Best giffgaff SIM and mobile phone deals

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giffgaff has some of the most flexible and affordable SIM only deals you can find. It’s famed for its online community and has won several awards for its overall service. If you’re looking for a cheap SIM only deal you can count on, giffgaff should be near the top of your list. 

Why should I choose a giffgaff SIM deal?

There are several prime reasons for choosing a giffgaff SIM only deal. Here’s a snapshot of what to expect when you sign up to the network: 

  • Some of the cheapest SIMs around – giffgaff’s deals are super cheap, you can get connected for as little as £6. 
  • Wide selection of deals – whether you want a big data bundle or a minor GB deal, giffgaff caters for all types of customers. 
  • No credit check – giffgaff’s monthly rolling deals don’t require a credit check, so you don’t have to worry about being rejected if your credit history isn’t the best. 
  • Flexible plans – giffgaff deals are easy to cancel. In fact you can change your plan every month should you wish.
  • Get rewards for contributing to forums – giffgaff encourages use of its community forum. And if you make helpful contributions you can earn points that go towards credit, charity donations or even cashback.

How to find the best giffgaff deal for me

When selecting a SIM deal, the most important factors to consider are your monthly data allowance and the price. It’s the same with giffgaff SIM only plans. 

Thankfully, all giffgaff SIMs are reasonably priced and include unlimited calls and messages. So your only concern is the data bundle you require, and as a quick tip: most people use about 3GB of data per month on average.

However, the best way to see your data consumption is to check your current network’s app which should have a feature that reveals how many gigabytes you’ve got through in the past months. Then you can pick a new SIM card accordingly.

Because giffgaff SIMs are on a rolling contract, you are free to chop and change to suit your needs as you go on as often as you like. So if you realise you’re using less data than you thought you’d need, you can drop down to a cheaper plan the following month.

We’ve got plenty of giffgaff deals for you to choose from. Here, you’ll see our top three cheapest deals with enough data for most people.


Coverage area

giffgaff bases its service on the O2 network, which provides users with 99% coverage throughout the UK. This means it’s on par with Three, Vodafone and EE.

Given the low cost of its deals, this makes it very appealing as you’ll be getting the quality of the Big Four networks for much less money and with more flexibility.

Customer service

giffgaff is branded as ‘the mobile network run by you’, and it’s more than just a snazzy slogan. Giffgaff’s customer service is an online only offering, and it’s made up of giffgaff customers (members) as well as dedicated support agents.

 Members are encouraged to assist with online support queries on the network’s online forums and anyone who does choose to get involved will be rewarded with giffgaff points they can use to claim cashback and extra perks. 

The forum is running 24/7, so you can post a question whenever you like, and you could get a reply quicker than you’d think. While you might think this isn’t a great way to get help, giffgaff consistently performs well in Ofcom’s reports. In fact, it received a customer satisfaction score of 95% in the regulator’s 2023 study. 


When compared to other networks, like O2 or Vodafone, you may think that giffgaff doesn’t offer the same kind of eye-catching benefits like early-access tickets and streaming subscriptions. 

However, giffgaff keeps its benefits simpler and more impactful to your daily finances by offering cheap SIM only deals that can be cancelled at any time. It’s also ideal for anyone who’s wary of undergoing a credit check, as giffgaff short term deals don’t need you to commit to a long contract.


Unlike many other networks (such as EE, Three and Vodafone), giffgaff still offers EU roaming with its SIM only deal at no extra cost. Bear in mind, there is a 5GB fair usage cap, but that should cover you for short trips when you can’t use Wi-Fi.

Mobile app

You can get the giffgaff mobile app for your Android or iPhone device. The handy app is easy to use and helps you manage all aspects of your account.

You can see how much data you’ve used so far in the month (and over previous months), switch to a new plan or buy an add-on, and even manage multiple giffgaff accounts. Get it from your smartphone app store. 

Contract lengths

Giffgaff only has two types of plan on offer – monthly rolling or 18-month deals. The former is ideal for flexibility and if you don’t want to make a lengthy commitment, while the latter will get you a more favourable data package for your money if you’re not fussed about being locked in for the whole duration. 

Upfront costs or set-up fees

Don’t worry about set-up fees, giffgaff doesn’t include upfront costs with any of its SIM only deals. So you can get started right away by simply paying for your data bundle which will always include unlimited calls and texts. 

Data rollover

Giffgaff doesn’t include a data rollover option, but since its deals are easy to change and great value, if you find that you have a lot of unused data left over every month you can just drop down to a cheaper plan to save money. 


Flexibility is giffgaff’s main selling point and its no-contract plans are ideal if you don’t want to commit to a longer deal. Giffgaff deals always include unlimited calls and messages, so it’s just a case of choosing your ideal data allowance.

Some of giffgaff’s best deals are: 

  • £8 per month for 5GB data, unlimited calls, unlimited messages
  • £10 per month for 20GB data, unlimited calls, unlimited messages
  • £15 per month for 35GB data, unlimited calls, unlimited messages
  • £35 per month for unlimited data, unlimited calls, unlimited messages

Remember, you can change your data deal whenever you like. 

Wi-Fi calling

As it stands, giffgaff does not currently provide Wi-Fi calling on its network. But since it’s offered by most other networks, we wouldn’t be surprised to see giffgaff switching on Wi-Fi calling in the near future. 

Tethering policy

Good news, giffgaff doesn’t impose any restrictions on tethering. So you’re free to connect other devices onto your phone’s internet and convert it into a useful mobile hotspot. 

This is excellent if you have unlimited data, as you can hook up as many of your devices at once and not have to worry about multiple devices draining your allowance. 

giffgaff mobile phone deals

The best giffgaff deals are usually its SIM only deals, but did you know that giffgaff sells mobile phone deals too? You don’t get any calls or data as part of the plans, but you can spread the cost of a brand new phone over a period of time, making that flashy new smartphone a bit easier on the wallet. 

From brand new models to older favourites, giffgaff has a full suite of handsets to choose from:

Other networks

There are plenty of other networks with cheap SIM only deals, so don’t fret if you haven’t found what you’re looking for with giffgaff. Take a look at the plans on offer with any of the other trusted UK networks: 


Will I need to sign a contract?

No, you don’t have to sign a contract for a giffgaff rolling monthly deal. You’re only buying one month’s worth of data at a time, so there’s no need to commit to a financial payment plan or complete a credit check.

Is giffgaff connected with O2?

Yes, giffgaff had based its mobile phone infrastructure on O2’s network. So not only do you get cheap deals and great flexibility, you also benefit from one of the country’s best speeds and coverage providers. 

Can I get a giffgaff SIM only deal with poor credit?

Yes, giffgaff doesn’t check your credit history for any of its rolling monthly deals. So you can sign up and get a cheap data bundle with no multi-year financial commitment to worry about. 

The flexible price plans can also be changed from months to month if you wish, so you can switch up your data package to suit your changing needs. 

If I get a giffgaff SIM only deal, can I keep my current mobile number?

Yes, make sure you have your PAC code to hand when you sign up to giffgaff and you’ll be able to keep your current mobile phone number with no hassle. Don’t have a PAC code? No problem, just send a text to 65075 and you’ll quickly get a reply with your PAC code inside.