Japan SIM card for tourists 2026: airport or eSIM?
Where to buy a SIM card in Japan, what the counter asks for, coverage in Tokyo, and when an eSIM installed before you fly is the better buy.
Short answer: A tourist SIM card in Japan is bought at a counter after you land in Tokyo; a ONE eSIM plan for Japan is installed at home on Wi-Fi, works the moment you land and leaves your own SIM and number in place. Both work in every city in this guide.
Landing in Tokyo and wondering whether to queue for a SIM card? This is how buying one works in Japan in 2026, what the counter will ask you for, and when an eSIM bought before you fly is the better deal.
Where to buy a SIM card in Japan
Visitor SIM cards in Japan come from resellers on the docomo, au and SoftBank networks rather than from the operators themselves. You find them at counters and vending machines in the Narita, Haneda and Kansai arrivals halls and in electronics chains such as Bic Camera and Yodobashi. They are data-only, sold for a set number of days, and come in a pack you set up yourself with the APN printed inside. Many visitors rent a pocket Wi-Fi router instead, which has to be collected and returned.
Tourist SIM card or travel eSIM?
| SIM card in Japan | ONE eSIM Our price | |
|---|---|---|
| Where you get it | Airport counter or a shop | On this site, in a minute |
| When it works | After the counter and the swap | The moment you land |
| Your home number | Out of the phone | Stays in for calls and texts |
| Paperwork | Often a passport and a form | None |
| Validity | Sized by the month | From one day; top up when you need |
| If it fails | Back to the shop | Refunded in full before installation |
An eSIM is a plan downloaded onto a phone that supports it, which is every iPhone since the XS and most Android flagships since 2020. You install it on Wi-Fi at home, keep the line switched off, and turn it on when the plane lands in Tokyo. The plan starts the first time it connects, not when you buy it.
Coverage in Tokyo, Osaka and Kyoto and beyond
Both a local SIM and a travel eSIM run on the same networks in Japan, so coverage is about the operator, not the kind of SIM. Our plans name their operator and whether it runs 3G, 4G or 5G; each plan card shows its best generation. In Tokyo, Osaka, Kyoto, Sapporo and Fukuoka you will have a full signal from any of them.
FAQ: SIM cards and eSIMs in Japan
- Can a tourist get a Japanese SIM card with a phone number? Not easily. A voice SIM needs a residence card, which visitors do not have, so tourist SIMs are data-only, just like a travel eSIM.
- Is a pocket Wi-Fi router better than a SIM card in Japan? A router suits a group sharing one connection, but it has to be charged, carried and returned before you fly home. A SIM card or an eSIM keeps each phone online on its own.
Before you fly
- Check your phone supports eSIM and is not carrier-locked (our device page lists every model).
- Buy the plan a few days before the trip and install it on home Wi-Fi; the QR code arrives by email in minutes.
- Keep the travel line off until you land, then turn it on with data roaming enabled for that line only.
- Leave your home SIM in for calls and texts; set the eSIM as the mobile data line.
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