What SIM to use?

[Andrew Long]

Hello, I'm in the UK and I am considering buying a FiPy. I can't find a map anywhere of Vodafone's NB-IOT coverage but O2's map of LTE-M coverage indicates a good signal in my area. Can I get a standard O2 PAYG SIM for use with the FiPy or do I need a special type of SIM to allow LTE-M use? Thank you for your help.