Honeywell SP5700 OptimusPDA. Display diagonal: 88.9 mm (3.5 "), Display: TFT, Display number of colours: 0.064000 M. Internal memory: 128 MB, Memory slots: miniSD, R-UIM, Flash memory: 128 MB. Processor clock speed: 520 MHz, Processor family: Intel XScale, Built-in processor: PXA270. Wireless technology: 802.11 b/g. Interface: USB, RS232, IrDA