 | SIM Only SIM Card on the O2 Upgrade networkHere are the cheapest deals available when buying a SIM Only SIM Card mobile phone on the O2 Upgrade network today. The best deal found on each tariff is shown Click on the 'Buy Now' links below to be taken to the relevant retailer's site where you will find full detail of the offers.
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Annual Price Changes - O2 Upgrade : Monthly price will increase every April by £2.50
Best SIM Only SIM Card Deals on O2 Upgrade
| Tariff | Free Mins | Free Txts | Data | Upfront Cost | Initial Monthly Cost | Offer Details | Total Cost | Buy Online |
|---|---|---|---|---|---|---|---|---|
 O2 Upgrade Unlimited + 12GB at £6.9912 month contract | Unlimited minutes | Unlimited texts | 12.00 GB data | FREE | £6.99 (price may rise during contract) | FREE SIM Only SIM Card | Equivalent Cost £6.99/mth over 12 mths |   View More Info |
| O2 Upgrade Unlimited + 40GB at £8 12 month contract | Unlimited minutes | Unlimited texts | 40.00 GB data | FREE | £8.00 (price may rise during contract) | FREE SIM Only SIM Card | Equivalent Cost £8.00/mth over 12 mths | View More Info |
| O2 Upgrade Unlimited + 50GB at £8.50 12 month contract | Unlimited minutes | Unlimited texts | 50.00 GB data | FREE | £8.50 (price may rise during contract) | FREE SIM Only SIM Card | Equivalent Cost £8.50/mth over 12 mths | View More Info |
| O2 Upgrade Unlimited + 80GB at £9.50 12 month contract | Unlimited minutes | Unlimited texts | 80.00 GB data | FREE | £9.50 (price may rise during contract) | FREE SIM Only SIM Card | Equivalent Cost £9.50/mth over 12 mths | View More Info |
| O2 Upgrade Unlimited + 100GB at £12 12 month contract | Unlimited minutes | Unlimited texts | 100.00 GB data | FREE | £12.00 (price may rise during contract) | FREE SIM Only SIM Card | Equivalent Cost £12.00/mth over 12 mths | View More Info |
| O2 Upgrade Unlimited + 250GB at £15 12 month contract | Unlimited minutes | Unlimited texts | 250.00 GB data | FREE | £15.00 (price may rise during contract) | FREE SIM Only SIM Card | Equivalent Cost £15.00/mth over 12 mths | View More Info |
| O2 Upgrade Unlimited + 300GB at £16 12 month contract | Unlimited minutes | Unlimited texts | 300.00 GB data | FREE | £16.00 (price may rise during contract) | FREE SIM Only SIM Card | Equivalent Cost £16.00/mth over 12 mths | View More Info |
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