When you travel out side your country your cell phone most likely wont work, or you'll be hit with extra overage charges. My pervader offers $25 for 10MB of data when I travel. I did some research before traveling to Europe. I found this company Xcom Global, they offer a wifi device with unlimited dada that you rent for $15 a day when you travel. This video is a test on how good their travel wifi woks. https://www.xcomglobal.com