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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 ...

I know it might seem like a strange request, but the current carriers have been giving out terrible quality SIM card adapters. They fall apart after a couple of insertion/removal cycles. And due to ...

As a last resort you can get a good paris of scissors and chop down your SIM. This is how I have done it in the past and if done carefully works very well. If you have access to another Nano or 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 ...

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.

SIM card format developer Giesecke & Devrient is proposing new specifications for a new SIM format called the nano-SIM, which will be 30 percent smaller than today’s micro-SIM and 60 percent smaller ...