A smartphone is a small, all-in-one devices that is used for communication and computing functions. In contrast to ordinary cell phones, smartphones allow users to choose the applications that they want to install and use. This means that users can personalize the range of applications in their smartphones to suit their lifestyle and their job.
Ordinary cell phones limit the applications that a user can utilize to the applications that come with the phone. With smartphones, users can choose their own calendar, phonebook, organizer, etc. In this regard, a smartphone can be a cell phone with PDA features or PDAs with communication capabilities.