One NZ vs Mighty Mobile
Mighty Mobile wins 2 of 3 usage types on value. One NZ has the cheaper entry-level plan. Mighty Mobile has the highest-scoring plan for value and features. Both use the One NZ network, so coverage is similar.
Prices checked 12 October 2026
| Feature | One NZ | Mighty Mobile |
|---|---|---|
| Network | One NZ | One NZ |
| Plans listed | 11 | 7 |
| Cheapest plan (per month) | $10.00 | $25.00 |
| Cheapest unlimited | $88.00 | $33.25 |
| Best SmartScore | 7.4 | 9.3 |
| Prepay plans | Yes | Yes |
| Pay monthly plans | Yes | No |
| eSIM | Yes | Yes |
| 5G | Yes | Yes |
| WiFi calling | Yes | 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
- Mighty 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
- Mighty MobileBetter value
- Starter Plan5GB/mo · $25/mo · 9.3/10
Mighty Mobile's Starter Plan (5GB/mo, $25/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
- Mighty MobileBetter value
- Fast PlanUnlimited (10Mbps) · $40/mo · 9.3/10
Mighty Mobile's Fast Plan (Unlimited (10Mbps), $40/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 prefer a monthly bill
- You want unused data to roll over
- You want data that slows down instead of running out
Choose Mighty Mobile if…
- You want the better plan for everyday and heavy use
- You want to pay once for the whole year
Every One NZ and Mighty Mobile plan
| Plan | Calls | ? | ? | Actions | |
|---|---|---|---|---|---|
Mighty MobileStarter Plan | 5GB/mo | Unlimited | $25/moPaid monthly | 9.3/10 | View deal |
Mighty MobileFast Plan 365 Days | Unlimited (10Mbps) | Unlimited | $33.25/moPaid as $399 once a year | 9.3/10 | View deal |
Mighty MobileFast Plan | Unlimited (10Mbps) | Unlimited | $40/moPaid monthly | 9.3/10 | View deal |
Mighty MobileFaster Plan 365 Days | Unlimited (50Mbps) | Unlimited | $41.58/moPaid as $499 once a year | 9.3/10 | View deal |
Mighty MobileFaster Plan | Unlimited (50Mbps) | Unlimited | $50/moPaid monthly | 9.3/10 | View deal |
Mighty MobileFastest Plan 365 Days | Unlimited | Unlimited | $62.42/moPaid as $749 once a year | 9.3/10 | View deal |
Mighty MobileFastest Plan | Unlimited | Unlimited | $75/moPaid monthly | 8.3/10 | 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 |
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 |
Frequently asked questions
Which is better, One NZ or Mighty Mobile?
Mighty Mobile wins 2 of 3 usage types on value. One NZ has the cheaper entry-level plan. Mighty Mobile has the highest-scoring plan for value and features. Both use the One NZ network, so coverage is similar. Light use: Only One NZ has a plan in this range: Rollover Large (3GB/mo, $30/mo). Everyday use: Mighty Mobile's Starter Plan (5GB/mo, $25/mo) costs less than One NZ's Endless Starter (6GB/mo + endless, $50/mo) and scores higher. Heavy use: Mighty Mobile's Fast Plan (Unlimited (10Mbps), $40/mo) costs less than One NZ's Unlimited Prepay (Unlimited, $88/mo) and scores higher.
Is One NZ or Mighty Mobile cheaper?
One NZ’s cheapest plan is Starter Prepay (250MB/mo) at $10.00 a month. Mighty Mobile’s cheapest is Starter Plan (5GB/mo) at $25.00 a month.
Do One NZ and Mighty Mobile use the same network?
Yes, both use the One NZ network.
Can I switch from One NZ to Mighty Mobile and keep my number?
Yes. Sign up with Mighty Mobile and ask to transfer your number. They’ll handle the switch, and you don’t need to cancel with One NZ first.