A smartphone can hold your boarding pass, hotel reservation, maps, credit card, and the only copy of your rental car confirmation. It can also rack up roaming charges, lose its internet connection at the worst possible moment, or expose personal information on an unfamiliar Wi-Fi network. A few minutes in your settings before departure can prevent some impressively annoying travel problems.
Your phone doesn’t automatically know how you plan to use it abroad, how much mobile data your trip requires, or which information you might need without an internet connection. Five settings deserve attention before your suitcase leaves the bedroom floor.
