Motorola WT4090. Display diagonal: 71.1 mm (2.8 "), Display resolution: 320 x 240 pixels, Display: TFT. Internal memory: 128 MB, Internal memory type: RAM, Flash memory: 128 MB. Processor clock speed: 520 MHz, Processor family: X-Scale, Processor manufacturer: Intel. Mobile operating system installed: Windows CE, Operating system version: 5.0 Professional. Wireless LAN type: 802.11a, 802.11b, 802.11g