Korea Review 2026 - Is Korea's eSIM reliable?
At a glance
Reviews & ratings
Pros & cons
👍 What we like
- ✓Plans specifically designed for travelers in South Korea.
- ✓Choice between several South Korean networks, including SK Telecom, LG U+ and KT.
- ✓Availability of offers with unlimited data.
- ✓Some plans include a 010 Korean number, calls and SMS.
- ✓Delivery of the eSIM QR code by email after purchase.
- ✓Option to choose an eSIM, USIM card or WiFi Egg router.
👎 What we like less
- ✗Coverage limited to a single destination: South Korea.
- ✗Calls, SMS and the Korean number are not included in all plans.
- ✗Compatibility depends on the product; some eSIM offers are reserved for unlocked iPhones.
- ✗USIM cards and WiFi Egg routers may require airport pickup.
- ✗Performance and speed vary depending on the plan and selected network.
What is Korea?
What is Korea eSIM?
Korea eSIM is a prepaid connectivity solution offered by Prepia for people traveling to South Korea. The provider sells eSIMs, physical USIM cards and WiFi Egg routers, with offers using local networks SK Telecom, LG U+ and KT. Plans notably include Korea eSIM Red on SK Telecom and Korea eSIM Sky on LG U+. Depending on the chosen product, they offer unlimited data, a daily limit followed by reduced speed, a Korean number and calls or SMS. An eSIM is sent by email as a QR code, then installed on an unlocked compatible phone before or during the trip.
Plans overview
Destinations covered by Korea
Coverage broken down by region. Tap a region to see its countries.
Our verdict
Korea eSIM offers prepaid solutions for travelers in South Korea. Its eSIMs, USIM cards and WiFi Egg routers use SK Telecom, LG U+ or KT, with plans including unlimited data and, depending on the offer, a Korean number.
Popular alternatives
Frequently asked questions
No, Korea is not a scam: it is a reliable, well-known eSIM with a 3.7/5 rating in our test, coverage dedicated to a single destination (South Korea) and access to local 4G/5G networks (speed depends on local coverage). Just make sure your phone is eSIM-compatible before buying.
No: Korea covers a single destination, South Korea. The eSIM does not work outside this destination, and network quality on site depends on the local partner operator.
The main downsides we found in our test: Coverage limited to a single destination: South Korea, Calls, SMS and the Korean number are not included in all plans, Compatibility depends on the product; some eSIM offers are reserved for unlocked iPhones, USIM cards and WiFi Egg routers may require airport pickup and Performance and speed vary depending on the plan and selected network.
It depends on your destination and budget: Korea scores 3.7/5 in our test, but the best value changes by country. Compare current deals in our comparator before choosing.
For a one-day stay, Korea eSIM Red is the shortest recorded offer. It costs 3.9$ and provides unlimited data at 100 Mbps as well as a 010 Korean number to receive calls and messages, subject to passport registration for voice services.
Tethering is indicated as available for Korea eSIM Red, Korea eSIM Sky and Korea USIM Blue+. However, check the conditions of the selected product before purchasing.
Yes, some plans provide a Korean number. Korea eSIM Red provides a number starting with 010, Korea eSIM Sky a number starting with 012, and Korea USIM Blue+ a number starting with 010.
Calls and SMS are only available with certain plans. Korea eSIM Red allows receiving calls and messages after the required registration, while Korea USIM Blue+ includes calls and SMS without limitation according to the displayed conditions.
The phone must be unlocked and compatible with an eSIM. Korea eSIM Sky is reserved for unlocked iPhones; Korea eSIM Red is indicated as compatible with iPhones and Android devices compatible with eSIM.
The QR code is sent by email within minutes after purchase for eSIM offers displayed on the official site.
The official site states that returns and refunds are not accepted after purchasing an eSIM. Check the applicable conditions before ordering.
Some physical products can be picked up at several international airports in South Korea, including Incheon, Gimhae, Gimpo, Daegu and Jeju. The pickup location depends on the chosen product.
What to do if Korea doesn't work?
Make sure the phone is unlocked and compatible with an eSIM, use a stable WiFi connection and ensure the profile has not already been installed on another device.
Select Korea eSIM for mobile data, activate data roaming if necessary, then disable and re-enable Airplane mode or restart the phone.
Check that the chosen plan includes voice services and SMS and that the required passport registration for these services has been completed.
Check the plan conditions. Korea eSIM Sky applies a speed of 5 Mbps after 3 GB of 4G LTE data at full speed per day. Also verify the selected network and local coverage.