Pay monthly plan from Mercury Mobile

Mercury Mobile 1.25GB Rollover Data

Pay monthlySpark networkRollover

Best for: Light use, Mercury power customers

Plan details

Plan typePay monthly
Price$19 per month
Data1.25GB/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 calls250 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 $19 a month, it costs less than 88% of the 111 plans we compare.
  • Of the 6 plans with similar data (1GB to 1.4GB a month), it's number 6 on price. They range from $14.12 to $19 a month.
  • That works out at $15.20 per GB, more than the typical plan ($5.65 per GB).
  • Over a year that's $228.
  • Need more? Mercury Mobile's 2.5GB Rollover Data gives 2.5GB/mo for $10 more 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: 250 NZ minutes are included

SmartScore

6.2/10

4.1 value + 2.1 features = 6.2 out of 10

Value for money

4.1 / 6

This plan works out at $19.00 a month. The cheapest plan with at least as much data (about 1.3GB a month) is Contact Energy mobile Extra Small (2GB Carryover) at $16.00. This plan costs 19% more, so it loses 1.9 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: Contact Energy mobile Extra Small (2GB Carryover) gives you 2GB/mo for $16.00 a month. That’s $36 a year less than this plan.

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