Pay monthly plan from Mercury Mobile

Mercury Mobile 2.5GB Rollover Data

Pay monthlySpark networkRollover

Best for: Light use, Mercury power customers

Plan details

Plan typePay monthly
Price$29 per month
Data2.5GB/mo
Data details$5 100MB Data Auto Allowance applied when data runs out (opt-out in app).
Data rolloverUnused data rolls over up to 12 months; minutes do not roll over.
NZ calls350 mins
NZ textsUnlimited
Calls to AustraliaYes
ContractNo fixed term
Who can get itOnly available with a Mercury power or broadband account
NetworkSpark network
5GNot stated
eSIMNot stated
Hotspot / tetheringYes
ExtrasFree Mercury-to-Mercury calling

Last checked 12 October 2026. See it on Mercury Mobile’s website

How it compares

  • At $29 a month, it costs less than 75% of the 111 plans we compare.
  • Of the 14 plans with similar data (2GB to 3GB a month), it's number 11 on price. They range from $16 to $40 a month.
  • That works out at $11.60 per GB, more than the typical plan ($5.65 per GB).
  • Over a year that's $348.
  • Need more? Mercury Mobile's 5GB Endless+ Data gives 5GB/mo + endless for $10 more a month.
  • Need less? 1.25GB Rollover Data has 1.25GB/mo and saves $10 a month.

Who it suits

  • Light users: messaging, maps, a bit of social
  • People whose usage varies month to month, since unused data rolls over
  • Light callers: 350 NZ minutes are included

SmartScore

6.0/10

3.9 value + 2.1 features = 6.0 out of 10

Value for money

3.9 / 6

This plan works out at $29.00 a month. The cheapest plan with at least as much data (about 2.5GB a month) is Skinny $22 Plan (3GB Rollover Data) at $23.90. This plan costs 21% more, so it loses 2.1 points (1 for every 10%).

Features

2.1 / 4
  • Unlimited NZ calls · No0 of 0.8
  • Data rollover+0.7
  • No fixed term+0.6
  • 5G access · Not stated0 of 0.6
  • eSIM support · Not stated0 of 0.5
  • Hotspot/tethering allowed+0.5
  • Calls to Australia included+0.3

Unlimited plans at 10Mbps or faster count as more data than any allowance. Plans you pay a year upfront are only compared with each other, and no plan is compared with one that needs another service. Commissions never affect scores. How the SmartScore works

💡 Save money: Skinny $22 Plan (3GB Rollover Data) gives you 3GB/28 days for $23.90 a month. That’s $61 a year less than this plan.

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