With a cell phone in your Pocket you're always reachable. But while the one above all want to be able to make and receive calls, the other for maximum megapixels and storage space. Mobile phones can be divided into three categories: the budget phones, mid-range phones and high end phones. The price of a smartphone is based on the specifications. In General, the following rule of thumb: the more you pay for your mobile phone, the more you get.