Is the Jeju eSIM the same plan as the mainland one?

Yes. There's one national South Korea eSIM, and it covers Jeju exactly as it covers Seoul or Busan. If you fly on to the mainland afterwards, the same plan simply keeps working - no swapping or re-buying needed.

Do I need mobile data to drive around Jeju?

It helps enormously. Most visitors rent a car, and Jeju's attractions sit far apart, so live Naver Map navigation is essential. Download offline map tiles too, as a few inland and cliff-edge stretches can briefly lose signal.

Jeju eSIM.

Name: Jeju travel eSIM
Brand: My Holiday SIM

Island-wide data for Jeju's volcanic peaks, coastal drives and hidden waterfalls.

from $3.14/day · unlimited dataAll of South Korea →

Unlimited data5G where availableInstant QR by emailKeep your number

1 · How many days?

10 daysOther:days

2 · How much data?

3GBBest pricevalid 15 days$6.80$0.68/day

Cheapest plan covering your trip: 3GB, valid 15 days.

Travellers (one eSIM each)

1 × 3GB (valid 15 days) · 10-day trip$6.80

Good to know in Jeju

Jeju's inland roads and coastal cliffs have patchy spots, so download offline Naver Map tiles before a road trip and keep the Kakao T app ready - taxis are scarce outside Jeju City and Seogwipo.

Two simple ways to buy

Jeju eSIM plans: unlimited, or by the GB.

Every Jeju eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in Jeju — you can always top up or switch on your next trip.

Traveller streaming and browsing freely on an unlimited-data travel eSIM

Unlimited plans

High-speed data, nothing to count

Priced per day — the longer you stay, the better the daily rate. Ideal for streaming, hotspot and longer trips where you'd rather not watch a data meter. A fair-use policy keeps speeds fast for everyone; see each plan for the detail.

Best for streaming, video calls & hotspot
Great for longer or open-ended trips
One price per day — no GB anxiety

By-the-GB plans

3GB10GB20GB

A set bundle, brilliant value

A fixed data allowance (say 3 GB or 10 GB) valid for your travel days. The best-value pick for lighter trips built around maps, messaging and a bit of browsing. Running low? Top up in a couple of taps — nothing to reinstall.

Best value for lighter, shorter trips
Clear allowance — pay only for what you need
Top up any time from your phone

Compare plans →Not every destination has both types — the picker shows what's available where you're headed.

Plan your data

How much data do you need in Jeju?

A rough, honest guide to sizing your Jeju eSIM so you're not guessing. Most travellers in Jeju are comfortable on 3–5 GB a week — heavy streamers just go Unlimited.

Traveller checking maps and messages on her phone using a My Holiday SIM eSIM

Not sure? Start with a 5 GB plan — you can top up in seconds if you run low.

Light

~1 GB / week

Maps, messaging & email

Google Maps, WhatsApp, email and the odd search. Plenty for a city break where you mostly need directions.

Suits 1–3 GB plans

Balanced

3–5 GB / week

Everyday holiday use

Everything above plus social scrolling, music, cloud photo backups and a little video. Where most travellers land.

Suits 5–10 GB plans

Jeju eSIM: your local data guide.

Jeju is a road-trip island where the best spots sit far apart, from Seongsan Ilchulbong's sunrise crater to the lava tubes at Manjanggul. A Jeju eSIM keeps your rental-car navigation and bus timetables live as you cross the island, book a Kakao T taxi in Seogwipo, or check the ferry to Udo without any reception gaps.

One eSIM for Jeju and all of South Korea. It's the national South Korea eSIM — from $3.14/day with unlimited data, working the same in Jeju as it does the moment you leave it.

Landing at Jeju International Airport (CJU)?

Install the QR at home, then switch the eSIM on as you taxi in — you're online before you reach the arrivals hall.

Jeju eSIM pricingbest-value plan · per day

Days

Per day

Total

Saving

3 days1GB

$1.46

$4.39

—

5 days1GB

$0.88

$4.39

−40%

7 days1GB

$0.63

$4.39

−57%

10 days3GBPopular

$0.68

$6.80

−53%

15 days3GB

$0.45

$6.80

−69%

30 days5GB

$0.37

$10.97

−75%

Each trip length shows the best-value plan that covers it. Total always shown before you pay.

eSIM vs the old ways in Jeju

eSIM

ROAMING

AIRPORT SIM

Data allowance

Unlimited

Usually capped

Rarely unlimited

Price known upfront

Prepaid

Billed after

Varies at the desk

Ready when you land

Instantly

After the queue

Keep WhatsApp number

SIM swapped

Jeju eSIM from $3.14/day — the whole bill, agreed before you fly.

On the ground

Where you'll lean on data in Jeju.

Seongsan Ilchulbong

Check sunrise times and the live weather before the crater-rim climb, then upload the view straight away.

Hallasan National Park

Reserve a trail permit and track the shuttle bus with data before you start the long summit hike.

Seogwipo

Book a Kakao T taxi between Cheonjiyeon Waterfall and the Jungmun resorts without waiting for Wi-Fi.

Udo Island

Check ferry timetables from Seongsan and rent an electric scooter on arrival using live data.

The practical bit

Getting around Jeju on your eSIM.

Apps you'll want online in Jeju

Kakao T— Book taxis in Jeju City and Seogwipo, where cabs are scarce elsewhere.
Naver Map— Essential for rental-car navigation and offline map tiles across the island's spread-out sights.
KakaoMap— Alternative navigation with Jeju bus routes, timetables and detailed points of interest.
Papago— Translate local Jeju dishes and market signs while you explore the island.

How long to stay in Jeju

Three to four days lets you circle Jeju by rental car, taking in the sunrise peak, Hallasan, the waterfalls and a ferry over to Udo.

How much data for Jeju

Because Jeju is car-based with constant navigation, lean toward a generous 5 GB or Unlimited - live Naver Map routing, offline downloads and photo uploads across the island add up quickly.

Coverage in Jeju

Jeju City, Seogwipo and the coastal ring road have solid 5G, but coverage genuinely thins on Hallasan's upper slopes, inside lava tubes like Manjanggul, and along a few remote inland roads.

Where you're headed

Discover Jeju.

Jeju, South Korea — skyline and landmarks · stay connected with a Jeju eSIM from My Holiday SIM

Jeju, South Korea — streets and everyday scenes · stay connected with a Jeju eSIM from My Holiday SIM

Jeju, South Korea — sights worth exploring · stay connected with a Jeju eSIM from My Holiday SIM

Jeju, South Korea — a travel moment · stay connected with a Jeju eSIM from My Holiday SIM

How to activate your Jeju eSIM.

Full installation guide →

A traveller happily planning her next trip with a map and phone

Buy your plan

Choose your days — the QR code arrives by email in seconds.

A traveller installing her eSIM from the sofa in two minutes

Install at home

Scan the QR on Wi-Fi before you fly. About two minutes, no app needed.

Friends laughing together while packing for a holiday

Fly relaxed

Nothing counts down yet — your days start only at first connection.

A joyful family reunion at the airport arrivals hall

Switch on in Jeju

Turn the line on when you land. Connected before baggage claim.

New to eSIM in Jeju?

What is a Jeju eSIM?

A Jeju eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local Jeju data plan installs alongside your home SIM — no plastic, no tray tool, no swap. Your number and WhatsApp stay exactly where they are.

✓ 2-minute install✓ Keep your number✓ Works on phones from 2018+

How eSIM works →Check my phone

A traveller with a backpack smiling at her phone — online abroad with My Holiday SIM

Connected · 5G

Home SIM · calls & WhatsAppHoliday eSIM · unlimited data

30-day refund promiseUnused, uninstalled eSIM? Full refund, no questions.

The price is the billPrepaid and final — roaming charges can't happen.

Days start when you landInstall early with zero pressure; counting begins at first connection.

Humans, 24/7Real people answer, before, during and after the trip.

Peace of mind

Your Jeju eSIM: data-only, zero bill shock.

Your Jeju eSIM handles the internet while you travel. Your home number stays exactly where it is — no surprise roaming charges in Jeju, no swapping your real SIM out.

Keep your number & WhatsApp

The eSIM is data-only and runs alongside your home SIM. Your number, iMessage and WhatsApp keep working exactly as they do at home.

No roaming bills, ever

Turn data roaming OFF on your home SIM and ON for the eSIM. You pay once, up front — no overage, no metered surprises, no bill waiting when you land home.

One thing worth knowing

Because it's data-only, the eSIM can't receive bank verification (OTP) text codes — those still go to your home number. Keep it reachable on Wi-Fi calling, or use app-based codes.

Traveller relaxed and connected on her phone, no roaming bill to worry about

Why travellers choose My Holiday SIM for Jeju.

Instant eSIM deliveryQR code in your inbox seconds after checkout — even at the departure gate.

No physical SIMNothing to collect, lose or poke out with a paperclip. Your home SIM stays put.

Keep your WhatsApp numberData flows through us; WhatsApp stays on your home number. Family always reaches you.

A traveller at the departure gate, eSIM ready on her phone

eSIM ready in ~2 minutes

No bill shock, everOne clear price before you fly. Roaming charges simply can't happen.

Secure paymentsCards, Apple Pay, Google Pay, PayPal and Klarna — encrypted end to end.

Real human supportReal people — before, during and after your trip. Live chat and email, no bots. Easy top-ups too.

Coverage in South Korea.

5G where available, fast 4G everywhere else

Connected · 5G

Your eSIM joins South Korea's partner networks automatically — no settings to choose, no manual network hunting. If signal drops in a remote spot, toggling Airplane Mode for a few seconds forces a fresh connection.

SK Telecom
KT
LG U+

Popular places covered

SeoulBusanJejuIncheonGyeongjuJeonjuDaeguSokcho

Keep data roaming ON for the eSIM line only — that's the switch travel eSIMs use, and it never adds charges on our plans.

Trusted networks, honest numbers.

No invented star ratings behind your Jeju eSIM — just the numbers we actually stand behind.

Friendly globe with location pins — coverage on every continent

My Holiday SIMSTAY CONNECTED. ANYWHERE.

200+

destinations — every continent covered

regions covered by a single regional eSIM

~2 min

typical install — QR to connected

Live

chat & email support

Before you fly

Jeju eSIM questions, answered.

Coverage is strong across Jeju City, Seogwipo, the coastal road and most tourist sights. It thins on Hallasan's upper trails and in a few lava caves, so download offline maps before summit hikes or the Manjanggul visit.

Your Jeju eSIM glossary.

eSIMA SIM built into your phone's hardware. Plans install onto it digitally — no plastic card involved.

QR profileThe code we email you. Scanning it downloads your holiday plan onto the eSIM. One scan per device.

Data roaming (the switch)The toggle travel eSIMs use to join partner networks abroad. On our plans it never adds charges — keep it ON for the eSIM, OFF for your home SIM.

Hotspot / tetheringSharing your phone's data with laptops and tablets. Included on our plans wherever networks allow.

Top-upExtra days added to a live plan from your account. They append to the end — nothing overlaps.

First connectionThe moment your eSIM first joins a network at the destination — that's when your days start counting, not before.

Travelling wider in South Korea?