PDAs are basically handheld devices that offer some features and functionalities of a computer. On the other hand, smartphones are devices that also come integrated with functionalities and features of a mobile phone. However, the features may vary depending on the model and the brand.
Smartphones can integrate almost everything that you need for wireless communication. These features include Bluetooth and Wi-Fi networking, integrated high resolution camera, music and video player, address book, calendar, notepad and to-do list along with other applications. These days, almost all smartphones feature touchscreen technology.
Whilst some smartphones feature a slide out QWERTY keyboard, others feature an on-screen one. With the help of the QWERTY keyboard, typing emails, text messages, entering data into applications like calendars, web browsers and notes etc can be done with ease. Smartphones feature an integrated web browser which enables you to view all websites right on your mobile phone.
Additionally, you can check, create and reply to your emails, in addition to downloading and reading attachments, which is one of their biggest advantages. When using smartphones, you will have the ability to perform all work that you usually do on your computer.
There are plenty of applications available from games to productivity tools to music/video applications that you can download to your smartphone, and with the help of these third party applications, you can easily make your smartphone even more functional.