日本と韓国 eSIM

eSIM for Japan and South Korea: internet without roaming

If your trip combines Japan and South Korea, this eSIM gives you mobile data in both countries with a single plan. You connect as soon as you land in Tokyo or Seoul, without looking for a store or changing cards when crossing from one country to another. The eSIM relies on the real networks of each destination: in Japan it uses the coverage of NTT Docomo, SoftBank and au (KDDI), and in South Korea that of SK Telecom, KT and LG U+. These are the operators with the best 4G and 5G in both countries, so you will have a good signal both in the city center and on the bullet train or the AREX.

Roaming in Japan and South Korea: why an eSIM is convenient for you

Neither Japan nor South Korea belong to the European Union, so "roam like at home" does not apply here. With your home plan, roaming in these destinations usually costs between 10 and 15 € per day, or is billed per megabyte at very high prices. On a two-week trip visiting both countries, that is more than 150 € just for data. With the eSIM you pay once, you know the price in advance, and you use Google Maps, the translator, messaging, and metro maps without watching the counter or getting a shock on your bill when you return.

How much does an eSIM for Japan and South Korea cost?

The price goes up depending on the GB and days you need. For a long weekend in Tokyo or Seoul, 1 to 3 GB is usually enough. For two weeks traveling through both countries, with maps, social networks, and some video, a plan of 10 to 20 GB is comfortable. If you are also going to share the connection with your partner's phone or use streaming, choose a generous plan or one with daily data. You have all the options and other destinations at all destinations.

eSIM or physical SIM in Japan and South Korea

The physical SIM card of Japan or Korea involves buying it at the airport standing in line, changing the chip (and risking losing your Spanish one) and sometimes registering your passport. The eSIM is a digital profile: you install it before leaving home and your usual number remains active to receive SMS from the bank or calls. Also, with a single profile it works for both countries, without buying a different SIM when crossing from Japan to Korea.

Does the eSIM work in Tokyo, Osaka, Kyoto, Seoul, and Busan?

Yes. The coverage covers the big cities and tourist areas of both countries. In Japan you will have data in Tokyo, Osaka, Kyoto, Nara, Hiroshima, and Sapporo, relying on Docomo, SoftBank, and au. In South Korea it works in Seoul, Busan, Incheon, Jeju, and Gyeongju, with the networks of SK Telecom, KT, and LG U+. You are covered both on the Japanese Shinkansen and the Korean KTX, in the temples of Kyoto or in the neighborhoods of Gangnam and Myeongdong.

How is the eSIM for Japan and South Korea activated?

After purchase you receive by email a QR code and instructions. You scan it from your phone settings (Settings, Mobile Data, Add eSIM) while still in Spain with WiFi, and leave the profile ready. When landing at Narita, Haneda, or Incheon you just activate the data and you are already browsing. Check beforehand that your phone is eSIM compatible and unlocked. You have the step-by-step with screenshots in our eSIM guide.