BenQ-Siemens P51

BenQ-Siemens P51 is a Windows Mobile 5.0 PDA smartphone developed by BenQ Mobile. It comes with an array of wireless connectivity including a built-in GPS receiver, Bluetooth and Wi-Fi. Like the BenQ P50 before it, the P51 took long to market - it was announced in March 2006 but was only first available in November 2006 in China, and March 2007 in Singapore and Turkey.

The next BenQ Windows Mobile device platform would be the BenQ E72 is the bar form factor without touch screen, had run on Windows Mobile 6.1 Standards (Smartphone Edition). It was released in 2010.