
giffgaff SIM-only deals
giffgaff is no-contract SIM-only on O2's network, change or cancel any month, no credit check needed. Compare every Goodybag below.
giffgaff is no-contract SIM-only on O2's network, change or cancel any month, no credit check needed. Compare every Goodybag below.

List of SIM-only deals
FAQs
Do I need to unlock my phone first?
If your phone was bought from a network other than O2, you may need to unlock it before using a giffgaff SIM. Contact your current network to unlock, it's usually free for phones that are out of contract. iPhones bought outright from Apple are always unlocked.
Can I keep my current phone number?
What is a Goodybag?
Can I get giffgaff on an 18-month contract?
Is giffgaff good for business use?
How much do giffgaff SIM only deals cost?
Does giffgaff do a credit check?
How fast is giffgaff 5G?
Can I use giffgaff in the EU?
How long does a giffgaff SIM take to arrive?
Can I change my giffgaff plan every month?
What happens to my giffgaff credit if I switch?
Latest from our experts

Climate Change Levy UK 2026: HMRC rates, reliefs, SME checklist
Climate Change Levy business 2026: HMRC main rates from 1 April 2026 (0.801p/kWh elec & gas), CCA reduced rates, who pays, and SwitchSquid business energy quote CTA.

Split suppliers vs dual fuel UK: when split beats the £1,723 cap path
Split suppliers vs dual fuel cheapest UK with Ofgem Oct–Dec 2026 £1,723 dual-fuel DD context, standing-charge maths, and MoneySuperMarket Awin Compare CTA.

One Touch Switch broadband UK: Ofcom steps, fees, compensation
How One Touch Switch broadband UK works under Ofcom: contact the new provider only, Switching Information, no notice beyond switch date, compensation rules, plus live Awin broadband CTA.

120GB SIM only deals UK 2026: iD £12/mo verified, Talkmobile near-tiers
Retailer-verified 120GB SIM only deals UK as of 18 Sep 2026: iD Mobile £12/mo (£144/year), Talkmobile 100/150GB cash neighbours, SMARTY ladder gaps. Live Awin CTA.