eSIM for South Korea: prepaid data plans from $0.72
An eSIM for Korea (South) on esimbloom costs from $0.72, with 22 prepaid data plans from short-trip packs to month-long bundles. Buy online, scan the QR code from your email, and the plan activates the first time you connect in Korea (South) — no roaming charges, no contract, and your home SIM stays active for calls.
- Plans from
- $0.72
- Plans available
- 22
- Smallest bundle
- 100MB
- Shortest validity
- 7 days
- Delivery
- QR code by email, within minutes
- Plan type
- Prepaid data only — no contract
Prepaid data plans for travel in South Korea
esimbloom lists 22 prepaid eSIM plans for Korea (South) from $0.72 (the smallest is 100MB for 7 days). Every plan is data-only — mobile internet for maps, messaging and bookings, but no local phone number or SMS — and prepaid: pay once, no contract, no roaming charges.
Once you purchase, the QR code and installation instructions land in your inbox within minutes. You can install the eSIM before you leave home and activate it when you land in South Korea, or wait until arrival—either way, there's no physical card to collect and no contract to sign.
How to set up your Korea eSIM before departure
Check that your phone supports eSIM—most iPhones from XS onward, recent Samsung Galaxy and Google Pixel models, and many other flagship devices do. Open the email with your QR code, go to your phone's cellular or mobile data settings, and select the option to add an eSIM by scanning the code. The profile installs in seconds.
Keep your home SIM active for calls and texts, and set the new eSIM as your data line. Turn on data roaming for the eSIM only. When your flight touches down in South Korea and you switch off airplane mode, the eSIM connects automatically. If it doesn't, toggle data roaming or restart your device.
Staying connected across South Korea's cities and countryside
Seoul, Busan, Incheon, and Daegu all have strong mobile coverage, including metro systems, shopping districts, and university areas. Coverage extends reliably along the KTX high-speed rail corridor and into smaller cities like Jeonju, Gyeongju, and Sokcho. Tourist zones around Jeju Island, the DMZ tour routes, and national parks near Seoraksan or Jirisan generally have service, though signal may weaken on remote hiking trails or in deep valleys.
Travellers typically use data for Naver Map or KakaoMap (Google Maps is less detailed here), KakaoTalk messaging, subway apps, and booking palace or museum tickets. Streaming a few hours of video or uploading photos daily will consume 2–4 GB per week. If you're working remotely or video-calling frequently, budget for heavier use. Free Wi-Fi is common in cafes, convenience stores, and public transport hubs, but an eSIM means you stay connected between hotspots and don't need to register on public networks.
Frequently asked questions
How much does an eSIM for Korea (South) cost?
esimbloom Korea (South) eSIM plans start at $0.72, with 22 plans to choose from. You pay once for the plan you pick — no roaming fees and no contract.
Do I need an eSIM for Korea (South)?
Only if you want mobile data without roaming charges. An esimbloom Korea (South) eSIM is installed from a QR code before you fly, activates on your first connection in Korea (South), and is data-only — your home SIM stays in the second slot for calls and SMS, with its data roaming switched off.
Do I get a Korean phone number with the eSIM?
No. These are data-only plans, so you can use internet-based apps like WhatsApp, KakaoTalk, or FaceTime, but you won't receive a local phone number for regular voice calls or SMS.
When should I activate the eSIM?
Install the eSIM profile anytime after purchase, but activation begins when your device connects to a mobile network in South Korea. Most plans count validity from the moment of first connection, so wait until you arrive to switch it on.
Will my eSIM work on Jeju Island?
Yes. Jeju has strong mobile coverage across the coast and main attractions like Hallasan, Seongsan Ilchulbong, and the beach areas. Service may be patchy in the island's interior forests or rural lanes, but tourist routes are well covered.
Can I use the eSIM in North Korea or the DMZ?
The DMZ tour areas on the South Korean side are covered. North Korea is a separate country with no mobile connectivity for foreign eSIMs. Do not rely on mobile data once you cross into North Korean territory on organized tours.
How much data do I need for a week in Korea?
For maps, messaging, social media, and light browsing, 1–2 GB per week is usually enough. If you're uploading photos, streaming music, or video calling regularly, plan for 3–5 GB or more depending on usage.