If you're combining Australia and New Zealand in one trip, an eSIM that covers both countries with a single plan saves you from buying two cards and keeps you connected from Sydney to Auckland without touching a thing. In this guide, we tell you about the real coverage, which networks it relies on, how many GB you need for the enormous distances of Oceania, and how to get everything ready before such a long flight.
An eSIM for both countries
The Australia and New Zealand eSIM is a single plan that works in both destinations, so you cross the Tasman Sea without changing cards or buying anything new. It's installed before you leave home and connects automatically upon landing in either country.
Australia and New Zealand are the classic travel pair: they are 22-24 hours away by flight from Spain, so almost no one goes to just one. It makes sense to take advantage of the big trip to see both, and that's where a regional eSIM makes perfect sense: instead of an Australian eSIM and a New Zealand eSIM, you get a combined Australia and New Zealand eSIM that covers the entire route. If you only end up visiting one, you can always use the Australia eSIM or the New Zealand eSIM separately.
Practical advantage: being digital, you buy and install it from Spain using Wi-Fi, and you don't waste a minute upon arrival looking for a store on the other side of the world. Activation takes about a minute.
Coverage and operators in Australia
In Australia, the eSIM relies on the country's major mobile networks —Telstra, Optus, and Vodafone— which provide excellent coverage in cities and along the east coast, where almost all the population is concentrated. Telstra has the widest reach in rural areas and the Outback.
The reality in Australia is that the country is enormous (over 7.5 million km²) but largely empty inland. Mobile coverage is excellent in populated areas —Sydney, Melbourne, Brisbane, Perth, the capital Canberra— and on main roads, but it becomes intermittent in the desert interior. For a normal tourist trip (cities, Great Barrier Reef, Uluru with tours, Great Ocean Road), the connection is solid most of the time.
Tip for the Outback: If you're driving through remote areas, download offline maps before leaving the city. Neither the best eSIM nor a local SIM provides coverage where there are no antennas, and in central Australia, there are very long stretches without signal.
If your trip focuses on a single Australian city, we have specific guides for eSIM in Sydney and eSIM in Melbourne with local details.
Coverage and operators in New Zealand
In New Zealand, the main networks are Spark, One NZ (formerly Vodafone), and 2degrees. They provide excellent coverage across both islands in populated areas and on the most traveled tourist routes, although in more remote national parks and fjords, the signal can be lost, which is normal in such mountainous terrain.
New Zealand is a small country focused on nature: North Island (with the capital, Wellington, and Auckland) and South Island (Queenstown, glaciers, Milford Sound). Scenic roads usually have decent coverage, but when you venture into Fiordland or mountain tracks, be prepared for stretches without signal. For 90% of the trip —cities, towns, accessible viewpoints— the eSIM works without issues.
If you're only traveling to New Zealand or want details on a specific city, check out the guide for eSIM in Auckland. And if you're comparing options before deciding, it helps to see the best eSIM for Australia, which also applies to combined routes with New Zealand.
How many GB for Oceania
For a typical two-to-three-week trip to Australia and New Zealand, most travelers manage with 10 to 20 GB. You'll use your phone a lot for maps, bookings, photos, and sharing your journey, so it's best not to run short on such a long and expensive getaway.
Distance works against you: there are many hours of driving or bus travel between attractions, and your phone becomes your co-pilot (GPS, music, podcasts). These are indicative references based on how you use data on a long two-week trip:
| Traveler Profile | Main Usage | Suggested Data |
|---|---|---|
| Light user | Maps, WhatsApp, email | 8-10 GB |
| Medium user | Social media, photos, some video | 12-18 GB |
| Heavy user | Live streaming, video, work | 20 GB or top-up |
Remember that video consumes the most data: a few hours of reels or series a day will quickly eat up your GBs. If in doubt, go for a higher plan or buy a plan that you can top up on the go. To fine-tune according to your case, review how much data you need for travel.
Step-by-step activation
With almost a day's flight ahead, it's best to have the eSIM installed in Spain and activate it only upon landing in Sydney, Melbourne, or Auckland. This way, you make the most of all the plan's days and don't spend anything while still at home.
The process is simple and you do it once:
- Purchase the eSIM and receive the QR code by email in minutes.
- With Wi-Fi at home, go to Settings > Mobile Data > Add eSIM and scan the QR.
- Label the line as "Oceania" to recognize it.
- Keep your Spanish SIM as primary until you land.
- Upon arrival, set the eSIM as your data line and activate roaming for that line.
If this is your first time using an eSIM, the complete step-by-step guide on how to install the eSIM and the guide on how to activate data roaming upon arrival will be helpful. The eSIM connects automatically as soon as you turn off airplane mode.
Tips for the combined trip
Crossing from Australia to New Zealand (or vice versa) with a regional eSIM requires no action: the plan automatically switches networks upon landing in the other country. But there are a couple of details that make a difference on such a long trip:
First, jet lag and time difference: Oceania is 8-10 hours ahead of Spain, so have your data ready to let your loved ones know you've arrived. Second, the price difference between the two countries doesn't affect your eSIM (you pay for the plan upfront), which is a relief compared to roaming. And third, if you're driving through both countries, always carry downloaded maps: distances are enormous, and there are stretches without coverage in the Australian interior and on New Zealand's South Island.
A useful extra: keep your Spanish SIM active to receive bank or airline SMS messages, and only use the eSIM for data. This way, you won't miss important verifications 17,000 km from home.
Frequently asked questions
Does the same eSIM work in Australia and New Zealand?
Yes, that's exactly the purpose of the regional plan: a single eSIM that works in both countries. When crossing from one to the other, it automatically connects to the local networks of the new destination without you having to change cards or buy anything extra during the trip.
Does the eSIM work in the Outback and in the fjords?
It works where there is coverage from local networks, which is most cities and tourist routes. In the desert interior of Australia and in remote mountainous areas of New Zealand, there are no antennas, so no eSIM or local SIM will provide signal there. Download offline maps.
How many days of plan do I need for this trip?
It depends on your itinerary, but a combined trip usually lasts between two and three weeks due to the distances. Choose a plan whose validity covers all your days on the ground, starting from when you land. It's better to have a couple of days extra than to run out of data at the end of the trip.
Can I use the eSIM for GPS while driving?
Yes, and it's one of its star uses in Oceania due to the long distances between points. GPS with Google Maps consumes relatively little data, but since you'll be driving for many hours, have maps downloaded in case you pass through an area without coverage between cities.
Do I keep my Spanish number during the trip?
Yes. The eSIM only handles data, while your Spanish SIM remains active for calls and SMS. This way, you receive messages from your bank or airline normally. It's advisable to deactivate data on the Spanish line to avoid accidentally incurring expensive roaming charges from your operator.
Conclusion
Combining Australia and New Zealand is an incredible trip, and with a regional eSIM, you'll be connected from one end to the other without changing cards or facing surprise bills. Solid coverage in cities and on routes, plenty of GB for long distances, and activation in just a minute. Prepare your Australia and New Zealand eSIM and take off with peace of mind.
