Korea eSIM or Tourist SIM Card? SKT, KT and LG U+ Compared

South Korea’s mobile networks are among the fastest you’ll use anywhere, and getting online as a visitor is cheap. The real decision is between a Korea eSIM you install before the flight and a tourist plan from a Korean carrier, which can come with a 010 phone number. That number matters more in Korea than elsewhere in Asia, because a handful of local apps won’t let you in without one. Here’s how the options compare, what they cost, and which apps care.

Korea’s mobile networks

Three carriers own the networks: SK Telecom, KT and LG U+. Dozens of budget brands rent space on them, but those are built for residents with a Korean ID, not for visitors. All three carriers run 5G in Seoul, Busan and the other cities, and you stay connected in the subway and on the KTX.

Korea came late to eSIM. The carriers only started offering it to their own customers in September 2022, which is why older guides say Korea “doesn’t do eSIM”. That’s out of date: the carriers now sell their tourist plans as eSIMs as well as physical SIM cards.

Korea tourist SIM and eSIM prices

Each carrier has roaming counters in the arrivals halls at Incheon, and at Gimpo, Gimhae (for Busan) and Jeju too. You can buy online and collect at the counter, or skip the counter altogether with an eSIM. LG U+ publishes the clearest price list, so we use it as the reference. These are the prices we found in September 2026:

Read the small print on “unlimited”. LG U+ says its tourist data has no speed cap, but some plans sold at the airport give you a few gigabytes a day at full speed and then drop to around 5 Mbps. That’s still enough for maps and messages, not for video calls. Check the board at the counter before you pay.

The 010 number and the apps that want one

This is the part that catches people out. Korean apps often confirm who you are with a text message to a Korean number, and some go further and check it against a resident registration number, which no tourist has. A data-only eSIM gives you neither.

The good news is that the apps a visitor really needs work without a Korean number. Naver Map and KakaoMap give directions without an account. Kakao T, the main taxi app, accepts foreign Visa, Mastercard, JCB and Amex cards, though sign-up by text doesn’t work with every foreign number. If it refuses yours, K.ride, Kakao Mobility’s app for visitors, lets you register with an email address or a Google or Apple account.

Food delivery is where you hit the wall. Baemin, Yogiyo and restaurant-booking apps such as CatchTable want a 010 number. A carrier plan with a number gets you past the text-message step for taxi and restaurant apps, but not into banking: LG U+ says plainly that its tourist lines can’t be used for bank or government identity checks. Korean payment apps need a local bank account whatever SIM you have, so our guide to money in Korea covers how visitors pay instead.

Korea eSIM: travel app or carrier?

Travel eSIMs bought through an app run on SKT, KT or LG U+. You install one at home and it starts working when you land. They’re data only, which is all most city trips need, and they cost about the same as the carriers’ own plans.

The carriers’ eSIMs are bought online with a passport upload. LG U+ is the easiest to read up on, and it has quirks worth knowing: the eSIM must be activated within 60 days of purchase, can’t be refunded or reissued, and won’t install on Google Pixel, Motorola or OPPO phones. The 010 number only appears once you’re in Korea. On its Korea Tour Pass and CHECK iN SEOUL eSIMs, voice packs with a 010 number start at ₩5,500 for 20 minutes.

Whichever you pick, check first that your phone supports eSIM and isn’t locked to your home carrier. The four checks in our guide to whether your phone works in Japan apply in Korea too.

Pocket Wi-Fi in Korea

The rented “egg” is still popular with families: one small router, several phones. Expect roughly ₩3,000 to ₩8,000 a day, collected at the carrier counters at Incheon and returned at the airport on the way out. The rental company holds a deposit on your credit card and charges you if the device doesn’t come back. The catch is practical: the battery runs down on long days, and everyone has to stay near whoever carries it.

Free Wi-Fi and maps

Free public Wi-Fi covers the airports, subway stations, train stations and plenty of bus stops, and the government lists the hotspots at wififree.kr. It’s handy for topping up between stops. It won’t get you across a city.

Install Naver Map or KakaoMap before you fly. Both have English menus and give walking, driving and public transport directions. Google Maps is another story. Korea gave conditional approval in February 2026 for Google to take its map data abroad, but by late September 2026 walking and driving directions still hadn’t switched on. Google handles buses and the subway; for the walk from the station to your hotel, you want Naver.

Registration: your passport now, face checks later

Tourist SIMs and carrier eSIMs are registered to your passport, scanned at the counter or uploaded online. Korea has been tightening phone sign-ups to fight scam calls: since July 2026, new lines for residents need a face check, a mobile ID or a same-day resident record. Foreigners’ documents aren’t in that system yet, and the government expects to add passport face checks in 2027. For now, nothing has changed at the tourist counter.

Don’t use a SIM registered in someone else’s name, however cheap. It can be cut off without warning.

Korea eSIM or SIM card: which one?

Before you fly, check whether you need a K-ETA, then read our guides to money in Korea, the T-money card, tipping in South Korea and the best time to visit South Korea. Travelling on? The Thailand eSIM and Vietnam eSIM guides cover the same choice there, and our eSIM, pocket Wi-Fi or SIM table for Japan does it for Japan.

Looking for the rest? Every Korea guide we’ve published, from the K-ETA to the eSIM, is sorted by topic in our South Korea travel guide.

Just landed? Our guide to getting from Incheon Airport to Seoul compares the AREX train, the limousine buses and the taxis.

Leaving Seoul? Our Seoul to Busan guide covers the KTX, the express bus and the flight.

Online and need directions? Our Naver Map English guide shows how to switch the app to English and compares it with Kakao Map and Google Maps.

Data checked: 2026-10-04