Can I use Dual SIM (physical SIM + eSIM) on the iPhone 18 Pro, iPhone 18 Pro Max, or iPhone Duo?

Yes. All of these models support Dual SIM functionality, letting you keep your physical SIM or primary eSIM active for calls and SMS while using a second eSIMLLY eSIM purely for data. This is the easiest way to stay reachable on your home number while avoiding expensive roaming charges when you travel.