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O2 SIM only deals

We’ve got some fantastic SIM only deals from O2 currently available at Carphone Warehouse.

With an O2 pay monthly SIM, you’ll be able to enjoy all the benefits of being on one of the UK’s most popular networks, plus roam like home in European destinations*.

View FAQs View Pay as you go deals View Sim Only Upgrade Deals

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FAQs
What are the benefits of an O2 SIM only deal?
Will the O2 SIM card fit my phone or tablet?

**You will be charged for incoming calls if you're using your Equipment abroad outside of our Europe Zone (including the cost of receiving voicemail messages). If you use Services abroad outside of our Europe Zone, it will usually take longer to be billed. It's best to check the cost of using your Equipment abroad outside of our Europe Zone before you travel. Accidental roaming might occur if you are in an area close to national borders because your Equipment picks up a network across the border. If this happens, you may be charged as though you were roaming on an international network. You can prevent this if you are near a national border by setting your Mobile Phone or other Equipment (as applicable) to do a manual network selection and select the 'O2' Network. Click here to find out where you can roam like home in European destinations. For further T&C's click here.

 

Extra data allowances only apply during your 24-month minimum term. 24 month minimum term Pay Monthly contract means if you wish to cancel or leave within the term, you will need to pay the standard monthly tariff for the remaining months. Unused mins, text and data allowances must be used within the month and cannot be carried over.  Data can be used in the UK and when roaming in our Europe Zone only. UK calls/texts to standard UK landlines and mobiles and when roaming in our Europe Zone. Excludes premium-rate and service numbers. Fair Usage policy applies.  Special and out of bundle numbers chargeable. Connection subject to status and payment by direct debit. Subject to availability. Terms apply see o2.co.uk/terms.