Here’s an outstanding hack that adds a dual SIM slot to a US-sold eSIM iPhone 15/15 Pro ... you can likely install this mod for yourself. Of course, you lose some things, like waterproofing ...

including the physical SIM card slot. The iPhone 17 Air will rely entirely on eSIM technology, following Apple's decision to eliminate the physical SIM slot from iPhone 16 models in the U.S. This ...