The short verdict
For most New Zealand trips, buy the Flysimio New Zealand eSIM: it runs on One NZ (formerly Vodafone NZ), one of the country's two best-covered networks, with 5G in Auckland, Wellington and Christchurch and 4G across Queenstown, Rotorua and the main highways. It costs $2.13 for 1 GB / 7 days and $10.45 for 5 GB / 30 days, against $4.50 and $13 at Nomad when we checked on October 29, 2026. Hotspot is included, and you get a full refund within 7 days if it is unused or has used less than 100 MB.
Flysimio New Zealand eSIM
Pick the plan for your trip · instant QR · 7-day refund
Flysimio New Zealand eSIM plans
For a one- to two-week trip, the 5 GB / 30-day plan at $10.45 covers maps, messaging and social for New Zealand. Every plan includes hotspot. Full live range (prices update hourly):
| Data | Validity | Price | Per GB |
|---|---|---|---|
| 1 GBBuy$2.13 | 7 days | $2.13 | $2.13/GB |
| 3 GBBuy$6.28 | 15 days | $6.28 | $2.09/GB |
| 5 GBOur pickBuy$10.45 | 30 days | $10.45 | $2.09/GB |
| 10 GBBuy$19.05 | 30 days | $19.05 | $1.91/GB |
| 20 GBBuy$34.98 | 30 days | $34.98 | $1.75/GB |
| 50 GBBuy$76.08 | 180 days | $76.08 | $1.52/GB |
Every plan: instant QR delivery, no physical SIM, and a 7-day money-back guarantee.
New Zealand's mobile networks
| Carrier | Coverage | Best for |
|---|---|---|
| One NZ (Flysimio) | One of NZ's two best-covered networks; 5G in the main cities | Auckland, Wellington, Christchurch, Queenstown, Rotorua and the main highways of both islands |
| Spark | The other best-covered network | Similar reach to One NZ across both islands |
| 2degrees | Good urban, thinner rural | City-only stays on a tight budget |
Coverage across New Zealand's top destinations
| Destination | Coverage | Notes |
|---|---|---|
| Auckland | 5G on all carriers | Excellent coverage across the city and airport (AKL) |
| Wellington | 5G on Spark and One NZ | Strong throughout the capital and harbour |
| Queenstown | 4G/5G on Spark and One NZ | Full coverage in town; patchy on remote trails and passes |
| Rotorua | 4G on all carriers | Strong in town and around the geothermal parks |
| Christchurch | 5G on Spark and One NZ | Strong across the city and Banks Peninsula towns |
| Milford Sound / Fiordland | Very limited | Signal drops on the Milford Road; almost none in the fjords — plan offline |
| Franz Josef & Fox Glacier | 4G on Spark in town | Coverage in the villages only; none on the glaciers |
| Bay of Islands | 4G on Spark and One NZ | Good in Paihia and Russell; patchy on outer islands |
Which New Zealand eSIM for your trip?
| Trip type | Recommended | Why |
|---|---|---|
| Auckland and Rotorua (one week) | Flysimio 5 GB / 30 daysBuy$10.45 | Maps, rideshare and social for a week, with room to spare |
| North + South Island road trip (2–3 weeks) | Flysimio 10 GB / 30 daysBuy$19.05 | Navigation on long driving days and photos from the viewpoints |
| Campervan month | Flysimio 20 GB / 30 daysBuy$34.98 | Holiday-park Wi-Fi is patchy; hotspot covers a laptop |
| Great Walk plus a few town days | Flysimio 3 GB / 15 daysBuy$6.28 | Enough for Queenstown and Te Anau; the tracks themselves are offline |
The Great Walks are genuinely offline
If your trip includes Fiordland's Great Walks, know that they are true no-signal zones. New Zealand's Department of Conservation states there is no cellphone coverage anywhere on the Milford Track or the Routeburn Track — not on the trail and not at either car park — on any carrier. The Kepler Track and the Milford Road are much the same once you leave Te Anau. This is not a Spark-versus-One-NZ question; nothing reaches in there.
New Zealand eSIM vs a local SIM card
One NZ, Spark and 2degrees sell visitor SIMs at Auckland, Wellington and Christchurch airports. A travel eSIM is bought online and installed before you fly, connects to One NZ when you land, and leaves your home SIM in the phone for calls and texts. The eSIM is data-only, so there is no local number. Phone settings (data roaming, keeping your number) are covered step by step in how to use an eSIM abroad.
Combining New Zealand with Australia or Asia? The 20-country tier of the Asia eSIM includes New Zealand and Australia.
Installing your New Zealand eSIM
- Buy before you fly — install on home Wi-Fi.
- Open the Flysimio email for the QR code.
- iPhone: Settings → Cellular → Add eSIM → Use QR Code.
- Android: Settings → Network & Internet → SIMs → Add SIM.
- Scan the QR code. Installation takes under 30 seconds.
- Label it "New Zealand" and set it as your data line.
- Turn off Data Roaming on your home SIM only.
- Your phone connects to One NZ when you land at Auckland (AKL), Christchurch (CHC) or Queenstown (ZQN).
Frequently asked questions
Can I use my US phone in New Zealand?
Yes, if it is unlocked and supports eSIM. Install the New Zealand eSIM before you fly for data, and keep your US line on for calls and texts with data roaming off, which avoids a daily carrier roaming fee.
What is the best eSIM for New Zealand?
The Flysimio New Zealand eSIM: it runs on One NZ, one of the country's two best-covered networks, and costs $10.45 for 5 GB / 30 days, against $13 at Nomad when we checked on October 29, 2026. Hotspot is included and it is refundable within 7 days if unused.
Does an eSIM work in Queenstown and the South Island?
Yes. Queenstown, Christchurch, and the main South Island towns have strong 4G/5G on Spark and One NZ. Coverage thins on remote alpine passes, the West Coast, and Fiordland, so download offline maps for driving days.
Is there mobile coverage at Milford Sound?
Very little. The Milford Road and the fjords of Fiordland have almost no mobile signal on any carrier. Download your maps, tickets, and directions before you leave Te Anau or Queenstown.
Which network is best for a New Zealand road trip?
One NZ and Spark are New Zealand's two best-covered networks, and both reach the main highways and tourist towns of both islands. The Flysimio eSIM runs on One NZ. On the Milford Road, the West Coast and the Great Walks, coverage drops on every network, so download offline maps for those days.
Does any eSIM work on the Milford Track?
No. The Department of Conservation states there is no mobile coverage anywhere on the Milford or Routeburn Tracks, including the car parks, on any network. Download maps, hut bookings and transport details before you start, and leave your plans with someone.
What if the eSIM does not work for me?
You can get a full refund within 7 days of purchase if the eSIM is unused or has used less than 100 MB, so you can install it and check it connects first. If it genuinely fails on our side, we refund it in full after that too. Full terms are in our refund policy.
Do I need a New Zealand SIM card or can I use an eSIM?
An eSIM is the better choice for most visitors — it is cheaper than airport kiosks, installs before you land, and keeps your home number active. A physical SIM is only necessary if your phone does not support eSIM.
Flysimio New Zealand eSIM
$2.13 from · instant QR · 7-day refund
Sources & further reading
Maya Okafor
Senior Travel Connectivity Editor
Maya has tested eSIMs across 40+ countries over five years of full-time travel — from Tokyo subways to Patagonian backroads. She runs Flysimio’s hands-on network and speed testing.