Connected in South Korea
eSIM South Korea
Land at Incheon or Gimpo and get online on SK Telecom, from Seoul to Busan and Jeju
Choose a South Korea eSIM plan
Choose the perfect plan for your South Korea adventure
1 GB
7 Days- 1 GB Internet
- Wi-Fi Hotspot Allowed
- Instant Activation
- Validity Starting on First Use
3 GB
30 Days- 3 GB Internet
- Wi-Fi Hotspot Allowed
- Instant Activation
- Validity Starting on First Use
5 GB
30 Days- 5 GB Internet
- Wi-Fi Hotspot Allowed
- Instant Activation
- Validity Starting on First Use
10 GB
30 Days- 10 GB Internet
- Wi-Fi Hotspot Allowed
- Instant Activation
- Validity Starting on First Use
All plans include 4G/5G coverage across South Korea • No contracts • Instant Activation
Why travelers choose Esimy
- No contracts
- 24-hour days, counted from your first connection at your destination
- Add data to the same eSIM anytime
- Wi-Fi hotspot: Allowed on all plans
Before you buy your South Korea eSIM
Is my phone compatible?
Quick check: dial *#06# on your phone. If an EID number appears, your phone supports eSIM. It also needs to be carrier-unlocked.
How much data do I need?
A rough estimate based on typical use. Video and hotspot use the most data.
South Korea eSIM: SK Telecom data from Incheon to Jeju
Esimy’s eSIM for South Korea gives you mobile data on SK Telecom’s 4G/LTE network. Install it on Wi-Fi before you fly, turn on data roaming when you land at Incheon or Gimpo, and you’re online in the arrivals hall.
SK Telecom gives strong coverage in Seoul, Busan, Daegu and Jeju, in the subway and along the KTX lines, so the Korea eSIM keeps working on the train from Seoul to Busan or on a day trip to Gyeongju or Jeonju. Signal can be weaker on high trails in national parks such as Seoraksan and Hallasan, and on some smaller islands.
Getting around Korea depends on apps. Google Maps has limited walking and driving directions here, so install Naver Map or KakaoMap, use Kakao T for taxis and Papago to translate menus and signs. Plans go from 1 GB for 7 days to 20 GB for 30 days, and validity starts at first connection in Korea, not on the day you buy.
The plan is data only, with no Korean phone number, calls or SMS. Keep your home SIM on for texts and call over WhatsApp, KakaoTalk or FaceTime. There’s no passport check, the QR code arrives by email straight after purchase, hotspot is allowed, and you can top up the same eSIM from your dashboard or the Esimy app. Heading on to Japan? This plan covers South Korea only, so add our eSIM for Japan for that leg.
South Korea eSIM at a glance
- Networks
- SK Telecom
- Speed
- 4G/LTE, 5G where available
- Plans
- 5 · from 1.99 €
- Validity
- 7–30 days 24-hour days, counted from your first connection at your destination
- Wi-Fi hotspot
- Allowed on all plans
- Calls & SMS
- Data only
- Top-up
- Add data to the same eSIM anytime No new QR code needed
- Delivery
- Instant delivery by email and in the Esimy app
- Refunds
- Within 30 days of purchase if the QR code hasn't been scanned Refund policy
Compare South Korea eSIM plans
Need help with your South Korea eSIM?
Real people, 24/7Message our support team on WhatsApp or by email. We help with installation, activation and connection problems, day and night.
How Esimy Works?
Select a Package
Choose from range of multiple countries/packages.
Scan QR Code with instructions received over your email
Easy activation with email details or our intuitive website dashboard.
Ready for travel!
Have the best trip possible without internet hassles.
Manage your eSIM with the Esimy App
Install, activate, and track your data — all from your phone.
- Add data to the same eSIM anytime
- Free 1 GB on every app order of 3 GB or more
- Send eSIMs as gifts and redeem the ones you receive
- Get notified about your data usage
- 5% back in your Esimy Wallet on every order
- Invite friends: €3 for you and €3 for them
Get it now
Available on the App Store and Google Play
eSIM vs Physical SIM Card in South Korea
Compare the benefits of using an eSIM data plan versus a traditional SIM card for international travel to South Korea.
South Korea Travel and Connectivity Guide
What to know about data, maps and transport before you land in Korea
Coverage areas
Seoul (Myeongdong, Hongdae, Gangnam, Jongno, Itaewon, Yeouido), Incheon and Gimpo airports, Busan (Haeundae, Seomyeon, Nampo-dong), Daegu, Gyeongju, Jeonju, Gangneung, Sokcho, Jeju City and Seogwipo, the Seoul and Busan subway networks and the KTX lines between major cities.
Network
Connects to SK Telecom (SKT) on fast 4G/LTE. Coverage is strong in Seoul, Busan, Daegu, Incheon and Jeju City, in the Seoul and Busan subways and along the KTX lines and main highways. Signal can drop on high trails in Seoraksan, Jirisan and Hallasan national parks and on some smaller islands, so save your route before a long hike. We don’t throttle on our side; real speed depends on signal, location and your phone.
Data usage tips
• 1–3 GB: a short stay in Seoul with Naver Map, Kakao T, Papago and messaging
• 5–10 GB: one or two weeks across Seoul, Busan and Jeju with photos, social media and some video calls
• 20 GB: a month-long stay, remote work, streaming on long KTX rides or regular hotspot use
Tourist highlights
Gyeongbokgung Palace and Bukchon Hanok Village; N Seoul Tower on Namsan; Myeongdong and Hongdae for street food and shopping; DMZ day tours from Seoul; Haeundae Beach, Gamcheon Culture Village and Jagalchi Fish Market in Busan; Bulguksa Temple and the Silla royal tombs in Gyeongju; Jeonju Hanok Village; Hallasan and Seongsan Ilchulbong on Jeju; Seoraksan National Park near Sokcho.
Apps that help
Naver Map or KakaoMap for walking, transit and driving directions (Google Maps has only limited walking and driving directions in Korea); Kakao T for taxis; Papago for translating menus, signs and conversations; KakaoTalk, the messaging app most Koreans use; Korail Talk for KTX tickets; and a T-money card for the subway, buses and convenience stores.
Roaming tips
South Korea is outside the EU roaming zone, and roaming on your home plan here can be expensive. Before you land, set the Esimy eSIM as your mobile-data line and turn on Data Roaming for it, then turn off Data Roaming on your home SIM so it can’t run up charges while it stays on for calls and texts. The plan covers South Korea only: if you continue to Japan by plane or on the Busan–Fukuoka ferry, add a Japan eSIM.
Why travelers choose Esimy South Korea
- Runs on SK Telecom 4G/LTE in Seoul, Busan, Jeju and along the KTX lines
- QR code by email straight after purchase, with no passport or ID check
- Validity starts at first connection in Korea, not on the day you buy
- Hotspot allowed for a laptop or a travel companion’s phone
- Top up the same eSIM from your dashboard or the Esimy app, while your home SIM stays on for calls and texts
Best time to visit
- Spring (April–May): mild weather and cherry blossoms, from late March on Jeju and in the south to early April in Seoul
- Summer (June–August): hot and humid, with monsoon rains from late June to late July; beach season in Busan and Jeju
- Autumn (September–November): dry, clear days and fall colors, from mid-October in the mountains to early November in Seoul
- Winter (December–February): cold and dry, with skiing and ice festivals in Gangwon Province
Support
24/7 support via live chat, email and WhatsApp.
eSIM FAQs
Common questions about using eSIM in South Korea
Is an eSIM better than a Korea SIM card for tourists?
For most trips it is simpler. A tourist SIM card from an airport counter usually means a queue, showing your passport and taking out your home SIM. The eSIM installs before you travel with no ID check, and your home SIM stays in the phone for calls and texts. A local SIM card only makes more sense if you need a Korean phone number, which our data-only eSIM doesn’t include.
Is there one eSIM for Korea and Japan?
Not in one plan: the Korea eSIM covers South Korea only. For the Japan part of your trip, add our eSIM for Japan. Both can be installed on the same phone, and you switch the mobile-data line when you fly or take the ferry from Busan to Fukuoka.
Which phones work with the eSIM?
Unlocked, eSIM-capable phones, including recent iPhone, Samsung Galaxy and Google Pixel models. Check our list of supported devices before you buy.
Can I use the Korea eSIM as a hotspot?
Yes. Hotspot and tethering are allowed, so you can share data with a laptop, a tablet or a travel companion’s phone. Sharing uses data faster, so the 10 GB or 20 GB plan makes more sense if you hotspot often.
Which plan size fits a typical Korea trip, and is there unlimited data?
- 1 GB (7 days): a stopover or a few days in Seoul with maps, taxis and messaging
- 3 to 5 GB (30 days): one or two weeks with Naver Map, Papago, social media and photos
- 10 GB (30 days): longer trips, video calls and streaming on KTX rides
- 20 GB (30 days): a month-long stay, remote work or regular hotspot use
- Unlimited: we don’t sell unlimited data for Korea; if 20 GB runs low, top up the same eSIM
Can I top up my eSIM for Korea?
Yes. Top up the same eSIM from your Esimy dashboard or the Esimy app; you don’t need a new QR code. That helps if you start with a smaller plan in Seoul and then add a week in Busan or Jeju.
How do I install and activate my South Korea eSIM?
- Buy online with no ID check; the QR code arrives by email straight after purchase.
- On Wi-Fi, scan it from your phone’s mobile or cellular settings (Add eSIM), before you fly or after you land.
- In Korea, turn on Data Roaming for the eSIM line and set it as your mobile-data line. The APN sets itself.
- Validity starts at first connection in South Korea, not at purchase.
Does the eSIM work outside Seoul and the big cities?
Yes. SK Telecom covers Busan, Daegu, Gyeongju, Jeonju, Gangneung and Jeju well, along with the KTX lines and main highways, so you stay online on train rides and road trips. Signal is weaker on high trails in national parks such as Seoraksan, Jirisan and Hallasan, and on some smaller islands. Save your route or trail map before a long hike.
Will it work at Incheon and Gimpo airports?
Yes. Install it on Wi-Fi at home or on the airport’s free Wi-Fi, then turn on Data Roaming for the eSIM line when you land at Incheon or Gimpo. You can check AREX train times into Seoul, open Naver Map or message your hotel before you leave the terminal. It works the same way at Gimhae Airport in Busan and at Jeju Airport.
Which network does the South Korea eSIM connect to?
It runs on SK Telecom (SKT), the largest mobile operator in South Korea. Expect fast 4G/LTE. We don’t throttle on our side, so real speed depends on signal, location and your phone.
Is there a Korea eSIM with a phone number?
No. It is a data-only eSIM: no Korean number, no calls and no SMS. Use WhatsApp, KakaoTalk, FaceTime or LINE for calls and messages, and keep your home SIM active in dual-SIM for texts such as bank codes. Some Korean apps and websites ask for a Korean mobile number to sign up, and a data-only eSIM can’t receive those codes.
What is the best eSIM for South Korea?
Compare the network, the validity, hotspot and top-ups rather than headline speeds. Esimy’s Korea eSIM runs on SK Telecom’s 4G/LTE network, plans last 7 days (1 GB) or 30 days (3 to 20 GB) from first connection in Korea, hotspot is allowed, and you top up the same eSIM instead of buying a new one. It is data only, so it suits travelers who call over WhatsApp or KakaoTalk and keep their home SIM for texts.
