One NZ review
Updated September 28, 2026 · NomadCue Editorial Team · Facts checked September 26, 2026
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Our verdict
One NZ is a carrier travel SIM for visitors who need data inside New Zealand and nowhere else. Short trips and long stays both find a fit, with unlimited data on the One NZ network and plans from NZD 29. Anyone crossing several borders needs a wider plan.
Key facts
- Best for
- Visitors to New Zealand who want carrier unlimited data plus top-ups
- Price from
- NZ$29↗
- Countries covered
- 1↗
- Unlimited data
- Yes↗
- Reference plan prices
- New Zealand only: $29 (30 days), $49 (60 days), $69 and $99 (90 days)↗
- 5G
- Yes↗
- Fair use policy
- Fair Use Policy applies to some services; we may restrict, suspend or cancel services where usage is excessive or unreasonable↗
- Networks
- One NZ↗
- Top-ups
- Yes↗
- Seller type
- Carrier↗
- Legal entity
- One New Zealand Group Limited↗
- Headquarters
- New Zealand↗
- Founded
- 1998↗
- Support channels
- Chat, Phone, Help-centre↗
- Region
- Local
- Features
- Unlimited data, 5G, Carrier plan
- Audience
- Short trips, Long trips
- Official website
- one.nz
Facts checked September 26, 2026, 9 sources
Pros and cons
Pros
- Unlimited data is included, and heavy use falls under fair use rules that can apply limits to some services
- 5G is available on a carrier plan that runs on the One NZ network
- Top-ups are offered, so a longer stay can be added to rather than repurchased
- Support runs on chat, phone and help centre
Cons
- Coverage is 1, so the plan does not stretch beyond New Zealand
- The entry price of NZD 29 sits above the site median of €5
- As a carrier (carrier), the plan choice is validity length, so wider country catalogues sit with alternatives such as Zwitchy
Who it suits
- Travellers whose whole trip sits inside New Zealand
- Short stays and long stays, since plans come in several validity lengths
- People who want unlimited data and can top up rather than count gigabytes
Who should look elsewhere
- Multi-country trips, where Zwitchy covers 200 countries
- Travellers after a lower entry price, where eSIMGo.is starts at $0.99
- Anyone comparing a different kind of destination plan, where SimToIsrael is priced from $25
Where it sits among rivals
On countries covered, One NZ ranks 257 of 303, which reflects a home market focus rather than a thin offer. On price from it ranks 251 of 313. Both placements follow from selling a single market plan, so a wide itinerary points elsewhere.
What data costs
Plans start at NZD 29 for a New Zealand only travel SIM. Reference plan prices rise in steps as the validity length grows, and the top tier costs more than the entry plan. Data is unlimited rather than sold as a gigabyte cap, and top-ups are offered for longer stays.
How One NZ compares
8.8 vs 9.3
8.8 vs 9.3
8.8 vs 8.5
8.8 vs 9.3
8.8 vs 9.5
8.8 vs 8.0
8.8 vs 9.2
8.8 vs 9.0
8.8 vs 8.9
8.8 vs 9.5
8.8 vs 8.5
8.8 vs 9.3
8.8 vs 8.9
8.8 vs 8.8
8.8 vs 9.2- 8.8 vs 9.6
- 8.8 vs 9.5
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8.8 vs 9.2- 8.8 vs 9.2
8.8 vs 9.1- 8.8 vs 9.1
- 8.8 vs 9.1
8.8 vs 9.0
8.8 vs 8.8- 8.8 vs 8.7
8.8 vs 8.6
8.8 vs 8.6
Where One NZ is available
- Available
- New Zealand
Countries from the brand (Source, checked September 26, 2026)
Frequently asked questions
How much does a One NZ travel SIM cost?+
Plans start at NZD 29 and are sold as New Zealand only travel SIMs. Reference plan prices step up as the validity length grows, so the longest plan costs the most. That entry price sits above the site median of €5, which makes One NZ a mid-priced option here.
Is the data on a One NZ travel SIM unlimited?+
Unlimited data is included on the One NZ network, so there is no gigabyte cap to track. Heavy usage can draw attention under the fair use rules that cover some services, with limits applied or the service stopped. Top-ups are offered for trips that need more.
Which countries does a One NZ travel SIM cover?+
Coverage is 1, and the reference plan prices are quoted for New Zealand only. That makes this a single market plan, so it suits a trip that never leaves the country. On this list it ranks 257 of 303 for countries covered.
What network does a One NZ travel SIM run on and how do I get help?+
It runs on the One NZ network with 5G available, and One NZ is the carrier behind the plan. Support runs on chat, phone and help centre, so a traveller can pick chat, phone or the help centre. The terms behind the plan sit with One New Zealand Group Limited.
How long does a One NZ travel SIM last?+
Validity is what the plan tiers differ on, and the reference prices cover several lengths for New Zealand only, with the longest costing the most. Short trips and long trips are both listed audiences (short trip and long trip), so a short stay and an extended one each find a matching plan.
Who is a One NZ travel SIM for?+
It suits visitors whose whole trip sits inside New Zealand, and it is listed for both short trips and long trips (short trip and long trip). Travellers crossing several borders should look elsewhere: Zwitchy covers 200 countries, and the site median for countries covered is 74.
Can I top up a One NZ travel SIM while travelling?+
Top-ups are offered, so a traveller who runs short during a longer stay can add data rather than buy a new plan. The prepaid add-on terms set the conditions, and the fair use rules covering some services still apply to the added data. Help if a top-up goes wrong runs on chat, phone and help centre.
Who runs One NZ and how old is the company?+
One NZ is the carrier selling the plan, headquartered in New Zealand and founded in 1998. The legal entity behind the terms is One New Zealand Group Limited. As the network operator, it sets its own plan tiers, validity lengths and support rather than reselling another provider's eSIM.
Sources
- en.wikipedia.org/wiki/One_NZ checked September 26, 2026
Backs: Founded, Headquarters
“was formed in 1998 as Vodafone New Zealand, after Vodafone purchased BellSouth's New Zealand operations”
- one.nz checked September 26, 2026
Backs: Support channels
“Contact our team: Send us a message or call us. Help and support: Find answers fast.”
- one.nz/legal/policy/fair-use checked September 26, 2026
Backs: Fair use policy
“If your excessive or unreasonable usage continues after receipt of a request to stop or alter the nature of such usage, we may without further notice restrict, suspend or cancel your Services.”
- one.nz/legal/terms-conditions/general checked September 26, 2026
Backs: Legal entity
“One NZ, us and we means One New Zealand Group Limited.”
- one.nz/legal/terms-conditions/mobile checked September 26, 2026
Backs: 5G
“All One NZ Prepay SIMs are 4G and 5G enabled.”
- one.nz/legal/terms-conditions/prepay-add-ons checked September 26, 2026
Backs: Features, Unlimited data
“Buy a $5 Burst Add-On and get unlimited max speed data, unlimited minutes and unlimited TXTs to standard NZ & Australian mobile and landline numbers for 24 hours. It is also available on NZ Travel...”
- one.nz/legal/terms-conditions/travel-sim checked September 26, 2026
Backs: Top-ups
“You must top up $30, $50, $70 or $100 to purchase a Plan.”
- one.nz/roaming/welcome-to-nz checked September 26, 2026
Backs: Networks, Seller type
“One NZ's mobile network operates on 4G and 5G. It covers over 99% of the places New Zealanders live, work, and play”
- one.nz/travel-sim checked September 26, 2026
Backs: Audience, Countries covered, Price from, Reference plan prices, Region
“Planning on coming here for up to 90 days? Buy your eSIM online now and then call 777 to activate your Travel SIM once you land in New Zealand.”
Compiled from 9 source pages, checked September 26, 2026. We did not open an account.
Not confirmed yet: Price per GB from, Hotspot sharing.