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 ...

Being able to swap your SIM card into a different phone is great—until you find out it isn't the right size. If you need to fit your Nano-SIM into a Micro-SIM slot, the Sadapter can help. I recently ...

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 ...

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 ...

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 ...