Best option for obtaining Sim for MG devices

[Aquatoes]

New to the MG devices. We have a client that wants a cellular backup. How should I go about obtaining a sim / cellular service plan that is compatible with the MG devices?

Do any carrier offer an unlimited plan option?

[ConnorL]

That's a question you'll need to ask your chosen provider. Any 'mobile broadband' or 'IOT' SIMs should be fine, but each carrier has its own restrictions/limitations about how their packages can be used.

If you're just testing for now, most carriers (especially in UK & Europe) will allow a standard PAYG or Contract SIM to be used in the MG. Similarly, both UK and European carriers typically offer an unlimited data plan, US and other locations may vary.

[PhilipDAth]

You'll need to at least give us a hint as to which country you are in.

Basically look at mobile carrier web sites in your country.  You'll want an unlocked data only plan with however much data they will offer you that comes with a nano sim.