WiFi access is now available on most trains on every Shinkansen line. Additionally, all major stations and many smaller stations also have free WiFi available to passengers. All trains on the following lines have free WiFi available: Tokaido shinkansen.

Yes, as of 2026, free Wi-Fi is available on virtually all Shinkansen lines, including the Tokaido, Sanyo, and Kyushu lines. The service, usually named "Shinkansen_Free_Wi-Fi," requires a simple email or social media registration. While the reliability has improved significantly, it can still experience "dead zones" when the train passes through the many tunnels of the Japanese countryside. In 2026, most "Green Cars" (First Class) and the newer N700S series trains offer enhanced speeds suitable for basic video calls, though the standard cars are better suited for messaging and browsing. For heavy users, it is a supportive peer suggestion to rent a "Pocket Wi-Fi" device, as the onboard Wi-Fi can get quite slow when hundreds of passengers are using it simultaneously. Additionally, most major Shinkansen stations now offer "JR-EAST/WEST Free Wi-Fi" which is faster and has no time limits.