eSIM for Australia

eSIM, roaming or a local SIM in Australia

Visitors usually choose between three options. Each has real trade-offs.

How much data to plan for

Australian trips are often long, with lots of driving and domestic flights. Figures are approximate:

• Maps and navigation: a few megabytes per hour; offline maps are essential outside cities.
• Public transport apps: light; useful for live times in Sydney, Melbourne and Brisbane.
• Messaging: light for text, more for photos and voice notes.
• Social media: moderate to heavy, especially with video of beaches and wildlife.
• Video calls: typically several hundred megabytes per hour, often at awkward hours because of time differences.
• Streaming: heavy, often a gigabyte or more per hour in high definition.

Before you go

Install the eSIM at home on Wi-Fi. First check your phone supports eSIM and is carrier-unlocked.

Then follow the install guide for iPhone, Samsung or Pixel. Label the line "Australia", keep your home SIM as default for calls and texts, and set the Spidot line for mobile data.

• Install the eSIM a day or two before your long-haul flight.
• Download offline maps for every region you will visit, including entire road-trip routes.
• Save booking confirmations, campsite details and emergency contacts offline.
• Turn off data roaming on your home SIM.
• Note that Australia's emergency number is 000.

Arriving in Australia

Most international flights land in Sydney, Melbourne, Brisbane or Perth, with others arriving in Adelaide, Cairns, the Gold Coast and Darwin. After a long flight, it is a relief to have data working in the arrivals hall.

When you land, select the Spidot line for mobile data and turn on data roaming for it. Our data roaming guide shows where the setting is. If it does not connect after a minute or two, switch flight mode on and off once.

Coverage in cities, the coast and the outback

In the big cities and regional towns, and along much of the populated east and south-east coast, mobile data generally works as you would expect. In Australia, the Spidot eSIM connects to Optus.

Australia's interior is a different story. Large parts of the country have no mobile coverage at all, and even on major highways there can be hundreds of kilometres between towers.

• The outback: expect long stretches without signal between towns on routes like the Stuart Highway, the Nullarbor and outback tracks.
• Uluru and Kata Tjuta: coverage is usually available around Yulara and the resort area, but not across the whole national park.
• National parks and rainforests: places like the Daintree, Kakadu and parts of the Blue Mountains and Tasmania have patchy coverage.
• The reef and islands: you may have signal on popular islands and near the coast, but out on the reef there may be little or none.
• The west and north: the Kimberley, the Pilbara and remote coastlines are very sparsely covered.

Data on trains, ferries, flights and road trips

Most visitors combine domestic flights with road trips. Cities have good public transport: Sydney's trains, ferries and light rail use the Opal system, Melbourne's trams and trains use myki, and Brisbane uses the go card, with contactless bank cards accepted on many services. Data lets you check live times and plan connections.

Long-distance trains such as the Indian Pacific and the Ghan cross the continent, and coverage on board comes and goes. The Spirit of Tasmania ferry links Victoria with Tasmania across Bass Strait; expect no mobile coverage for much of the crossing.

Sharing data with a hotspot

Campervans, holiday parks and some hotels have limited Wi-Fi. Your phone's personal hotspot can connect a laptop or tablet; it shares the line selected for mobile data, so make sure that is the Spidot line.

Hotspots use data quickly, especially for streaming in the evenings. Pause cloud backups and automatic updates, and keep an eye on your balance.

Using public Wi-Fi safely

Libraries, cafés, shopping centres and some public transport offer free Wi-Fi. It is convenient, but open networks can be insecure.

• Use your eSIM data for banking, payments and logins.
• Check the exact network name before connecting.
• Turn off automatic joining of open networks.
• Keep your phone and apps updated.

Practical tips for Australia

A few local details worth knowing:

• Payments: contactless card and phone payments are used almost everywhere, including for small amounts. Some businesses add a surcharge for card payments.
• Sun: the sun is strong. Phones overheat on car dashboards and on the beach, so keep yours in the shade.
• Beaches: swim between the red and yellow flags at patrolled beaches, and check local advice on marine stingers in northern waters in the warmer months.
• Seasons: seasons are the reverse of the northern hemisphere. The tropical north has a wet season and a dry season, and some roads close in the wet.
• Time zones: Australia spans several time zones, and some states use daylight saving while others do not. Check times when booking calls and flights.
• Wildlife: dawn and dusk are peak times for kangaroos on the roads.

Australia on a multi-country trip

Australia is often combined with New Zealand, Fiji or stops in Asia such as Singapore, Indonesia or Thailand.

For trips through several countries, install one eSIM per country before you leave home. Most eSIM phones can store several, and you switch mobile data to the right line when you arrive.