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Japan & South Korea

One eSIM for 2 countries ↓

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Countries in the plan · 2
Japan
South Korea

How it works: 3 steps, 1 minute

Install the eSIM at home over Wi-Fi: the plan starts with the first connection on your trip.

  1. 1Choose a plan

    Pay by card, Apple Pay or Google Pay. The eSIM appears on the page and in your e-mail.

  2. 2Install with one tap

    One button on iPhone (iOS 17.4+) or Android, no QR code.

  3. 3Turn on data roaming

    After landing, turn it on for Tutu eSIM and you're online.

Step-by-step guide → · Compatible devices →

✅ Before-you-fly checklist →

Networks and prices: Japan & South Korea

💵Starter$3.991 GB · 7 days
🏆Best value$1.50/GB20 GB for $29.99
♾️Unlimited · from$2.80/day2 GB/day at full speed, then up to 1 Mbps

11 plans for 1–30 days

One eSIM for Japan and South Korea

Who this plan is for

More and more people combine Japan and Korea in one trip: Tokyo and Seoul are only about two hours apart by plane. A week in Tokyo and Kyoto, then a few days in Seoul, or the other way round. This combo plan covers both countries with one eSIM: you install it at home, your phone is online as soon as you land in Japan, and in Korea it connects to a local network by itself. No second eSIM to buy and no hunting for airport Wi-Fi just to call a taxi or look up your hotel.

Read more

EU roaming rules don't apply in Japan or Korea, so your home operator charges its own (usually steep) rates. A travel eSIM can be bought and installed before you leave home.

Typical routes

  • Tokyo + Seoul: the classic 10–14 day trip, a week in each country.
  • Osaka and Kyoto + Busan: southern Japan and Korea's seaside city.
  • Seoul layover with time in the city: a few days in Korea on the way to Japan or back.
  • Business trip: meetings in Seoul and Tokyo in the same week.

Which networks it uses

The plan runs on 5G networks: SoftBank and KDDI/au in Japan, SKTelecom and LG Uplus in Korea. These are major national operators, so coverage in cities and on high-speed trains is usually solid.

Maps in Korea

Messaging apps and social media work in Korea just like at home. The main snag is different: Google Maps doesn't give walking or driving directions there. Install Naver Map or Kakao Map before you go. Japan has no such limits, and Google Maps works fully.

When a single-country eSIM is cheaper

To be honest: if your whole trip is only in Japan or only in Korea, a country plan is usually cheaper. 5 GB for 30 days costs:

The combo wins as soon as both countries are on your route: one purchase, one installation, one data balance instead of two plans. If China, Thailand or Vietnam are joining Japan and Korea, look at the Asia region.

How much data to get

  • Layover or 1–2 days: 1 GB for 7 days from $3.99.
  • One week (messaging, maps, translating menus, photos): 3–5 GB. 3 GB for 15 days costs $7.99, 5 GB for 30 days $11.99.
  • Two weeks in two countries: 10 GB for $18.99 or 20 GB for $29.99.
  • Lots of video, hotspot for a laptop or the kids' phones: unlimited.

Not sure? Work it out with the data calculator.

How unlimited works

Unlimited comes in 1, 3, 7, 15 and 30-day passes; a week costs $26.49. Every day the first 2 GB run at full speed, then the speed drops to 1 Mbps until the end of the day. That's still enough for messaging, maps, a translator, music and video in lower quality, and full speed is back the next day.

When the validity starts

The eSIM doesn't use up days while you're at home. The plan starts in the first covered country where the eSIM connects to a network, and the days count from that moment. You can buy well ahead: the plan has to be activated within 180 days of purchase.

How to install and switch it on

  1. Buy the eSIM on the website or in our Telegram bot and pay by card, Apple Pay or Google Pay.
  2. Install it at home over Wi-Fi with the "Install on iPhone / Android" button or by scanning the QR code.
  3. After landing, set the eSIM as your mobile data line and turn on data roaming for it (free, the price is already in the plan).
  4. Keep your main SIM for calls and bank texts, with mobile data switched off on it.

Step by step: installation guide. Check that your phone supports eSIM: compatible devices.

Guarantee

The eSIM won't install? We'll refund you. Support answers every day in the chat on this website.

FAQ

Which countries does this eSIM cover?

Japan and South Korea. One eSIM and one plan for both countries.

How much is an eSIM for Japan and Korea?

From $3.99 for 1 GB for 7 days. 5 GB for 30 days costs $11.99, a week of unlimited $26.49.

I'm only going to Japan. What's the better deal?

Usually the Japan eSIM: Japan. The combo makes sense when both countries are on your route.

Does Google Maps work in Korea?

The map opens, but Google Maps doesn't give walking or driving directions in Korea. Install Naver Map or Kakao Map.

How does unlimited work?

The first 2 GB each day run at full speed, then 1 Mbps until the end of the day. Messaging and maps keep working after the limit.

When do the days start counting?

From the first connection to a network in Japan or Korea. The eSIM has to be activated within 180 days of purchase.

More questions (2)
Does the eSIM come with a phone number?

No, it's data only. Calls over WhatsApp, Telegram or Viber work, and your main SIM still receives bank texts.

What if the eSIM won't install?

Write to us in the chat on the website. We'll help, and if it still doesn't work, we'll refund you.

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5 GB · 30 days$11.99
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