Even if you have a Japan Rail (JR) Pass, having a Suica or Pasmo (an IC card) is still highly recommended and almost essential for a smooth travel experience in Japan. The JR Pass only covers travel on lines operated by the Japan Railways Group; it does not cover the extensive "non-JR" networks, such as the Tokyo Metro, the Toei Subway, or the various private railways like Hankyu, Kintetsu, and Keihan. Furthermore, the JR Pass is not valid on local city buses (except for a few specific JR-branded ones) or the popular "Nozomi" and "Mizuho" Shinkansen trains unless a specific supplement is paid. A Suica card allows you to seamlessly "tap and go" through the ticket gates of these non-JR systems without having to calculate fare prices and buy individual paper tickets each time. Beyond transportation, Suica is a versatile "digital wallet" that can be used to pay at convenience stores (Konbini), vending machines, and many restaurants and coin lockers. In 2026, many travelers prefer to use the "Digital Suica" on their iPhone or Apple Watch, which can be topped up instantly using a credit card, providing a perfect complement to the JR Pass for short-distance inner-city travel and small daily purchases.