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Pick a destination, data allowance and validity period.

Compare Japan eSIM plans by data, validity, listed territory, device support, tethering and checkout total. Choose for your complete route through Tokyo, Kyoto, Osaka, Hokkaido or western Japan, not just the arrival airport.
A Japan itinerary can involve terminal-specific airport stations, several rail companies, reserved intercity services and a separate local transfer to the hotel. Data can help retrieve current routes, tickets, translations and bookings where service is available, but tunnels, underground stations, mountains and rural Hokkaido may interrupt reception. Keep the first transfer, accommodation address and next confirmed departure offline.
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Check the package details for the first-use deadline and validity rules.
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Customer support
Contact support before or during your trip if you need help.
On dependable Wi-Fi, confirm that the phone is unlocked and eSIM-compatible, then install without assuming installation starts the plan. Save the QR code and manual setup guide somewhere accessible without that phone. On arrival, follow the chosen plan's activation and validity rule, select the Japan profile for mobile data, and disable data switching and roaming on the home line unless deliberately required.
Pick a destination, data allowance and validity period.
Scan the QR or auto-install in the app — no physical SIM.
Data activates on first connection at your destination.
In total, a 10 GB data allowance covers roughly 3,300 shared photos, 167 hours of social media and browsing, 29 hours of video calls, 125 hours of music streaming, or about 2000 hours of maps and navigation. Messaging apps barely use data.
Important cities in Japan
Tokyo · City guide
Tokyo starts with the airport printed on the booking, not a generic airport train. Narita offers JR and Keisei services with different city destinations, and Terminal 1 uses a different station from Terminals 2 and 3; Haneda offers Keikyu and Tokyo Monorail choices. Use data to check the current terminal, service, platform and hotel handoff where reception is available. Keep the chosen route, ticket record and address offline because underground sections and large stations can interrupt access.
Tokyo eSIM — online before you land →Kyoto–Osaka · City guide
A Kyoto–Osaka journey usually has several stages: the Shinkansen or another intercity service, a local railway or subway connection, then the walk or bus to the accommodation. An IC card can simplify many journeys, but acceptance depends on the card, area and form of transport, and some services need a separate ticket or reservation. Use data to confirm the live platform and final transfer where available, while storing the complete route, reservation and hotel instructions offline before entering a tunnel or busy station.
Kyoto–Osaka eSIM — online before you land →Sapporo–Hokkaido · City guide
Sapporo may be the first stop, while the Hokkaido itinerary continues by train, bus or rental car toward ski areas, national parks or smaller towns. Weather changes, long distances, tunnels and rural terrain make city reception a poor guide to the next leg. Use data where available to check current departures, weather notices, lodging messages and pickup details, but download the full route and return plan. Keep booking references and an independent safety plan offline rather than treating mobile data as an emergency service.
Sapporo–Hokkaido eSIM — online before you land →Fukuoka–Hiroshima · City guide
Travel between Fukuoka, Hiroshima and nearby islands can combine a domestic flight or Shinkansen reservation with subway, tram, bus or ferry stages. Confirm the arrival station or terminal, reserved service, local connection and accommodation entrance separately; a rail ticket or IC card does not necessarily cover every stage. Data can help retrieve current departures and contact a hotel where service is available, but coastal routes, tunnels and ferry legs need saved tickets, meeting points and a complete offline fallback.
Fukuoka–Hiroshima eSIM — online before you land →Why Horizon
Size the plan for airport transfers, rail days, city navigation and regional side trips. Check whether hotspot use, calls or SMS are included and whether validity starts at installation, activation or first network use. A Japan-only listing does not establish service in Korea, Taiwan, Hong Kong, China or on a ferry; every country or territory on a regional itinerary must appear in the exact plan details.
Compare the listed data allowances and validity periods for your destination.
Install over reliable Wi-Fi before departure and follow the plan's activation instructions.
Review the current price, data, validity, coverage and fair-use terms before checkout.
When the selected plan supports reuse or top-ups, My eSIMs shows the eligible options for the installed profile.
We'll alert you as you approach your limit. If the plan supports a top-up, My eSIMs shows the eligible options.
Choose country, regional or global coverage and check every destination in the plan details.
Compare the data amount, validity, exact territory, compatible devices, tethering terms and final checkout total for the complete itinerary. Check whether calls or SMS are included, how support is reached and what event starts validity. Do not choose from the Tokyo arrival alone if the route also includes Hokkaido, western Japan, islands or an international stop.
Install on dependable Wi-Fi early enough to solve compatibility or setup issues, but first read the exact plan's start rule because installation, manual activation or first network use may be treated differently. Save the QR code and manual guide outside the phone. On arrival, follow the provider instructions, select the Japan profile for data and keep the home line from switching to data unexpectedly.
No. Narita and Haneda have different rail systems and destinations, and Narita's station depends on the terminal. IC cards work across many services, but official guidance notes that acceptance varies by card, area and transport type; some highway buses and other services do not accept them. Confirm the exact terminal, train, reservation and local connection, and retain the ticket record offline.
These features are product-specific. A data-only plan may support app-based calling and messaging through its data allowance without providing a Japanese phone number or ordinary SMS. Tethering can also depend on the plan and device. Read the product details before purchase, test the required app account and keep an alternative way to reach hotels, transport operators or travel companions.
A Japan-only listing does not establish coverage in South Korea, Taiwan, Hong Kong, China or at sea. Even when a trip remains within Japanese territory, island or ferry reception must not be inferred from city service. For a regional plan, verify that every country and territory appears in the exact included list, and download border, port, ferry and arrival details before departure.
Use dependable Wi-Fi to confirm that the Japan profile is enabled and selected for mobile data, then follow the plan's instructions for activation, data roaming, APN and any listed network selection. Turn off unexpected data switching on the home line and restart only if instructed. Keep the profile installed; if data still fails, send support the order reference, device model, exact location and screenshots while using saved routes and tickets offline.