There's no thinner 10.1-inch tablet, according to Sony.
Sony's wedge-shaped Xperia Tablet S didn't exactly take the Android tablet market by storm, and truth be told, we don't think the Xperia Tablet Z will either, though it's an interesting slate. The Xperia Tablet Z, which is now available to pre-order for $500 on Sony's website, is supposedly the world's thinnest 10.1-inch slate measuring just 0.27 inches thick and weighing barely more than a pound (1.09 pounds, to be precise).
Technically speaking, Sony's newly unveiled Xperia Tablet Z is ever-so-slightly skinnier than Apple's iPad mini, measuring a scant 6.9 millimeters thin versus 7.2 millimeters. The difference in depth isn't exactly splitting hairs, which is measured in micrometers, but for all intents and purposes, the two tablets are comparable in thickness, or lack thereof. Unlike the iPad, however, Sony's tablet isn't afraid of a little water.