HelloRoam offers prepaid eSIM data plans for Korea from £2.60 a day. Your e SIM connects to local 4G/5G networks the moment you land. Activate by QR code in under two minutes, with no shop visit required. Keep your EE, Vodafone, or Three number live on dual SIM while your e-sim handles data abroad.
- Mobile networks
212+- 5G support
5G- Setup
under two minutes
Last updated
Your sim for South Korea plan with local network coverage
Cheap eSIM for South Korea, starting from £2.60. Local 4G/5G data on top carrier networks in South Korea. Works on all eSIM compatible phones. An eSIM for Korea from HelloRoam starts at £2.60 on SKTelecom and LG Uplus 5G networks. Plans cover Seoul, Busan, Jeju Island, and the countryside. Activate by QR code before your flight and land already connected. Plans deliver 4G and 5G speeds with no roaming fees. Instant delivery, no contract, and local speeds from the moment you arrive.
Korea eSIM with fast 5G coverage
HelloRoam provides eSIM plans for South Korea starting from £2.60. Connect on 5G and 4G networks via LG U+ and SKTelecom across Seoul, Busan, Jeju Island, Gyeongju, and the DMZ. Activate via QR code before your flight.
- Plans start at £2.60 with 5G speeds
- Coverage from SKTelecom and 1+ other operators
- Instant activation in under 2 minutes
- 180-day money-back guarantee
- Korea coverage across major cities
- Network
- 5G
- Plans From
- £2.60
- Activation
- Under 2 min
- Guarantee
- 180 days
How to Set Up an eSIM in Korea
Follow these steps to get your eSIM sorted on iPhone or Android before your holiday. Works for any eSIM for international travel, no replacement SIM, no shop visit.
Set up an eSIM on your iPhone for travel from the UK
Set up an eSIM on your Android for travel from the UK
- 1
Choose your plan and checkout online
Choose a data plan for your destination and complete your purchase in GBP.
2Scan the QR code
Scan the QR code to install your eSIM straight away.
- 3
Activate in minutes: ready on arrival
Your eSIM installs instantly and activates when you land.
4Manage it all from our mobile app
Track usage, top up data, and manage all your eSIMs in one place.
Holiday changed? Not to worry, your money is safe.
Plans change. With HelloRoam, you can request a full refund on any unused eSIM plan within 180 days of purchase. No questions asked if the eSIM has not been activated.
Learn more about our refund policyHelloRoam Korea eSIM vs EE, Vodafone and Three roaming
When comparing eSIM vs a travel SIM card for Korea, HelloRoam wins on price. EE charges £6/day on their Roam Abroad Pass, Vodafone charges £6.85/day on Xtra roaming, and Three Go Roam applies fair-use data caps. Skip the airport SIM kiosk and get the cheapest eSIM deal from £2.60 with instant QR activation.
| Feature comparison | HelloRoam | UK carrier roaming add-on | Budget eSIM |
|---|---|---|---|
| 180-day refund policy |  Feature available |  Feature not available | Feature not available |
| Round-the-clock live chat | Feature available |  Feature available | Feature available |
| £0 activation fees | Feature available | Feature not available | Feature available |
| Automatic data-usage alerts | Feature available | Feature not available | Feature not available |
| No data overage charges | Feature available | Feature not available | Feature not available |
| Instant QR code delivery | Feature available | Feature not available | Feature available |
| Premium Korea carrier networks | Feature available | Feature not available | Feature not available |
Is an eSIM better than a SIM card Korea for British visitors?
HelloRoam plans start at £2.60, while a South Korea SIM card from Incheon Airport kiosks carries tourist markups and queues at arrivals. Buy before your Heathrow flight and land in Seoul already sorted.
A tourist sim card Korea from a KT, SK Telecom, or LG U+ counter at Incheon requires a passport scan and in-person activation. HelloRoam activates via QR in two minutes at home. Scan and head straight to Gyeongbokgung Palace.
A prepaid SIM card Korea from HelloRoam starts at £2.60 with instant QR delivery. Purchase at any hour using a UK credit or debit card and avoid last-minute airport queues on arrival.
HelloRoam connects to SKTelecom and LG Uplus 5G networks with a SIM card for Korea covering Seoul, Busan, Jeju, and rural areas. A single carrier from an airport kiosk may not match this coverage breadth.
A prepaid SIM card South Korea from HelloRoam stays on your phone for future visits. No physical card to collect at Incheon on your next trip to Korea.
A data sim card Korea plan from HelloRoam covers 4G and 5G on Korean networks. Comparable airport packages cost more for the same data window during peak K-pop and autumn foliage season.
Based on Incheon International Airport listings. Verified May 2026.
Read the full eSIM vs SIM card comparisonWhy UK Travellers Pick HelloRoam e-sim for Korea
Round-the-clock live chat support
HelloRoam support is available 24/7 via live chat, WhatsApp, and email. A real person responds in under five minutes, whether you are setting up before a Heathrow flight or troubleshooting on holiday. That kind of round-the-clock access to mobile data help is hard to find from any other travel eSIM provider.
Best eSIM for Korea
Connect to local 4G/5G networks on local carriers the moment you land in Korea. Buy your plan, scan the QR code, and get online without paying EE, Vodafone, or Three roaming fees. A prepaid data package for your destination costs a fraction of standard carrier daily charges.
Dual SIM ready
Keep your UK mobile number active for calls and texts on your main SIM. HelloRoam runs travel data on a second eSIM line on any dual SIM compatible phone. No need to choose between your EE or Vodafone line and your holiday data. Your wireless connectivity abroad stays separate from your home plan, so there are no bill surprises when you return.
212+ carrier networks including Korea
HelloRoam eSIM connects to 212+ carrier networks across 185+ countries. Your phone picks the strongest 4G/5G signal in South Korea with no manual carrier selection needed. That breadth of network access means consistent cellular coverage whether you are in a city centre or a quieter coastal area.
Data alerts before you run out
HelloRoam sends an alert when you reach 80% of your data allowance. Top up from your account dashboard in seconds. A pay as you go eSIM with no contracts and no surprise bills on holiday. Managing your internet abroad this way keeps costs clear and predictable from start to finish.
Local network speeds in South Korea
HelloRoam eSIM connects to local 4G/5G networks in South Korea at local data prices. You get fast speeds for navigation, video calls, and streaming without paying EE or Vodafone daily roaming rates. Local network speeds through a travel eSIM are the same as what residents get, giving you a reliable connection throughout your trip.
Global and regional plans
Visiting more than one country? HelloRoam regional eSIMs cover the EU, Asia, the Americas, and 185+ destinations in a single purchase. Unlimited data plans work for longer holidays. One QR code, no border hassle. A single regional plan gives you mobile data and wireless connectivity across multiple countries without ever swapping a physical SIM card.
Hotspot and data sharing in Korea
Share your Korea eSIM data with a laptop or tablet using your phone's mobile hotspot. No extra charges and no separate setup needed. Works on all eSIM compatible phones with data sharing enabled. It is a practical way to keep a travel companion or work device running on the same prepaid data package at no added cost.
eSIM Prices for Korea
HelloRoam, the best eSIM Korea. Compare plans from 1 to 30 days and pick the right data for your trip.
| Number of days | Price |
|---|---|
| 1 day | £2.60 |
| 3 days | £7.42 |
| 7 days | £16.03 |
| 15 days | £31.23 |
| 22 days | £42.37 |
| 30 days | £53.10 |
HelloRoam vs Other eSIM Providers for Korea
HelloRoam eSIM reviews from UK travellers highlight the 180-day refund policy, no activation fees, and round-the-clock live support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers for your Korea holiday.
| Feature comparison | HelloRoam | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| 180-day refund policy | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| 24/7 live chat support | Feature available | Feature available | Feature available | Feature not available | Feature available | Feature available |
| £0 activation fees | Feature available | Feature not available | Feature available | Feature not available | Feature not available | Feature not available |
| Automatic data-usage alerts | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| No data overage charges | Feature available | Feature not available | Feature available | Feature not available | Feature not available | Feature not available |
| Instant QR code delivery | Feature available | Feature available | Feature available | Feature available | Feature available | Feature available |
| Premium Korea carrier networks | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature not available |
| Own branded carrier identity (SPN) | Feature available | Feature not available | Feature not available | Feature not available | Feature not available | Feature available |
What Is an e SIM? How eSIM Works in Korea
An eSIM card is a digital SIM built into your phone. There is no plastic chip and no SIM tray to open. Scan a QR code to activate your e SIM in under two minutes on any eSIM compatible iPhone or Android. It works as a prepaid international data plan for Korea travel with no airport SIM shop queue, no replacement SIM card, and no carrier contract. Mobile data through an eSIM connects to local in-country networks, giving you the same wireless connectivity as a resident rather than a roaming tourist. Follow the step-by-step setup guide to get connected before your flight from Heathrow, Gatwick, or any UK airport. guide
Mobile connectivity guide for South Korea
South Korea has world-class 5G and 4G LTE coverage across the entire country. LG U+ and SK Telecom cover Seoul, Busan, Incheon, Jeju Island, Gyeongju, the DMZ, and nearly all inhabited areas. South Korea consistently ranks as one of the world's fastest and most widely covered mobile markets.
Coverage is excellent even in remote mountain national parks, underground subway systems, and high-speed KTX trains. A HelloRoam eSIM connects you when you land at Incheon International Airport.
- HelloRoam connects to SKTelecom 5G, LG Uplus 5G in Korea
- 5G and 4G LTE across Seoul, Busan, Jeju, and nationwide
- Connect on LG U+ and SKTelecom networks
- Activate via QR code before your long-haul flight from the UK
eSIM Travel Tips for Korea
Install your eSIM before your flight to Seoul
Set up your HelloRoam eSIM at home before your long-haul flight. Enable data when you land at Incheon International Airport and you will be connected on the AREX Airport Express into Seoul. No SIM card vending machine needed.
T-money card for Seoul transport
The T-money card (or Cashbee) is essential for Seoul's metro, buses, and convenience stores. Your HelloRoam eSIM keeps Google Maps and the Naver Maps app (better than Google for Korean streets) working for real-time Seoul navigation.
Korea is excellent value from the UK
South Korea uses the Korean won (KRW). Current exchange rates are roughly £1 to 1,700-1,750 KRW. Seoul is great value for British visitors with outstanding street food, high-quality restaurants at low prices, and affordable accommodation.
Coverage is excellent everywhere in South Korea
South Korea's 5G and 4G networks are so comprehensive that coverage is rarely a concern. Even Hallasan summit on Jeju Island (1,950 metres), Seoul's deepest subway stations, and KTX high-speed trains have consistent signal. Download offline maps as a precaution but expect connectivity virtually everywhere.
Keep your UK SIM active for home contact
Keep your UK SIM in your second slot for incoming calls and bank SMS codes. South Korea is 9 hours ahead of the UK in summer, so family contact and bank calls may arrive at unexpected times. Your HelloRoam eSIM handles all Korean data without daily UK carrier charges.
Mobile networks in South Korea: what British travellers need to know
South Korea's three main operators are SK Telecom, KT Corporation, and LG U+. HelloRoam connects on LG U+ and SK Telecom. Both offer fast, mature 5G in Seoul and major cities and 4G LTE across almost the entire country. South Korea consistently ranks near the top of global mobile speed and coverage tables, so signal is rarely a worry.
- SKTelecom
- 5G
- LG Uplus
- 5G
HelloRoam eSIM vs UK roaming charges in South Korea
A clear comparison of data options for your South Korean trip.
| Category | HelloRoam eSIM Recommended | Korean SIM card | UK carrier roaming (EE, Three, Vodafone UK, O2) |
|---|---|---|---|
| Typical cost | From £2.16 total | £5.97–£11.19 total | £7.46–£14.91/day |
| Details | Plans start at £2.60. Buy before your long-haul flight, install via QR code at home, and land at Incheon Airport already connected on LG U+ or SKTelecom. No daily UK carrier charges. | Korean tourist SIMs are available from vending machines at Incheon Airport. They are straightforward and affordable but a HelloRoam eSIM is more convenient for modern eSIM-enabled phones. | South Korea sits outside every UK carrier's European roaming zone, so EE, Vodafone UK, O2, and Three charge daily international rates for data. Two weeks of those charges adds a chunk to your monthly bill. A HelloRoam eSIM keeps the cost fixed upfront. |
Prices approximate as of . Actual savings vary.
Best time to visit South Korea from the UK
South Korea has four distinct seasons. Spring (late March to May) is famous for cherry blossoms at 12°C to 20°C, the most popular time for British visitors. Autumn (September to November) brings stunning foliage at 12°C to 22°C and is also excellent. Summer (June to August) is hot and humid at 28°C to 35°C with a monsoon period in July. Winter (December to February) is cold and dry with temperatures dropping to minus 10°C in Seoul. Korean traditional festivals and Lunar New Year (January or February) are spectacular times to visit.
Reviewed by the HelloRoam Editorial Team
Reviewed by the HelloRoam Editorial Team
Top Destinations in Korea
Seoul
HelloRoam provides full data coverage in Seoul, South Korea. Pick a plan and connect as soon as you land.
LG U+ and SKT 5G cover all of Seoul; every Metro line and AREX airport rail line have full tunnel coverage.
Busan
Visit Busan and stay online with HelloRoam data plans that cover all of South Korea.
LG U+ and SKT offer 5G in Busan; Gimhae Airport and the KTX station both have full indoor coverage.
Daegu
Explore Daegu without losing connection. HelloRoam offers fast data across South Korea.
LG U+ and SKT 5G cover Daegu; the city's metro lines and Dongdaegu KTX station have strong signal.
Incheon
HelloRoam keeps you connected in Incheon with fast mobile data across South Korea.
LG U+ and SKT 5G cover Incheon; Incheon International Airport has 5G throughout all terminals and transit zones.
Yongsan Gu
HelloRoam supports full data coverage in Yongsan and nearby areas of South Korea.
LG U+ and SKT 5G cover Yongsan; the electronics market and I-Park Mall have excellent indoor connectivity.
Showing slide 1 of 5
Reviews
HelloRoam eSIM Reviews from UK Travellers
Real reviews from Trustpilot and the App Store, quoted as written.
40k+ travellers have used HelloRoam
Cat
On a trip to Europe, my hotel Wi-Fi was so slow and outside Wi-Fi was unreliable. I couldn’t take it anymore so I got helloroam for a few days. It was tricky to set up correctly because of the primary settings (with my original number). But I reached out to their customer service via WhatsApp. Super responsive and helpful, with specific and clear steps to troubleshoot. Appreciate having 4G roaming instead of being stuck with in and out Wi-Fi during my trip!!
Rated 5 out of 5 by this reviewer
Very good experience! The eSIM was easy to set up and worked great in London. It was much cheaper than it would have been to use my own operator there.
Ilona
Rated 5 out of 5 by this reviewer
metulker
Hard to set up but help was good
Rated 5 out of 5 by this reviewer
Reuben
Really happy with HelloRoam. Everything worked as expected, from messaging and Google Maps through to streaming without any issues. Easy to use, reliable and affordable. Would happily use them again when travelling.
Rated 5 out of 5 by this reviewer
Angeline
Reliable connection. Reasonable pricing.
Rated 4 out of 5 by this reviewer
Last updated
Common Questions About Korea eSIM
How much does a South Korea plan cost from HelloRoam?
A Korea sim from HelloRoam starts at £2.60 on SKTelecom and LG Uplus 5G networks. Plans activate by QR code before your flight so you land at Incheon already online. A 180-day money-back guarantee on unactivated eSIMs applies to every plan.
Which Korea plan covers Seoul and the rest of the country?
A travel eSIM Korea from HelloRoam activates by QR code before your flight, giving instant local data on SKTelecom and LG Uplus 5G networks from £2.60. Plans start at £2.60 on SKTelecom and LG Uplus networks. Activate by QR code at home before your Incheon-bound flight.
Does a HelloRoam Korea eSIM plan cover the Korean Rail KTX network and Jeju Island?
A HelloRoam Korea eSIM plan connects to SKTelecom and LG Uplus 5G networks across South Korea including the KTX high-speed rail corridors, Seoul, Busan, and Jeju Island. South Korea's network coverage is excellent even in rural and mountainous areas. Plans start from £2.60 and activate before your Korean Air or British Airways flight.
How does a HelloRoam South Korea eSIM plan compare to renting a pocket Wi-Fi at Incheon Airport?
A HelloRoam South Korea eSIM plan is simpler and more discreet than a rented pocket Wi-Fi device, which requires collection on arrival, charging throughout the trip, and return before departure. The eSIM connects directly to SKTelecom and LG Uplus 5G networks from £2.60 with no extra device to carry and no rental deposit to pay.
What is the best eSIM for South Korea?
HelloRoam is one of the best eSIM options for British travellers visiting South Korea, connecting on LG U+ and SKTelecom with 5G and 4G LTE across Seoul, Busan, Jeju, and nationwide. Plans start from £2.60. Install via QR code and arrive at Incheon Airport already connected.
Does a HelloRoam eSIM work in South Korea?
Yes, HelloRoam eSIM plans work throughout South Korea on LG U+ and SKTelecom. Coverage reaches almost every corner of the country, including Seoul's subway, KTX trains, and remote national parks.
Which networks does HelloRoam use in South Korea?
HelloRoam uses LG U+ and SKTelecom in South Korea. Both run world-class 5G in cities and 4G LTE almost everywhere else, covering tourist attractions, airports, and city centres. Your phone picks the stronger of the two signals automatically, so you stay connected without manual network switching.
How do I activate an eSIM for South Korea?
Activation takes about five minutes. Buy your plan on helloroam.com, scan the QR code under Settings, then Mobile Data, then Add eSIM, ideally on home Wi-Fi before you fly. When you land in South Korea, switch on mobile data and the plan connects immediately on LG U+ or SK Telecom.
How much does a HelloRoam eSIM for South Korea cost?
South Korea plans start at £2.60, among the most affordable HelloRoam offers for a major destination; bigger data allowances and longer durations cost more. Even the entry-level plan gets you onto some of the world's fastest 5G networks. Roaming with a UK carrier costs far more over a typical trip, and there are no hidden fees on your home bill.
Does HelloRoam work in Seoul and Busan?
Yes, HelloRoam works throughout Seoul and Busan on LG U+ and SKTelecom. Coverage is excellent in all districts including Gangnam, Hongdae, Myeongdong, and all of Busan's beaches and streets.
Is a HelloRoam eSIM cheaper than EE roaming in South Korea?
Yes. South Korea is outside the EU and EE charges daily international rates. A HelloRoam eSIM from £2.60 is a straightforwardly cheaper option than daily UK carrier charges.
Does HelloRoam eSIM include calls and texts in South Korea?
Calls and texts are not included; HelloRoam plans are data-only. Use KakaoTalk, the everyday messaging app in Korea, or WhatsApp over your data connection. Keep your UK SIM active to receive calls on your British number. Emergency calls work on any available network even without an active data plan.
How much data do I need for two weeks in South Korea?
Plan on 5 to 10 GB for two weeks in South Korea using Naver Maps, KakaoTalk, the Kakao T taxi app, and social media. Delivery and ride-hailing apps use data through the day, so pick a 10 GB plan if you lean on them. The HelloRoam app shows your remaining balance in real time.
Does HelloRoam work on Jeju Island?
Yes, HelloRoam works across Jeju Island on LG U+ and SKTelecom. Coverage is excellent across the whole island including Hallasan National Park trail areas and the popular coastal scenic spots.
Does HelloRoam work on the KTX high-speed train in South Korea?
Yes, HelloRoam works on KTX trains across South Korea on LG U+ and SKTelecom. Korea's rail corridors have excellent 5G coverage, so data runs at full speed on most journeys, including Seoul to Busan. Expect roughly 100 to 400 Mbps on urban 5G and 30 to 80 Mbps on 4G LTE, depending on your device and network congestion.
What to Know Before You Buy
eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before purchasing.
Most travel eSIM plans provide data only. Your existing phone number stays active for calls and texts on your primary SIM.
Coverage quality varies by location within Korea. Urban areas typically have strong 4G/5G coverage, while rural or remote areas may have limited connectivity.
Install your eSIM before departure. Activation requires an internet connection, which may not be available at your destination airport.
Transparency Notice
- Service Provider Name (SPN)
- HelloRoam appears as the carrier name on your phone's status bar through the SPN, a standardized field in the eSIM profile. Unlike most travel eSIM resellers, HelloRoam provisions its own Service Provider Name.
- Public Network Name (PNN)
- The PNN is the network name field in your eSIM profile, defined in 3GPP TS 31.102 (EF_PNN). Your phone can read it to display the name of the network you are connected to.
- Access Point Name (APN)
- HelloRoam eSIMs auto-configure their Access Point Name during installation. Your device connects to the strongest local network infrastructure without manual settings.
Prices are our retail rates across 185+ countries. Plan recommendations use real traveller feedback and network performance data. Every purchase includes a 180-day refund window if the eSIM has not been activated.
Future Syncs Limited 124 City Road, London, EC1V 2NX, UK +44 203 916 6249 help@helloroam.com Reg. No. 15950168
