If you have a iPhone 13 or older, your device still has a physical SIM card. Here's a guide on how to remove it.

How to remove an iPhone SIM card On the iPhone 12 and above the SIM card tray is on the left-hand side of your iPhone. On the iPhones X, XR, XS and iPhone11 range the SIM card tray is on the right ...

You can remove the SIM card from your Samsung Galaxy S10 using the SIM removal tool that came with your phone, or a very thin paperclip.