Will my mobile phone work in Japan?

Recently, phone companies have been offering some very attractive international plans. If your company has one, check it out carefully for the actual expenses.

Many students also use apps on their phone like LINE, Skype, and Viber, to talk to family and friends back home. Those have no cost as long as you are using wi-fi.

See Is there any phone planning I need to do? and

Staying Connected While in Japan.