Cheapest 5GB Mobile Plans on Telstra
The cheapest 5GB mobile plan on the Telstra network is Boost Mobile 7 Day 8GB (eSIM) by boost-mobile at $60.00/mo.
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Forward your bill3 Plans — sorted by price
Showing plans with 5–8GB data on the Telstra network. Postpaid and prepaid only.
Prices validated: 24 June 2026
| Carrier | Plan | Data | Type | 5G | $/mo | Actions | |
|---|---|---|---|---|---|---|---|
 | Boost Mobile 7 Day 8GB (eSIM) | 6GB | Prepaid | Yes | $60.00 | Visit boost-mobile | |
| Boost Mobile International Roaming Large | 7GB | Prepaid | No | $85.71 | Visit boost-mobile | |
| Boost Mobile International Roaming Medium | 5GB | Prepaid | No | $128.57 | Visit boost-mobile |
Bill Hero is an independent comparison service. We are paid by subscribers and concierge fees, not by carriers or retailers.
Frequently Asked Questions
What is the cheapest 5GB mobile plan on the Telstra network?▾
Boost Mobile 7 Day 8GB (eSIM) by boost-mobile at $60.00/mo is currently the cheapest 5GB plan on the Telstra network. Prices are updated daily.
Should I choose postpaid or prepaid for a 5GB plan?▾
Postpaid plans typically include handset financing options and are billed monthly. Prepaid plans are pay-as-you-go — better for flexibility and no credit checks. Both are shown in the table above.
How often are mobile plan prices updated?▾
Bill Hero checks mobile plan data daily. All plans shown were validated within the last 24 hours. See the "Prices validated" date above the table for the most recent check.
Can I switch mobile plans without changing my number?▾
Yes. Mobile number portability (MNP) lets you keep your number when switching carriers or networks. The process usually takes 1–2 business days.
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