Unlocked phones offer great flexibility to international students, tourists and business travelers. Since international roaming rates with your current phone and U.S. network can be high, buying an unlocked phone for overseas travel can save you money. With an unlocked phone, you'll pay the same lower rate as the locals do for calls in that country. It can be as easy as purchasing an unlocked phone in the U.S., traveling to your destination country, and purchasing a local SIM card.

It's a good idea to buy your unlocked phone before your trip because you can use it at home as well as overseas. Plus, you'll be able to get used to your new phone, add your contacts and download your apps before you go.