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giffgaff SIM only deals: how they compare on price this September

giffgaff logo with a SIM cardVisit giffgaff.com

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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: 15th September 2021.

giffgaff's best SIM only deals

The best value SIM only deal on giffgaff this month

giffgaff SIM card
 
25GB data
£15
a month

1-month dealGet this deal

at giffgaff.com
(opens in new window)

Out of all the SIM only plans available this September on giffgaff, we'd say their best value deal is their 1‑month SIM below, which gets you 25GB data, plus unlimited minutes and texts for £15 a month:

Even though it's in our pick of giffgaff's best SIM only deals, you can actually beat it on price with other providers, including ones that also use the O2 network. See lower-priced networks' deals here:

£12 for 12GB is giffgaff's next best SIM deal in September

giffgaff SIM card
 
12GB data
£12
a month

1-month dealGet this deal

at giffgaff.com
(opens in new window)

If you need less data, have a look at giffgaff's 12GB SIM below at £12 a month, as it's another good deal. It's on a 1‑month plan and comes with 12GB data, unlimited minutes and texts:

While this is a good enough deal to make it into the best of giffgaff's SIMs, you can beat it for price (even if you definitely want a provider that uses the O2 network). Here are other networks you can beat it on:

There's also a nice 10GB for £10 plan with them this month

giffgaff SIM card
 
10GB data
£10
a month

1-month dealGet this deal

at giffgaff.com
(opens in new window)

For a smaller amount of data, another option for you on giffgaff, is their 1‑month SIM below, which costs £10 a month for 10GB 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

SIM card with magnifying glass

Networks

Providers:

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EE logo
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Honest logo
ID logo
IQ logo
Lebara logo
O2 logo
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