EX-Press Reserve (also called EX-Press Ride) is the sister service of smartEX that uses the same EX app and system with deeper discounts aimed at Japanese business travelers. It also comes with a special EX Transit IC card just for Shinkansen gates with a unique ‘double card’ tap (EX IC card + regular Transit IC card). Mobile Suica and Apple Pay Suica users with a View card also have the unique and slightly different Express View service by registering for EX-Press Reserve in Suica App for JR Central Shinkansen eTicket travel EX Transit IC.
Fortunately JR Central is streamlining the complex service to bring it in line with the simple smartEX approach: instead of the special IC card for Shinkansen gates, members register a plain old Transit IC card (Suica, PASMO, ICOCA, Toica, etc.) and use that. Shinkansen IC cards can still be used of course but most people will probably just use Transit IC cards, including Mobile Suica and Mobile PASMO.
For Apple Pay Suica users this means Suica App Ex-Press Reserve service ends March 6, which also means a Suica App update that removes the menu item should be landing soon. From that date Apple Pay PASMO users can register their card number for EX-Press Reserve use. Keep in mind that EX-Press Reserve membership costs ¥1,100 a year and is limited to JR Central/JR West issue Express Card, JR East View Card, and certain Japanese issue credit cards.
Other EX-Press Reserve system improvements on March 6 include group ticket purchases for Transit IC card use instead of paper, and the ability to change reservations via the EX App or web site in case of Shinkansen delays.
Sister service smartEX (inbound version only) also has some improvements the biggest one being Ticketless boarding service using QR code, in addition smartEX (both Japanese and inbound versions) gains the same group ticket purchase and reservation change service, similar to EX-Press Reserve.