1 GB
Valid for 7 days
$6.99
$6.99 per GB
eSIM for South Korea
South Korea runs on a phone. You tap into the subway, call a taxi in Kakao T, read the menu through Papago, book the KTX in Korail Talk, and follow walking directions through Myeongdong on Naver Map. Almost nothing in the country expects you to be offline, which is exactly why arriving without data is uncomfortable.
The local rule that catches everyone: Google Maps does not really work in Korea. Korean law restricts the export of detailed mapping data, so Google has no driving navigation here and its transit and walking directions are patchy. Download Naver Map or Kakao Map before you fly and let your eSIM do the rest. Also worth knowing: a data-only eSIM gives you internet, not a Korean phone number, and some local services ask for a Korean number to send a verification code.
A FairSIM eSIM roams onto SK Telecom, Korea's largest network, with 5G across the cities and 4G LTE as the fallback. You install it at home over Wi-Fi, switch the line on at Incheon or Gimhae, and skip the airport SIM counter. Personal Hotspot works on every plan, so your laptop and your travel partner's phone can share it.
South Korea eSIM plans
Wholesale rates in US dollars, with nothing added at checkout. Buy in the FairSIM app and the plan is on your phone in seconds.
How long is your trip?
All plans. Pick a trip length to narrow the list.
- Get it in the app for South Korea
- Best value
5 GB
Valid for 30 days
Get it in the app for South Korea$14.99
$3.00 per GB
10 GB
Valid for 30 days
Get it in the app for South Korea$29.99
$3.00 per GB
Unlimited
Valid for 15 days
Get it in the app for South Korea$69.99
Speed policy shown in the app
Coverage in South Korea
- 4G LTE
- 5G
- SK TelecomThe largest Korean operator and the host network for the FairSIM eSIM. 5G across Seoul, Busan, Incheon, Daegu, Daejeon, Gwangju and Jeju City, with 4G LTE everywhere else, including subway tunnels and most of the KTX route.
Typical speed: Consistently among the fastest and most reliable mobile markets in the world, with fibre-grade speeds in Seoul and full coverage inside subway tunnels and department store basements.
Seoul, the Gyeonggi suburbs, Busan, Jeju and the KTX line are solidly covered. Expect 4G rather than 5G on hiking trails in Seoraksan or Jirisan, in remote valleys and on the smaller ferry islands, and short drops in long road tunnels.
How much data do you need in South Korea?
It depends on how you travel. Find your trip below, then pick the plan that matches. You can always top up in the app.
Seoul city break, 4 to 7 days
Palaces, cafes, night markets and a lot of walking.
Why data matters: Naver Map for every alley, Kakao T for taxis late at night, Papago pointed at menus, T-money top-ups and constant photo uploads.
- 7 days
- 10 GB
- 14 days
- 20 GB
- 30 days
- Unlimited
Seoul plus Busan by KTX
Two cities in one trip, two and a half hours apart.
Why data matters: Korail Talk tickets on your screen, streaming on the train, and Kakao Map for Busan's bus network, which is harder to guess than the subway.
- 7 days
- 10 GB
- 14 days
- 20 GB
- 30 days
- Unlimited
K-pop, shopping and concerts
Company stores, fan events, Coex, Dongdaemun at midnight.
Why data matters: Ticket apps, live streams, queue notifications and video calls with friends back home. Expect slow spots in a packed arena even on 5G.
- 7 days
- 20 GB
- 14 days
- Unlimited
- 30 days
- Unlimited
Jeju and the countryside
A rental car on Jeju, Gyeongju temples, a stay in a hanok.
Why data matters: Naver Map handles driving navigation where Google Maps cannot, and Personal Hotspot keeps a tablet alive in the car.
- 7 days
- 5 GB
- 14 days
- 10 GB
- 30 days
- 20 GB
Working from Seoul
A few weeks of remote work or a business trip to Gangnam.
Why data matters: Zoom and Teams from cafes, hotspot for the laptop when coworking Wi-Fi is crowded, and large file uploads on 5G.
- 7 days
- 20 GB
- 14 days
- Unlimited
- 30 days
- Unlimited
What your home carrier charges in South Korea
Daily roaming passes look small until you multiply them by the length of the trip. FairSIM plans for South Korea start at $6.99 and never bill per day.
Daily passes are the published standard rates and change without much notice. Check your own carrier's page before you decide.
| Carrier | Roaming charge | FairSIM |
|---|---|---|
| AT&T International Day Pass (US) | $12 per day per line, $6 for each extra line | from $6.99, no daily fee |
| Verizon TravelPass (US) | $12 per day, high-speed data then slowed | from $6.99, no daily fee |
| EE Travel Data Pass (UK) | About £7.50 per day on EE's non-Europe zone, with a cheaper weekly option | from $6.99, no daily fee |
| Vodafone UK | About £8 per day on the rest-of-world zone | from $6.99, no daily fee |
| Orange France | South Korea is outside Orange's included Europe zone, so you need a paid international pass; without one, data is billed per megabyte | from $6.99, no daily fee |
| Telstra International Day Pass (Australia) | A$10 per day for 2 GB | from $6.99, no daily fee |
Carrier prices as published on their roaming pages at the time of writing. They change often; check your own plan before you fly.
How FairSIM works
- 1
Pick a destination and a plan
Choose the country or region and the data you need. The price you see is the price you pay.
- 2
Tap install
On iPhone (iOS 17.4+) the eSIM installs in one tap, no QR code. Do it at home while you still have Wi-Fi.
- 3
Land and connect
Turn on data roaming for the FairSIM line when you arrive. Your plan starts when it first connects.
Connectivity tips for South Korea
Check whether your nationality needs a K-ETA before you fly; the exemption list changes, so read the official K-ETA site rather than an old blog post.
Install the eSIM at home over Wi-Fi, then turn on the line and data roaming after you land. Validity normally starts at the first connection to a Korean network.
Download Naver Map or Kakao Map before departure and set the language to English. Google Maps will not navigate you here.
Buy a T-money card at any convenience store for a few thousand won and top it up in cash. It works on subways, buses and many taxis nationwide.
Carry some cash. Card acceptance is excellent, but foreign cards still fail at some small restaurants, markets and older ticket machines.
Save your hotel address in Korean in your notes app; taxi drivers and delivery apps need Hangul, not the romanised version.
Seoul's subway stops around midnight. Set a last-train alert in Subway Korea or budget for a Kakao T ride.
Keep your home SIM in the phone with its data roaming off, so bank verification codes still arrive by SMS.
Apps you will actually use
- Naver Map the map that actually works in Korea, with driving, transit and walking directions and an English interface.
- Kakao Map the other reliable map, often better for bus stops and indoor floor plans.
- Kakao T the standard taxi app; you can pay by card in the app and the driver needs no English.
- KakaoTalk how Korea messages. Hotels, tour guides and shops will often ask for a KakaoTalk chat instead of email.
- Papago Naver's translator, stronger than most on Korean menus, signs and spoken conversation.
- Korail Talk KTX and regular train tickets, with seat selection and a QR ticket on your phone.
- Subway Korea metro maps and live timings for Seoul, Busan, Daegu and Daejeon, including last-train warnings.
- Coupang Eats or Yogiyo food delivery to your hotel; both need an address in Korean, which Naver Map can copy for you.
Google Maps has no driving navigation in South Korea and incomplete walking and transit data, because detailed map data cannot be exported from the country. Use Naver Map or Kakao Map. Uber exists in Seoul as Uber Taxi, hailing licensed cabs, but Kakao T has far more drivers. Many Korean apps ask for a local phone number to verify an account, which a data-only eSIM will not provide, so set up accounts that matter using email where possible.
Can you rely on free Wi-Fi?
Free Wi-Fi is genuinely everywhere in Korea: cafes, convenience stores, subway stations, buses, hotels and public plazas. It is fast, and Seoul's public network is one of the better ones in the world. The catch is the same as anywhere else. You lose it the moment you step onto the street, which is exactly when you need the map, and many hotspots throw up a captive portal in Korean or ask for a phone verification you cannot complete. Treat Wi-Fi as a bonus for big downloads and let the eSIM handle the walking around.
Local SIM card or eSIM in South Korea?
SK Telecom, KT and LG U+ all run counters in the arrivals halls at Incheon Terminal 1 and Terminal 2, plus Gimpo and Gimhae. Prepaid tourist SIMs are widely sold, usually as unlimited-data packages for 5, 10, 30 or 60 days, and they typically cost a few tens of thousands of won depending on length. You show your passport, the staff register the line, and you wait your turn. It works well, and the counters are used to foreign travellers, though queues after a bank of long-haul arrivals can run long.
A FairSIM eSIM is installed before you leave home, so you walk out of immigration already online, and it roams on SK Telecom, the same network many of those tourist SIMs use. The difference worth understanding is the phone number: prepaid Korean SIMs can include a local number, which helps if you need to verify a Korean app or have a restaurant call you back. FairSIM is data only. For maps, messaging, calls over WhatsApp or KakaoTalk and everything else a traveller does, data is all you need. If you specifically need a Korean number, buy a local SIM and keep the eSIM as backup data.
Good to know before you land in South Korea
- Currency
- South Korean won (KRW), written ₩
- Plug type
- Type C and Type F (two round pins, same as most of Europe)
- Voltage
- 220 V, 60 Hz
- Emergency number
- 112 for police, 119 for fire and ambulance; 1330 for the multilingual tourist helpline
- Language
- Korean; English signage on transport and in tourist areas, less so in local restaurants
- Time zone
- UTC+9, no daylight saving
- Capital
- Seoul
South Korea eSIM questions
Does eSIM work in South Korea?
Yes. Any unlocked eSIM-capable phone connects to SK Telecom with a travel eSIM. On iPhone that means XS, XR or newer; on Android, most flagships from the last few years. Korea is also one of the easiest countries for this, since local networks are fully modern.
Which network does the FairSIM South Korea eSIM use?
SK Telecom, the country's largest operator, with 5G in the cities and 4G LTE nationwide.
Is there 5G in South Korea?
Yes, widely, and your FairSIM eSIM can use it on SK Telecom if your phone supports 5G. Outside the cities and in tunnels or mountains you will drop to 4G LTE, which is still fast.
Why doesn't Google Maps work properly in Korea?
Korean law restricts exporting detailed mapping data, so Google has no driving navigation in South Korea and limited walking and transit coverage. Use Naver Map or Kakao Map instead. Both are free and both have English.
Do I get a Korean phone number?
No. FairSIM plans are data only. Calls and messages over WhatsApp, KakaoTalk, FaceTime and Telegram work normally. If you need a Korean number for local app verification, buy a prepaid local SIM as well.
Can I use Personal Hotspot in South Korea?
Yes. Every FairSIM plan supports Personal Hotspot with no separate cap, which is useful for a laptop in a cafe or a second phone on the KTX.
Should I install the eSIM before or after arriving?
Before. Install it at home over Wi-Fi, keep the line switched off, then enable it and data roaming once you land at Incheon or Gimhae.
How much data do I need for a week in Korea?
A week of maps, messaging, taxis and photo uploads runs roughly 5 to 10 GB. If you stream on the subway and the train, or work from cafes, plan on 15 GB or more, or take an unlimited plan.
Local SIM or travel eSIM for South Korea?
Airport SIM counters are good and sell unlimited-data tourist packages, but you queue, you register with your passport, and you lose your normal number unless you swap cards. A FairSIM eSIM is ready before you fly, roams on SK Telecom, and keeps your home line in the phone for bank codes.
What is an eSIM?
A SIM card built into your phone. Instead of a plastic chip, you download a profile. Every iPhone since the XS has one next to the physical SIM slot, so your home number stays put while FairSIM supplies the data.
Is my phone compatible?
FairSIM works with eSIM-compatible, carrier-unlocked iPhones: the XS, XR and everything newer, on iOS 17.4 or later for the one-tap install with no QR code. iPhones bought in mainland China do not support eSIM at all, even when unlocked. Not sure yours is unlocked? Check Settings, General, About, Carrier Lock, or ask your carrier. The full list is on the How it works page.
When should I install my eSIM?
Before you travel, while you still have Wi-Fi. Installing does not start your plan; the validity typically starts when the eSIM first connects to a network at your destination.
Do FairSIM eSIMs come with a phone number?
No. FairSIM eSIMs are data-only by design, which keeps costs low. For calls and texts, your physical SIM stays active so you keep your existing number, and WhatsApp, FaceTime and iMessage work over data.
Traveling beyond South Korea?
Get your South Korea eSIM in the app
Plans from $6.99. Install before you fly, track your data live, and top up in seconds if you need more.
Download on theApp Store
iPhone XS or later · iOS 17.4+ for one-tap install
