Best 5 GB eSIM for South Korea 🇰🇷

South Korea eSIM is for travelers, K-pop tourists, and business visitors exploring Seoul, Busan, or Jeju Island. Having a dedicated data package gives your phone mobile internet access to look up subway routes on Naver Map, use translation tools, and stay active on messaging apps without removing your primary physical SIM card.

No passport scans, photo uploads, or formal account registrations are required before setup. Simply choose your data package online, complete checkout, and scan the QR code sent to your email to configure the cellular data profile on your smartphone.

Yes! You can purchase your travel eSIM even after arriving at your destination. The only difference from buying it before your trip is that we'll guide you to activate it immediately, allowing you to connect to a local network right away.

With travel eSIM you decide when to buy it - either before the travels, on the go using WonderConnect app, or after you arrive at your destination.

Usually, an eSIM plan starts when you first connect to mobile data at your destination.
You can install the eSIM anytime - even weeks before your trip. Installation does not start the validity period (unless you bought an eSIM for your home country; or a package that includes coverage for your home country. Example: Europe → Germany).

The countdown begins when your eSIM connects to a supported mobile network. For this to happen, your eSIM must be turned on and selected as your mobile data line.

eSIM prices for South Korea start at £2.00.

To see all available data packages and prices, scroll to the top of the page.

To use an eSIM, your device needs to be eSIM-compatible and carrier-unlocked. If you find your phone on our compatibility list, it most likely supports eSIM technology. In some cases, eSIM compatibility depends on where your phone model was manufactured. That's why we advise you to check our list before you buy one of our South Korea eSIM plans.

Carrier-unlocked means your home carrier (your mobile service provider) isn't restricting your phone from connecting to other networks. While carrier locks are becoming less common, if you're unsure, it's best to contact your provider. Just ask if they allow the use of digital SIM cards/eSIMs. If they do, you're free to avoid high roaming costs and enjoy affordable eSIM mobile data!

Setting up your eSIM requires 2 steps: installation and mobile data activation.

Step 1: Install your eSIM

Your eSIM for South Korea is ready to install immediately after purchase.

To install, choose one of these methods:
• Scan the QR code we sent you right after purchase
• Use the WonderConnect app with step-by-step installation guide and illustrations

Step 2: Activate mobile data (at your destination)

Once you arrive, complete these 4 steps:
1. In your phone settings, turn on your eSIM
2. Select the South Korea eSIM as your mobile data line
3. Enable data roaming for your eSIM (required to connect to foreign networks)
4. Turn off WiFi and test the connection by opening any website

Connection usually happens within seconds, but can take up to 10 minutes for your phone to catch the foreign network signal.
If you are using the WonderConnect app, activation instructions are accessible from the home screen.

You can buy an eSIM for vacation online from WonderConnect on this website or WonderConnect mobile app. Choose a suitable data plan, install the eSIM on your phone, and activate it following provided instructions. South Korea eSIMs start from £2.00.

Yes! Most modern smartphones support dual SIM, which means you can use both your physical SIM card and the WonderConnect eSIM simultaneously.

You install the eSIM and it works alongside your regular SIM card. You don't have to remove it from your phone.

Set the eSIM as your mobile data line. For your regular SIM card, you have two options:

• Turn it off completely to avoid roaming charges for incoming calls
• Keep it on for receiving calls and text messages

Don't worry - turning off your SIM card doesn't delete your number or contacts. You can turn it back on anytime directly from your phone settings

You can top up your South Korea eSIM using the WonderConnect app or through your web account.

Log in to your account, if you have several eSIMs, select the one you want to top up and choose a top-up package. Finalize payment and that's it.

Your top-up activates automatically when your current plan ends or when you run out of data. You can purchase it anytime - even before you need it.

It depends on the plan you select. Different plans offer different coverage - for example, a 1GB plan may cover only the selected destination, while a 10GB plan may also include 10 more countries.

To see exactly where a plan works, select it and check the Coverage section shown under the plan selection.

If you need an eSIM built to cover several countries, choose one of our regional eSIMs.

You can easily return to your original mobile data settings at any time. That's why eSIMs are a safe and convenient solution for travelers! After your trip, go to the mobile data/network settings and choose your main carrier as the mobile data provider.

Choose an eSIM with enough data, a suitable validity period, reliable local coverage, and hotspot support. WonderConnect offers South Korea eSIMs with 10 GB and 20 GB plans suited to remote work. They run on top local networks, so you can work without interruptions or roaming bills.