South Korea eSIM data plans, from $4.90 fixed or $2.90 per day unlimited
Can I activate my plan later?
Yes. You have 180 days to activate your eSIM after purchase, and once you scan the QR code you usually have 30 days to start using it. So buy whenever the flight deal strikes, and only scan the code a day or two before you travel.
Not connected within 15 minutes of landing?Full refund. No questions asked.
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An eSIM for South Korea that activates in minutes, with no physical SIM and no roaming fees. It connects to the same local networks residents use, so you get fast 4G/5G from the moment you land.
- Ready in 2 minutes
- No roaming fees
- 24/7 support
- Instant deliveryQR code by email and in the app, seconds after checkout.
- Data only, drama freePure mobile data for South Korea. Your number and WhatsApp stay exactly as they are.
- Hotspot includedTether laptops, tablets, and underprepared friends.
- Flexible activation180 days to activate after purchase. Validity starts on first connection.
- Top up anytimeAdd data from the app in seconds when you run low.
- 24/7 human supportReal people on chat around the clock, not a bot maze.
Three steps, zero stress
How to get an eSIM for South Korea
- Step 1
Choose your plan
Pick a fixed data pack or Unlimited for your South Korea dates. Checkout takes about a minute.
- Step 2
Scan the QR code
We email it instantly. Scan it in your phone settings and the eSIM installs itself. No shop, no queue.
- Step 3
Land and connect
Turn on the eSIM line when you arrive in South Korea. Data starts flowing before baggage claim does.
Why StrongeSIM
Why get a Strong eSIM for South Korea
Online in about 2 minutes
Buy, scan, done. Your South Korea eSIM installs faster than the seatbelt sign turns off, and connects automatically when you land.
Flat prices, zero surprises
From $4.20, paid upfront. No roaming invoice waiting at home like a bad souvenir.
Keep your own number
Your home SIM keeps handling calls and texts while StrongeSIM carries the data. Two SIMs, one phone, no juggling.
Real local 4G and 5G
We put you on leading South Korea networks, the same ones locals use. Maps, calls, and an honest amount of reels, all at full speed.
Unlimited South Korea eSIM: what it is and what to expect
An unlimited South Korea eSIMkeeps you online for your whole trip without a single fixed data bucket to run down. Instead of buying, say, 10 GB and watching it vanish, you get a generous high-speed allowance that refreshes every day — so you can use maps, messaging, social media, email and calls over data from the moment you land in South Korea until the day you fly home.
How the daily allowance works (fair-use policy)
Like every reputable “unlimited” travel plan, ours runs on a fair-use policy so the local networks stay fast for everyone. Each day you get up to 2 GB at full 4G/5G speed. After that, your data keeps working at a reduced speed (around 1 Mbps) for the rest of the day — still fine for chat, maps, email, music and standard-definition video — and full speed returns automatically at the daily reset. You are never cut off, and you are never charged extra.
What to expect on your trip
For everyday travel — navigation, ride-hailing, WhatsApp and iMessage, social posts, browsing, boarding passes and video calls — the full-speed allowance is comfortably enough for most travellers. If you plan to stream in 4K or download very large files, you may reach the day’s high-speed limit sooner; when you do, video simply continues at a lower resolution rather than stopping.
You choose the number of days
Pick your travel dates and you pay per day, so a longer trip just adds more days — no overage fees and no surprises. Your plan then counts down from activation, which is why the timing below matters.
Activate only when you arrive in South Korea
Your plan's days start the moment you switch the eSIM on, not when you buy it or the dates you picked. Install it anytime, but only turn it on once you're in South Korea.
They talk about us
- eSIMradareSIM comparison
- TravelTech WeeklyFeatured provider
- Nomad's NotebookEditor's pick
- The Roaming ReportBest value 2026
- SIMcompareTop rated
- Jetset JournalRecommended
From the road
Why travelers pick StrongeSIM for South Korea
425 traveler reviews
“Honestly bought it as a backup and ended up using it as my main line. Speeds were better than my hotel WiFi. Topped up once from the app while standing in a queue.”
Jonas K.10 days in South Korea
Download the Strong eSIM app now
Get StrongeSIM on Google Play or the App Store. Buy plans, track your data, and top up from anywhere, even a departure lounge.
Good to know
South Korea eSIM FAQ
Buy a plan, scan the QR code we email you, and your phone gets a digital SIM for South Korea. It connects to fast local networks the moment you arrive. Your home SIM stays in place for calls and texts, so nobody has to learn a new number.
Fixed data plans for South Korea start at $4.20, and Unlimited Data runs about $3.90 per travel day. Either way it is a flat price you see before paying, which is more than your roaming bill can say.
No. The eSIM installs alongside your physical SIM, so there is nothing to eject, lose, or drop between two seats on the plane. Land, switch on data roaming for the eSIM line, and you are online.
Yes. We connect you to leading local networks across South Korea, not just the capital, so road trips and remote corners stay covered.
Yes, tethering is included on every South Korea plan. Share data with your laptop, tablet, or the travel buddy who promised to sort their own internet and is now smiling at you hopefully.
Any time before you fly. You have 180 days to activate after purchase, and validity only starts when the eSIM connects to a network in South Korea. Buying early just means one less thing to do at the airport.
Travelling on from South Korea?
Most trips do not stop at one border. These are the Asia destinations travellers pair with South Korea most often, each with its own prepaid and unlimited plans. Crossing several of them on one trip? A single Asia eSIM covers them all without swapping plans at each border.
Refer a friend, earn travel data
Invite friends to StrongeSIM and you both get $5.00 in credits for every successful referral. Friendship, now with measurable returns.
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