The Sony VGN-UX50 is a compact, ultra-portable ultrapersonal computer (UMPC) released in the mid-2000s. Featuring a 4.5-inch touchscreen, it combines the functionality of a full PC with the portability of a PDA. Powered by an Intel Pentium M processor, it offers 512MB of RAM, a 30GB hard drive, and runs Windows XP Professional. Despite its small form factor, the VGN-UX50 includes built-in Wi-Fi, Bluetooth, and a variety of connectivity options, making it a versatile device for mobile computing. Its sleek, clamshell design and innovative features made it a standout in the UMPC category at the time.