In this article I will cover some of the travel IC card (SUICA) alternatives that are Android compatible…
Buying a Suica card
For those who don’t know what that is, Suica is an IC card which can be used (among other things) to pay for public transport around Tokyo, and the rest of Japan.
Public Transport in Tokyo
I think it is fair to say that the Tokyo metropolitan area has arguably one of the most efficient public transportation systems on the planet.