Will the same eSIM cover a day trip to Gyeongju or Tongyeong?

Yes. Because it's one national South Korea plan, the same Busan eSIM keeps working on the KTX to Gyeongju, along the coast to Tongyeong, and anywhere else in the country, so day trips need no extra SIM.

Which network will I connect to in Busan?

Your eSIM roams onto one of Korea's major carriers - SK Telecom, KT or LG U+ - all of which give excellent city-wide coverage in Busan. You don't choose manually; the eSIM connects to the best available signal automatically.

Busan eSIM.

Name: Busan travel eSIM
Brand: My Holiday SIM

Stay online across Busan's beaches, seafood markets and colourful hillside villages.

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 Busan

Buy a Cashbee or T-money card from any Busan Metro machine and top it up for buses, the metro and even the ferry - your eSIM handles maps while the card handles fares.

Two simple ways to buy

Busan eSIM plans: unlimited, or by the GB.

Every Busan eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in Busan — 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 Busan?

A rough, honest guide to sizing your Busan eSIM so you're not guessing. Most travellers in Busan 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

Busan eSIM: your local data guide.

Busan sprawls along the coast, so you'll be hopping between beaches, hillside villages and fish markets all day. A Busan eSIM means live maps as you ride the metro from Seomyeon to Haeundae, translate a menu at Jagalchi Fish Market, and photograph the painted lanes of Gamcheon Culture Village without hunting for cafe Wi-Fi.

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

Landing at Gimhae International Airport (PUS)?

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

Busan 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 Busan

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

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

On the ground

Where you'll lean on data in Busan.

Haeundae Beach

Check tide times, book beach cabanas and find seafood restaurants along the promenade on fast data.

Gamcheon Culture Village

Follow the painted-village trail map and photo spots without losing signal on the steep, winding stairways.

Jagalchi Fish Market

Use Papago to translate the day's catch and settle prices at the stalls with data in hand.

Gwangalli Beach

Stream the Gwangan Bridge light show and hail a late taxi home along the cafe-lined seafront.

The practical bit

Getting around Busan on your eSIM.

Apps you'll want online in Busan

Kakao T— Hail taxis and airport rides across Busan, from Haeundae to Gimhae Airport.
Naver Map— Navigate Busan's metro, buses and steep coastal streets with accurate, English-friendly directions.
Busan Metro— Official app for the city's subway map, timetables and fares across all lines.
Papago— Instantly translate seafood-menu items and stall signs at Jagalchi and Gukje markets.

How long to stay in Busan

Two to three days suits Busan, covering Haeundae and Gwangalli beaches, Gamcheon Culture Village, Jagalchi Market and a temple or two, often as a stop on a wider Korea trip.

How much data for Busan

A balanced 3-5 GB handles maps, seafood-menu translation and beach photos across a Busan city break; choose Unlimited if you like streaming the bridge light show or video-calling home.

Coverage in Busan

Busan enjoys strong 5G across the beaches, metro and downtown. Coverage is reliable even on the ferries and up Taejongdae, thinning only slightly in the tightest lanes of Gamcheon's hillside village.

Where you're headed

Discover Busan.

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

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

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

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

How to activate your Busan 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 Busan

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

New to eSIM in Busan?

What is a Busan eSIM?

A Busan eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local Busan 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 Busan eSIM: data-only, zero bill shock.

Your Busan eSIM handles the internet while you travel. Your home number stays exactly where it is — no surprise roaming charges in Busan, 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 Busan.

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 Busan 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

Busan eSIM questions, answered.

Yes. Haeundae, Gwangalli and the seafront promenades have strong 5G, so you can stream the Gwangan Bridge light show or share beach photos easily. Signal only dips a little inside Gamcheon's tightest hillside alleys.

Your Busan 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?