
I’ll never forget the feeling of landing in Korea for the first time, ready to explore, only to realize my phone was completely useless. No maps, no KakaoTalk, no way to contact my friends. I had to rely on airport Wi-Fi just to find a way to get a SIM card, which was a huge hassle. I learned the hard way that planning your connectivity is just as important as booking your flights and accommodation! If you’re a tourist on a short trip, you don’t want to waste a single moment. I’ve done the research and compiled this guide to help you get the best Korean SIM card for tourists on a short stay, so you can start enjoying your adventure right away. 😊
SIM Card vs. Pocket Wi-Fi: What’s the Difference? 📶
Before we dive into the best SIM cards, let’s quickly clarify the two main options for tourists looking for mobile data.
- SIM Card (유심, yu-sim): This is a small chip you insert into your unlocked phone. It gives you a local Korean phone number and mobile data. This is ideal if you want to make local calls or have continuous data without carrying an extra device.
- Pocket Wi-Fi (포켓와이파이, po-ket-wai-pai): This is a portable Wi-Fi router that connects to Korea’s mobile network and creates a Wi-Fi hotspot. It’s great if you’re traveling in a group (as you can share the connection) or have multiple devices. However, you have to carry and charge an extra device.
For most solo travelers or those who prefer convenience, a SIM card is the way to go. It’s hassle-free and ensures you’re always connected.
Make sure your phone is unlocked! If your phone is “locked” to your home country’s network, a Korean SIM card won’t work. Contact your home carrier to unlock it before your trip.
Top 3 SIM Cards for Short Stay Tourists 🥇
When it comes to tourist SIM cards, the market is dominated by a few major players. Here are the top contenders, known for their reliability and ease of use.
1. KT Olleh SIM Card
- Why it’s great: KT has an excellent network, especially for data speeds and coverage. Their tourist SIM cards are very popular and are widely available.
- Popular Plans: They offer unlimited data plans for 5, 10, 30, and 90 days. The short-term plans are perfect for tourists. You can also get a plan that includes a certain amount of local calls.
- Where to buy: You can book online through sites like Trazy or Klook and pick up at major airports (Incheon, Gimpo, Busan) upon arrival. You can also buy them directly at KT counters.
2. SK Telecom SIM Card
- Why it’s great: SK Telecom has the largest market share and is often considered to have the best network coverage in Korea. If you’re traveling to more rural areas, this might be your safest bet.
- Popular Plans: Similar to KT, they offer various unlimited data plans ranging from 5 to 30 days. They also have an eSIM option which is perfect if your phone supports it.
- Where to buy: Pick-up is available at major airports and some city locations. Booking online is recommended for a smooth pick-up process.
3. LG U+ SIM Card
- Why it’s great: LG U+ is a very competitive option with reliable service and often slightly more affordable prices compared to the other two. Their service is excellent within major cities.
- Popular Plans: They offer unlimited data plans with varying durations. They also have a popular data-only plan if you don’t need a Korean phone number.
- Where to buy: You can pre-book online and pick up at all major airports.
How to Pick Up Your SIM Card at the Airport 🛫

Pre-booking your SIM card online is the easiest way to ensure you’re connected as soon as you land. Here’s how it usually works:
- Pre-book Online: Use websites like Klook, Trazy, or Creatrip. You’ll choose your SIM provider, plan duration, and pick-up location.
- Receive Confirmation: You’ll get an email voucher with a QR code or a booking number.
- Arrive at the Airport: Once you’ve gone through customs and baggage claim, look for the counter of the company you booked with (e.g., KT Olleh, SK Telecom).
- Show Your Documents: Present your passport and the booking voucher to the staff. They’ll install the SIM card for you and make sure it works.
Only buy SIM cards from official, recognized counters at the airport or official stores in the city. Avoid purchasing from unofficial sources or kiosks that seem too good to be true.
Frequently Asked Questions ❓
Staying connected while traveling in Korea is essential for navigation, communication, and sharing your amazing experiences. By choosing the right SIM card and planning ahead, you can make sure you’re online and ready to go from the moment you land. Happy travels! 😊