eSIM Australia
Australia eSIM from 1,95€ on the Optus networks: 1 GB to unlimited, prepaid, no contract and no registration — set it up before you fly and you are online as you land in Sydney.
Fair Use Policy
2GB highspeed/day, then unlimited at 1Mbps
Your Selection
Your plan only starts counting when the eSIM first connects at your destination — so you can buy today and travel in three weeks.
How does Simbye eSIM work for Australia?
Get connected in under 2 minutes
Buy and set up before you fly
The link and the QR code arrive by email straight away. Set the eSIM up at home on wifi – one tap on the link is enough, otherwise scan the QR code. After that it sits in your phone as a second line and sleeps. The validity only starts when it first connects in Australia, so you can buy weeks ahead.
Switch it on after you land
Whether you arrive at Sydney Kingsford Smith, Melbourne Tullamarine, Brisbane, Perth, Adelaide, Gold Coast, Cairns or Darwin: turn off airplane mode, pick the Simbye line for mobile data in your settings, and switch data roaming on for that line. After a minute or two, Optus appears at the top of the screen. There is no APN to type in.
Top up on the road
When the data runs out you can top up online at any time – no reinstalling, and nothing changes in your settings. Before an outback leg it pays to download maps and campsite data while you still have a signal.
Check Device Compatibility
Make sure your device supports eSIM before purchasing
Which networks will you be on in Australia?
Your Australia eSIM runs on the Optus network.
Optus
Source: nPerf averages, 01.01.2025 – 31.12.2025.
There is nothing to configure. After you land, your phone connects to the Optus network automatically. Usually the line is already connected while the plane is still rolling to the terminal at Sydney Kingsford Smith or Melbourne Tullamarine. If nothing works at all in one spot, that's local Optus coverage, not a setting to fix. The one thing that matters: data roaming has to be switched on for the Simbye line, otherwise it stays silent. You never type in an APN.
In the cities and along the populated coast, coverage is solid: Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, Hobart, Darwin, Cairns and the Gold Coast, plus the Blue Mountains, Byron Bay, the Whitsundays and the Great Ocean Road. The further inland you go, the bigger the gaps get – on the Stuart Highway, across the Nullarbor or on the Gibb River Road there can be hours of driving between two places with a signal. That is not an eSIM quirk, that is Australia: the networks follow cities, highways and towns, not the map.
eSIM or a local SIM card in Australia?
Speed decides it in Australia: the eSIM is live as you step off the plane and skips the legally required identity check, while a local card means a counter, your passport and picking just one carrier.
Why roaming on your home plan gets expensive in Australia
Australia sits at the expensive end of almost every home tariff, wherever you fly in from. Most contracts either bill the data per megabyte or sell you a day pass that you pay for on every single day of the trip, and over a three-week round trip that is the line on the bill nobody enjoys reading. A prepaid eSIM works the other way round: you choose the data before you fly, from 1 GB up to unlimited and 7 to 180 days, and nothing is billed afterwards.
Then there is the timing. After twenty to twenty-four hours in the air you land in Sydney or Melbourne in the morning, and you want to book the transfer, open the address of your accommodation and send a quick message home. That is exactly the moment you do not want to be dealing with a SIM card. You set the eSIM up calmly at home, it sleeps in your phone, and it wakes up when the plane touches down.
An honest caveat: if you are coming for a working holiday year, an Australian card with its own number becomes the better tool at some point, because employers, landlords and banks want to see a +61 number. For a holiday, a road trip, a family visit or a business trip of a few weeks, data only is enough – and you skip the ID check. One more thing people overlook: the stopover in Singapore, Dubai, Doha or Bangkok is not included. These eSIM plans for Australia cover Australia.
How far the Optus network actually reaches
Australian mobile coverage follows people, not the map. Along the east coast from Cairns through Brisbane, the Gold Coast, Sydney and Melbourne down to Adelaide, plus Perth, Canberra, Hobart and Darwin, coverage is dense and you get 4G and often 5G. The classic holiday regions are covered too: the Blue Mountains, the Hunter Valley, Byron Bay, the Whitsundays with Airlie Beach, the Great Ocean Road, the Barossa Valley and Margaret River.
Between the towns it gets thin, and that applies to every SIM and every Australian carrier alike. On the Stuart Highway between Adelaide, Alice Springs and Darwin, across the Nullarbor, on the Gibb River Road and through much of the Kimberley, there is often no signal at all for hours between two settlements. Optus reaches further along the highways and in small towns, but thins out once you're outside the populated corridors. In the towns themselves – Alice Springs, Yulara at Uluru, Coober Pedy, Katherine, Broome – you are back on the network.
This got harder in 2024, when the last Australian 3G networks were switched off: 4G does not travel as far as the old 3G did, and people in rural areas report spots that used to show a bar and now show none. So plan offline: download maps for the route in advance, write down accommodation and meeting points, and tell someone which way you are driving. Your eSIM hotspot will keep a laptop, a tablet and your passengers going on the road – but only where there is a signal. For genuinely remote tracks, Australians carry a satellite emergency beacon or a satellite messenger, and that is not over-cautious advice.
How much data do you need in Australia?
So you can work it out instead of guessing: how much an hour costs in the apps you actually use on holiday.
Just staying reachable
1–3 GB
Messages, the map now and then, checking mail. Everything else runs on the hotel Wi-Fi.
An ordinary holiday
5–10 GB
Navigating, social media, uploading photos, a few videos in the evening.
Out a lot, or a laptop along
20 GB and up
Streaming in the evening, video calls home, keeping a laptop or tablet online through your phone.
Data used per hour
The Netflix and Spotify figures come from the providers themselves (Netflix Help Center, Spotify Support, retrieved 28 Aug 2026). The rest are network-operator estimates (o2, EE) and vary with picture quality and reception.
What does an eSIM for Australia cost?
Simbye offers 8 plans for Australia from €1,95 to €46,95 — data packs from €1,95, unlimited from €18,95. Prepaid, no contract.
Plans for Australia range from 1 GB to 50 GB, plus unlimited options.
Validity runs from 7 to 180 days and starts with your first connection in Australia.
| Plan | Validity | Price | Per travel day |
|---|---|---|---|
| 1 GB | 7 days | €1,95 | €0,27 |
| 5 GB | 30 days | €6,95 | €0,23 |
| 10 GB | 30 days | €11,95 | €0,39 |
| 20 GB | 30 days | €18,95 | €0,63 |
| Unlimited | 7 days | €18,95 | — |
| Unlimited | 15 days | €32,95 | — |
| 50 GB | 180 days | €42,95 | €0,23 |
| Unlimited | 30 days | €46,95 | — |
- Networks
- Optus
- Setting it up
- A link in your email, or the QR code — one tap is enough
- Network technology
- 4G/LTE — and 5G where the network already offers it
- APN and settings
- Nothing to set. The eSIM brings everything with it
- Hotspot
- Allowed — for a laptop, tablet or a travel companion
- Adding more data
- Top up any time, without setting anything up again
- Calls and texts
- Not included — WhatsApp calls run over the data
- Your own number
- Stays in the phone and stays reachable
- Contract
- None. The plan ends by itself
- Worth knowing
- Roaming on your home contract gets billed here — this eSIM is prepaid, so nothing is added afterwards
Frequently Asked Questions about Australia eSIM
Data, calls, real phone numbers, top-ups and setup — everything you need to know before you buy a Simbye eSIM.
