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Roamoji › eSIM › Japan

Best eSIM for Japan

Compare travel eSIM providers for Japan and get online the moment you land.

eSIM options for Japan

Plans and prices are shown live on each provider's site. We don't publish prices that can go stale.

Airalo

One of the largest eSIM stores, with country, regional and global plans for Japan. Install via the Airalo app or a QR code.

See Airalo plans for Japan

Yesim

Country plans for Japan plus pay-as-you-go data, managed in the Yesim app.

See Yesim plans for Japan

Saily

Data plans for Japan from the team behind NordVPN, with built-in security features in the app.

See Saily plans for Japan

GigSky

Worldwide and regional plans; useful if your trip covers several countries or a cruise.

See GigSky plans

Drimsim

Pay-per-use data in many countries, available as an eSIM or physical SIM.

See Drimsim plans
Local time nowAsia/Tokyo
CurrencyJapanese yen (JPY)
Plugs & voltageA, B · 100 V
eSIM checkDial *#06# → EID shown?

Before you land in Japan

Setting up your Japan eSIM

  1. Check your phone is unlocked and supports eSIM (dial *#06# and look for an EID).
  2. Buy a Japan or regional plan and install it on Wi-Fi before you travel.
  3. On arrival, switch the eSIM line on, enable data roaming for that line only, and set it as your mobile-data line.
  4. Keep your home SIM on for calls/SMS if you need them, but turn off its data roaming.

FAQ

What is the best eSIM for Japan?

It depends on how long you're staying and how much data you need. Airalo, Yesim and Saily all sell Japan plans; compare their live prices and data caps using the links on this page, and check that unlimited plans don't have a low daily speed cap.

Do I need an eSIM or a local SIM in Japan?

An eSIM is easiest if your phone supports it: you can install it before you leave and be online as soon as you land in Japan. A physical local SIM can be cheaper for long stays but usually means a shop visit and ID.

When should I install my eSIM for Japan?

Install it at home on Wi-Fi a day or two before departure, but only switch the line on (and enable its data roaming) when you arrive, so the plan's validity doesn't start early.

What currency, plug and time zone does Japan use?

Japan uses the Japanese yen (JPY). Plug types and voltage: A, B · 100 V. Local time zone: Asia/Tokyo.

Affiliate disclosure: Roamoji is free because some links are affiliate links (Travelpayouts partners such as Airalo, Yesim, Saily, AirHelp, Kiwitaxi and Radical Storage). If you buy through them we may earn a commission at no extra cost to you. It never changes what our tools calculate. Prices and plans are always shown live on the provider's site; we don't publish prices we can't verify.