Prepay (Pay as You Go) mobile plans suit light users, people who don’t want a monthly commitment, and anyone managing a tight budget. In NZ, all three networks and their MVNO brands offer prepay options — ranging from basic top-up credit to structured 28-day combo packs.
Cheapest overall: Skinny Mobile — $16/month basic combo
Best data value: 2degrees prepay combos
Best rural coverage prepay: Spark prepay
Best for occasional use: Any basic prepay top-up (Skinny or 2degrees)
How Prepay Works in NZ
Most NZ prepay plans now use combo packs — you buy a 28-day bundle of data, minutes, and texts. When the 28 days expire, you buy another combo. This is different from true pay-as-you-go (where you pay per minute/MB as you use), which is now rare.
Key things to check with prepay combos:
- Does unused data carry over? (Rarely — most combos expire at 28 days)
- What happens if you run out of data mid-combo? (Usually charged at high per-MB rates, or data just stops)
- Can you add extra data? (Most allow top-up packs)
Best Prepay Plans NZ 2026
Skinny Mobile — Best Overall Prepay
Skinny Mobile (Spark MVNO) is the cheapest prepay option on the Spark network.
| Combo | Cost | Data | Calls/Texts | Days |
|---|---|---|---|---|
| Basic Combo | $16 | 1.5GB | Unlimited Skinny + 100 mins other | 28 days |
| $25 Combo | $25 | 5GB | Unlimited NZ calls/texts | 28 days |
| $30 Combo | $30 | 10GB | Unlimited NZ calls/texts | 28 days |
| $40 Combo | $40 | 20GB | Unlimited NZ calls/texts | 28 days |
Why choose Skinny prepay: Cheapest plans in NZ, Spark network (good coverage), simple combo structure.
2degrees — Best Prepay Data Value
2degrees’ prepay combos often offer more data for the same price compared to Spark/Skinny:
| Combo | Cost | Data | Calls/Texts | Days |
|---|---|---|---|---|
| $20 Combo | $20 | 3GB | Unlimited NZ | 28 days |
| $30 Combo | $30 | 8GB | Unlimited NZ | 28 days |
| $45 Combo | $45 | 25GB | Unlimited NZ | 28 days |
Why choose 2degrees prepay: Often more data per dollar than Spark/Skinny. 2degrees network is strong in regional NZ and improving in rural areas.
One NZ — Solid Prepay Option
One NZ’s prepay combos are competitive:
| Combo | Cost | Data | Calls/Texts | Days |
|---|---|---|---|---|
| $20 Combo | $20 | 2–3GB | Unlimited NZ | 28 days |
| $30 Combo | $30 | 5–8GB | Unlimited NZ | 28 days |
| $50 Combo | $50 | 20–30GB | Unlimited NZ | 28 days |
Why choose One NZ prepay: Strong urban and suburban coverage, good for city users.
Spark — Best Rural Coverage Prepay
Spark prepay covers the same network as Skinny but at higher prices. Choose Spark prepay only if you need to buy from a Spark store or you specifically want Spark branding. For the same price, Skinny is the better value (identical network).
| Combo | Cost | Data | Calls/Texts | Days |
|---|---|---|---|---|
| $25 Combo | $25 | 3GB | Unlimited NZ | 28 days |
| $35 Combo | $35 | 8GB | Unlimited NZ | 28 days |
Note: Skinny’s combos use exactly the same Spark network at lower prices. Spark prepay only makes sense for customers buying in-store at a Spark shop.
Prepay vs Monthly SIM-Only: Which Is Cheaper?
For regular users, a monthly SIM-only plan is usually cheaper per GB than prepay combos. The break-even point is roughly:
- Prepay makes sense if you use the phone infrequently (less than 1–2GB/month) or want the flexibility to go without mobile for a month
- Monthly SIM-only is better value if you use your phone regularly and want more data per dollar
For consistent monthly use, compare a monthly Skinny plan vs. Skinny prepay combos at the same data level — the monthly plan often works out cheaper per GB.
Tips for Prepay Users
- Set up auto top-up — Most prepay providers allow automatic combo renewal when your credit runs low. This avoids losing connectivity mid-month
- Track your data — Most provider apps show remaining data. This helps you decide whether to stick with your current combo size or adjust
- Use WiFi where possible — Offloading heavy usage (streaming, downloads) to home WiFi stretches your mobile data allowance
- Consider rolling to monthly — If you’re consistently buying the same $30+ combo each month, a monthly SIM-only plan may offer more data for the same money