Cheapest 20GB Mobile Plans on Vodafone
The cheapest 20GB mobile plan on the Vodafone network is SB Unlimited 15 by lycamobile at $10.71/mo.
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Forward your bill8 Plans — sorted by price
Showing plans with 20–30GB data on the Vodafone network. Postpaid and prepaid only.
Prices validated: 26 July 2026
| Carrier | Plan | Data | Type | 5G | $/mo | Actions | |
|---|---|---|---|---|---|---|---|
 | SB Unlimited 15 | 20GB | Prepaid | No | $10.71 | Visit lycamobile | |
| SB Unlimited Plan XS | 30GB | Prepaid | No | $13.39 | Visit lycamobile | |
| Revolut 20 | 20GB | Prepaid | No | $15.00 | Visit lycamobile | |
 | 30GB | 30GB | Postpaid | No | $24.80 | Switch — $25 | |
 | 30GB | 30GB | Postpaid | Yes | $24.90 | Switch — $25 | |
 | Small 25GB | 25GB | Postpaid | Yes | $25.00 | Switch — $25 | |
 | $25 SIM Plan | 25GB | Prepaid | Yes | $26.79 | Visit lebara | |
 | $40 Prepaid Plus | 30GB | Prepaid | Yes | $42.86 | Visit vodafone |
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 20GB mobile plan on the Vodafone network?▾
SB Unlimited 15 by lycamobile at $10.71/mo is currently the cheapest 20GB plan on the Vodafone network. Prices are updated daily.
Should I choose postpaid or prepaid for a 20GB 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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