Cheapest 80GB Mobile Plans — Any Network
The cheapest 80GB mobile plan across all networks is 100GB Mobile by tangerine at $24.00/mo.
Not sure if it's worth switching?
Forward your current broadband bill to uploads@billhero.com.au — we'll check whether a cheaper plan is available and handle the switch for a $25 success fee.
Forward your bill20 Plans — sorted by price
Showing plans with 80–120GB data across all networks. Postpaid and prepaid only.
| Carrier | Plan | Data | Type | 5G | $/mo | Updated | Actions | |
|---|---|---|---|---|---|---|---|---|
 | 100GB Mobile | 100GB | Postpaid | Yes | $24.00 | Switch — $25 | ||
| 100GB | 100GB | Postpaid | No | $24.00 | Switch — $25 | ||
| 100GB | 100GB | Postpaid | Yes | $24.00 | Switch — $25 | ||
 | $180 Prepaid SIM | 100GB | Prepaid | Yes | $29.03 | Visit boost-mobile | ||
 | 140GB | 90GB | Prepaid | Yes | $29.03 | Visit optus | ||
 | $180 Prepaid Plus | 100GB | Prepaid | Yes | $29.19 | Visit vodafone | ||
 | Medium 80GB | 80GB | Postpaid | Yes | $30.00 | Switch — $25 | ||
 | LycaPlan S | 80GB | Prepaid | Yes | $32.14 | Visit lycamobile | ||
 | $200 Pre-Paid Mobile Plan | 80GB | Prepaid | Yes | $33.33 | Visit telstra | ||
 | 80GB 5G SIM Plan | 80GB | Postpaid | Yes | $34.00 | Switch — $25 | ||
 | Pro | 105GB | Prepaid | No | $34.90 | Visit yomojo | ||
| Pro | 105GB | Prepaid | No | $34.90 | Visit yomojo | ||
 | 100GB | 100GB | Postpaid | Yes | $35.00 | Switch — $25 | ||
| LycaPlan SM | 100GB | Prepaid | Yes | $37.50 | Visit lycamobile | ||
 | 100GB Mobile Plan | 100GB | Postpaid | Yes | $39.00 | Switch — $25 | ||
 | 80GB | 80GB | Postpaid | Yes | $40.00 | Switch — $25 | ||
 | Large (Monthly) | 80GB | Prepaid | Yes | $40.00 | Visit kogan-mobile | ||
 | 100GB | 100GB | Postpaid | Yes | $41.80 | Switch — $25 | ||
| 100GB | 100GB | Postpaid | Yes | $41.80 | Switch — $25 | ||
| LycaPlan M | 120GB | Prepaid | Yes | $42.86 | Visit lycamobile |
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 80GB mobile plan across all networks?▾
100GB Mobile by tangerine at $24.00/mo is currently the cheapest 80GB plan across all networks. Prices are updated daily.
Should I choose postpaid or prepaid for a 80GB 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 updates mobile plan data daily from the billhero-telco-scraper. Each row shows its last verified date.
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.
AutoMonitor
Turn on AutoMonitor. Your retailers send your bills straight to your Bill Hero address; we watch every bill for savings — automatically. $49/mo. Save money without even thinking about it.
Learn about AutoMonitor