Spark vs Mighty Mobile
Mighty Mobile wins 2 of 3 usage types on value. Spark has the cheaper entry-level plan. Mighty Mobile has the highest-scoring plan for value and features. Spark uses the Spark network and Mighty Mobile uses One NZ, so check coverage where you live and work.
Prices checked 12 October 2026
| Feature | Spark | Mighty Mobile |
|---|---|---|
| Network | Spark | One NZ |
| Plans listed | 12 | 7 |
| Cheapest plan (per month) | $18.00 | $25.00 |
| Cheapest unlimited | $90.00 | $33.25 |
| Best SmartScore | 7.5 | 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
- SparkBetter value
- $28 Value Pack3GB/mo · $28/mo · 7.5/10
- Mighty Mobile
- No plan in this range
Only Spark has a plan in this range: $28 Value Pack (3GB/mo, $28/mo).
Everyday use
5GB to 40GB: streaming music, social and some video
- Spark
- 8GB Endless Plan8GB/mo + endless · $55/mo · 5.2/10
- Mighty MobileBetter value
- Starter Plan5GB/mo · $25/mo · 9.3/10
Mighty Mobile's Starter Plan (5GB/mo, $25/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
- Spark
- $90 Unlimited Value PackUnlimited · $90/mo · 6.1/10
- Mighty MobileBetter value
- Fast PlanUnlimited (10Mbps) · $40/mo · 9.3/10
Mighty Mobile's Fast Plan (Unlimited (10Mbps), $40/mo) costs less than Spark's $90 Unlimited Value Pack (Unlimited, $90/mo) and scores higher.
Choose Spark if…
- You want the better plan for light use
- You want the cheapest way in (from $18/mo)
- You prefer a monthly bill
- You want unused data to roll over
- You want data that slows down instead of running out
- Spark coverage is better where you live
Choose Mighty Mobile if…
- You want the better plan for everyday and heavy use
- You want to pay once for the whole year
- One NZ coverage is better where you live
Every Spark 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 |
Spark$28 Value Pack | 3GB/moRollover | 300 mins | $28/moPaid monthly | 7.5/10 | View deal |
Spark$18 Value Pack | 1GB/moRollover | 100 mins | $18/moPaid monthly | 6.5/10 | View deal |
| Unlimited | Unlimited | $90/moPaid monthly | 6.1/10 | 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 |
Spark75GB Endless Plan | 75GB/mo + endless | Unlimited | $68/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, Spark or Mighty Mobile?
Mighty Mobile wins 2 of 3 usage types on value. Spark has the cheaper entry-level plan. Mighty Mobile has the highest-scoring plan for value and features. Spark uses the Spark network and Mighty Mobile uses One NZ, so check coverage where you live and work. Light use: Only Spark has a plan in this range: $28 Value Pack (3GB/mo, $28/mo). Everyday use: Mighty Mobile's Starter Plan (5GB/mo, $25/mo) costs less than Spark's 8GB Endless Plan (8GB/mo + endless, $55/mo) and scores higher. Heavy use: Mighty Mobile's Fast Plan (Unlimited (10Mbps), $40/mo) costs less than Spark's $90 Unlimited Value Pack (Unlimited, $90/mo) and scores higher.
Is Spark or Mighty Mobile cheaper?
Spark’s cheapest plan is $18 Value Pack (1GB/mo) at $18.00 a month. Mighty Mobile’s cheapest is Starter Plan (5GB/mo) at $25.00 a month.
Do Spark and Mighty Mobile use the same network?
No. Spark uses Spark and Mighty Mobile uses One NZ.
Can I switch from Spark 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 Spark first.