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Tech-Specs > Minimum OS Class Required > Windows Mobile 2003 SE

Windows Mobile 2003 Second Edition, also known as "Windows Mobile 2003 SE", was released on March 24, 2004, was based on the Windows CE 4.x kernel, and first offered on the Dell Axim x30. This was the last version which allowed users to back up and restore an entire device through ActiveSync. This upgrade allows users to switch between portrait and landscape modes and introduces a single-column layout in Pocket Internet Explorer. It includes support for Wi-Fi Protected Access (WPA) and new screen resolutions: 640×480 (VGA), 240×240, and 480×480.