Unfortunately, not all iPhones support Dual SIM, so we’ve made it easy to find the right one. Difference Between a nano-SIM ...

Short for embedded SIM, eSIM involves activating a mobile network on a SIM card already present in the iPhone for phone calls, text messages, and internet connections.

Apple ditched the ditched the physical SIM card slot in favor of the eSIM in the iPhone 14 series in select markets. Using eSIM, users can use multiple cellular plans on a single device.