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 ...

Want to squeeze your current SIM card into your brand new iPhone 5? Check out our DIY guide to find out how. Katie Collins Principal Writer Katie is a UK-based news reporter and features writer.

Conflict is brewing in the mobile world over the adoption of a new, smaller standard for the SIM card — the chip in each GSM phone that dictates which network you connect to and your cellphone number.

While most people seem to manage just fine with a single SIM card in their smartphone, some -- especially travelers, who can save money by fitting a local SIM card into their handset -- love the ...

So let’s say you’re really excited to get a new iPhone 5, but unlike the average buyer, you’re getting an unlocked one straight from Apple, and you’re champing at the bit to bring it to your carrier.

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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 ...

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 ...

We may earn a commission when you click links to retailers and purchase goods. More info. According to the image above which shows a device said to be the Moto X lying next to a SIM card tray and ...

Find out how to trim your own micro-SIM card for use in phones that require this new format. Sharon Profis Former Vice President of Content, CNET Studios As vice president of CNET Studios, Sharon led ...

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 ...