One NZ vs Contact Energy mobile
Contact Energy mobile wins 2 of 3 usage types on value. One NZ has the cheaper entry-level plan. Contact Energy 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 | Contact Energy mobile |
|---|---|---|
| Network | One NZ | One NZ |
| Plans listed | 11 | 4 |
| Cheapest plan (per month) | $10.00 | $16.00 |
| Cheapest unlimited | $88.00 | None |
| Best SmartScore | 7.4 | 9.2 |
| Prepay plans | Yes | No |
| Pay monthly plans | Yes | Yes |
| 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 NZ
- Rollover Large3GB/mo · $30/mo · 7.4/10
- Contact Energy mobileBetter value
- Extra Small (2GB Carryover)2GB/mo · $16/mo · 9.2/10
Contact Energy mobile's Extra Small (2GB Carryover) (2GB/mo, $16/mo) costs less than One NZ's Rollover Large (3GB/mo, $30/mo) and scores higher.
Everyday use
5GB to 40GB: streaming music, social and some video
- One NZ
- Endless Starter6GB/mo + endless · $50/mo · 6.1/10
- Contact Energy mobileBetter value
- Medium (Endless)20GB/mo + endless · $45/mo · 8.1/10
Contact Energy mobile's Medium (Endless) (20GB/mo + endless, $45/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 NZBetter value
- Unlimited PrepayUnlimited · $88/mo · 6.4/10
- Contact Energy mobile
- Large (Endless)75GB/mo + endless · $60/mo · 4.3/10
One NZ's Unlimited Prepay (Unlimited, $88/mo) costs more than Contact Energy mobile's Large (Endless) (75GB/mo + endless, $60/mo), but scores higher (6.4 vs 4.3) for what you get.
Choose One NZ if…
- You want the better plan for heavy use
- You want the cheapest way in (from $10/mo)
- You want prepay, with no bill or credit check
Choose Contact Energy mobile if…
- You want the better plan for light and everyday use
Every One NZ and Contact Energy mobile plan
| Plan | Calls | ? | ? | Actions | |
|---|---|---|---|---|---|
Contact Energy mobileExtra Small (2GB Carryover) | 2GB/moRollover | 200 mins | $16/moPaid monthly | 9.2/10 | View deal |
Contact Energy mobileMedium (Endless) | 20GB/mo + endless | Unlimited | $45/moPaid monthly | 8.1/10 | 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 |
Contact Energy mobileSmall (Endless) | 5GB/mo + endless | Unlimited | $35/moPaid monthly | 5.3/10 | View deal |
Contact Energy mobileLarge (Endless) | 75GB/mo + endless | Unlimited | $60/moPaid monthly | 4.3/10 | 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 Contact Energy mobile?
Contact Energy mobile wins 2 of 3 usage types on value. One NZ has the cheaper entry-level plan. Contact Energy mobile has the highest-scoring plan for value and features. Both use the One NZ network, so coverage is similar. Light use: Contact Energy mobile's Extra Small (2GB Carryover) (2GB/mo, $16/mo) costs less than One NZ's Rollover Large (3GB/mo, $30/mo) and scores higher. Everyday use: Contact Energy mobile's Medium (Endless) (20GB/mo + endless, $45/mo) costs less than One NZ's Endless Starter (6GB/mo + endless, $50/mo) and scores higher. Heavy use: One NZ's Unlimited Prepay (Unlimited, $88/mo) costs more than Contact Energy mobile's Large (Endless) (75GB/mo + endless, $60/mo), but scores higher (6.4 vs 4.3) for what you get.
Is One NZ or Contact Energy mobile cheaper?
One NZ’s cheapest plan is Starter Prepay (250MB/mo) at $10.00 a month. Contact Energy mobile’s cheapest is Extra Small (2GB Carryover) (2GB/mo) at $16.00 a month.
Do One NZ and Contact Energy mobile use the same network?
Yes, both use the One NZ network.
Can I switch from One NZ to Contact Energy mobile and keep my number?
Yes. Sign up with Contact Energy mobile and ask to transfer your number. They’ll handle the switch, and you don’t need to cancel with One NZ first.