May 17 2011 review by anandtech

The Lenovo ThinkPad X1, is an ultraportable notebook that turns out to pack some suprises in its svelte frame. Measuring 16.5mm at its thinnest (the front edge) and 21.5mm at its thickest (the back edge) the X1 is not the thinnest laptop on the market, but it could be the thinnest with a Sandy Bridge mobile processor. The 13.3" screen is optimized for travelers with a pane of Corning's Gorilla Glass covering its TN-panel and peaking at a reported 350 nits at a resolution of 1366x768.

The X1 adopts the chiclet keyboard first implemented in the ThinkPad Edge 13; while the previous ThinkPad keyboards have been lauded since before the line was acquired by Lenovo from IBM, Lenovo has been able to drasticaly altered its keyboards form factor without diminishing its effectiveness.