “nano-SIM” that’s considerably smaller than the micro-SIM it hopes to replace. One of the originators of the SIM standard has designed a ...

You’ve just bought yourself an iPhone – welcome to the club! However, while you thought you’d just be able to pop your existing SIM card into your iPhone, you might be wrong. That’s dependant on not ...

Just in case a micro-SIM card is too bulky for you, Germany’s Giesecke & Devrient (G&D) has announced a nano-SIM card, which is about 30% smaller than the micro-SIM and 60% smaller than a SIM card.

If you’ve bought an iPad with 4G/cellular capabilities (we discuss whether that’s a good idea in our 2015 iPad buying guide) or a new iPhone, you need to buy and install a SIM card. Here, we explain ...

3FF stands for 3rd Form Factor. A SIM card that is physically smaller than a traditional (2FF) SIM, but larger than a nano-SIM (4FF). See: SIM The electric contacts and circuitry of a micro-SIM are ...

Rumors say the iPhone 5 will use the new Nano SIM standard when it launches, and as we lead up to the anticipated iPhone 5 launch and release, it looks like retailers are receiving new Nano SIMs for ...