Using your mobile phone for internet and calls in Japan

Using your mobile phone for internet and calls in Japan

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Are you travelling to Japan soon and want to stay online without any hassle? With your current SIM card, the costs for calling and internet can add up quickly. Fortunately, there is a simple solution: a local SIM card or eSIM for Japan. This allows you to take advantage of affordable local rates and stay connected wherever you are, whether you’re walking through the neon-lit streets of Tokyo, admiring Mount Fuji or visiting the temples of Kyoto.

View of Mount Fuji surrounded by red autumn leaves; explore Japan and stay online with eSIM

Using your phone in Japan

Your mobile phone will work in Japan, but be aware that making calls and using mobile internet in Japan with your own SIM card is expensive. The solution is a local SIM card for Japan or an eSIM for Japan. This will prevent unexpectedly high roaming charges. With ready-to-use SIM cards and eSIMs, you can get started as soon as you arrive:

  • calling in Japan
  • fast mobile internet in Japan for WhatsApp, Instagram, Google Maps, etc.
  • receive free calls in Japan

For short trips such as a trip to Tokyo, the 7-day Unlimited Japan bundle is ideal. Send your friends a selfie with sushi at Tsukiji Market, from the Imperial Palace and from Go Karting at the famous Shibuya intersection. Unlimited data is also perfect for longer trips that include Mount Fuji, the beaches of Miyako Island and traditional Kyoto. This way, you can easily send a WhatsApp message from bustling Osaka or Lake Kawaguchiko.

Two women in kimono walking through a traditional Kyoto street; stay reachable in Japan with an eSIM or SIM card

Choosing a SIM card or eSIM in Japan

Mobile calling in Japan is affordable with a Japan SIM card or eSIM in your phone: local rates, no roaming. You avoid high costs for mobile data in Japan. Ideal for travelling to Japan, especially if you are travelling between different areas, such as by Shinkansen train to Sapporo and Fukuoka. You benefit from reliable 4G and 5G connections in Japan via the networks of Japan’s largest providers such as NTT Docomo. Works directly on your phone, no hassle upon arrival. You can easily continue to make calls from Japan with the accompanying Unlimited bundles. Mobile network coverage in Japan is good in cities and populated areas. Expect less coverage on your phone in nature reserves such as the jungles of Okinawa and near Nachi Waterfall. Coverage is good in cities and towns. From the Tokyo Metropolitan Towers to the Kinkakuji Golden Temple and Himeji Castle, your phone will work perfectly everywhere.

Will my phone work in Japan?

All modern phones can be used in Japan. When using a prepaid SIM card or eSIM for Japan, it is a good idea to check whether your device is SIM-free, but SIM locks are almost non-existent in Europe. If you order a SIM card or eSIM online, you don’t have to worry about compatibility if you’re wondering “can I use my phone in Japan ?”. The SIM cards for Japan can be used in any phone, and the eSIM for Japan works in any device that is compatible with eSIM.

Rows of red Japanese lanterns lighting up the street at night; stay online in Japan with eSIM

The options for mobile internet and calling

There are three options for making phone calls and using mobile internet in Japan: roaming with your own SIM card, a local Japanese SIM card, or a prepaid Japanese eSIM. Roaming is usually expensive. Due to roaming charges outside Europe, travellers are faced with high bills for using their current subscription in Japan. It is mainly the costs for data that add up. Simple actions such as WhatsApp, navigation and email become unexpectedly expensive. To avoid this, choose a local solution so that you can make cheap calls and use the internet in Japan. eSIM is ideal for modern smartphones: activation is via a QR code that you receive by email and no physical card is required. There are several data bundles available, tailored to your usage and travel duration. Furthermore, the option for hotspot and tethering is included in many bundles so that you can also use mobile Wi-Fi in Japan.

How to arrange it online in advance

Order your SIM card or eSIM online. You will receive the eSIM Japan by email. The physical prepaid SIM card Japan will be delivered to your home free of charge. You can also pick it up in person and receive expert help with installation. This way, everything is taken care of before you leave for Japan and there is no stress upon arrival. This solution is also suitable for business travellers who can choose bundles with unlimited internet anywhere in Japan. It is also beneficial for families because with the eSIM Japan, unlimited data can be shared via hotspot or MiFi.

Cherry blossoms in bloom at Osaka Castle; explore Japan and stay connected with a local SIM card

Frequently asked questions

Will my phone work in Japan?

Your phone will work in Japan. Just be aware that if you use your own SIM card in Japan, you will incur high costs for internet and calls. The solution is to get a local prepaid SIM card for Japan or an eSIM for your phone, which will allow you to make cheap calls and use the internet throughout Japan via the major networks, including NTT Docomo.

Which is better: a SIM card or eSIM for Japan?

A SIM card and eSIM for Japan do the same thing. The difference is that you physically insert the SIM card into your phone, while you install an eSIM by scanning a QR code. You will receive the QR code by email, so it doesn't matter where you are. Please note, however, that not all phones are compatible with eSIM, so check this first.

How much data do I need during my trip?

How much mobile data you need in Japan depends on what you use it for and how long you stay in Japan. WhatsApp, navigation and email do not use much data. Watching Netflix and YouTube in Japan does. The 7-day, 14-day and 30-day Unlimited bundles for Japan are useful.

How can I make cheap calls from Japan?

The cheapest way to make mobile calls from Japan is via WhatsApp. To do this, use Wi-Fi in your hotel in Japan or the data on the prepaid SIM card or eSIM you purchased for your trip to Japan. Calling with WhatsApp costs you nothing extra.

Can I renew or change my bundle in Japan?

You can always top up and renew the bundle on your prepaid SIM card or eSIM Japan. If you need more data on your phone while travelling through Japan, you can adjust your bundle.
Joost van Ommen

Joost van Ommen

Joost van Ommen is founder and owner of Airport Telecom. He is an enthusiastic traveller and he is busy every day finding new solutions for calling and internet while travelling

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