Since the iPhone 5 uses a Nano SIM, you’ll have to trim it to fit. There are numerous tutorials out there on how to do this. I followed this one (PDF).
Some notes on cutting a SpeakOut SIM to Nano-SIM size:
- First of all, do this at your own risk. If you mess up, the SIM will be destroyed.
- I just used a scissors and cut very slowly, using the iPhone 5 SIM tray as a guide.
- If your SIM has 10 contact points (instead of the smaller newer SIMs with 6 contact points), you will have to cut into the unused contacts on SIM. Do this carefully and very slowly. Don’t cut into the embedded chip itself (see the tutorial above).
- Contrary to what others have said, the SIM thickness doesn’t matter. No need to sand it down. It fits fine. Here’s a photo of the different sizes of SpeakOut SIMs (click to zoom):
Unfortunately, most SpeakOut SIMs have 10 contact points on them, so you’ll have to cut through the unused ones: