These prices were checked on 15 October 2026, more than 30 days ago. Check the provider's page before you buy.
iiNet · Prepaid · Vodafone network
iiNet Large Plan 100GB
$22.50 a month to start, then $45, 100GB a month. Nothing we track with as much data costs less in the first year.
- First year
- $405
- Two years
- $945
- Average a month
- $34
- Per GB, year one
- $0.34
Year two: $540 ($135 more)
- eSIM
- 5G
- No lock-in
- Stops when data runs out
How it compares
- Ranks 8 of 52 for first-year cost among plans with 50GB to 150GB a month.
- $0.34 a GB in year one: 31% below the median of $0.49 for similar plans.
- No plan we track with at least as much data costs less in year one.
- The cheapest postpaid plan with at least as much data is E.Tel 120GB, $74 more over the first year.
Worth knowing
- Price cliff: year two costs $135 more, going from $405 to $540.
The deal
50% off for 6 months
New connections only. $22.50 a month for the first 6 months, then $45 a month. Available until withdrawn.
When the deal ends, the plan carries on at $45 a month. Set a reminder and we'll email you two weeks before.
What you get
- Data
- 100GB a month. Data stops until you recharge or buy more.
- Calls and texts
- Unlimited standard national calls, SMS and MMS
- Overseas calls
- Unlimited calls to selected countries. Unlimited standard minutes and SMS to 31 selected countries
- Roaming
- Not included in the plan
- Renews
- Prepaid recharge a month
- Features
- 5G, eSIM, No lock-in
- Extras (not counted in the price)
- Extra data: $10 for 2GB, taken from a prepaid balance you add (minimum top-up $10)
Download speeds are capped at 250Mbps.
If the monthly data runs out and there is no prepaid balance, mobile data is unavailable until the next billing cycle.
Medium and Large cost $5 a month less with a linked iiNet internet plan; we don't count that.
Plans with similar data
Plans with 50GB to 150GB a month, cheapest first year first.
| # | Plan | Data a month | First year | Two years |
|---|---|---|---|---|
| 1 | TPG50GB | 50GB | $315 | $735 |
| 2 | iiNet50GB | 50GB | $315 | $735 |
| 3 | Pivotel50GB | 50GB | $315 | $735 |
| 4 | Lyca MobileS 50GB | 54GB | $330 | $720 |
| 5 | Tangerine50GB | 50GB | $360 | $792 |
| 6 | Moose Mobile50GB | 50GB | $360 | $720 |
| 7 | iiNet100GB | 100GB | $405 | $945 |
Head to head
Your first year, payment by payment
12 payments in your first year, 6 with the deal price. That adds up to $405, which is $135 less than paying full price all year ($540).
| Payment | Day | You pay | Data |
|---|---|---|---|
| 1 | 0 | $22.50 (deal) | 100GB |
| 2 | 30 | $22.50 (deal) | 100GB |
| 3 | 61 | $22.50 (deal) | 100GB |
| 4 | 91 | $22.50 (deal) | 100GB |
| 5 | 122 | $22.50 (deal) | 100GB |
| 6 | 152 | $22.50 (deal) | 100GB |
| 7 | 183 | $45 | 100GB |
| 8 | 213 | $45 | 100GB |
| 9 | 243 | $45 | 100GB |
| 10 | 274 | $45 | 100GB |
| 11 | 304 | $45 | 100GB |
| 12 | 335 | $45 | 100GB |
When the data runs out
When the 100GB runs out, mobile data stops until the plan renews or you buy more. You are never charged extra, but you can be left without data late in the month. Whether unused data carries over is not recorded for this plan, so check the Critical Information Summary.
Is it good value?
- Year one works out at $0.34 a GB, the 17th cheapest of the 115 plans we track.
- Most of the saving comes from the deal: without it, the first year would cost $540.
- There is no lock-in contract, so you can leave when a cheaper plan turns up.
- Unlimited standard minutes and SMS to 31 selected countries.
Questions people ask
What network does iiNet 100GB use?
iiNet uses the Vodafone network. It rents capacity from Vodafone, so coverage follows Vodafone's towers. Check Vodafone's coverage map for your street.
What happens when the deal ends?
New connections only. $22.50 a month for the first 6 months, then $45 a month. Available until withdrawn. After that the plan costs $45 a month.
Can I use it overseas?
Not included in the plan.
Is there a contract?
No. It has no lock-in contract. It renews when you recharge.
How was this checked?
On 14 October 2026, from iiNet's own pages. Prices older than 30 days are hidden from the comparison. We are not paid by providers to rank them.
Sources
Checked 14 October 2026 on iiNet's own pages: iiNet SIM-only mobile plans · Critical Information Summary: iiNet SIM Only Mobile Plans. Always read the Critical Information Summary before you buy.