Australia is huge. Does data work in outlying areas too?

Telstra, Australia's largest carrier, provides wide coverage along the coastline and major roads. In big cities such as Sydney, Melbourne, Brisbane and Perth, and at the main sights, 5G and 4G LTE work smoothly. However, coverage may be limited in extremely remote areas, such as the outback back country or deep inside Kakadu National Park. Along the main roads and tourist routes, a stable connection is available across 85% or more.

Is it OK to use Google Maps on my smartphone instead of the rental car's navigation in Australia?

Yes, that works fine. Many Korean travellers explore Australia independently by rental car, and with data connected through a Yeohaengyusim eSIM you can use Google Maps or Kakao Map in real time. Data navigation is especially useful on the coastal drive from the Gold Coast to Cairns or on the Great Ocean Road near Melbourne. Downloading offline maps in advance gives you extra peace of mind.

Will I need a power adapter in Australia?

Yes, you definitely do. Australia uses Type I outlets (two or three angled pins), which look different from Korea's Type C/F. It pays to buy a Type I adapter before your trip to Australia and pack it. It is included in most travel multi-adapters.

If I install an Australia eSIM, can I still use my Korean number for calls and texts?

Yes, you can. An eSIM does not replace your existing Korean SIM (the physical SIM); it is added alongside it. So you can still receive calls and texts to your Korean number as usual, and use the eSIM for Australian data. Note that when you call over the internet (KakaoTalk, FaceTime and so on), only data is used, which is much more economical.

Which season suits a trip to Australia?

Australia is in the southern hemisphere, so its seasons are the opposite of Korea's. December–February, winter in Korea, is summer in Australia and the best time to enjoy the beaches of Sydney and the Gold Coast. June–August, summer in Korea, is winter in Australia and suits city sightseeing in Melbourne or Sydney and trips to the outback. If you want to avoid extreme heat or the rainy season, the spring and autumn seasons of March–May and September–November are pleasant.

Does eSIM work in Australia?

Australia supports eSIM, and plans start from ₩4,505. Install it with the QR code you receive after buying, then just turn on data roaming after you arrive and you are connected straight away. There is no need to swap your SIM.

Travel eSIM or carrier roaming: which is cheaper for a trip to Australia?

For a short trip or light data use, a travel eSIM is usually cheaper. Unlimited roaming from Korean carriers costs about ₩11,000–₩15,000 a day, but with an eSIM you can buy just the days of data you need in advance. For a short trip for one or two people, an eSIM has a big advantage; for a family or very heavy data use, compare carrier unlimited roaming too.

Which carrier network does a Australia eSIM use?

In Australia it connects automatically to local carrier networks such as Telstra · Optus · Vodafone (TPG Telecom) (4G/LTE, 5G where supported). Population coverage is about 85%. It picks the network with the strongest signal automatically, so there is nothing to set up.

Can I add to or extend my Australia eSIM plan?

Yes. When you use up your data or the plan period ends, you can buy a new plan at any time. Keep using the eSIM profile you already installed; there is no need to install it again, so you carry on without interruption.

Can I use tethering (hotspot) in Australia?

Yes. In Australia you can share your eSIM data with other devices such as a laptop or tablet by tethering (hotspot). Shared data also comes out of your plan allowance, so if you tether a lot we recommend choosing a little more data.

Do I set up the eSIM before I leave or after I arrive?

We recommend installing it (registering the QR code) before you leave, while you have Wi-Fi. Data starts when you turn on data roaming after you arrive in Australia. Just remember "set up before you leave, switch on when you arrive" and you can use the internet as soon as you land.

How many GB of data do I need for a trip to Australia?

For mostly maps and messaging, we recommend about 1 GB a day; to use plenty of social media and photo uploads, about 2 GB a day. If you stream a lot of video or tether a lot, an unlimited plan is better. You can always buy more if you run short, so it is fine to choose a little extra at first.

Australia eSIM plans

Instant delivery

A travel eSIM for Australia starts from ₩4,505 and works as soon as you buy it. In Australia it connects automatically to local networks such as Telstra · Optus · Vodafone (TPG Telecom) (4G/LTE, 5G where supported), with population coverage of about 85%. Install it with the QR code before you leave and you can use the internet as soon as you land, with no roaming setup.

Sent instantly by email
30-day refund
Customer support in Korean
Credit card · Apple Pay

Australia eSIM at a glance

Price: From ₩4,505
Local networks: Telstra · Optus · Vodafone (TPG Telecom)
Network: 4G/LTE & 5G
Activation: QR code — install before you leave
Recommended data: Maps and messaging 1 GB a day · more room 2 GB a day · video: unlimited

eSIM plans you can use in Australia

Data	Validity	Price
Unlimited	1 day	₩4,505
Unlimited	3 days	₩12,039
Unlimited	5 days	₩18,820
Unlimited	7 days	₩25,601
Unlimited	10 days	₩36,148
Unlimited	15 days	₩52,723
Unlimited	30 days	₩53,477
1 GB	7 days	₩4,505
2 GB	15 days	₩9,779
3 GB	30 days	₩10,533
5 GB	30 days	₩16,560
10 GB	30 days	₩30,121
20 GB	30 days	₩49,709
50 GB	30 days	₩69,298

Endless red desert, seas coloured by coral reefs and some of the world's top cities—Australia is a bucket-list destination you will want to visit at least once. As you take a photo in front of the Sydney Opera House, snorkel on the Great Barrier Reef and relax on the beaches of the Gold Coast, you realise how important a reliable internet connection is. Australia is a vast country, so travel distances are long, and travelling without navigation and Google Maps is not easy. If you install a Yeohaengyusim eSIM before departure, everything is ready from the moment you leave Incheon Airport to right after landing at Sydney Airport. No need to queue for a local SIM: start your trip with fast data the moment you reach Australia.

Flight time from Korea

About 10–13 hours (direct flight)

Time difference

1–2 hours ahead of Korea (east, depends on daylight saving), Perth 1 hour behind

Best season to go

March–May, September–November (spring and autumn)

Plug type

Type I (adapter needed)

Why you especially need a travel eSIM for Australia

Australia is vast, with a land area about 77 times that of Korea. When you fly from Sydney to Melbourne or leave the cities to explore the outback, mobile data is not just a convenience but an essential that is directly tied to your safety. To check routes on Google Maps and handle rental car bookings and accommodation check-ins smoothly, you need a reliable internet connection. Big cities such as Sydney, Melbourne and Brisbane support even 5G, and there is good 4G LTE coverage around the main sights and coastal roads. Buying a SIM locally means long queues at airport shops and high prices, but you can buy a Yeohaengyusim eSIM in Korea in advance and install it easily with a QR code. You keep your existing Korean SIM as it is and use Australian data at the same time, so there is no worry about missing important calls or messages. While you roam freely across this vast continent, Yeohaengyusim keeps you connected without interruption.

Network coverage in Australia

Carrier

Telstra

+ Optus

Network

4G/LTE & 5G

Coverage

85%

How do I install a Australia eSIM?

1
Buy a plan
Choose a data plan for Australia and complete payment.
2
Scan the QR code
Open the email we sent and point your phone camera at its QR code.
3
Install the eSIM
Complete the eSIM installation as prompted. Doing it before you leave is simplest.
4
Connect on arrival
Once you land in Australia, switch data roaming on and you're online.

1
Buy a plan
Choose a data plan for Australia and complete payment.
2
Scan the QR code
Open the email we sent and point your phone camera at its QR code.
3
Install the eSIM
Complete the eSIM installation as prompted. Doing it before you leave is simplest.
4
Connect on arrival
Once you land in Australia, switch data roaming on and you're online.

Which plan is right for me?

Short trip

For a short 3–7 day trip, an unlimited data plan is ideal.

Business trip

We recommend a high-data plan with plenty for video calls and email.

Long stay

Staying a month or more? A large-data plan gives the best value.

Family trip

Families sharing a connection across multiple devices should pick a tethering-enabled plan with a generous data allowance.

eSIM, local SIM or pocket Wi-Fi: what suits a trip to Australia best?

	eSIM	Local SIM	Pocket Wi-Fi
Activation	Instant (QR code)	Buy locally	Pick up / delivery
Setup	2 minutes	SIM swap needed	Separate device
Price	From ₩4,505	₩10,000~50,000	₩5,000~15,000/day
Network	Local 4G/LTE	Local 4G/LTE	Local 4G/LTE
Devices	1 smartphone	1 smartphone	Up to 5
Flexibility	Top up any time	Fixed data	Daily rental
Best for	Ideal for travellers	Long stays	Families / groups

How about these destinations?

American Samoa

Fiji

Guam

Nauru

New Caledonia

New Zealand

Papua New Guinea

Samoa

Tonga

Vanuatu

China

France

See all Oceania eSIMs See all Asia eSIMs eSIM installation help See all destinations eSIM vs carrier roaming — which is cheaper?How many GB of eSIM data do I need?Best travel eSIM — how to choose

Australia eSIM FAQ

See all destinations

Browse destinations