The iPhone 16 USA eSIM version typically supports only eSIM (embedded SIM) and does not support physical SIM cards. This means that if you want to use a physical SIM card, you must modify the hardware to add a SIM card slot.
Since US versions of the iPhone are usually locked to specific carriers, using an RSIM (an unlocking tool) can help bypass the carrier lock, allowing you to use SIM cards from other carriers.
