Plan brief

Everything you need
before you go.

Your plan, your setup and a little help along the way.

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01

Your plan

A little space for your plan.

Choose an allowance above. We’ll show its networks, hotspot details and what happens when your data is used.

Choose a plan ↑

02

Getting connected

Land first.
Then install.

1. Before you fly

   Your setup details arrive by email.

   We’ll email your setup details when your eSIM is ready. Save the email for your arrival.

   Wait until you have landed before using Quick Install, scanning the QR code, entering the manual code or activating the eSIM.

2. After you land

   Connect to Wi-Fi. Then install.

   Join the airport’s passenger Wi-Fi and complete its sign-in screen. Open a webpage to check you’re connected.

   Then open your SIM Shop setup email and follow the instructions to install and activate your eSIM.

   Before you go onlineSelect your travel eSIM for mobile data and turn on Data Roaming for that eSIM. Keep data roaming off on your usual SIM.

   Wi-Fi not working? Wait for hotel Wi-Fi or another steady, trusted connection before installing.

Phone checkYour phone comes first.

Check that your phone supports eSIM and is network unlocked before buying.

Check my phone ↗I’ve checked my phone

For the journey

South Korea eSIM data for the journey

Arriving at Incheon for Seoul, taking the train to Busan or flying on to Jeju? Save your accommodation addresses in Korean, transfer details and tickets before leaving Wi-Fi. Check the selected plan’s supported network for each stop; tunnels, underground sections and remote areas can interrupt a connection.

Messages and calls in apps use your data. Standard calls, SMS and a local number need a separate mobile service.

Compare the available plans

Choose a fixed data allowance for your trip. Compare the total data, validity and price, then check the selected plan’s coverage and start window.

Buy South Korea eSIM data before you travel. Pick the data amount that fits your trip and save the setup email, but do not tap quick install, scan the QR code, enter the manual code or activate the eSIM before departure.

Seoul, Busan and Jeju

Arriving at Incheon for Seoul, taking the train to Busan or flying on to Jeju? Save your accommodation addresses in Korean, transfer details and tickets before leaving Wi-Fi. Check the selected plan’s supported network for each stop; tunnels, underground sections and remote areas can interrupt a connection.

Data does not replace a Korean mobile number

Maps and messaging use data, but some local booking, delivery or verification services may require a Korean number or other account checks. Do not buy a data-only plan on the assumption it will satisfy those requirements. Prepare the accounts you need before travelling and check alternative booking methods.

For Seoul plus Tokyo or Osaka, compare the Japan and South Korea range with two country plans. The regional allowance is shared across the trip and does not refill when you cross the border. Choose enough validity for the whole route as well as enough data.

These plans are data-only unless a product option says otherwise. They do not include a local phone number for standard calls or SMS. Check compatibility, coverage, validity and hotspot needs before purchase.

Recommended setup timing: buy before you fly, then install only after you land. Join the airport’s free passenger Wi-Fi where offered, complete its sign-in page and open a normal webpage to prove it works. If it is unavailable or unstable, wait for hotel Wi-Fi or another steady trusted connection. Open your SIM Shop setup email and install only when that Wi-Fi test works.

Planning this trip?

Compare one Japan/Korea plan with two country plans.