The prepaid Suica card can be used on JR East trains, subways and buses.
The prepaid Suica card
The Suica card is a prepaid smart card that allows you to use most public transport (metro, trains, buses, monorail) in Japan.The card is debited for every trip or purchase you make when you touch the card to the reader.The Suica card was created by JR East, but can also be used throughout Japan on the other prepaid card networks like Pasmo.
The Suica card is already loaded and ready to use. You can add more credit if needed during your stay.
One Suica card per person is enough: once the credit runs out, you can reload the card as many times as you like at the train station.
VALIDITY OF THE SUICA CARD
The Suica card can be used on public transportation in most regions of Japan :