If I put my phone sim in a 4G compatible tablet, will it work?

I have an iPhone Xr, and am looking at getting a tablet to use on occasion with 4G. I will never use them at the same time, so I don't want to pay for two plans if I can just pop my sim from the phone into the tablet. The locked carrier for the tablet and phone would be the same. Hotspoting from my phone to the tablet isn't an option.

Just try it and see and then you'll know

I tried that a while back on a cellular iPad mini and it worked. At that time, I had T-Mobile, so I took out the SIM from my phone and put it into the iPad mini and it worked just fine. I was able to browse the web through 4G without any problem. I even tried my Mexican Telcel SIM that I had left over from a recent trip and it worked fine.

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