The cost of an iphone 5 without a contract from Sprint will depend on where you get it and the type of contract you do get. You can expect to pay between $200 and $600.he iPhone 5 will cost the following: 16 GB = $199.99 32 GB = $299.99 64 … GB = $399.99 Depending on which GB version you that is how it costs. On the other hand, if you happen to lose an iPhone or it gets stolen.