A guide to SIM cards, the small chips that connect your phone to a cellular network

A SIM card, or subscriber identity module, is a small card in your cellphone that lets you place phone calls, send text messages, and more.
Macworld

Which size SIM do I need for my iPhone: SIM, Micro-SIM and Nano-SIM

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 ...
Gizmodo

T-Mobile Is Offering Micro SIM Cards So Their Customers Can Use the iPhone 4

In order to use the iPhone 4 on T-Mobile you have to jailbreak it, unlock it and then annoyingly cut your fatty SIM into a Micro SIM. Annoying! T-Mobile is making it a little easier by giving Micro ...
Electronic Design

Micro-SIM Card Socket Styles Maximize Space Savings

Molex Incorporated has expanded its micro-SIM card socket portfolio for mobile device manufacturers. Designed for smart phones, tablet PCs, GPS watches and other space-constrained applications, ...
Phone Scoop

Nano-SIM

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 ...
EDN

Micro-SIM Card Socket

Molex Incorporated has expanded its micro-SIM card socket portfolio for mobile device manufacturers. Designed for smart phones, tablet PCs, GPS watches and other space-constrained applications, ...
Geeky Gadgets

Cut My SIM Converts Any SIM Card Into A Micro SIM

If you don’t fancy using a meat cleaver to turn your SIM card into a micro SIM card for your new Apple iPad, then you may want to check out this cool tool which does it for you, the Cut My SIM. The ...