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It has been suggested that PDA Phone be merged into this article or section. (Discuss)A smartphone or sphone is any electronic handheld device that integrates the functionality of a mobile phone, personal digital assistant (PDA) or other information appliance. This is often achieved by adding telephone functions to an existing PDA (PDA Phone) or putting "smart" capabilities, such as PDA functions, into a mobile phone. A key feature of a smartphone is that additional native applications can be installed on the device. The applications can be developed by the manufacturer of the handheld device, by the operator or by any other third-party software developer. Sagem MY X2-2 reviews and technical details.
A Sony Ericsson Smartphone (Model P910i with Opera web browser)Definition and history
It is increasingly difficult to define exactly what qualifies as a "smartphone". Nearly all new mobile phones have some rudimentary PDA functionality such as phonebooks, calendars, and task lists. Furthermore, BREW and Java ME devices allow for the installation of additional applications but are still not considered smartphones. There are many BREW devices with PDA functionality, the ability to run third-party applications in native code and sporting displays as large as 240x320 pixels; yet they are not considered "smartphones".