Different size sim for new phone

[MDR]

Hi

I have an old Nokia slide phone with a large (standard?) PAYG SIM card. I want to get a new PAYG smart phone which will obviously need a smaller SIM card. I haven't chosen the phone yet but I have been told a new SIM card will come in various sizes. I want to keep my O2 number, will the new SIM card reflect this?  Is this easy to do under the present circumstances as your shops are closed. Is it just a case of inserting the new SIM in the phone and it will connect?

MDR

[MI5]

@MDR 

Select the option to have a new SIM when you upgrade and it should arrive already setup with your number on it. 

If not you can do a SIM swap Guide: Sim Swap: a mini guide 2017 update 

[Cleoriff]

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