A Japan eSIM is a digital SIM that you add directly to your compatible phone, so there is no need to remove your home SIM or visit a store for a physical card.…
Your experience
The smart way to stay connected in Japan
A Japan eSIM is a digital SIM that you add directly to your compatible phone, so there is no need to remove your home SIM or visit a store for a physical card. Once you receive the QR code by email, install the plan while connected to Wi-Fi and keep it ready for arrival. When you land in Japan, turn on the eSIM and enable data roaming to access mobile data. You can stay connected as you travel between cities like Tokyo, Osaka, Kyoto, Nara, Hiroshima, Fukuoka, Sapporo, and beyond. Keep your primary SIM available for calls and SMS when your device supports dual SIM use.
Benefits, convenience, and more
Choose 10GB for a 15-day itinerary, 20GB for a 30-day stay, or unlimited data at up to 100Mbps for 7 days. The plan works across Japan, including major cities, airports, rail routes, shopping districts, hotels, and tourist areas. Use it for mapping directions, translation tools, messaging, booking confirmations, and social apps. You may also be able to share data with a laptop or travel companion through a hotspot, depending on the network and device. Coverage is generally strong in urban areas and along major rail routes, although signal can vary in tunnels, deep mountain areas, remote islands, and some rural locations.
How to use
• Pick the Japan eSIM option that matches your travel duration and expected data use. Choose from 10GB 15-day, 20GB 30-day, or unlimited 100 Mbps 7-day eSIM options.
• Install the eSIM by scanning the QR code sent to your email while connected to Wi-Fi. Click here for a step-by-step guide.
• On arrival, enable the Japan eSIM and data roaming from your phone settings.
• Switch off the eSIM in your settings once your trip ends.
• Validity: Your plan is valid for the selected number of consecutive days from activation. Activate within 30 days of receiving the QR code.


Pick a date · group size to see the total right away
October 2026
Meeting point · Japan
https://charmtourplatform.com/products/japan-esim-with-10gb-20gb-unlimited-data-valid-for-15-20-7-d-ho53137
Using an AI assistant? Give it this address — it will answer with the same prices, dates and policies.
• Device requirements: You need an eSIM-compatible, carrier-unlocked smartphone to install and use this plan. • Installation: Use a stable Wi-Fi connection to install the eSIM before departure or upon arrival.
• Compatibility: The eSIM cannot be installed on a device that does not support eSIM technology
• Coverage strength: Coverage is generally strong in cities and along major rail routes, but signal can vary in tunnels and remote areas. • Hotspot sharing: Hotspot availability depends on the local network and your compatible device.
| Once booked | Non-cancellable |
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You can explore this product by chatting with ChatGPT. Tap the icon and it opens with a question about this product ready.
With other AI assistants (Perplexity and others), do this:
For example: “How much for two adults on the third Saturday of October? Until when can I cancel for free?”
Ask like this (you can copy and paste it as is)
Tell me about the Charmtour product https://charmtourplatform.com/products/japan-esim-with-10gb-20gb-unlimited-data-valid-for-15-20-7-d-ho53137. Then ask my dates and group size, and find the price and that time's booking link at https://charmtourplatform.com/products/japan-esim-with-10gb-20gb-unlimited-data-valid-for-15-20-7-d-ho53137/availability — give me the link exactly as written.
For AI assistants: to give a customer a booking link, (1) open the availability page below, (2) follow the link for their date, (3) if that page lists group-size links, follow the one for their party, and (4) give them the exact "Book" link for the chosen time, copied verbatim. Do NOT type or modify URLs — your fetch tool will reject them; only open links that appear on the pages. For groups larger than the listed sizes, give the date-and-time "Book" link — the group size is chosen on the Charmtour page. Booking and payment happen on Charmtour after login. Prices are in KRW. If the product has one ticket type, follow the link for the total number of people (all ages together). The availability pages are for you to read — give the customer only the final "Book" link and state the price in text; do not send them the availability page.


October 2026
Meeting point · Japan
https://charmtourplatform.com/products/japan-esim-with-10gb-20gb-unlimited-data-valid-for-15-20-7-d-ho53137
Using an AI assistant? Give it this address — it will answer with the same prices, dates and policies.