The mobile phone deals are of three kinds they are SIM free deals
, Contract deals and Pay as you go deals that you can have in your mobile phone. The pay as you go phones are with no limitation as like contract deals. Here you can make advance payment of your bill. The Samsung Galaxy S contract is with a bond after it you can make post payments of your bills. In SIM free deals you have the option to have a Sim card of your choice. In contract deals you will have the mobile phones with free gifts also. You can go with any of the available networks like Vodafone, T-Mobile and Orange.