A SIM Only deal is great if you already have an existing mobile phone but you are looking for a better deal!
Similar to a mobile phone contract a SIM Only deal gives you an inclusive amount of data, minutes and text messages but at a much cheaper rate! This is because the network will not be subsidising the cost of a mobile phone.
You can also transfer your current mobile number to your new network provider, you can read more about this here.
Read our handy guide to find out What is a SIM-Only Deal