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O2 SIM Only deals

Compare the latest O2 Simplicity SIM only deals and tariffs including pay monthly and Pay & Go plans. Our comparison includes prices, contracts, minutes, data, texts and more.

  • Tariffs & pricing

    At least 50 minutes,  At least 50 texts,  Any data,  Any contract,  Any monthly cost,  Any sim sim type
Deals
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NetworkMinimum
Contract
Inclusive
Minutes
Inclusive
Texts
Download
Data
Monthly
Cost
O2 SIM Only 150 30D 200MB GBP9 S1
O2
  • Micro SIM
  • 4G ready
  • 150 anytime, any network minutes

    30
    days
    150
    mins
    150
    texts
    200MB
    data
    £9
    per month
    See Deal
    • Inclusive minutes: 150
    • Download data: 200MB
    • Inclusive texts: 150
    • Minimum contract: 30 days
    See more details
    O2 SIM Only 150 30D 200MB GBP9 S1
    O2
    • Nano SIM
    • 4G ready
    • 150 anytime, any network minutes

      30
      days
      150
      mins
      150
      texts
      200MB
      data
      £9
      per month
      See Deal
      • Inclusive minutes: 150
      • Download data: 200MB
      • Inclusive texts: 150
      • Minimum contract: 30 days
      See more details
      O2 SIM Only 150 30D 200MB GBP9 S1
      O2
      • Standard SIM
      • 4G ready
      • 150 anytime, any network minutes

        30
        days
        150
        mins
        150
        texts
        200MB
        data
        £9
        per month
        See Deal
        • Inclusive minutes: 150
        • Download data: 200MB
        • Inclusive texts: 150
        • Minimum contract: 30 days
        See more details
        O2 SIM Only 250MB Set 1 £10.50
        O2
        • Nano SIM
        • 4G ready
        • 250 anytime, any network minutes

          12
          months
          250
          mins
          Unlimited
          texts
          250MB
          data
          £10.50
          per month
          See Deal
          • Inclusive minutes: 250
          • Download data: 250MB
          • Inclusive texts: Unlimited
          • Minimum contract: 12 months
          See more details
          O2 SIM Only 250MB Set 1 £10.50
          O2
          • Standard SIM
          • 4G ready
          • 250 anytime, any network minutes

            12
            months
            250
            mins
            Unlimited
            texts
            250MB
            data
            £10.50
            per month
            See Deal
            • Inclusive minutes: 250
            • Download data: 250MB
            • Inclusive texts: Unlimited
            • Minimum contract: 12 months
            See more details
            O2 SIM Only 250MB Set 1 £10.50
            O2
            • Micro SIM
            • 4G ready
            • 250 anytime, any network minutes

              12
              months
              250
              mins
              Unlimited
              texts
              250MB
              data
              £10.50
              per month
              See Deal
              • Inclusive minutes: 250
              • Download data: 250MB
              • Inclusive texts: Unlimited
              • Minimum contract: 12 months
              See more details
              O2 SIM Only 1500 30D 300MB GBP12 S1
              O2
              • Micro SIM
              • 4G ready
              • 1500 anytime, any network minutes

                30
                days
                1500
                mins
                1500
                texts
                300MB
                data
                £12
                per month
                See Deal
                • Inclusive minutes: 1500
                • Download data: 300MB
                • Inclusive texts: 1500
                • Minimum contract: 30 days
                See more details
                O2 SIM Only 1500 30D 300MB GBP12 S1
                O2
                • Nano SIM
                • 4G ready
                • 1500 anytime, any network minutes

                  30
                  days
                  1500
                  mins
                  1500
                  texts
                  300MB
                  data
                  £12
                  per month
                  See Deal
                  • Inclusive minutes: 1500
                  • Download data: 300MB
                  • Inclusive texts: 1500
                  • Minimum contract: 30 days
                  See more details
                  O2 SIM Only 1500 30D 300MB GBP12 S1
                  O2
                  • Standard SIM
                  • 4G ready
                  • 1500 anytime, any network minutes

                    30
                    days
                    1500
                    mins
                    1500
                    texts
                    300MB
                    data
                    £12
                    per month
                    See Deal
                    • Inclusive minutes: 1500
                    • Download data: 300MB
                    • Inclusive texts: 1500
                    • Minimum contract: 30 days
                    See more details
                    O2 SIM Only 500MB Set 1 £13
                    O2
                    • Nano SIM
                    • 4G ready
                    • 500 anytime, any network minutes

                      12
                      months
                      500
                      mins
                      Unlimited
                      texts
                      500MB
                      data
                      £13
                      per month
                      See Deal
                      • Inclusive minutes: 500
                      • Download data: 500MB
                      • Inclusive texts: Unlimited
                      • Minimum contract: 12 months
                      See more details
                      O2 SIM Only 500MB Set 1 £13
                      O2
                      • Standard SIM
                      • 4G ready
                      • 500 anytime, any network minutes

                        12
                        months
                        500
                        mins
                        Unlimited
                        texts
                        500MB
                        data
                        £13
                        per month
                        See Deal
                        • Inclusive minutes: 500
                        • Download data: 500MB
                        • Inclusive texts: Unlimited
                        • Minimum contract: 12 months
                        See more details
                        O2 SIM Only 500MB Set 1 £13
                        O2
                        • Micro SIM
                        • 4G ready
                        • 500 anytime, any network minutes

                          12
                          months
                          500
                          mins
                          Unlimited
                          texts
                          500MB
                          data
                          £13
                          per month
                          See Deal
                          • Inclusive minutes: 500
                          • Download data: 500MB
                          • Inclusive texts: Unlimited
                          • Minimum contract: 12 months
                          See more details
                          O2 SIM Only 150 30D 2GB GBP15 S1
                          O2
                          • Micro SIM
                          • 4G ready
                          • 150 anytime, any network minutes

                            30
                            days
                            150
                            mins
                            150
                            texts
                            2GB
                            data
                            £15
                            per month
                            See Deal
                            • Inclusive minutes: 150
                            • Download data: 2GB
                            • Inclusive texts: 150
                            • Minimum contract: 30 days
                            See more details
                            O2 SIM Only 150 30D 2GB GBP15 S1
                            O2
                            • Nano SIM
                            • 4G ready
                            • 150 anytime, any network minutes

                              30
                              days
                              150
                              mins
                              150
                              texts
                              2GB
                              data
                              £15
                              per month
                              See Deal
                              • Inclusive minutes: 150
                              • Download data: 2GB
                              • Inclusive texts: 150
                              • Minimum contract: 30 days
                              See more details
                              O2 SIM Only 150 30D 2GB GBP15 S1
                              O2
                              • Standard SIM
                              • 4G ready
                              • 150 anytime, any network minutes

                                30
                                days
                                150
                                mins
                                150
                                texts
                                2GB
                                data
                                £15
                                per month
                                See Deal
                                • Inclusive minutes: 150
                                • Download data: 2GB
                                • Inclusive texts: 150
                                • Minimum contract: 30 days
                                See more details
                                48
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                                Compare O2 SIM-only deals

                                How do I compare different packages?

                                If you’ve found a handset you’re comfortable with, but are looking for a better deal on your tariff, then a SIM-only deal might fit the bill perfectly. O2 has some of the best SIM-only deals suitable for every pocket and requirement, including a handful of data-only SIMs for tablets or mobile broadband devices.

                                The blue ‘see deal’ button takes you to O2’s website

                                Our comparison page allows you to compare SIM-only deals from O2 and order them according to your preference. If you want a little more information regarding each SIM, you can click on the blue button on the right-hand side of the table that will take you over to O2’s website.

                                Availability

                                If you’re moving from a different provider to O2, it’s best to check what the mobile coverage is like in your area. This can be done on 02’s website which has a map of the provider’s 2G, 3G and 4G coverage. O2’s availability is generally good, and it states that it hopes to have 98 per cent of the UK population covered on its 2G, 3G and 4G networks before 2017, so there’s a good chance you’ll be covered by it.

                                Check the detail

                                Before you dive right into the first SIM you spot, check the detail of the package. Make sure you know what size and type of SIM you want (O2 supply SIMs for iPhones, Blackberrys, other standard smartphones and tablets). Also check the contract length, the monthly price, and whether it’s 4G ready. It’s also worth having a ferret through some of the fine print in the terms and conditions so you understand where you stand if, for example, you needed to end your contract early; it’s best to know this information before committing.

                                Why choose an O2 SIM-only deal?

                                Cheaper than a contract that comes with a phone

                                The major benefit of a SIM-only deal is that it’s far cheaper than opting for a contract that comes with the price of a handset attached. O2 has a great range of contracts, with a variety of minute and data allowances so you should be able to find one that suits your requirements. They also come with a wide range of prices, so you should be able to make a substantial saving if you’re looking to cut down on your bills. It’s also worth noting that all O2 SIMs come with unlimited texts, so it’s ideal for those who like to chatter away to their friends by text.

                                Contracts are either 30 days or 12 months in length

                                You can choose your level of commitment with O2, as its SIM-only mobile phone deals come with either 30-day or 12-month contracts. Opting for the shorter contract is more expensive, but you get the flexibility of being able to leave whenever you want.

                                A choice of either 3G or 4G-ready

                                If your phone is 4G-ready, and you live in an area with a good 4G signal, you’ll automatically be upgraded to the faster service, providing you opt for a 4G-ready SIM. Having 4G (short for 'fourth generation') means you will be able to access content and stream files far faster than on 3G. How fast your 4G connection will be depends on your location and the number of people using the service.

                                Pros & cons

                                Pros

                                • Cheaper than a contract with a phone
                                • 30-day or 12-month contracts
                                • A choice of either 3G or 4G speeds

                                Cons

                                • You need to be happy with your current handset
                                • You will need to get your phone unlocked if switching provider
                                • 4G coverage is not available everywhere

                                Which package is right for me?

                                If you’re still undecided over which O2 SIM-only deal is right for you then fear not, we’ve picked out three of our favourites to give you a taste of what you could be experiencing.

                                O2 12-month 250 minutes/250MB SIM

                                This is the cheapest SIM-only deal offered by O2 and is great for light users that use their phone mainly for texting but still make the occasional phone call and send the occasional e-mail. It is only available on the 3G network, although you’d soon blow though your 250MB allowance if you were on 4G. Using data outside your contract limits is charged at a maximum of £1 per day, so it’s worth keeping track of how much you’re using as it could soon add up.

                                O2 30-day unlimited minutes/2GB SIM

                                This SIM comes with unlimited texts and minutes and a 2GB data allowance. It comes 4G-ready and, perhaps most attractively, has a 30-day rolling contract. This SIM would be perfect for those that make a lot of calls and use an average amount of data, but do not want to commit to a year-long contract.

                                O2 12-month unlimited minutes/25GB SIM

                                This is the most expensive SIM-only deal available from O2, and you get a good amount of bang for your buck. Along with unlimited calls and texts, you get an 25GB data allowance, which should be enough for most internet users. O2 also allows tethering on its network, which can sap data faster, but is great if you only need it in short bursts. This is an ideal SIM for those that use their phone a lot, and aren’t planning on switching contract any time soon.

                                What will I need?

                                A handset

                                Mobile phones evolve and improve year-on-year, but if you’re happy with the particular model you’ve got, then a SIM-only plan might be the thing for you. If you bought and used your phone with a different provider, then you’ll need to get it unlocked so it can be used with O2. This isn’t a particularly risky task, although it might invalidate the phone’s warrantee.

                                A contract

                                O2 offers two contracts with its SIM-only deals: a 30-day contract for those wanting the flexibility to be able to leave at the drop of a hat and a 12-month contract for those that don’t. The longer contract is cheaper but comes with the added risk of not being able to leave if your circumstances change.

                                How do I switch?

                                Once you’ve chosen your desired SIM, you’ll need to speak to your current provider and tell it that you’re switching. It’s best if this is done outside of your contract period, as you’ll likely incur a cancellation fee if you don’t.

                                A PAC will allow you to keep your number

                                If you want to keep your current mobile number, and you are moving from a different provider to O2, you may need a port authorisation code (PAC). This code needs to go to O2 within 30 days and means you should be able to keep your old number.

                                Six essential questions before you buy

                                1. Can you get O2 coverage in your area?
                                2. Which SIM does your phone take?
                                3. How much am I willing to spend?
                                4. Do I want to get my phone unlocked?
                                5. How long do I want my contract to be?
                                6. Do I need 4G?

                                Cable.co.uk recommends

                                There is a good range of SIMs on offer here and you should be able to find one that fits your needs. Make sure you know what it is you’re getting before you sign a contract, and that you’re clear about unlocking your phone and getting a PAC if you’re switching providers.

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