Smart Phones while Travelling Internationally

The best mobile (or cell phone) for travelling are smart phones (ios or android). They are the best way to optimize communication while travelling. They work everywhere you can connect to the internet even if it is on Wifi. These days most of these phones will find the appropriate network or carrier in the country that you travel to when you turn the phone on but check this and learn how to change the network/carrier if you have to do it manually. Your phone instruction book will tell you how to do this.