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 ...

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 ...

The iPad's Subscriber Identity Module connects the tablet to cellular data when Wi-Fi is unavailable. Unlike the iPad Mini, which uses a nano SIM card, the standard iPad uses a slightly larger micro ...

4FF stands for 4th Form Factor. A SIM card that is simply physically smaller than a traditional (2FF) SIM card or Micro-SIM (3FF) card. See: SIM The electric contacts and circuitry of a Nano-SIM are ...

So you are looking for the best smartphones with Nano SIM card slots? Well, let’s get into it then. Those of you who are not familiar with SIM cards, I bet you use CDMA phones. SIM (subscriber ...

After helping popularize the micro-SIM with the iPad and iPhone 4 in 2010, Apple is shrinking SIM card technology yet again with the coming iPhone 5. The new phone, which will be announced September ...