ThinkPad X series the presence of a 12.1-inch Thin-film transistor (TFT LCD) display. These design values – thin and light – continued to be a part of the ThinkPad X-series laptops even after the purchase of IBM’s Personal Computing Division by Lenovo. The first X Series ThinkPad released by Lenovo was the X41 in 2005. The ThinkPad X-series laptops from Lenovo were described by Trusted Reviews as combining an ultraportable's weight and form factor with a durable design. The X-series laptops include traditional ultraportables, as well as convertible tablet designs. According to Lenovo, the ThinkPad X-series laptops include low power processors, offer long
ThinkPad Tablet take advantage of the Tablet's touch capabilities. This feature could be used to transfer data between USB devices, internal storage, or an SD card. Slashgear summarized the ThinkPad Tablet by saying, "The stylus and the styling add up to a distinctive slate that doesn’t merely attempt to ape Apple’s iPad." The ThinkPad Tablet was discontinued upon the launch of the Windows 8-based ThinkPad Tablet 2 in October 2012. At the same time, Lenovo discontinued the use of Android on its ThinkPad-branded tablets; subsequent models, beginning with the Tablet 2, have exclusively used Windows as their operating system. David Hill of