Compare Sim Only Deals allows the client to pay only for the card. They do not have to pay for a phone. Many people are happy with the handheld device they already have. The SIM is good value for money. For instance, the price per month for T-Mobile and Virgin and is 10.21 British pounds. Virgin allows for unlimited texs and two hundred minutes and for T-Mobile it is one hundred minutes and the texts is unlimited. Vodafone offers unlimited texts, three hundred minutes at 10.50 pounds a month.