You can probably get a sim card adapter or if he is permanently going to be changing to the new phone you can ring your provider and they'll send you a new SIM in the correct size and put the number on it for you.
Oh the sim card adaptor looks good, hopefully that could work? The small sim isn't even the same size as the smaller bit of the bigger sim card that you can press out (if that makes any sense).
I don't understand how getting a new sim would work. All my son's data, phone number and contract allowance etc are on the iphone c5 sim card (now broken). Are you saying that if I call my son's contract provider and ask for a new sim in a bigger version, they will transfer all of that data onto a new sim?
A new SIM would not have the contact details, etc. Hopefully it's all backed up to Apple and can be retrieved but, if not, the adapter would allow him to copy any contact details on the SIM to the new phone.
I changed my phone to an iPhone the other week. Before I went to buy it in the Apple store I popped into EE shop and asked them about it. I was told that they didn’t cut them down now. They asked to look at the card and said there was no need to change it as It could be taken apart. One part is green and the other white. Was told to get Apple to do it when I bought the phone. They did exactly that. The two colours just came apart. So the change to a smart phone was seamless.