Japan eSIM

au (KDDI) 5GRakuten 5G
Hotspot
How much data, for how long?
Validity follows the selected plan terms. Refundable within 7 days if unactivated.
Going elsewhere too?
Add another country — each one is its own eSIM, all managed in one app.
Japan
3 GB · 30 days
Total
€8.59
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Japan eSIM for airport, rail and regional travel

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.

  • Refund policy

    Review refund eligibility before installation or activation.

  • Activation window

    Check the package details for the first-use deadline and validity rules.

  • Secure checkout

    Cards, Apple Pay & Google Pay — encrypted by Paysera.

  • Customer support

    Contact support before or during your trip if you need help.

How eSIM works in Japan

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.

  1. Buy a plan

    Pick a destination, data allowance and validity period.

  2. Install your eSIM

    Scan the QR or auto-install in the app — no physical SIM.

  3. Land & connect

    Data activates on first connection at your destination.

What you can do with 3 GB

In total, a 3 GB data allowance covers roughly 1,000 shared photos, 50 hours of social media and browsing, 8.8 hours of video calls, 38 hours of music streaming, or about 600 hours of maps and navigation. Messaging apps barely use data.

  • ≈ 600 hrs
    Maps & navigation
  • Unlimited
    Messages
  • ≈ 1,000
    Photos shared
  • ≈ 50 hrs
    Social & browsing
  • ≈ 8.8 hrs
    Video calls
  • ≈ 38 hrs
    Music streaming

Important cities in Japan

Tokyo · City guide

Tokyo

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

Why Horizon

Choose a Japan eSIM for every travel stage

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.

  • Better plans, built for real trips

    Compare the listed data allowances and validity periods for your destination.

  • Easy to use

    Install over reliable Wi-Fi before departure and follow the plan's activation instructions.

  • Compare the full plan

    Review the current price, data, validity, coverage and fair-use terms before checkout.

  • Reuse an eligible eSIM

    When the selected plan supports reuse or top-ups, My eSIMs shows the eligible options for the installed profile.

  • Stay connected

    We'll alert you as you approach your limit. If the plan supports a top-up, My eSIMs shows the eligible options.

  • Global & regional plans

    Choose country, regional or global coverage and check every destination in the plan details.

Frequently asked questions

How should I compare eSIM plans for Japan?

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.

When should I install and activate a Japan eSIM?

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.

Can I use one airport train and one IC card for every Japan journey?

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.

Do Japan eSIM plans include calls, SMS and hotspot use?

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.

Does a Japan eSIM work in nearby countries or on ferries?

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.

What should I do if my Japan eSIM has no data?

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.

Where next
Travel guides for Japan