Cheapest 80GB Mobile Plans — Any Network
The cheapest 80GB mobile plan across all networks is 100GB by tangerine at $24.00/mo.
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Forward your bill20 Plans — sorted by price
Showing plans with 80–120GB data across all networks. Postpaid and prepaid only.
Prices validated: 26 July 2026
| Carrier | Plan | Data | Type | 5G | $/mo | Actions | |
|---|---|---|---|---|---|---|---|
 | 100GB | 100GB | Postpaid | Yes | $24.00 | Switch — $25 | |
| 100GB Mobile | 100GB | Postpaid | Yes | $24.00 | Switch — $25 | |
| 100GB | 100GB | Postpaid | No | $24.00 | Switch — $25 | |
 | SB Unlimited Plan XL | 100GB | Prepaid | No | $24.11 | Visit lycamobile | |
 | $180 Prepaid SIM | 100GB | Prepaid | Yes | $29.03 | Visit boost-mobile | |
 | $180 Prepaid Plus | 100GB | Prepaid | Yes | $29.19 | Visit vodafone | |
 | 140GB 186 Days | 90GB | Prepaid | Yes | $32.26 | Visit optus | |
 | $200 Pre-Paid Mobile Plan Sale | 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 | |
 | 5G Prepaid 30 days $35 for 100GB | 100GB | Prepaid | Yes | $35.00 | Visit woolworths-mobile | |
 | 100GB | 100GB | Postpaid | Yes | $39.80 | Switch — $25 | |
 | 100GB | 100GB | Postpaid | Yes | $39.90 | Switch — $25 | |
 | 80GB | 80GB | Postpaid | Yes | $40.00 | Switch — $25 | |
 | Large (Monthly) | 80GB | Prepaid | Yes | $40.00 | Visit kogan-mobile | |
| LycaPlan M | 120GB | Prepaid | No | $42.86 | Visit lycamobile | |
| Unlimited M | 100GB | Prepaid | No | $42.86 | Visit lycamobile | |
 | $40 SIM Plan | 85GB | Prepaid | Yes | $42.86 | Visit lebara |
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 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 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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