Hand holding SIM card

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.

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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?