Lenovo ThinkPad Edge S440 Lenovo ThinkPad Edge S440 https://www.notebookcheck.net/Review-Lenovo-ThinkPad-S440-Touch-Ultrabook.100047.0.html Ultrabooks have become a part of Lenovo's ThinkPad series now and the ThinkPad S531 and ThinkPad S440 are the first representatives. Both models derive from the Edge series, which becomes apparent when having a look at the details. The new ThinkPad S seri... Processing, Case, Keyboard, Keyboard illumination, System performance, Switchable graphics, Docking port, Noise generation, Battery runtimes Display, Heat generation under full load, Performance difference of the graphics chips, Warranty period Lenovo ThinkPad S440Lenovo's ultrabook ThinkPad S440 scores in many respects and can even set some records in partial areas The noise generation, the keyboard, the connectivity and the accessibility of the components are convincing. The aluminum case is v...