eSIM 日本

From Tokyo, Kyoto, Osaka and Hokkaido, Japan is a country you cross rather than sit still in — and you need data the whole way.

Network coverage in Japan

The plan uses the KDDI, SoftBank and NTT docomo networks in Japan — local infrastructure, local speeds, no roaming detour. Japan has near-total coverage including on the shinkansen and in most metro tunnels. Coverage extends to the summit of Mount Fuji during climbing season and inside most temples.

How much data do you need?

Budget 500 MB to 1 GB per day for maps, messaging and the occasional video call. If you plan to navigate continuously or work on the road, unlimited works out simpler than topping up.

What you get

• 5G and 4G data on the KDDI network in Japan
• QR code delivered by email within minutes of ordering
• Install before you fly, activates on arrival in Japan
• Keep your own number for calls and text messages
• Fixed data packs or unlimited daily data, from a few days to a month
• No contract, no deposit and no roaming bill afterwards

Setting up your Japan eSIM

Setup takes about two minutes: your QR code arrives by email straight after checkout, you scan it before you leave, and the plan activates when you land in Japan. No physical SIM, no queue at the airport, and your usual number stays active for calls and texts.

Families sharing a route, couples navigating a road trip and solo travellers checking transport all need the same thing in Japan: data that works from the first minute, without a shop visit.

Prepaid, no contract and no deposit: a straightforward way to have mobile data in Japan from the moment you arrive.