South Korea eSIM: instant data for your trip
A South Korea eSIM from Simnity gives you mobile data the moment you land, with no physical SIM and no roaming bills. We currently offer 28 South Korea plans starting from $1.84 with validity from 3 to 180 days. Unlimited-data options are available for heavier users. Buy online, receive your QR code instantly, and connect in minutes.
Mobile coverage and networks in South Korea
South Korea has among the world's best mobile networks, with near-universal 4G/LTE and 5G availability above 90% nationwide and peak 5G speeds exceeding 1 Gbps in cities. Seoul's metro has full coverage in every station and tunnel.
The main mobile networks in South Korea are SK Telecom, KT and LG U+. Your Simnity eSIM connects to local partner networks, so you stay online across cities and most travel areas without swapping a physical SIM.
Do you need to register a SIM in South Korea?
No registration is required for a roaming travel data eSIM. Note that some products sold as a Korea eSIM that issue a local Korean number are not roaming eSIMs and can require passport registration.
What is a South Korea eSIM?
An eSIM is a digital SIM built into your phone. Instead of swapping a plastic card, you scan a QR code and a South Korea data plan is added to your device. Your normal number stays active on your main line, so you keep receiving calls and texts while you use the Simnity plan for affordable local data in South Korea.
How to set up your South Korea eSIM
- Choose a plan above based on how many days you are in South Korea and how much data you need.
- Check out and pay. Your eSIM QR code arrives instantly by email and in your dashboard.
- Scan the QR code from your phone settings while on Wi-Fi, ideally before you travel.
- Turn on the line and data roaming for Simnity when you arrive, and you are connected.
Why buy your South Korea eSIM from Simnity
- Instant delivery. No waiting, no pickup counters. Your South Korea eSIM is ready in minutes.
- No roaming shock. Pay a fixed price up front and avoid surprise carrier bills.
- Keep your number. Your main line stays active for calls and texts from home.
- Unlimited options. Heavy data days are covered with unlimited South Korea plans.
- Top up anytime. Running low? Add more data without buying a new eSIM.
South Korea eSIM FAQs
How much does an eSIM for South Korea cost?
Simnity South Korea eSIM plans start at $1.84 and go up to $89.00 depending on the data amount and validity you choose. There are 28 plans available right now.
Do I need to register or show ID for a South Korea eSIM?
No registration is required for a roaming travel data eSIM. Note that some products sold as a Korea eSIM that issue a local Korean number are not roaming eSIMs and can require passport registration.
How do I activate my South Korea eSIM?
After you buy, you receive a QR code by email and in your Simnity dashboard. Open your phone settings, choose to add a cellular or mobile data plan, scan the QR code, and turn on data roaming for the Simnity line. Most travelers are connected within a few minutes.
Which networks does a South Korea eSIM use?
Mobile service in South Korea is provided by SK Telecom, KT and LG U+. Simnity South Korea plans run on local partner networks, so you get coverage in cities and most travel areas.
Will my phone work with an eSIM in South Korea?
Any eSIM-compatible, carrier-unlocked phone works. That includes iPhone XS and newer, Google Pixel 3 and newer, and recent Samsung Galaxy S and Z models. Check Settings for an "Add eSIM" or "Add data plan" option to confirm.
How long is a South Korea eSIM valid for?
Validity ranges from 3 to 180 days, so you can match the plan to a short trip or a longer stay. Validity starts when the eSIM connects to a network in South Korea.
