To remove the SIM card from your iPhone, you'll need to eject the SIM card tray with a special tool or paperclip.
To unlock your iPhone from its carrier, you'll likely need to contact your carrier directly to cancel your contract.
The physical SIM cards we've used for decades are slowly being phased out. With the Pixel 10 series, Google's phones have gone eSIM-only for the first time—at least if you buy them in the US. Apple ...