One NZ ended Casual Data Roaming on August 10: what travelers should use now
One NZ ended its older Casual Data Roaming product for affected accounts on August 10, 2026. Those customers can no longer let overseas mobile data accumulate at the former casual rate. Their replacement is either NZ$10-per-day Daily Roaming in eligible destinations, a prepaid Data Angel Overseas bundle, or another data option such as a Roaming eSIM.
This is not a blanket shutdown of every One NZ casual roaming rate. One NZ's current Prepay page still lists separate casual charges. The change page is aimed at customers One NZ contacted about the older product, so the account, plan and destination still decide which option appears.
The practical change: an affected traveler should no longer assume that turning on mobile data abroad will use a small pay-as-you-go balance. Check My One NZ before departure. If the account is eligible for Daily Roaming, a chargeable action can start a NZ$10 New Zealand-time day. Otherwise, buy a suitable Data Angel bundle or keep roaming data off.
What changed when One NZ retired Casual Data Roaming?
One NZ says it is closing older roaming products and moved affected customers away from Casual Data Roaming on August 10. The carrier now points those customers to two account-based alternatives:
- Daily Roaming: NZ$10 per day, per device, for most eligible Pay Monthly plans in more than 165 destinations.
- Data Angel Overseas: a fixed data bundle for eligible Pay Monthly customers whose plan or destination does not use Daily Roaming.
The carrier's change notice tells customers to check their plan in My One NZ. That is important because a destination appearing on a roaming page does not prove that every account receives the same product.
The retirement mainly changes how affected customers pay for data. Daily Roaming can also cover eligible calls and texts through the normal plan allowance. Data Angel is a data bundle, so it does not turn standard calls or SMS into an included service.
Did One NZ end casual roaming for Prepay customers too?
Not according to the pages available on August 12. One NZ's Prepay roaming page still publishes Prepay add-ons and casual rates, including per-megabyte data prices for Australia and other zones.
That does not make casual Prepay data a good default. Per-megabyte billing can become expensive quickly, especially when photo backup, app updates or background refresh runs without an obvious action. New Zealand's Commerce Commission advises travelers to check their provider's overseas costs or turn roaming off, and it specifically notes that background data can create unexpected charges.
The safe interpretation is narrow: the August 10 notice ended the named Casual Data Roaming product for affected customers. It did not announce that every Pay Monthly, business, tablet and Prepay roaming arrangement disappeared.
How One NZ Daily Roaming works after the change
One NZ's current Daily Roaming page publishes a NZ$10 fee for each device on each chargeable day. It is available on most Pay Monthly plans in more than 165 destinations. The usual plan allowance is then used for eligible data, calls and texts, subject to the plan and roaming terms.
Several details can change the total:
| Daily Roaming rule | What it means during a trip |
|---|---|
| One fee per device | A phone and connected watch can each create a charge if both use a chargeable service |
| Day runs from 00:00 to 23:59 New Zealand time | A short session around midnight in New Zealand can cross two billing days even when it is daytime at the destination |
| A call, voicemail use, sent text or PXT, or mobile-data use can trigger the fee | Opening an app is not the only way to start a day |
| Receiving an ordinary text is free | A verification SMS alone should not start Daily Roaming, but other activity on the line can |
| Up to 90 consecutive days | The product is not intended as an open-ended substitute for a local plan |
| Maritime and in-flight networks are excluded | A destination is covered on land, not automatically on a ship or aircraft |
One NZ's legal terms say calls within the visited destination and to New Zealand or Australia can use the eligible plan allowance. Other international calls can have separate charges. Receiving or downloading a PXT uses data, and 5G availability is not promised.
Watch the clock, not the local calendar. Daily Roaming follows New Zealand time. Before an evening call or data session abroad, check whether midnight in New Zealand is about to divide one local outing into two chargeable days.
What Data Angel Overseas bundles cost
Data Angel Overseas is the alternative named by One NZ when Daily Roaming is not available for the plan or destination. It is for Pay Monthly customers and is divided into roaming zones.
| Destination group | Published bundle options |
|---|---|
| Australia | NZ$17 for 100MB, NZ$35 for 250MB, or NZ$58 for 500MB |
| Zone 2 | NZ$17 for 40MB, NZ$35 for 100MB, or NZ$58 for 200MB |
| Zone 3 | NZ$35 for 5MB, NZ$58 for 10MB, or NZ$115 for 25MB |
These are small allowances by current travel-app standards, particularly in Zone 3. A map download, several high-resolution photos or automatic syncing could consume them quickly. One NZ sends usage alerts at 80% and 100%, but iPads do not receive those text alerts.
The timing deserves a careful read. One NZ's Data Angel terms say the bundle must begin within 30 days of purchase. Once first used, it remains active for 30 days. Only one bundle can be active in a zone at a time. Data Angel cannot be used on maritime networks, and some iPad or Corporate APN accounts cannot buy it by text.
How the NZ$10 daily fee changes the trip total
Daily Roaming is simple for a short stay, especially when keeping the One NZ number, calls and plan allowance together matters. The daily model becomes more noticeable on a longer trip.
| Chargeable days | Daily Roaming total at NZ$10 per day, per device |
|---|---|
| 3 | NZ$30 |
| 7 | NZ$70 |
| 14 | NZ$140 |
| 30 | NZ$300 |
This calculation assumes the traveler triggers Daily Roaming every day on one device. A day with no chargeable activity should not create the daily fee, while a second device can create its own fee. Taxes, plan charges and services outside the included allowance may also affect the bill.
Do not compare that total with an eSIM's lowest headline price. Match the full destination list, data allowance, validity, speed policy, hotspot rule and likely top-ups. Our broader travel eSIM versus roaming guide explains how to make that comparison without treating either option as universally cheaper.
Can you keep the One NZ number and use a Roaming eSIM for data?
Usually, on an unlocked dual-SIM phone that supports eSIM. Set the Roaming eSIM as the mobile-data line and keep the One NZ line available only for the calls or messages you need. The exact menus vary by phone.
This arrangement is useful for verification texts because One NZ says receiving an ordinary SMS is free. It is not a guarantee of a charge-free home line. Answering a call, calling voicemail, sending a text, using PXT or allowing mobile data through the One NZ line can trigger Daily Roaming or another roaming charge.
Before flying:
- Confirm that the phone is unlocked and supports dual SIM with eSIM.
- Install the Roaming eSIM while reliable WiFi is available, following its activation instructions.
- Label both lines clearly.
- Select the Roaming eSIM for mobile data.
- Turn off mobile-data switching so the phone cannot fall back to One NZ data.
- Keep data roaming off for the One NZ line unless you intend to use its roaming product.
- Check call forwarding, voicemail and WiFi Calling rules before leaving the home line enabled.
Our dual-SIM travel guide covers the phone settings. The calls and SMS guide explains why many travel eSIM plans provide data without a new telephone number.
Where Roaming eSIM gives travelers more control
One NZ Daily Roaming has a clear advantage when a short-trip traveler wants to use the usual number, calls and eligible home-plan allowance without installing a second service. Data Angel can work for someone who needs only a tiny, fixed data amount on an eligible Pay Monthly account.
Roaming eSIM gives the stronger fit when the traveler wants a trip-specific data budget, does not qualify for One NZ's account-based option, or would otherwise trigger the NZ$10 fee across many days.
| Traveler decision | One NZ after August 10 | Roaming eSIM advantage |
|---|---|---|
| Eligibility | Depends on the One NZ account, plan and destination | Available to travelers with a compatible, unlocked eSIM phone |
| Price structure | NZ$10 per chargeable day or a small zone bundle | Prepaid plan price and validity are shown before checkout |
| Data choice | Uses an eligible home allowance or one of three small Data Angel bundles | Destination pages show available fixed-data and unlimited options where offered |
| Trip length | Daily fees accumulate when triggered on multiple days | Choose a validity period that matches the route |
| Calls and usual number | Daily Roaming can be the better all-in-one option | Most travel plans are data-first; keep the home line carefully if the number matters |
| At sea or in the air | Daily Roaming and Data Angel exclude maritime and in-flight networks | Standard country plans also rely on terrestrial partner networks, so they do not create ship or aircraft coverage |
🏆 Roaming eSIM wins on data-budget control: the destination, allowance, validity, network information, speed terms and reloadability are visible on the selected plan before payment. That makes a seven or 14-day data decision easier to price than a fee that can restart each New Zealand day.
The advantage is backed by live availability, not a promise about future coverage. On August 12, our public catalog returned 125 plan listings across Australia, the United States, Japan and Fiji, four destinations covered by One NZ roaming. Availability and prices can change, so use the live product card rather than a price copied into this article.
Compare Australia Roaming eSIM, United States Roaming eSIM, Japan Roaming eSIM and Fiji Roaming eSIM plans. Check the chosen package for activation, hotspot, network, speed and top-up details.
What to do before leaving New Zealand
Use the written terms for the exact account instead of assuming the old setting still applies.
- Open My One NZ and identify the Pay Monthly, Prepay, tablet or business plan attached to each device.
- Search the destination on One NZ's roaming page and confirm whether Daily Roaming or Data Angel appears.
- Calculate the total across likely chargeable New Zealand-time days.
- Decide whether standard calls, SMS and the usual number are important enough to keep the home line active.
- Compare a destination or regional Roaming eSIM using the same trip dates and data requirement.
- Save setup instructions, support details, tickets and offline maps before departure.
- Turn off automatic app updates, photo backup and mobile-data switching on any metered line.
- Recheck the settings after a phone restart or software update.
One NZ says it does not offer mobile data at sea. Use the ship's published WiFi if needed and put the phone in airplane mode before it can attach to a maritime network. The cruise eSIM guide explains why ordinary country coverage stops offshore.
Questions One NZ travelers have after the roaming change
1. Did Casual Data Roaming end for every One NZ customer?
No. The August 10 change applies to affected customers using the older Casual Data Roaming product. One NZ's current Prepay page still lists separate casual rates, and other account types can have different terms.
2. What happens if an affected phone uses data overseas now?
The result depends on eligibility. An eligible Pay Monthly account can start a NZ$10 Daily Roaming day. A customer outside that product may need a Data Angel bundle or another data service. Check My One NZ before allowing the line to use data.
3. Does Daily Roaming need to be switched on each day?
One NZ describes it as an automatic daily service on eligible accounts. A chargeable action starts the fee; it is not a data bundle that the traveler manually buys again each morning.
4. Which actions can trigger the NZ$10 Daily Roaming fee?
Mobile-data use, making or receiving a call, using voicemail, and sending a text or PXT can trigger it. Receiving an ordinary SMS is free, but another action on the same line can still start the day.
5. Is a Daily Roaming day based on local time?
No. One NZ defines the day as 00:00 to 23:59 New Zealand time. Check the time difference when using the phone around New Zealand midnight.
6. Are calls and texts included with Daily Roaming?
Eligible calls and texts can use the home plan allowance. One NZ includes calls within the visited destination and to New Zealand or Australia under its stated conditions. Other international calls and services can cost extra.
7. What if the plan or destination is not eligible for Daily Roaming?
One NZ directs Pay Monthly customers to Data Angel Overseas where available. The traveler can also leave home-line data off and use a suitable Roaming eSIM, local SIM or WiFi connection.
8. When does a Data Angel Overseas bundle start and expire?
It must begin within 30 days of purchase. After the first use, the bundle lasts for 30 days. Only one bundle can be active per zone at a time.
9. Can a Roaming eSIM handle data while One NZ receives verification texts?
Yes on many compatible dual-SIM phones. Select the Roaming eSIM for data and disable data switching. Receiving an ordinary SMS on One NZ is free under the current terms, but calls, voicemail, sent messages or home-line data can trigger charges.
10. Does One NZ roaming work on a cruise ship or aircraft?
Daily Roaming and Data Angel do not cover maritime or in-flight networks. One NZ says mobile data is not offered at sea. Ship WiFi or a specifically documented onboard service is separate from normal destination coverage.
Sources and updates
We checked One NZ's change notice, Daily Roaming page, Data Angel product page, Prepay page, maritime guidance and legal terms on August 12, 2026. The key facts above come from those first-party pages. New Zealand Commerce Commission guidance was used for the background-data warning.
We also reviewed the pages ranking around searches such as "One NZ roaming charges," "One NZ Daily Roaming" and "Data Angel Overseas." Some independent guides still show earlier NZ$8 or NZ$9 daily prices, while One NZ currently publishes NZ$10. The official carrier page takes priority for the current fee.
Update policy: We will revise this story when One NZ changes the affected-account scope, Daily Roaming fee, destinations, Data Angel allowances, Prepay position, trigger rules or maritime terms. Roaming eSIM catalog availability was checked on August 12 and remains live at checkout.
