The UX21 has a 11.6-inch 16:9 wide-aspect ratio display, with a resolution of 1366×768, while the UX32 has a resolution of 1600×900. The display bezel also measures 15.4mm thick (left and right), 20mm and 23.14mm up and down respectively. ASUS also incorporates a chiclet-style keyboard with matching colors. In terms of dimension, we measured 16.2 x 14.8mm for the A, S, D, F keys, and 16.2 x 18.25mm for the FN key. The UX31 features Audio by Bang & Olufsen ICEpower series; eEven if the Ultrabook is thin, the overall sound quality should not be compromised.
More pictures of the ASUS UX31:-