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🇯🇵 Japan

Japan eSIM

Mobile data that works the minute you land. Install before you fly, switch it on when you land, keep your own number for calls.

Travel data in Japan without the roaming bill

Roaming with your home carrier in Japan is the expensive way to stay online, and hunting for a local SIM at arrivals costs you an hour and a passport photocopy. A travel eSIM is a second, data-only line you install from your sofa: pick the plan, install it on home Wi-Fi, and switch it on when the plane doors open.

Plans come as daily unlimited or fixed data packages, so a long weekend and a month-long trip do not cost the same. Prices and validity are shown in the app before you pay, and there is no contract or deposit.

Before you buy: the three-second check

  • Your phone supports eSIM (iPhone XS and newer, Pixel 3 and newer, recent Galaxy S and Z) and is carrier-unlocked.
  • You install it before you fly, on Wi-Fi. Activation needs a working connection.
  • Your normal SIM stays in place for calls and bank codes. Turn its data roaming off.
  • If you plan to tether a laptop, check the package details, hotspot is set per plan.

If something goes wrong in Japan

Most "it is not working" moments are a settings toggle, and support is a real person who walks you through it rather than a help-centre article. If the eSIM itself is faulty, you get a 1-for-1 replacement free for the whole length of your trip, not only on day one. And if your plans change before you activate it, an unused eSIM can be handed back, which the big eSIM stores do not offer.

FAQ

Japan eSIM questions

Will my phone work with a travel eSIM?
Most phones from the last few years do: iPhone XS and newer, Pixel 3 and newer, recent Samsung Galaxy S and Z models. Two things to check: the phone must support eSIM and it must be carrier-unlocked. A few region-specific models ship with eSIM disabled, so check your settings before you buy.
When should I install it?
Install before you fly, on home Wi-Fi. Installing needs an internet connection, and airport Wi-Fi is a gamble. Once it is installed you just switch the line on when you land.
Does it replace my normal number?
No. A travel eSIM is data-only and sits alongside your normal SIM, so you keep your number for calls and bank OTP codes. Turn data roaming off on the home line to avoid surprise charges.
I am going to China. Anything special?
Set it up completely before you arrive: once you land, the Great Firewall blocks the activation pages. Plans routed outside mainland China keep Google, WhatsApp and Instagram working without a VPN, which is the whole point of buying before departure.
What if it does not work when I land?
About nine times out of ten it is a settings toggle and support walks you through it in a couple of minutes. If the eSIM itself is genuinely faulty, you get a free 1-for-1 replacement for the whole length of your trip, or a refund. Support is a real person, not a bot loop.
Can I return an eSIM if my trip is cancelled?
Yes, if it has not been activated yet. That is rare in this market: most travel eSIM stores treat every sale as final. Refund eligibility depends on the plan, so check the package details or ask support before you buy.
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