If you need to access the network outside of a Wi-Fi hot spot, you can always temporarily activate your roaming.
Today’s typical smartphone is loaded with apps, those handy mobile programs that can act as guidebook, map, dictionary, laptop, and travel agent—sometimes all in one. They’re lifesavers when used domestically; overseas, it’s another story. Apps use loads of data, which costs about $20 per megabyte if you’re roaming without an international plan. Add to that SMS reminders, push notifications, and location-based services—all of which draw on data—and you can see why even the most experienced of travelers have come home to shockingly high phone bills. The FCC is proposing measures to protect cell phone customers. But until then, if you’re going to use your smartphone abroad (let’s face it: we’re addicted) do it wisely.