BenQ P31 official Pictures. BenQ P31 is a Smartphone of benq. The BenQ P31 Symbian Smartphone. Announced Q1 2004. Features TFT Resistive Touchscreen, 65K Colors Display, TI OMAP V1030 Chipset, 1.3 MP Primary Camera, 760 MAh Battery. BenQ P31 price starts.