Normally when it comes to upgrading your phone, it’s just a case of popping the sim card out of your current phone and inserting it into your new one. Apple have complicated this with the iPhone 4 and iPad by using Micro Sim Cards in both devices.
If you’re upgrading your phone through a network or are taking out a specific iPad data plan then you won’t have a problem as you’ll get a micro sim as standard, but if you’re buying your iPhone sim free or on Pay as You Go you’re going to run into a snag.
Micro Sim cards are exactly the same as a standard sim card, they just have less plastic around the edge of the gold chip. You can of course request a micro sim from your network, but this could take a couple of days – leaving you without a phone. The other option is to trim your existing sim card to fit. This may sound complicated, but it’s actually quite straight forward – especially if you use a MicroSim Cutter Tool.
MicroSIM Cutter Tool
The sim cutter tool takes all the hassle out of cutting your card to size, just slide your sim into it, press the lever and hey presto, one fully functioning Micro Sim Card.
You’ll need to make sure that you put your sim card in the right way up or you may end up cutting the sim card and rendering it useless.
Currently only iPhone 4 and iPad use micro sims, but over the next few years I’d expect them to appear in more smartphones and tablets.