Best eSIM for Oceania: Australia and New Zealand Tested (Yes, Even the Outback)
Mika Soren
Best eSIM for Oceania: Australia and New Zealand Tested (Yes, Even the Outback)
I grew up splitting time between Finland and Australia, which means I have two very specific frames of reference for mobile coverage. Finland: you can get signal in the middle of a forest in Lapland during a snowstorm. Australia: you can drive for four hours through the outback and your phone becomes a very expensive camera with no way to share anything.
Both countries have excellent coverage where people actually live. The difference is how much empty space sits between those pockets of coverage. And in Australia, the answer is: a LOT of empty space.
New Zealand is similar but smaller. Cities are well connected, the countryside is surprisingly good along main routes, and the truly remote backcountry (think: multi-day hikes in Fiordland) is offline territory. Which, honestly, is part of the appeal.
I’ve tested eSIMs extensively in both countries. This guide covers what works, where it works, and which providers I’d actually put my own money on.
What makes Oceania different
Distance. Australia is roughly the size of the contiguous United States. New Zealand is the size of the UK but stretched vertically. The sheer distances between populated areas mean coverage gaps are inevitable. No provider, eSIM or otherwise, covers every square kilometer.
Strong networks in populated areas. Both countries have excellent 4G/5G networks in cities and suburbs. Sydney, Melbourne, Brisbane, Auckland, Wellington, Queenstown. All excellent. You’ll stream, navigate, and video call without a thought.
The “last mile” problem. It’s the spaces between cities that challenge you. The Great Ocean Road? Mostly covered. The Nullarbor Plain? Good luck. New Zealand’s Milford Sound road? Patchy. The South Island’s West Coast? Intermittent. For most tourists staying on popular routes, this is rarely an issue. For road trippers and adventurers, it’s worth knowing.
Carrier matters. In Australia especially, which carrier network your eSIM connects to makes a real difference. Telstra has the best rural coverage by a significant margin. Optus and Vodafone are great in cities but drop off faster in remote areas. Some eSIM providers let you choose; others don’t.
My recommended eSIM providers for Oceania
1. eSIMply: best overall
eSIMply is my pick for both countries. I’ve used them across eastern Australia (Sydney, Melbourne, Brisbane, Gold Coast) and in Auckland. Coverage was consistently strong in every urban area, and I maintained good 4G signal along the main highway corridors.
For Australia, the key question is always network partner. eSIMply’s Australian plans deliver solid coverage in cities and along major tourist routes. If your trip is primarily city-based with perhaps a road trip along the coast, eSIMply handles it well.
Their New Zealand plans are similarly reliable. Auckland, Rotorua, Queenstown, Wellington. All connected, all fast.
Browse eSIMply Oceania Plans →
2. Airalo: best for flexibility
Airalo offers multiple plan tiers for both Australia and New Zealand, including some that connect to different carrier networks. The flexibility to choose your data amount and validity period is useful for trips that range from a quick weekend in Melbourne to a month-long road trip across both countries.
Their Oceania regional plan covers both countries on one eSIM, which is perfect for the classic Australia + New Zealand combo trip.
3. Saily: best for security
Saily’s VPN encryption adds a layer of privacy. Both Australia and New Zealand have strong public Wi-Fi networks in cafes and libraries, and the VPN layer keeps your connection secure. Coverage in major cities is excellent.
4. Nomad: best for short stays
Nomad’s smaller plans are ideal for a quick Sydney business trip or a long weekend in Queenstown. Competitive entry-level pricing. You don’t need 20GB for a four-day visit. Nomad lets you buy small.
5. Roamless: best for variable trips
The pay-per-MB model works well for Oceania trips where your daily data usage swings wildly. Exploring a city? You’ll use plenty of data. Spending a day hiking in Abel Tasman? You’ll use almost none. Only paying for what you consume makes sense here.
Coverage breakdown
Australia
Major cities (Sydney, Melbourne, Brisbane, Perth, Adelaide): Excellent 4G/5G. Coverage is as good as any city in Europe or North America. No issues with any provider.
Coastal routes (Great Ocean Road, Pacific Coast, Gold Coast to Brisbane): Generally well covered with some brief gaps in very remote stretches. The popular tourist drives are fine.
Regional towns: Good coverage in most towns. Think: Cairns, Alice Springs, Broome, Hobart. You’ll have solid 4G in town. Between towns is where it gets interesting.
The outback: Variable to nonexistent. If you’re driving through central Australia, between Alice Springs and anywhere, expect long stretches with no signal. This is true for ALL carriers, not just eSIMs. Satellite phones exist for a reason out here.
New Zealand
North Island (Auckland, Rotorua, Wellington): Excellent coverage. Urban and suburban areas are fully covered. The main highways between cities have good signal.
South Island cities (Christchurch, Queenstown, Dunedin): Strong coverage in all urban areas. Queenstown, despite feeling remote, has excellent connectivity.
South Island backcountry: This is where coverage thins. Milford Sound road has intermittent signal. The West Coast between Hokitika and Haast has gaps. Multi-day hikes in Fiordland or Mt. Cook area will be largely offline.
Ski resorts: Most major ski areas (Whakapapa, Coronet Peak, Remarkables) have coverage at the base but not necessarily on all runs.
Country-by-country guides
Detailed eSIM comparisons with pricing, provider rankings, and setup instructions:
Tips I’ve learned the hard way
Australia: download offline maps for any road trip. Even popular routes like the Great Ocean Road have brief dead zones. Google Maps offline mode costs you nothing and could save you from missing a turn in the middle of nowhere.
New Zealand’s South Island needs a backup plan. If you’re driving the South Island (and you should, it’s incredible), accept that some of the most scenic stretches will be offline. Download maps, save your accommodation addresses locally, and enjoy the disconnection.
Carrier network matters more here than anywhere else. In Europe, the difference between providers is minimal. In Australia, the gap between Telstra’s rural coverage and Vodafone’s is enormous. If your trip includes remote areas, research which network your eSIM provider uses in Australia.
Both countries have great library Wi-Fi. Random tip, but genuinely useful for budget travelers. Public libraries in Australia and New Zealand offer free, fast Wi-Fi. I’ve used library Wi-Fi in half a dozen Australian towns for heavy uploads and video calls.
Plan your data around your itinerary. Five days in Sydney? 5GB is plenty. Two weeks driving the coast? 10-15GB. A month bouncing between cities and remote areas? 15GB+ with the expectation that some of it will go unused during offline stretches.
New Zealand has better rural coverage than you’d expect. For its size and terrain, New Zealand punches above its weight. I was pleasantly surprised by coverage on the Otago Rail Trail and in Kaikoura. Don’t write off rural NZ based on horror stories from five years ago. The networks have improved.
Frequently asked questions
Do I need a separate eSIM for Australia and New Zealand?
Only if you buy country-specific plans. Airalo and some other providers offer Oceania regional plans that cover both. If you’re visiting both countries (which many travelers do), a regional plan saves you the hassle of two installations.
Will my eSIM work in the Australian outback?
In towns, yes. Between towns, probably not. The outback is one of the most remote inhabited regions on Earth. No eSIM provider can offer coverage where there are no cell towers. If you’re doing a serious outback trip, consider a satellite messenger as backup.
Is 5G available in Australia and New Zealand?
Yes, in major cities. Australia’s 5G rollout is more advanced, with coverage in Sydney, Melbourne, Brisbane, and Perth. New Zealand has 5G in Auckland and Wellington. For travel purposes, 4G LTE is more than fast enough.
Can I use my eSIM for mobile hotspot/tethering?
Most eSIM plans allow tethering, but check the specific terms. Tethering burns through data faster, especially if you’re connecting a laptop. Some providers throttle hotspot speeds. If you need reliable laptop connectivity, consider a larger data plan.
My take
Oceania is home turf for me (or half of it is, anyway). I’ve spent more time testing eSIMs in Australia than probably anywhere else. The summary is simple: cities are fantastic, popular tourist routes are great, and the truly remote bits are offline.
For the vast majority of travelers, an eSIM in Australia or New Zealand works perfectly. You’ll have data in every city, at every hotel, and along every main highway. The only people who need to worry are those doing genuine backcountry or outback travel, and if that’s you, you already know that connectivity isn’t guaranteed.
Pick your country above for specific pricing and provider details. And if you’re doing both countries (which I highly recommend), check the regional plan options to save yourself some hassle.