Shinkansen Private Room (Supreme Class Cabin): Price, Trains and How to Book

Tokaido Shinkansen · Tokyo to Kyoto and Osaka · Supreme Class Cabin

By Nobu · Sources checked 11 October 2026 · A researched guide, not a ride report · Verified against JR Central’s Supreme Class site and its 17 June 2026 release with JR West, the English Smart EX product page, price charts and FAQ, and the official Japan Rail Pass site

Yes, the Tokaido Shinkansen now has private rooms. JR Central and JR West call them Supreme Class Cabin (スプリームクラス). Their release set the start for 1 October 2026, and JR Central’s train schedule, updated that day, lists the trains that carry them: some N700S trains between Tokyo and Hakata. Each of those trains has two lockable rooms: one in car 7 for up to two people and one in car 10 for one. From Tokyo to Kyoto on a regular-season Nozomi, booked on Smart EX, the car 7 room is ¥60,240 and the car 10 room ¥41,840 (Smart EX price chart dated 17 June 2026). Advance reservations are available only through Smart EX or EX Reservation, usually from one month before travel; JR Central also says empty Cabins may be sold on board, but that is not guaranteed. A Japan Rail Pass cannot reserve one. I have not been inside one of these rooms; everything below comes from the operators’ own pages.

Jump to: What it is · Price · Cabin or Green Car · Which trains · How to book from abroad · JR Pass · Booking rules · FAQ

What is the Supreme Class Cabin on the Shinkansen?

JR Central’s release of 17 June 2026 calls Supreme Class the top class on the Tokaido and Sanyo Shinkansen, above the Green Car. It comes in two forms. The Cabin is a fully enclosed room with an electronic-lock door and went on sale first. The Seat, six semi-private seats behind a locking door in car 10, is scheduled for fiscal 2027.

Each fitted N700S train has one Cabin in car 7 and one in car 10:

On Nozomi and Hikari trains, a drink and a sweet are included once per passenger. Further drinks and snacks, including some sold only in Supreme Class, are ordered from the tablet and brought to the room. JR Central lists both services for Nozomi and Hikari only, and not on trains or sections without an onboard attendant.

JR Central posts this logo near the door closest to each Cabin, which is how you find your room on the platform. The logo includes Mount Fuji, but which side of the train the Cabin windows face is unconfirmed: on 11 October 2026 neither the release nor the English facilities page said. The seat letters in Mt. Fuji from the Shinkansen: which seat, both directions are for ordinary and Green Car seats only; they don’t tell you anything about the Cabins.

How much does a Shinkansen private room cost?

The price is for one booked passenger and buys the whole room. It includes the base fare and the Shinkansen supplement. These are Smart EX prices for one adult, one way, in the regular season, from the Smart EX price chart dated 17 June 2026:

Take ¥200 off in the off-peak season, add ¥200 in the peak season and ¥400 in the busiest season. EX Reservation, the members’ service with an annual fee of ¥1,100, prices the same rooms a few hundred yen lower (¥60,500 and ¥42,100 for Tokyo–Shin-Osaka). On 11 October 2026, JR Central’s English Supreme Class pages mentioned only Smart EX.

Children’s tickets are a separate rule from room capacity, and the two official sources word the age differently. On 11 October 2026, JR Central’s English Supreme Class page said an accompanying car 7 passenger “6 year old or younger” needs no ticket, while the Japanese Smart EX FAQ (Nos. 1549 and 1568) allows preschool children (幼児, “1 to under 6”) to travel free, up to two per ticketed adult or child, and babies under one without limit. Those are ticket rules; the room limits (car 7 up to two people, car 10 one) are stated separately, so ask JR Central before bringing a child into a Cabin. If your child is exactly 6, confirm with JR Central before booking.

Private room or Green Car?

For one person going Tokyo to Kyoto, using the two published Smart EX fare charts, the car 10 room comes to ¥23,000 more than a Green Car seat on a regular-season Nozomi. The Cabin prices come from the chart dated 17 June 2026, the others from the chart dated 1 April 2025, both as posted on 11 October 2026; check the Smart EX price on the day you book:

What the room adds is a locked door and controls of your own. If what you want is simply a more comfortable seat, the Green Car costs less than half as much.

Which trains have the private rooms?

Only some N700S trains carry the rooms, and JR Central is adding more over time. Its schedule updated on 1 October 2026 lists 12 trains a day, six each way. Ten of them run between Tokyo and Kyoto/Shin-Osaka; the two Kodama trains run only between Tokyo and Nagoya. The schedule warns that some trains are confirmed only on the day and that a train can be swapped for one without Cabins after an inspection or a weather delay. The times below are from that schedule; check the day’s trains before you plan around one.

The Nozomi trains run on to or from Hakata. Three of the trains stop at Odawara, the Shinkansen station for Hakone (Tokyo to Hakone: Romancecar or Shinkansen): Hikari 633 leaves Odawara at 8:11 and Kodama 833 at 15:05, both westbound, and Kodama 854 leaves at 22:50 for Tokyo. The Kodama trains stop at every station between Tokyo and Nagoya, including Mishima and Shin-Fuji, and have no welcome drink. To see what runs today, use the “Today’s Trains” search on JR Central’s Supreme Class page, or pick “Supreme Class Cabin” under train type on its departures board.

How to book a Shinkansen private room from abroad

Advance reservations for the Cabin are available only through JR Central’s two online services, Smart EX and EX Reservation. Separately, JR Central’s release says empty Cabins may be sold on board; that depends on a room being free and is not guaranteed. The Smart EX FAQ, checked on 11 October 2026, says it cannot be bought at station ticket offices or travel agency counters, and JR Central’s reservation page says it was not sold on “EX from LINE”. For a visitor, Smart EX is the route: its English site says there is no annual membership fee and that you can buy from your own country before you arrive. The Smart EX app is offered only in some countries’ stores (the United States, Canada, Australia, Singapore, Hong Kong, Malaysia and Thailand, with a separate app for Taiwan); elsewhere, use the website.

Read the official Smart EX Supreme Class product page for the full conditions, then book on Smart EX (official English site):

1. Register for Smart EX. You need an email address and a credit card. Payment must be made by the member as card holder, aged 18 or older, and Smart EX warns that a card without 3D Secure authentication may not work.
2. Wait for the sales window. Rooms go on sale at 10:00 a.m. Japan time one month before the travel date. JR Central’s release adds that trains confirmed only on the day go on sale from 5:30 a.m. that day. As of 11 October 2026, Smart EX said Supreme Class was not part of its one-year-ahead booking.
3. Choose Supreme Class as the seat type. JR Central’s English reservation page says to select Supreme Class under “Seat Types” in the app (“Seat Type” in the browser), after which the trains with a Cabin can be reserved. One reservation is for one person.
4. Board with a QR ticket or IC card. Paper tickets can’t be picked up for this product. Your QR ticket or IC card opens the ticket gate and then the room: the Smart EX FAQ says visitor members hold the QR ticket up to the Cabin’s tablet camera, and IC card users touch the card reader beside the door.

Changes are free and unlimited as long as you haven’t gone through the gate; Smart EX’s English page says the train can be changed up to 4 minutes before departure, within three months of the original travel date. Payment is in yen, and Smart EX notes that each change charges the new fare before refunding the old one, so a card that adds foreign transaction fees may add them each time. Cancelling before departure costs ¥320. If your train is cancelled or swapped for one without Cabins, Smart EX says to change the booking yourself before the departure time.

Does the Japan Rail Pass cover the private room?

No. The pass cannot book a Cabin. The official Japan Rail Pass site marks Supreme Class with its own symbol in the facilities table: reservations cannot be made with the pass, and if you want to use it, you ask the train staff on board. JR Central’s release also says empty Cabins may be sold on board. As of 11 October 2026, neither page said what a pass holder would pay for one on board.

Buying the separate “NOZOMI MIZUHO” ticket doesn’t change that. A pass holder needs that ticket just to board a Nozomi at all; it does not make a Cabin bookable with the pass. On Hikari 633 and 648 and the two Kodama trains, the pass covers an ordinary seat (or a Green Car seat with a Green pass), with the same Cabin rule. The pass site also excludes the S Work cars on the Tokaido and Sanyo Shinkansen. For whether the pass pays for itself on a Tokyo–Kyoto–Osaka trip, see JR Pass vs individual tickets in 2026.

The car 7 companion is an open point. The Smart EX FAQ, checked on 11 October 2026, listed non-reserved, reserved and Green Car tickets, discount tickets and travel packages for the companion, and did not name the Japan Rail Pass. Confirm with JR Central before relying on a pass for the second person; station counters don’t sell the Cabin itself.

The pass covers ordinary (or Green) seats on Hikari and Kodama trains. It cannot book a Cabin, and the onboard price for pass holders was unconfirmed on 11 October 2026.

Booking rules to know before you pay

Arriving in Kyoto or Osaka, and flying in

If Kyoto is your first stop, 15 places you can reach from Kyoto Station in under 90 minutes lists day trips from the station, and Kyoto in November 2026 covers booking rules and crowd timing. If you haven’t booked flights yet, start from our flights and airports page.

FAQ

Sources