These prices were checked on 14 October 2026, more than 30 days ago. Check the provider's page before you buy.
Belong · Postpaid SIM-only · Telstra network
Belong 100GB SIM only plan
$49 a month, 100GB a month. Nothing we track with as much data costs less in the first year.
- First year
- $588
- Two years
- $1,176
- Average a month
- $49
- Per GB, year one
- $0.31
Same price in year two
The deal
60GB bonus data for 12 months (160GB a month) · sign up by 4 November 2026
Activate by 4 November 2026. New services and plan upgrades only. Plan price may change. Can't be used with Belong's $80 credit SIMs. After 12 months the plan goes back to 100GB a month.
When the deal ends, the plan carries on at $49 a month. Set a reminder and we'll email you two weeks before.
What you get
- Data
- 100GB a month, 160GB during the deal. Slowed to 1Mbps, never charged.
- Calls and texts
- Unlimited standard national calls and texts, with voicemail
- Overseas calls
- No overseas calls included. Not included. Calls and texts to selected destinations can be added for $5 a month
- Roaming
- Optional International Roaming pack for selected destinations (details at belong.com.au/go/international-roaming)
- Renews
- Postpaid bill a month
- Features
- 5G, eSIM, No lock-in
- Extras (not counted in the price)
- Data banking: unused data carries over, with no limit
- Data gifting to other Belong customers, up to 5 times a month
- 5G and 4G speeds capped at 150Mbps
- Extra data: 5GB for $10
Plans with similar data
Plans with 50GB to 150GB a month, cheapest first year first.
| # | Plan | Data a month | First year | Two years |
|---|---|---|---|---|
| 1 | felix50GB | 50GB | $420 | $840 |
| 2 | OnePass65GB 28-day | 71GB | $440 | $960 |
| 3 | OptusSmall | 60GB | $468 | $1,188 |
| 4 | MateBest 60GB | 60GB | $504 | $1,008 |
| 5 | ALDI Mobile$39 75GB | 76GB | $507 | $975 |
| 6 | Belong100GB | 100GB | $588 | $1,176 |
Head to head
Your first year, payment by payment
12 payments in your first year, 12 with the bonus data. That adds up to $588.
| Payment | Day | You pay | Data |
|---|---|---|---|
| 1 | 0 | $49 | 160GB (bonus) |
| 2 | 30 | $49 | 160GB (bonus) |
| 3 | 61 | $49 | 160GB (bonus) |
| 4 | 91 | $49 | 160GB (bonus) |
| 5 | 122 | $49 | 160GB (bonus) |
| 6 | 152 | $49 | 160GB (bonus) |
| 7 | 183 | $49 | 160GB (bonus) |
| 8 | 213 | $49 | 160GB (bonus) |
| 9 | 243 | $49 | 160GB (bonus) |
| 10 | 274 | $49 | 160GB (bonus) |
| 11 | 304 | $49 | 160GB (bonus) |
| 12 | 335 | $49 | 160GB (bonus) |
When the data runs out
When the 100GB runs out, you're slowed to 1Mbps instead of being cut off or charged. That is enough for messages and maps, but slow for video. Data banking: unused data carries over, with no limit.
Is it good value?
- Year one works out at $0.31 a GB, the 5th cheapest of the 27 plans we track.
- The deal adds bonus data and does not change the price.
- There is no lock-in contract, so you can leave when a cheaper plan turns up.
- It does not include overseas calls.
Questions people ask
What network does Belong 100GB use?
Belong 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?
Activate by 4 November 2026. New services and plan upgrades only. Plan price may change. Can't be used with Belong's $80 credit SIMs. After 12 months the plan goes back to 100GB a month. After that the plan costs $49 a month.
Can I use it overseas?
Optional International Roaming pack for selected destinations (details at belong.com.au/go/international-roaming).
Is there a contract?
No. It has no lock-in contract. It renews on your monthly bill.
How was this checked?
On 14 October 2026, from Belong'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 Belong's own pages: Belong mobile plans · Critical Information Summary. Always read the Critical Information Summary before you buy.