Following the launch of the 13.3-inch LaVie Z in May this year, NEC, the Tokyo-based consumer electronics company, is introducing its latest ultrabook that is running Windows 8. NEC says that the LaVie X is the world’s thinnest ultrabook, thanks to its 12.8mm form factor and 1.59kg weight. At 15.6-inches, the display size of the LaVie X is much larger than the LaVie Z and it also comes with a full HD IPS panel and a 1920 x 1080 resolution. Under the hood is an Intel Core i7-3517U processor clocked at 1.9Ghz. That power is supported by a 4GB RAM and a 256GB SSD, which is pretty good. Other nifty features include a 2-megapixel web-camera, two USB 3.0 ports, WiFi 802.11 b/g/n, Bluetooth 4.0, an SDXC slot, and HDMI support. The LaVie X will be available this coming December 27th, most probably in the Japanese market. So far, no word for a global launch has been heard.