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United Kingdom · SIM-only

giffgaff SIM-only deals

Selected giffgaff SIM-only plans checked from the provider’s official website.

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3 SIM-only dealsPrices checked up to 6 Sept 2026
giffgaffChecked 6 Sept 2026
20GB monthly rolling plan
Monthly price
£10.00/month
20 GBdata
Network: O2
5GeSIMEU roaming: 5GB
Deal details
NetworkO2Contract30-day rolling5GIncludedeSIMeSIMEU roamingEU roaming: 5GBPrice risesNo annual price risesMinimum term cost£10.00Checked6 Sept 2026
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giffgaffChecked 6 Sept 2026
40GB 18-month plan
Monthly price
£8.00/month
Minimum contract cost £144.00
40 GBdata
Network: O2
5GeSIMEU roaming: 5GB
Deal details
NetworkO2Contract18-month contract5GIncludedeSIMeSIMEU roamingEU roaming: 5GBPrice risesNo annual price risesMinimum contract cost£144.00Checked6 Sept 2026
View deal details
giffgaffChecked 6 Sept 2026
80GB 18-month plan
Monthly price
£10.00/month
Minimum contract cost £180.00
80 GBdata
Network: O2
5GeSIMEU roaming: 5GB
Deal details
NetworkO2Contract18-month contract5GIncludedeSIMeSIMEU roamingEU roaming: 5GBPrice risesNo annual price risesMinimum contract cost£180.00Checked6 Sept 2026
View deal details

Provider information

giffgaff highlights

These are provider-level statements, not assumptions about a particular handset. Terms and coverage can vary.

About the network behind this provider

Who uses O2’s network in the UK? →

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Why are total and effective costs shown?

We show the provider’s advertised monthly price alongside any stated upfront cost and the contract total, so it is easier to compare the terms.

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No. We compare selected providers and do not claim whole-of-market coverage.

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