Users can easily switch between different carriers & networks without having to physically swap out SIM cards thanks to the dual SIM slots, which offer flexibility when traveslots meaning in tamilling. This feature lets users stay connected without paying expensive roaming fees, which is especially helpful for foreign visitors who must use local SIM cards in other countries. Reduced expenses & increased security. Taking advantage of various plans and promotions from multiple carriers is another benefit of the iPhone 15's dual SIM slots.