One NZ vs Spark
One NZ wins 2 of 3 usage types on value. One NZ has the cheaper entry-level plan. Spark has the highest-scoring plan for value and features. One NZ uses the One NZ network and Spark uses Spark, so check coverage where you live and work.
Prices checked 12 October 2026
| Feature | One NZ | Spark |
|---|---|---|
| Network | One NZ | Spark |
| Plans listed | 11 | 12 |
| Cheapest plan (per month) | $10.00 | $18.00 |
| Cheapest unlimited | $88.00 | $90.00 |
| Best SmartScore | 7.4 | 7.5 |
| Prepay plans | Yes | Yes |
| 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
- SparkBetter value
- $28 Value Pack3GB/mo · $28/mo · 7.5/10
Spark's $28 Value Pack (3GB/mo, $28/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 NZBetter value
- Endless Starter6GB/mo + endless · $50/mo · 6.1/10
- Spark
- 8GB Endless Plan8GB/mo + endless · $55/mo · 5.2/10
One NZ's Endless Starter (6GB/mo + endless, $50/mo) costs less than Spark's 8GB Endless Plan (8GB/mo + endless, $55/mo) and scores higher.
Heavy use
40GB+ or unlimited: lots of video, hotspotting
- One NZBetter value
- Unlimited PrepayUnlimited · $88/mo · 6.4/10
- Spark
- $90 Unlimited Value PackUnlimited · $90/mo · 6.1/10
One NZ's Unlimited Prepay (Unlimited, $88/mo) costs less than Spark's $90 Unlimited Value Pack (Unlimited, $90/mo) and scores higher.
Choose One NZ if…
- You want the better plan for everyday and heavy use
- You want the cheapest way in (from $10/mo)
- One NZ coverage is better where you live
Choose Spark if…
- You want the better plan for light use
- Spark coverage is better where you live
Every One NZ and Spark plan
| Plan | Calls | ? | ? | Actions | |
|---|---|---|---|---|---|
Spark$28 Value Pack | 3GB/moRollover | 300 mins | $28/moPaid monthly | 7.5/10 | 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 |
Spark$18 Value Pack | 1GB/moRollover | 100 mins | $18/moPaid monthly | 6.5/10 | 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 |
| Unlimited | Unlimited | $90/moPaid monthly | 6.1/10 | View deal | |
One NZRollover Medium | 2GB/moRollover | Unlimited | $23/moPaid monthly | 5.6/10 | View deal |
SparkUnlimited Data Plan | Unlimited | Unlimited | $95/moPaid monthly | 5.3/10 | View deal |
Spark8GB Endless Plan | 8GB/mo + endless | Unlimited | $55/moPaid monthly | 5.2/10 | View deal |
| 20GB/moRollover | Unlimited | $60/moPaid monthly | 5.0/10 | View deal | |
Spark$23 Value Pack | 2GB/moRollover | 200 mins | $23/moPaid monthly | 4.8/10 | View deal |
| Unlimited | Unlimited | $100/moPaid monthly | 4.6/10 | View deal | |
| 4.5GB/moRollover | Unlimited | $40/moPaid monthly | 4.0/10 | View deal | |
Spark4GB Rollover Plan | 4GB/moRollover | Unlimited | $45/moPaid monthly | 4.0/10 | View deal |
One NZLite Plan | 3GB/mo | Unlimited | $40/moPaid monthly | 3.3/10 | View deal |
Spark75GB Endless Plan | 75GB/mo + endless | Unlimited | $68/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 |
Spark150GB Endless Plan | 150GB/mo + endless | Unlimited | $78/moPaid monthly | 3.3/10 | View deal |
Frequently asked questions
Which is better, One NZ or Spark?
One NZ wins 2 of 3 usage types on value. One NZ has the cheaper entry-level plan. Spark has the highest-scoring plan for value and features. One NZ uses the One NZ network and Spark uses Spark, so check coverage where you live and work. Light use: Spark's $28 Value Pack (3GB/mo, $28/mo) costs less than One NZ's Rollover Large (3GB/mo, $30/mo) and scores higher. Everyday use: One NZ's Endless Starter (6GB/mo + endless, $50/mo) costs less than Spark's 8GB Endless Plan (8GB/mo + endless, $55/mo) and scores higher. Heavy use: One NZ's Unlimited Prepay (Unlimited, $88/mo) costs less than Spark's $90 Unlimited Value Pack (Unlimited, $90/mo) and scores higher.
Is One NZ or Spark cheaper?
One NZ’s cheapest plan is Starter Prepay (250MB/mo) at $10.00 a month. Spark’s cheapest is $18 Value Pack (1GB/mo) at $18.00 a month.
Do One NZ and Spark use the same network?
No. One NZ uses One NZ and Spark uses Spark.
Can I switch from One NZ to Spark and keep my number?
Yes. Sign up with Spark and ask to transfer your number. They’ll handle the switch, and you don’t need to cancel with One NZ first.