Zebra WT4090, 2.8", 320 x 240 pixels, TFT, 0.128 GB, 0.128 GB, RAM Zebra WT4090. Display diagonal: 2.8", Display resolution: 320 x 240 pixels. Internal memory: 0.128 GB, Flash memory: 0.128 GB. Processor frequency: 0.52 GHz, Processor manufacturer: Intel, Processor family: X-Scale. Operating system installed: Windows CE 5.0. Wi-Fi standards: 802.11a, 802.11b, 802.11g. Keyboard layout: Alphanumeric