eSIM for Australia

Viasimo's Australia eSIM starts at $1.29 for 500 MB over 7 days, running on Optus with 5G where available. Plans last 1 to 180 days, arrive by email in minutes and install from your phone's settings, with no app.

Works everywhere in Australia

Australian Capital Territory
Brisbane
Great Barrier Reef
Melbourne
New South Wales
Northern Territory
Perth

Select your planIn stock

Duration

Quantity

Unlimited data · 3 Days$9.00

Unlimited data · 3 Days ×1

$9.00

Going to more than one country? See regional plans

Does my phone take an eSIM? Check now

Dial *#06# on your phone. If you see an EID number, your phone takes an eSIM. Most phones sold since 2019 do.

Not sure it works on your phone? Check compatibility

Network

Which networks does the Australia eSIM use?

Host networks: Optus

Your eSIM picks one automatically; you do not choose or switch between them.

Data: 100 MB – 50 GB or unlimited
Validity: 1–180 days
Speed: 4G LTE / 5G
Hotspot / tethering: Supported on most devices
Activation: Automatic on arrival
Speed management: Roughly 2-3 GB per day at full speed, sometimes less depending on the local carrier, then reduced
Top-ups: Add more data from your account, before the plan expires
Text messages (SMS): Data only: use an app for verification codes
Connects via: Singapore
Unused validity: 180 days before it must be installed

Setting up Buy, scan the QR code we email you, and switch on the travel line when you land. How it works

Choosing a plan

How much data do you need?

The allowances below are our sizing recommendations, not measurements. The plan beside each one is the cheapest option on this page that covers it.

Recommended data allowances matched to the plans sold for this destination
You are	Plan for	Cheapest plan that covers it
LightMaps, messaging and the occasional lookup	About 1 GB a week	$1.791 GB, 7 days
TypicalMaps, social, photos and some browsing	About 3 to 7 GB a week	$5.005 GB, 30 days
HeavyVideo streaming, video calls and uploads	10 GB a week or more	$9.0010 GB, 30 days
Working or sharingTethering a laptop, calls and cloud sync	20 GB a week or more	$14.9920 GB, 30 days

Work it out from your own habits

What a week abroad costs

eSIM, local SIM or roaming?

Charged per day

Your carrier roaming

Queue and plastic

A SIM at the airport

$1.29

Viasimo, one bundle

Only the Viasimo figure is a price: it comes from today’s live catalog. The other two rows are directional, not quoted rates.

About this eSIM

Australia is a continent with the population of a mid-sized country, and almost all of that population lives on a crescent of coast. Mobile networks were built to that shape, which means city and coastal data is fast and dependable while the interior is genuinely, seriously empty of signal. An eSIM covers the part of the country where you will spend most of your time. For the rest, the answer is preparation rather than a better plan.

Getting online when you land

Long-haul arrivals come through Sydney Kingsford Smith, Melbourne Tullamarine, Brisbane and Perth, with Adelaide, Cairns and Darwin taking a share. Install the profile before you leave home so that a twenty-something-hour flight ends with you turning on a line rather than troubleshooting one.

Switch the travel line on with data roaming enabled once you have landed. Registration is quick at any Australian airport. Do it before you clear customs if you can, because the first thing most people want is to tell someone at home they survived the flight, and the second is to work out which train or rideshare gets them into the city.

Leave your home SIM in the phone with its data disabled. Your usual number keeps receiving messages, and given you are likely to be twelve or more hours out of step with home, having that number quietly reachable is worth something.

The networks you'll be on

Optus carries visiting eSIM traffic here, running 4G LTE and 5G where it has been rolled out. Your handset moves between 5G and 4G as the signal changes.

In Sydney, Melbourne, Brisbane and Perth, expect the connection to be quick and unremarkable, with 5G available in the denser urban areas through Optus. Suburbs, regional cities and the main coastal highways sit comfortably on 4G. What changes as you head inland is not the technology but the spacing: towers cluster around towns and highways, and the distance between clusters gets very large very fast.

Where coverage holds, and where it thins

The east coast from Cairns down through Brisbane, Byron, Newcastle, Sydney and along to Melbourne is well covered, as is the run to Adelaide and the populated southwest around Perth. Tasmania is fine around Hobart, Launceston and the main touring routes, and the Great Ocean Road, the Hunter, the Barossa and the Sunshine and Gold Coasts all behave normally. Most national parks within a couple of hours of a capital will hold a signal at the visitor centre and lose it on the trails.

Beyond that crescent, plan for nothing. The Stuart Highway between Adelaide and Darwin, the Eyre Highway across the Nullarbor, the Gibb River Road, Cape York, the Simpson and the Tanami are all long stretches where a phone is a camera. Roadhouses and small towns are islands of service, sometimes hours apart. The area around Uluru has coverage at the resort and the airport, and the drive in from either direction largely does not.

On the water it is much the same. Boats to the Great Barrier Reef hold a signal for a while off Cairns or Port Douglas and lose it as the pontoons get further out. In Tasmania, the west coast, the Overland Track and Cradle Mountain's back country are all offline. None of this is a defect. Nobody has built a tower for the four people crossing the Nullarbor today.

If your trip genuinely goes remote, hire a satellite messenger or a UHF radio and tell someone your route. That is the standard here and it is not an overreaction.

What you'll actually use data for here

Distance drives most of it. Navigation runs constantly on a road trip, fuel stop planning matters when roadhouses are hundreds of kilometres apart, and you will check road conditions and closures more often than you expect, particularly in the north during the wet season.

Safety information is the other genuinely important category. Bushfire warnings, flood alerts, surf and rip conditions, UV levels and heat advisories are all published and all worth having on your phone. The Australian sun and the Australian coast both cause more trouble for visitors than anything else in the country.

Everyday use is easy: contactless payment is close to universal, public transport in the big cities runs on stored-value cards or phone payment, parking is frequently app-based, and rideshare is everywhere urban. Restaurant bookings, national park permits and campsite reservations all happen online, and some of the popular ones need booking well ahead.

Before you fly

Download offline maps for every region you plan to drive through, not just the destinations. The gap between towns is exactly where you will want a map and exactly where you cannot fetch one.

Save your accommodation and hire car details on the device, along with emergency numbers. Note that Australia uses a different emergency number to most of Europe and North America, so look it up rather than assuming.

Pack a car charger and a power bank. Navigation plus a hot dashboard drains a phone quickly, and heat is hard on batteries. Check your handset is unlocked and eSIM capable, install the profile at home, and confirm it appears in your line settings before the flight.

Unlimited runs at full speed up to a fair-use limit, then continues slower.

Before you buy

Important to know

This is a data-only eSIM. It carries no calls or SMS on its own number.
Your existing number stays on your primary SIM, so calls and verification texts keep working.
Your phone must support eSIM, and some carrier-locked phones cannot install one.
Signal varies with location, terrain, congestion and your handset. Dense urban areas are consistently better served than remote ones.
5G only works where the host network has deployed it and your phone supports it. Everywhere else it falls back to 4G LTE.
The eSIM selects a host network automatically. You cannot pick or switch between them.
Unlimited plans run at full speed up to a fair-use limit, then continue at a reduced speed. Read the fair usage policy

Looking for more information?

Frequently asked questions

Does an eSIM work in Australia?

Yes. Your Australia eSIM connects automatically the moment you arrive, with no roaming fees and nothing to set up at the airport. The host networks it can use are Optus. Coverage runs on 4G LTE and 5G where the network has rolled it out, and falls back to 4G elsewhere.

Do I get 5G in Australia?

Yes, where it has been deployed. 5G runs on Optus in Australia, and your eSIM uses it automatically on a 5G-capable phone, dropping back to 4G LTE outside covered areas. No country is covered everywhere, so 5G availability varies by location.

Will my overseas phone be blocked in Australia after the 3G shutdown?

Possibly, if it is an older or unusual model. Since 28 October 2024, Australian carriers have been required to block devices that cannot make a 4G VoLTE emergency call to 000. Most recent mainstream smartphones are fine. Some handsets sold only overseas have been affected, so check your model with the manufacturer or an IMEI checker before you travel.

Is Optus or Telstra better for travelling around Australia?

It depends on where you go. Opensignal's May 2026 report found Optus fastest on download and 5G download speed, while Telstra won Coverage Experience by a clear margin. In the cities and along the main coast, Optus does well. In remote country towns and on outback highways, Telstra sometimes has towers where Optus does not.

Can I call 112 in Australia instead of 000?

Yes, from a mobile. 000 is the main emergency number and works from any phone. 112 also connects to emergency services from a mobile and does not need a SIM or PIN, but there must be coverage from at least one network where you are. Don't make a test call to check either number.

Is Ola still available in Australia?

No. Ola closed its Australian ride-hailing business in April 2024. Uber is the largest app and DiDi is the main alternative in the big cities. Both serve the major airports from signed rideshare pick-up areas. In smaller towns, rideshare drivers can be scarce, especially late at night, so book a local taxi ahead.

How much data do I need for 7 days in Australia?

For 7 days in Australia, Viasimo sells 100 MB for $1.29, 500 MB for $1.29, 1 GB for $1.79, and unlimited data for $18.99. Our sizing recommendation, not a measurement: maps, messaging and the occasional lookup, about 1 GB a week; maps, social, photos and some browsing, about 3 to 7 GB a week. The data calculator on this site works it out from how you actually use your phone.

Installing, keeping your number, topping up and hotspot work the same everywhere: see how it works →

Know before you go

Australia: what to know before you land

In Australia your eSIM runs on Optus, which won Opensignal's download speed and 5G download speed awards in May 2026, while Telstra still has the widest coverage footprint. Australia's 3G networks are now switched off, so check your phone supports 4G voice for emergency calls before you go.

Emergency: 000 112 from mobiles
Plugs: I 230V
Currency: Australian dollar (AUD)

Main airports

SYD Sydney Kingsford Smith Airport
MEL Melbourne Airport (Tullamarine)
BNE Brisbane Airport
PER Perth Airport

Apps worth having UberDiDiEmergency+WhatsAppGoogle Maps

Optus versus Telstra in the May 2026 Opensignal results

Australia has three mobile networks: Telstra, Optus and the TPG network that carries the Vodafone brand. Your eSIM uses Optus, so it is worth knowing where that network is strong and where it isn't.

In Opensignal's May 2026 report on Australia, Optus won both the overall download speed award and the 5G download speed award. It shared the reliability award with Vodafone. Telstra won Coverage Experience, scoring 9.6 out of 10 against 8.5 for Optus. Vodafone won 5G availability, the share of time users spent connected to 5G.

In practice, Optus is quick in the capitals and larger regional centres. The coverage gap shows up in smaller country towns and on remote highways, where Telstra is sometimes the only network with a tower. If a rural stop shows no service for you, a local on Telstra may still have signal. That says nothing about your phone; it is just the way the networks were built out. For an outback or Kimberley trip, ask your hire company or campsite which network works locally, and bring a satellite messenger for the long stretches between towns.

Life after the 3G switch-off: VoLTE and Triple Zero

All three Australian networks have now closed 3G, with Telstra and Optus switching theirs off in 2024, so voice calls now run over 4G using VoLTE. Since 28 October 2024 the carriers have also had to block handsets that cannot make a 4G emergency call to 000. That applies to existing devices as well as new ones, and it has caught some older models and handsets sold only outside Australia.

This matters even though your eSIM is data only. Your emergency calls go out through whatever voice service your phone has, so a model that cannot make a VoLTE emergency call in Australia is a real safety problem. If you are travelling with an unusual import, an old handset or a 3G-era smartwatch, check the model before you fly.

The Australian government advises against test calls to 000. Look up your model or IMEI (dial *#06# to find it) with the manufacturer or an Australian IMEI checker instead.

Calling 000 or 112 and the Emergency+ app

Australia's emergency number is 000 (Triple Zero) for police, fire and ambulance, and you can dial it from any phone. From a mobile, 112 also works. According to the federal infrastructure department, a 112 call needs no SIM or PIN, but at least one network must have coverage where you are. That is useful in places where Optus has no tower but Telstra does.

Many Australians keep the Emergency+ app on their phones. It shows your GPS coordinates and the nearest street address on screen so you can read them out to the operator, which helps a lot on a bush track or an unmarked beach. It also lists the non-emergency police number and the State Emergency Service number for flood and storm help. Install it while you are still on Wi-Fi.

State fire and flood warnings come through separate apps and websites, such as Hazards Near Me in New South Wales and VicEmergency in Victoria. Install the one for the state you will spend most of your time in.

Uber, DiDi and paying your way in Sydney and Melbourne

Ride-hailing in Australia has narrowed. Ola quit the Australian market in April 2024, leaving Uber as the dominant app and DiDi as the main alternative in the big cities. Both work at the major international airports: Sydney (SYD), Melbourne (MEL), Brisbane (BNE) and Perth (PER). Each airport has signed rideshare pick-up zones, often a short walk from arrivals, so have data on before you clear the terminal to see your driver's location and the zone.

Australia is close to cashless in the cities. Tap-to-pay with a card or phone works almost everywhere, including in many taxis. Mobile data helps most with the things that are now app-only: council parking meters that need an app, café and pub QR-code ordering, and national park entry passes bought online before you arrive at the gate. Have your banking app's verification set up to work over data. One-time codes sent by SMS still reach your home SIM, so leave that line switched on.

Researched October 2026 · 5 sources

insights.opensignal.com Australia, May 2026, Mobile Network Experience Report - Opensignal
infrastructure.gov.au Emergency calls - Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts
letsbemates.com.au Device blocking - 3G network exit - Mate
aldimobile.com.au New rules require blocking of phones that can't make emergency service calls - ALDI Mobile
news.uq.edu.au Ola has left Australia. What does it mean for the future of ridesharing in Australia? - University of Queensland

7-day itinerary

Seven days in Australia: Sydney, the Blue Mountains, the Great Barrier Reef and the Daintree

A realistic first week that does not try to cover the whole continent: three days in and around Sydney, then one domestic flight north to Cairns for the reef, Kuranda and the Daintree rainforest. Suits first-time visitors who want city, coast and nature.

Length: 7 days
Bases: 2

When to go May to October is the dry season in tropical north Queensland and mild in Sydney; November to May brings the stinger season and summer storms in the north, and December–January is peak holiday time in Sydney.

Day 1 Sydney

Sydney: Circular Quay, the Opera House and The Rocks

Sydney airport to the city is about 15 minutes on the Airport Link train.

Start at Circular Quay and walk round to the Sydney Opera House, taking a guided tour if you want to see inside. Follow the harbour path into the Royal Botanic Garden and out to Mrs Macquarie's Chair for the view of the Opera House and Harbour Bridge together. In the afternoon wander the lanes of The Rocks and walk across the Harbour Bridge on the pedestrian path to Milsons Point.

Signal Central Sydney has dense Optus 5G; you will also keep signal on the Airport Link and most underground stations.
Day 2 Sydney

Manly ferry and the Bondi to Coogee walk

The Manly ferry takes about 30 minutes; Bondi is around 30 minutes from the CBD by train to Bondi Junction and bus.

Take the ferry from Circular Quay to Manly for the harbour views, then walk the Corso to the beach and along to Shelly Beach. Back in the city, head to Bondi Beach in the afternoon and follow the Bondi to Coogee coastal walk, about 6 km of clifftop path past Tamarama, Bronte and Waverley Cemetery, finishing with a swim at Coogee.

Signal Strong 4G and 5G on the harbour ferry and along the eastern beaches; only short dips in the sheltered coves below the cliffs.
Day 3 Sydney

Blue Mountains day trip

About 2 hours each way by train from Sydney Central to Katoomba on the Blue Mountains Line.

Catch an early train to Katoomba and walk to Echo Point for the Three Sisters, then down the Giant Stairway or along the cliff path towards Leura. At Scenic World ride the steep Scenic Railway into the Jamison Valley and walk the rainforest boardwalk before taking the Cableway back up. If time allows, stop at Wentworth Falls on the way back for the lookout and the start of the falls tracks.

Signal Katoomba, Leura and the lookouts have 4G; once you drop into the valleys and gorges on the walking tracks, signal disappears quickly, so carry an offline map and tell someone your route.
Day 4 Cairns

Fly to Cairns and the Esplanade

Domestic flight from Sydney to Cairns, about 3 hours.

Take a morning domestic flight to Cairns. After checking in, walk the Cairns Esplanade boardwalk past the mudflats, where you may see wading birds, and swim at the Esplanade Lagoon, the free saltwater pool that locals use because the sea here is not suitable for swimming. Spend the evening at the night markets and book tomorrow's reef trip if you have not already.

Signal Cairns city has good Optus 4G with 5G in the centre; airports and the Esplanade are well covered.
Day 5 Cairns

The Great Barrier Reef

Outer reef boats take about 1.5–2 hours each way; Green Island is about 45 minutes.

Join a full-day trip from the Reef Fleet Terminal to an outer reef platform or snorkel site such as Moore, Norman or Hastings Reef, where you can snorkel or try an introductory dive. If you prefer a shorter boat ride, Green Island or Fitzroy Island offer reef snorkelling from the beach, glass-bottom boats and rainforest walks. Wear a stinger suit if you are there between November and May.

Signal You will lose signal soon after leaving Cairns and there is usually none at the outer reef; Green and Fitzroy islands may have weak coverage. Treat it as a day offline.
Day 6 Cairns

Kuranda by Skyrail and the Scenic Railway

Skyrail takes about 1.5 hours with stops; the train back to Freshwater or Cairns takes about 2 hours.

Ride the Skyrail Rainforest Cableway up over the Barron Gorge National Park canopy, stopping at Red Peak and Barron Falls stations on the way. Spend a few hours in Kuranda village, with its markets and the river walk, then return on the Kuranda Scenic Railway, which winds down past Barron Falls and Stoney Creek Falls on a line cut through the range in the 1880s.

Signal Kuranda village has 4G; the Skyrail stations are mostly covered, but the railway loses signal in tunnels and deep sections of the gorge.
Day 7 Cairns

Mossman Gorge and Cape Tribulation

Cairns to Cape Tribulation is about 2.5–3 hours by car each way, including the Daintree River ferry.

Drive north up the Captain Cook Highway past Port Douglas to Mossman Gorge, where the Indigenous-run centre runs a shuttle and guided Dreamtime walks. Cross the Daintree River on the cable ferry and continue to Cape Tribulation, walking the Dubuji and Madja boardwalks through the rainforest to the mangroves and the beach where the forest meets the reef. Do not swim: estuarine crocodiles live here. Return to Cairns for an evening flight or one more night.

Signal Port Douglas and Mossman have 4G, but north of the Daintree River coverage is very limited, especially on Optus; plan on being offline at Cape Tribulation and keep 000 or 112 for emergencies.

Staying connected on this route

Download offline maps of the Blue Mountains walking tracks and the Daintree before you leave the city; both lose signal fast.
The reef day is effectively offline: send your messages before you board at the Reef Fleet Terminal.
Install the Emergency+ app, which shows your GPS position to read out on a 000 call from a bush track or beach.
Check your phone supports 4G VoLTE emergency calling before you arrive, since Australia's 3G networks have closed.

Itinerary sources · 3

en.wikivoyage.org Wikivoyage: Katoomba
en.wikivoyage.org Wikivoyage: Cape Tribulation
australia.com Tourism Australia: guide to the Great Barrier Reef

Where this comes from

Information and verification

Each block below says what was checked and when. Anything we cannot date, we do not claim.

Prices and plans: Every price and allowance on this page is read from the live catalog, not typed in.; Verified October 30, 2026
Host networks: The operator list comes from the network partner that carries this eSIM.; Verified October 30, 2026