JR East and Sony held an open demonstration of next generation Suica showing Mobile Suica Ultra-wideband (UWB) use in walk-through gates (JR East) and UWB touchless payments (Sony), taking place at the Takanawa Gateway City Studio open space area just outside of JR Takanawa Gateway City North exit gates, part of the larger GATEWAY Tech TAKANAWA 2026 event. Unlike the lowkey demonstration at OIMACHI TRACKS in April, the May 13~14 open demo at Takanawa Gateway had a lot of JR East and Sony staff on site giving attendees hands on demos along with a 3 hour press conference for media on the 14th.
JR East has already announced plans to test Mobile Suica UWB walk-through gates in Shinagawa area stations from early 2027 but the UWB Mobile Suica payment demo was new and far more slick than the UWB touchless mobile payment demo by Sony and NTT in 2019. There will be lots of detailed coverage from Junya Suzuki and other IT journalists after the press briefings with JR East, Sony. and others. Suffice to say that while today’s goods are still ‘demos’, developments and technology are quickly coalescing; I don’t think shipping products will be much different.
Walk-through
Of all the walk-through gate technology being tested recently: face biometric, millimeter radio wave and Bluetooth (BLE); UWB is the most promising, practical and suddenly white hot because it effortlessly extends the reach of embedded secure element NFC already used in Apple Wallet, Google Wallet and Osaifu Keitai. UWB offers high accuracy of 10 to 30 millimeters compared to BLE 6.0 accuracy of only about 1 meter. UWB signals can span up to 200 meters however current Japanese regulations limit outdoor use to tens of meters. UWB also performs better in environments with obstacles or interference, whereas BLE operates in the crowded 2.4 GHz band. UWB’s superior accuracy and reliability make it ideal for secure distance checks leveraging the NFC eSE platform smartphones already use.
In today’s demo the UWB walk-through gate was a standard JREM IC green model with a slightly protruding UWB antenna module (shown below), the chip is almost certainly NXP UWB as Sony doesn’t make those. The simplicity suggests UWB can be added to recently updated JR East station IC gates without replacement. The demo was also very simple: JR East staff handed visitors an Android Osaifu Keitai device preconfigured with UWB Mobile Suica and they walked through the gate. Data transaction starts at the 15 cm point, gates open just before you reach the midway point, roughly where the UWB antenna is located.
I wanted to test the gate with the device inside my backpack but for security reasons I had to use a loaner clear plastic shoulder bag. Staff assured me it works fine with smartphone inside a backpack on your back. People were trying it out with strollers, walking at speed in pocket, holding phone to head as if in mid-conversation. It all worked like it’s been around for years already, boring even. A good thing because a slightly different and easier way of using Suica is easy to deploy and will be instantly convenient for people with strollers, wheelchairs, walking sticks and not to mention, the rest of us. That’s the best part, it works just like Suica always has, only better. Judging from behind the scenes chatter, Mobile Suica UWB walkt-hrough feels like a done deal; the centerpiece of JR East’s Suica Renaissance.
Junya Suzuki posted a diagram of the UWB walk-through gate process that is exactly the same process for Apple Wallet UWB Digital Car Keys: 1) initial detection via BLE, 2) Virtual zones defined by the gate, welcome zone, transaction zone, etc., 3) Precise UWB ranging, system switches to UWB for centimeter level accuracy and trajectory tracking. UWB process details are covered in Apple’s UWB car key developer video. One of the most important developer aspects of the process is creating a fast and accurate localization algorithm that in this case likely involves JR East (Mobile Suica), JREM (gate hardware) and NXP. (UWB chip). Unlike a car that needs to have multiple UWB antennas to detect a digital key coming in from different directions, a UWB walk-through gate only has one as users approach in a straight line.
The demo smartphone had no UI or feedback, just a lock screen showing the UWB tracking range. It’s safe to assume Apple Wallet UWB Mobile Suica UI be the same Express Transit one we have now because JR East wants Mobile Suica to be the same exact Mobile Suica experience regardless of UWB walk-through or NFC tap.
At the May 14th JR East press conference, Kenta Imai of JR East’s Marketing Headquarters, Suica & Payment Systems Division clearly stated: “UWB is the frontrunner for walk-through gates. To achieve the processing speed needed in the Tokyo metropolitan area, we believe our expertise makes it the optimal choice….we want to start a proof-of-concept experiment in the Shinagawa area as early as spring 2027.” Coming from a JR East Marketing exec, this is saying, “UWB is the real deal for walk-through gates, we’re rolling it out.” Just like the original JR East and Sony co-develped Suica, they are cooperating again to deliver UWB Mobile Suica. And where JR East and Sony go, JR West and JR Central will be close behind.
UWB Mobile Suica e-Money purchases aka farewell Express Transit Mode
The surprise of today’s JR East demo was UWB Mobile Suica e-money payments. Checkout was surprisingly simple: stand in the designated checkout area (blue), position the device (similar to locating an AirTag), swipe the Suica card up to confirm payment, exactly like the CokeON app. It was slick and natural, the haptic feedback was very helpful reinforcing the visuals, letting you know everything was ready to go. After posting a video clip a user pointed out the Suica demo balance was over the current ¥20,000 limit, if the forthcoming Teppay feature coming to Mobile Suica app supports UWB at some point, that could be a big deal.
Unlike UWB walk-through gates where Express Transit Mode fits, UWB Mobile Suica store purchases have to use ‘secure intent’ Apple Pay, especially if the Suica e-money balance is moving beyond the current limit. You don’t people walking around with device in pocket getting charged for purchases. I asked the demo staff about this and they said today’s demo UI was just that…a demo. The actual purchase process UI will follow digital wallet guidelines for Apple Pay, Google Wallet, etc. Mobile Suica will have the same Express Transit experience for NFC and UWB at transit gates, but not in stores.
Easy checkout is one thing but there are lots of questions and gaps to fill. How are cart items added, what about using coupons, or reward points? UWB payments could be great and I can see it being immediately useful for things like drive-thru checkout. However, a good shopping experience is far more than the sum of its various parts, just look at the shopping horrors of self-checkout we face everyday with barely functional store staff and crappy POS interfaces. If the various parts of the total shopping experience don’t get fixed, UWB touchless payments will end up as a wasted opportunity.
The larger picture of ‘Suica Renaissance’
The buzz at today’s event confirms what Junya Suzuki said in his recent article: UWB walk-through gates are quickly moving from concept to reality, with strong industry momentum and the original Suica dream team (JR East + Sony) fully behind it. After years of Sony treading water with NFC developments from the NFC Forum, Sony is suddenly hot about UWB and Mobile FeliCa’s industry position in related developments. It’s one reason why Samsung is extending Mobile Suica support to non-JP model Galaxy devices in 2027, just in time for those Shinagawa area walk-through installations. UWB had reached a tipping point.
The lowkey demo event confirmed this with over 1,900 lining up on the first day, a work day, despite utter lack of any publicity. Various companies quietly present at the event are quickly joining together: JR Group members (not just JR East), Sony, JCB, and others (with JR East and Resona Holdings recently joining the FIRa UWB consortium). UWB walk-through gates are suddenly the ‘Suica Renaissance’ start point and poster child. Junya Suzuki’s Pay Attention installment on the demo has more technical details on the UWB walk-through process (multi-antenna trilateration, etc.) On the iPhone front we might see some UWB developments from WWDC26 in June. I’ll update this post as more information becomes available. 2027 is shaping up to be busy, and fun, year.
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