Suica & NEX is a facility granted to foreign nationals who visit Tokyo & Yokohama. It is a facility of payment (by using a Smart Card with RFID technology), including to pay the Narita Express which is known by the name of this NEX (Train from Narita Airport to Tokyo & Yokohama) and other payment transactions both travel / shopping.
By comparing the regular price of NEX (without using the Suica & NEX), you will know how to help (read profitable when using the NEX & Suica card is).
For details please visit its official website. : http://www.jreast.co.jp/e/suica-nex/
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