UK SIM-only deal
40GB 18-month plan
giffgaff · 18-month contract · Checked 19 Oct 2026
Monthly price£8.00/month
Upfront cost£0.00
Minimum contract cost£144.00
Promotion termsIncludes 34GB extra data (6GB base allowance). Activate by 4 December 2026; the increased allowance lasts for the 18-month contract.
Plan details
Data40 GB
Contract18-month contract
NetworkO2
Minutes / textsUnlimited / Unlimited
4G / 5G / eSIMYes / Yes / Yes
EU roamingUp to 5GB EU roaming on eligible plans
Price risesNo mid-contract price rises on current 18-month plans
Offer checked19 Oct 2026
Prices and availability can change. Check the provider’s website before purchase.