Japan tips: phones, wi-fi and apps

By the Japan Travel Costs team. Each tip links to an official or reputable source, last checked 2026-10-22. Anything we could not verify is left out or labelled. About us.

A quiet Kyoto street lined with traditional wooden houses

Staying online in Japan is straightforward. Free Wi-Fi exists, but you will want your own data for maps and train times.

  1. 1.Free Wi-Fi is patchy, so bring data

    Airports, many stations, hotels and cafes have free Wi-Fi. For reliable coverage on the move, JNTO suggests a pocket Wi-Fi router or a SIM or eSIM.

    Source: JNTO: Wi-Fi in Japan. Last checked 2026-10-22.

  2. 2.Check your phone is unlocked

    A local SIM only works in an unlocked phone. Check with your carrier before you leave home.

    Source: JNTO: Wi-Fi in Japan. Last checked 2026-10-22.

  3. 3.Install the Safety tips app

    The Safety tips app, supervised by the Japan Tourism Agency, pushes earthquake early warnings, tsunami and weather warnings in several languages.

    Source: JNTO: Safety tips app. Last checked 2026-10-22.

  4. 4.Visit Japan Web at major airports

    At Narita, Haneda, Kansai, Chubu, Fukuoka, New Chitose and Naha you can start the tax refund check online via Visit Japan Web, using the dedicated Wi-Fi in the departure lobby.

    Sources: Japan Tourism Agency: Tax-free page for travellers, JNTO: Japan's new tax-free shopping system. Last checked 2026-10-22.

  5. 5.Set up mobile Suica before you need it

    Welcome Suica Mobile needs Apple Pay and a card in your own name. Set it up on hotel Wi-Fi rather than at a busy gate.

    Sources: Welcome Suica Mobile FAQ: compatible devices, JR East: Welcome Suica. Last checked 2026-10-22.

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