One NZ vs Gecko Mobile
Gecko Mobile wins 2 of 3 usage types on value. One NZ has the cheaper entry-level plan. Gecko Mobile has the highest-scoring plan for value and features. One NZ uses the One NZ network and Gecko Mobile uses Spark, so check coverage where you live and work.
Prices checked 12 October 2026
| Feature | One NZ | Gecko Mobile |
|---|---|---|
| Network | One NZ | Spark |
| Plans listed | 11 | 3 |
| Cheapest plan (per month) | $10.00 | $39.00 |
| Cheapest unlimited | $88.00 | None |
| Best SmartScore | 7.4 | 8.8 |
| Prepay plans | Yes | No |
| Pay monthly plans | Yes | Yes |
| eSIM | Yes | Yes |
| 5G | Yes | Yes |
| WiFi calling | Yes | – |
Which should you choose?
Light use
Under 5GB: messaging, maps, a bit of social
- One NZBetter value
- Rollover Large3GB/mo · $30/mo · 7.4/10
- Gecko Mobile
- No plan in this range
Only One NZ has a plan in this range: Rollover Large (3GB/mo, $30/mo).
Everyday use
5GB to 40GB: streaming music, social and some video
- One NZ
- Endless Starter6GB/mo + endless · $50/mo · 6.1/10
- Gecko MobileBetter value
- Mobile1010GB/mo + endless · $39/mo · 8.8/10
Gecko Mobile's Mobile10 (10GB/mo + endless, $39/mo) costs less than One NZ's Endless Starter (6GB/mo + endless, $50/mo) and scores higher.
Heavy use
40GB+ or unlimited: lots of video, hotspotting
- One NZ
- Unlimited PrepayUnlimited · $88/mo · 6.4/10
- Gecko MobileBetter value
- Mobile100100GB/mo + endless · $49/mo · 6.6/10
Gecko Mobile's Mobile100 (100GB/mo + endless, $49/mo) costs less than One NZ's Unlimited Prepay (Unlimited, $88/mo) and scores higher.
Choose One NZ if…
- You want the better plan for light use
- You want the cheapest way in (from $10/mo)
- You want prepay, with no bill or credit check
- You want unused data to roll over
- One NZ coverage is better where you live
Choose Gecko Mobile if…
- You want the better plan for everyday and heavy use
- Spark coverage is better where you live
Every One NZ and Gecko Mobile plan
| Plan | Calls | ? | ? | Actions | |
|---|---|---|---|---|---|
Gecko MobileMobile10 | 10GB/mo + endless | Unlimited | $39/moPaid monthly | 8.8/10 | View deal |
One NZRollover Large | 3GB/moRollover | Unlimited | $30/moPaid monthly | 7.4/10 | View deal |
One NZRollover Small | 1GB/moRollover | Unlimited | $18/moPaid monthly | 7.3/10 | View deal |
One NZStarter Prepay | 250MB/mo | 100 mins | $10/moPaid monthly | 7.0/10 | View deal |
Gecko MobileMobile100 | 100GB/mo + endless | Unlimited | $49/moPaid monthly | 6.6/10 | View deal |
One NZUnlimited Prepay | Unlimited | Unlimited | $88/moPaid monthly | 6.4/10 | View deal |
One NZOne Plan | Unlimited | Unlimited | $88/moPaid monthly | 6.4/10 | View deal |
One NZEndless Starter | 6GB/mo + endless | Unlimited | $50/moPaid monthly | 6.1/10 | View deal |
One NZEndless Starter | 6GB/mo + endless | Unlimited | $50/moPaid monthly | 6.1/10 | View deal |
One NZRollover Medium | 2GB/moRollover | Unlimited | $23/moPaid monthly | 5.6/10 | View deal |
One NZLite Plan | 3GB/mo | Unlimited | $40/moPaid monthly | 3.3/10 | View deal |
One NZEndless Plus | 50GB/mo + endless | Unlimited | $73/moPaid monthly | 3.3/10 | View deal |
One NZEndless Plus | 50GB/mo + endless | Unlimited | $73/moPaid monthly | 3.3/10 | View deal |
Gecko MobileMobile1000 | 1000GB/mo + endless | Unlimited | $69/moPaid monthly | 2.8/10 | View deal |
Frequently asked questions
Which is better, One NZ or Gecko Mobile?
Gecko Mobile wins 2 of 3 usage types on value. One NZ has the cheaper entry-level plan. Gecko Mobile has the highest-scoring plan for value and features. One NZ uses the One NZ network and Gecko Mobile uses Spark, so check coverage where you live and work. Light use: Only One NZ has a plan in this range: Rollover Large (3GB/mo, $30/mo). Everyday use: Gecko Mobile's Mobile10 (10GB/mo + endless, $39/mo) costs less than One NZ's Endless Starter (6GB/mo + endless, $50/mo) and scores higher. Heavy use: Gecko Mobile's Mobile100 (100GB/mo + endless, $49/mo) costs less than One NZ's Unlimited Prepay (Unlimited, $88/mo) and scores higher.
Is One NZ or Gecko Mobile cheaper?
One NZ’s cheapest plan is Starter Prepay (250MB/mo) at $10.00 a month. Gecko Mobile’s cheapest is Mobile10 (10GB/mo + endless) at $39.00 a month.
Do One NZ and Gecko Mobile use the same network?
No. One NZ uses One NZ and Gecko Mobile uses Spark.
Can I switch from One NZ to Gecko Mobile and keep my number?
Yes. Sign up with Gecko Mobile and ask to transfer your number. They’ll handle the switch, and you don’t need to cancel with One NZ first.