A sim card is a tiny circuit board which is placed in a mobile phone to give call service. There is now a new form of mobile phone contracts called “sim only”. Sim only contracts are mobile phone contracts very similar to a normal phone contract that you would get though Phones4u or the Carphone Warehouse, etc but no mobile phone is supplied with the contract. You will receive a free sim card from the network of your choice; Orange, Vodafone, O2, T-Mobile, 3 or Virgin Mobile and choose the right tariff for you. Sim only contracts are generally rolling 30 day contracts; this means you are not tied into a contract for more than 30 days at a time so if you want to cancel your contract for another deal, you can do so very easily. It will be necessary to pass a credit check to get a sim only deal but these are nowhere near as stringent a check as it would be to take out a standard phone contract.

Once you have chosen your sim card plan, your network will post the new sim card to you and when the sim card has been activated you will simply need to insert the sim card into your phone and you will have service.