It’s powered by Windows Vista Business and Intel’s groundbreaking Core Solo processor with ultra-low voltage for extended battery life. Advanced wireless capabilities are built right in–including tri-mode Wi-Fi, WWAN, WLAN, and Bluetooth–and expansion is a breeze with the included port replicator. It even includes two built-in cameras–one on the front (0.3 megapixels) for VoIP tele/videoconferencing and the other (1.3 megapixels) on the back for taking snapshots. Other technical features include a 1 GB of RAM, a Memory Stick slot, and a full complement of pre-installed software (from Internet security to Microsoft Works). For added convenience, a docking station with three 2.0 USB ports, Ethernet, VGA, iLink (FireWire/IEEE-1394) interface and an AV output comes with the unit, making it easy to connect to peripherals like a full-sized keyboard, display and speakers when back in the office or at home.

Review By Pcworld

In designing its VAIO Micro PC VGN-UX390N, Sony has condensed a standard notebook computer into a device only a little larger than–and about twice the weight of–a BlackBerry. And it did a good job, with two critical exceptions: The 4.5-inch display is too small for easy viewing even at arm’s length, and a finger on the keyboard is a typo waiting to happen.

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Review By Amazon

The UX390N features Sony’s SmartWi technology, which seamlessly integrates wireless Wide Area Network (WAN), 802.11a/b/g wireless LAN and Bluetooth technologies, enabling you to toggle among your wireless connectivity options depending on your surroundings. The tri-mode wireless LAN is compatible with 802.11b/g networks (commonly found in home routers and wi-fi hotspots) as well as 802.11a networks (which has a higher throughput, but more limited range–great for closed office environments). The integrated wireless Wide Area Network (WWAN) technology lets you access the Cingular Wireless EDGE network to extend your wireless coverage beyond LAN access networks and hotspots (a Cingular SIM card is included; see more about WWANs below). And with the Bluetooth wireless connectivity, you can synchronize and transfer files between the PC and peripherals such as cell phones and PDAs.

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Review By Sonystyle

The pocket-computer that does it all, the ultra-portable, ultra-powerful VAIO® VGN-UX390N Micro PC is a handheld wonder that uses flash memory to pack in the power. In addition to a spectacular design, this Micro PC is engineered for serious productivity on the go. Advanced wireless capabilities are built right in, and expansion is a breeze with the included port replicator. An integrated camera and microphone ensure that you can stay connected. With an Intel® Core™ Solo ULV processor and Windows Vista™ Business operating system, the VAIO®UX Premium is a convenient, ultra-portable way to do business.

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Review By Laptopmag

Like its predecessor, the UX390N weighs a mere 1.2 pounds and is only 5.9 inches wide and 1.3 to 1.5 inches thick (depending on battery size); a little too big for pocket travel but still highly portable. This model sports an all-black casing and features a brightly lit 4.5-inch widescreen touch display with a 1024 x 600-pixel resolution. The screen slides up to reveal a 64-button keyboard that is certainly spacious enough for thumb typing but lacks tactile response. That, coupled with the fact that the keys are virtually flat against the surface, makes entering keystrokes with any kind of speed difficult. On the upside, the keyboard is backlit, making it easy to read in the dark.

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