The leading network service providers, usually offer these Sim Free Mobile Phone Deals as cheap as they can.The customers can therefore, go for these Sim only deals, to get a sim connection from your network service provider of your choice. So now you need not to take any sort of tension for sim only deals, as the user can purchase these sim from their entrusted network service providers.The customer can avail these sim connections for a week or for a month as its suits to him. So now you are not bound to go for any particular deal, if you are not satisfied with it, just because you are still in the contract period.