These prices were checked on 15 October 2026, more than 30 days ago. Check the provider's page before you buy.
Boost Mobile · Prepaid · Telstra network
Boost Mobile 28 day $74 prepaid
$74 every 28 days, 109GB a month. Nothing we track with as much data costs less in the first year.
- First year
- $1,036
- Two years
- $1,998
- Average a month
- $86
- Per GB, year one
- $0.74
Year two: about $965 ($71 less: year one has 14 recharges)
- 5G
- No lock-in
- Stops when data runs out
How it compares
- Ranks 50 of 50 for first-year cost among plans with 54GB to 163GB a month.
- $0.74 a GB in year one: 64% above the median of $0.45 for similar plans.
- 16 plans with at least as much data cost less in year one. The cheapest is E.Tel 120GB, $557 less.
Worth knowing
- This plan carries a note that a detail wasn't stated or couldn't be read (for example what happens when data runs out), so check the provider's page before you buy.
What you get
- Data
- 100GB every 28 days. Data stops until you recharge or buy more.
- Calls and texts
- Unlimited standard calls and SMS to standard Australian numbers, plus unlimited calls to domestic satellite numbers
- Overseas calls
- Some overseas minutes included. Unlimited standard calls to 20 selected countries (e.g. UK, USA, NZ, India, China), plus minutes to 30 more and 300 international texts
- Roaming
- Not included. An International Roaming Pack is needed overseas
- Renews
- Prepaid recharge every 28 days
- Features
- 5G, No lock-in
- Extras (not counted in the price)
- uncapped download speed cap
- Unused data rolls over if you recharge before expiry
- 5G non-standalone only (no 5G SA)
The Critical Information Summary (5 May 2026) does not say what happens when the data runs out, so it is treated as stopping until the next recharge; check before relying on it.
Price comes from the Critical Information Summary: Boost's plans page needs a login redirect and could not be read as text, so these plans are not checked automatically yet.
Sale prices and bonus data shown on the plans page are not counted.
Plans with similar data
Plans with 54GB to 163GB a month, cheapest first year first.
| # | Plan | Data a month | First year | Two years |
|---|---|---|---|---|
| 1 | Lyca MobileS 50GB | 54GB | $330 | $720 |
| 2 | E.Tel55GB | 55GB | $371 | $742 |
| 3 | TPG100GB | 100GB | $405 | $945 |
| 4 | iiNet100GB | 100GB | $405 | $945 |
| 5 | Pivotel80GB | 80GB | $405 | $945 |
| 6 | Tangerine75GB | 75GB | $420 | $924 |
| 7 | Boost Mobile100GB | 109GB | $1,036 | $1,998 |
Head to head
Your first year, payment by payment
14 payments in your first year, all at the standard price. That adds up to $1,036.
| Payment | Day | You pay | Data |
|---|---|---|---|
| 1 | 0 | $74 | 100GB |
| 2 | 28 | $74 | 100GB |
| 3 | 56 | $74 | 100GB |
| 4 | 84 | $74 | 100GB |
| 5 | 112 | $74 | 100GB |
| 6 | 140 | $74 | 100GB |
| 7 | 168 | $74 | 100GB |
| 8 | 196 | $74 | 100GB |
| 9 | 224 | $74 | 100GB |
| 10 | 252 | $74 | 100GB |
| 11 | 280 | $74 | 100GB |
| 12 | 308 | $74 | 100GB |
| 13 | 336 | $74 | 100GB |
| 14 | 364 | $74 | 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. Unused data rolls over if you recharge before expiry.
Is it good value?
- Year one works out at $0.74 a GB, the 76th cheapest of the 115 plans we track.
- The price stays the same all year, so there is no deal to run out.
- There is no lock-in contract, so you can leave when a cheaper plan turns up.
- Unlimited standard calls to 20 selected countries (e.g. UK, USA, NZ, India, China), plus minutes to 30 more and 300 international texts.
Questions people ask
What network does Boost Mobile 100GB use?
Boost Mobile uses the Telstra network. It rents capacity from Telstra, so coverage follows Telstra's towers. Check Telstra's coverage map for your street.
What happens when the deal ends?
There is no deal on this plan right now. It costs $74 every 28 days.
Can I use it overseas?
Not included. An International Roaming Pack is needed overseas.
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 Boost Mobile'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 Boost Mobile's own pages: Boost Mobile prepaid plans · Boost Mobile Critical Information Summary (5 May 2026). Always read the Critical Information Summary before you buy.