ASUS have stayed true to their word of an Ultrabook release in October, with the new Zenbook brand. Five new models will debut ranging in price from $999 to $1499. First up we have the Zenbook UX21 which is an 11.6-inch (1366x768) config, sporting 128GB of SSD and either a Core i5-2467M or Core i7-2677M whilst the Zenbook UX31 sports a 13.3-inch (1600x900) display and comes in three flavors: a Core i5-2557M model with 128GB of SSD, a similar model with the SSD pumped up to 256GB and the final model, including a Core i7-2677M.

The 11.6-inch Zenbook UX21 and 13.3-inch Zenbook UX31 weigh just 2.4 and 2.9 pounds, respectively. This os thanks to their aluminum alloy bodies, glass trackpads and all-metal keyboards. Not only that but they look absolutely gorgeous. The 11.6-inch UX21 ranges in thickness from 0.11-inch at the front, to 0.67-inch at the rear with the 13.3-inch packing more in the trunk with the same 0.11-inch front but a 0.71-inch rear.

All Zenbooks feature an instant-on feature that ASUS say will allow the Zenbook to resume from sleep in just two seconds. Battery life we have the UX21 rated for five hours of run time, sporting 7 days of standby time. The UX31 on the other hand lasts a tad longer, at seven hours of runtime or ten days standby from a single charge.

Other specs on the Zenbooks include 4GB of RAM, one USB 2.0 port as well as a USB 3.0 port, microHDMI and miniVGA outputs, a 0.3-megapixel webcam, 802.11b/g/n Wi-Fi, Bluetooth 4.0 and stereo speakers with Bang and Olufsen's ICEpower technology. The first Zenbooks should be available in the US starting October 12.