on 16-10-2020 23:47
The only need for a new SIM is if your current one doesn't fit the new phone or you need 5g.
Otherwise, just use your old SIM.
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
on 16-10-2020 23:52
Just use your old sim in your new phone.
If your new phone is 5G and you need a 5G sim, you will need a new one and can get it by going instore. They will swap everything over for you.
Or call O2 on any number in this guide Guide: Coronavirus Community Help and Support Ask them to migrate your number to the new sim they send you.