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giffgaff SIM only deals: how their prices compare this May

giffgaff logo with a SIM cardVisit

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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: 16th May 2022.

giffgaff's best SIM only deals

This month's best SIM only deal on giffgaff

giffgaff SIM card
25GB data
a month

1-month dealGet this deal

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Looking at what you can get on SIM only with giffgaff this May, our best-rated deal would be their 1‑month plan below, which comes with 25GB data, plus unlimited minutes and texts for £15 a month:

Compared to giffgaff's other deals, this comes out among the best. But it's worth knowing you can get a lower price elsewhere, even on other providers that use the O2 network. Here are other networks you can beat it on:

Their £12 for 20GB plan is a decent deal for May

giffgaff SIM card
20GB data
a month

1-month dealGet this deal

(opens in new window)

For people who don't need that much data, we'd say this is one of giffgaff's best deals on SIM only this month too. It's a 1‑month plan, comes with 20GB data, unlimited minutes and texts for £12 a month:

It might be one of giffgaff's best deals on SIM only but you can get a lower price for a similar plan on other providers, even ones that use the O2 network. See the networks with cheaper plans here:

They're also offering 15GB for £10 on SIM only currently

giffgaff SIM card
15GB data
a month

1-month dealGet this deal

(opens in new window)

If that'd be too much data for you, have a look at giffgaff's 15GB SIM below at £10 a month, as it's another good deal. It's on a 1‑month plan and comes with 15GB data, unlimited minutes and texts:

There are other networks charging less for a SIM with 15GB data or more but this is the best current option with a provider that uses O2. Here's which other networks can beat it:

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 SIM only prices and benefits compare

Finger rating stars with giffgaff logo

What we think about giffgaffRead our full review

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As we show in our full review of giffgaff, we like that you get full access to O2’s network, including 5G, for a much lower price than being on O2 directly. You also get a decent free WiFi hotspot scheme.

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 (alongside Sky Mobile and Tesco Mobile).

giffgaff are pretty much a no-frills network. They do offer £5 free credit on your first £10 top up and if you get a friend to join giffgaff both you and your friend will get £5 free credit. They also offer inclusive EU roaming as standard.

Useful link: Read our full giffgaff review

Useful information about giffgaff’s SIM only deals

Screenshot of giffagff's network map

Try all places you'll use your phoneCheck your signal

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Your giffgaff SIM will be delivered within 2 working days, and you can get it delivered to the EU within 3-5 working days or even to anywhere else in the world around 5+ days after ordering. They don’t offer eSIMs (see the networks that do).

It’s your right as a customer to get your SIM refunded within the first 14 days of receiving it. But you’ll only get back what you haven’t used, so if you used up a little bit of data you won’t get a full refund. Here’s how you do it.

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 can do so by requesting 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