Rakuten Mobile launches public Wi-Fi spots as mobile data use doubles

Public Wi-Fi returns because mobile life got heavy

Public Wi-Fi used to feel like a relic from the era of laptop cafés, hotel lobbies and login screens that asked too many questions. Then the phone became television, wallet, ticket, map, office, camera, translator, child pacifier, weather radar, social feed and emergency boredom machine. Suddenly the old idea is useful again.

Rakuten Mobile’s new public Wi-Fi service is a small announcement with a large everyday logic. The company says mobile usage has become more diverse as video viewing and social-network use expand, and that average monthly data use per subscriber has more than doubled over the past three years. In a country where commuters gather in stations, shoppers collect in malls, tourists stream maps and videos, and office workers live between screens, that growth is not abstract.

The company began sequentially providing “Rakuten Mobile WiFi Spot” on June 19 for subscribers to Rakuten Saikyo Plan, Rakuten Saikyo U-NEXT, Rakuten Saikyo Plan Data Type, and selected business voice-and-data and data-only plans. The initial focus is congested urban commercial facilities. In plain English: where people gather, phones suffer, and networks sweat.

Why this is a business story, not just a service notice

Public Wi-Fi is easy to dismiss because it feels small. A telecom company adds hotspots. Customers connect. Everyone moves on. But the business story is deeper. Rakuten Mobile entered Japan’s telecom market as a disruptive fourth carrier, pushing price competition and building a cloud-native, Open RAN-heavy mobile network. That story has often been told through base stations, subscriber counts, debt, roaming, and coverage. Wi-Fi spots add a different layer: traffic management at the human bottlenecks of urban life.

Mobile networks are built with spectrum, cells and capacity planning. Human beings, unfortunately, do not distribute themselves politely across a spreadsheet. They crowd into stations, food courts, concert exits, shopping centers, tourist corridors and office districts. The network must handle not only national averages, but local moments when thousands of people decide to upload the same fireworks clip.

Wi-Fi offload is not glamorous, but it is practical. If mobile traffic can be shifted to local Wi-Fi in selected congestion zones, the customer may get a better experience and the mobile network may get relief where it most needs relief. The strategy is almost humble: do not solve every capacity problem only with towers and spectrum. Put another pipe where the crowd already is.

What Rakuten Mobile says the service does

Rakuten Mobile says the service will be provided sequentially to eligible subscribers and that the available areas can be checked through its official customer-support page. It also notes that data communication through the service will not be counted toward monthly data usage.

That last detail matters for customers. If Wi-Fi traffic does not count against usage, then the hotspot becomes not only a speed or congestion tool, but also a comfort tool. Users can stream, message, browse, update apps or navigate without mentally calculating whether they are burning through a plan. In Rakuten’s case, where “unlimited” has been central to its consumer brand, the point is less about rationing and more about experience quality.

The release includes compatibility notes: the service is not available on smartwatches, Wi-Fi routers, smartphones without Wi-Fi, and certain products. It is available on iPhones running iOS 26.4 or later and Android 11 or later devices equipped with Google Wi-Fi Provisioner.

The invisible enemy: network congestion where life clusters

Japan is one of the world’s great cluster societies. Train stations become temporary cities. Malls become weekend villages. Major events become mobile-data stress tests. Tourist districts become translation, map and photo-upload factories. In those places, the user does not care about radio-planning theory. The user cares whether the ticket opens, the payment works, the message sends and the child’s video does not freeze at the exact moment peace was about to happen.

Rakuten Mobile’s press release says the service will begin in commercial facilities in city centers where congestion is likely. That is a revealing phrase. The company is not positioning Wi-Fi as a rural coverage substitute or a premium lounge perk. It is positioning it as urban relief.

That makes sense. Dense urban usage is where customer perception is formed. A network can perform well on average and still feel weak if it struggles at the places people remember: the station platform, the mall escalator, the food court, the event hall, the tourist street. Wi-Fi spots can become experience patches at the emotional map of the network.

Rakuten’s wider network story

Rakuten Mobile’s broader telecom story is unusual. It launched full-scale commercial mobile service in April 2020 and built its brand around a simpler, lower-cost unlimited-style offering that pressured Japan’s established carriers. In December 2025, the company announced that total subscribers had surpassed 10 million, a milestone reached five years and eight months after full commercial launch.

At the same time, Rakuten has been trying to make its network story technological, not merely cheap. Its announcements around Open RAN, cloud-native network functions, RAN energy optimization, nationwide RIC deployment and Rakuten Symphony have all positioned the company as a carrier that wants its telecom architecture to be part of the business model.

Public Wi-Fi sits below that grand architecture, closer to the floor. But that is why it matters. Customers do not experience Open RAN as a white paper. They experience it as “my phone works here” or “my phone does not work here.” Wi-Fi spots are one more tool to make the everyday answer less embarrassing.

Why everyday readers should care

This is one of those business stories that ordinary readers can feel. If you use your phone in Japan at a station, mall, office district, restaurant row, airport, stadium, tourist site or event, you already understand the problem. The phone says it has signal. The page loads like it is thinking about its life choices. The ticket gate app opens slowly. The map spins. The payment screen becomes a small spiritual test.

Rakuten Mobile WiFi Spot is not a revolution by itself. It will depend on coverage, speed, authentication ease, device compatibility, venue quality, and whether the hotspots appear in the places where people actually need them. But it is the kind of telecom move that turns infrastructure into lived convenience.

It also hints at a broader future. As mobile traffic grows, carriers may increasingly blend licensed mobile networks, public Wi-Fi, private networks, satellite messaging, disaster roaming and venue-specific connectivity. The customer will not care which layer carried the packet. The customer will care that the packet arrived.

The business question: who pays, who benefits, who gets the data?

Public Wi-Fi also raises a business-design question. Venue owners benefit if customers have smoother connectivity. Carriers benefit if congested mobile traffic is offloaded. Customers benefit if the service is easy and secure. Advertisers and platform businesses may benefit if better connectivity increases engagement. But the exact economics can be complicated.

Rakuten has an advantage because it is not only a mobile carrier. It is also an e-commerce, fintech, payments, content and points ecosystem. Better connectivity in commercial facilities can indirectly strengthen many pieces of that ecosystem, even if the hotspot itself is not the main profit center.

That is why the announcement is not only about radio traffic. It is about Rakuten’s attempt to make mobile service part of a broader daily-life platform. Connectivity is the road. Shopping, payments, video, content, advertising, loyalty and financial services are the traffic that may travel on it.

The risk: public Wi-Fi has to be boringly excellent

Public Wi-Fi fails when it feels like public Wi-Fi. Complicated logins, weak security, overloaded access points, inconsistent coverage, captive portals that age like neglected government forms — customers remember all of it. The service must be automatic enough to feel invisible, safe enough to be trusted, and reliable enough that users do not immediately turn Wi-Fi off and return to mobile data.

The security angle matters too. Public Wi-Fi has a long reputation problem. Rakuten Mobile’s service is carrier-provided and device-limited, which should help, but user trust will depend on implementation, authentication and clarity. A hotspot that improves speed but creates anxiety is not a victory.

There is also a strategic risk. Wi-Fi spots can improve experience in selected places, but they do not replace the need for strong mobile coverage, capacity and indoor performance. Customers do not rank excuses by technology layer. They simply decide whether the network feels good.

What to watch

A small hotspot, a larger signal

The launch of Rakuten Mobile WiFi Spot will not redraw Japan’s telecom map by itself. But it tells us something important about the map. Mobile data growth is no longer a future forecast. It is already heavy enough that a carrier built around unlimited-style usage wants another layer in the places where people gather.

That makes this an everyday infrastructure story. Not dramatic. Not a rocket. Not a semiconductor breakthrough. But extremely close to how readers live. Japan’s digital life now depends on whether the network survives the station, the mall, the platform, the queue, the escalator, the lunch rush and the Friday evening crowd.

Rakuten Mobile’s new Wi-Fi spots are a practical admission that modern connectivity is not one network. It is a stack. Cellular, Wi-Fi, fiber, cloud, apps, payments, maps and human impatience all meet in the same little rectangle of glass.

The business lesson is simple: when data doubles, the city notices. And when the city notices, the carrier has to find more places for the traffic to go.