Zebra WORKABOUT PRO 4, 9,4 cm (3.7"), 640 x 480 pixels, 0,512 GB, 4 GB, 1 GHz, OMAP AM3703 Zebra WORKABOUT PRO 4. Display diagonal: 9,4 cm (3.7"), Display resolution: 640 x 480 pixels. Internal memory: 0,512 GB, Flash memory: 4 GB. Processor frequency: 1 GHz, Processor manufacturer: Texas Instruments, Processor family: OMAP AM3703. Operating system installed: Windows Embedded Handheld 6.5. Wi-Fi standards: 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n)