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 Helix 13.3-inch Ultrabooks, such as the Acer Aspire S7. Of course, the Helix is a hybrid device that can be used in more ways than one--you aren't saddled with the keyboard like a laptop." Chang concluded, "With a starting price of US$1,499, the ThinkPad Helix is pretty expensive, even for Ultrabook convertibles. However, its business slant means that companies, which can afford the premium price for the extra security and enterprise features, are most likely the ones to purchase the Helix." In another review published by "CNET" editors wrote, "There's a lot to like about the Lenovo ThinkPad Helix. The engineers