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giffgaff SIM only deals: how their prices compare this September

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We run through each of giffgaff's best SIM only plans this month and compare them on price with every other mobile network in the UK. SIM Sherpa is your trusty guide. Last updated: 28th September 2023.

giffgaff's best SIM only deals

The best value SIM only deal on giffgaff this month

giffgaff SIM card
40GB data
a month

18-month dealGet this deal

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£6 for 2GB is giffgaff's next best SIM deal in September

giffgaff SIM card
2GB data
a month

1-month dealGet this deal

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There's also a nice 6GB for £8 plan with them this month

giffgaff SIM card
6GB data
a month

18-month dealGet this deal

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To get more data, another option for you on giffgaff, is their 18‑month SIM below, which costs £8 a month for 6GB data and comes with unlimited minutes and texts:

It's a good enough deal to get into giffgaff's best SIMs but you can actually get a lower price for a similar plan elsewhere, even if you definitely want it to use the O2 network. See the networks with cheaper plans here:

Compare all SIM only plans

Compare deals from all networks

How giffgaff's deals compare with other networks

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More about giffgaff's SIM only plans

How giffgaff’s benefits and SIM only prices stack up

Finger rating stars with giffgaff logo

We cover everything in our reviewRead our full review

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In our full review of giffgaff we said we like that they offer full access to O2’s 5G/4G/3G/2G network at much lower costs than joining O2 directly. They also have a nice free WiFi hotspot scheme on top of that.

giffgaff market their SIM only deals (their “goodybags”) as monthly bundles of minutes, texts and data with no contracts. Compare their plans here to find the best possible deal.

Their best value plans are their mid-range data deals. For these they work out as one of the cheapest providers on the O2 network.

giffgaff still offer inclusive EU roaming on all plans at no extra cost. And you can get £5 free credit on your first £10 top up or bring a friend onto giffgaff to both get £5 free credit.

Useful link: Read our full giffgaff review

What else you should know about giffgaff’s SIM only plans

Screenshot of giffagff's network map

Check anywhere you use your phoneCheck your signal

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You’ll receive your SIM package within 2 working days. And you can even have it delivered in the EU within 3-5 days and beyond the EU around 5+ days after you order. giffgaff don’t offer eSIMs (these networks do).

If you’re not happy with your SIM you can return it to get a refund within 14 days. But you only get a refund on what you haven’t used, so you won’t get a full refund if you used some data (read more here).

Since you’re paying for your minutes, texts and data up front then you won’t have to pass a credit check for their SIM only plans. You’ll just have to give them some details so they know who you are.

If you want to switch to giffgaff from another network while keeping your old number you’ll have to request a PAC from your old provider to give to giffgaff. You can read their instructions on how this works here.

Useful link: Compare all giffgaff SIMs

Other giffgaff guides