The new 15-inch ultrabook offers a lot of features but doesn't benefit from Intel's latest generation of processors
http://www.notebookcheck.net/Lenovo-launches-the-S531-ultrabook-in-London.94786.0.html
OMG! "180-degree open angle" is not 360* as Yoga! About 90% of Thinkpads can do 180*. Dont shame yourself.
OMG! "500 GB internal memory". A NBC editor still using the word memory to refer to storage in 2013. Now I see how half the people who use a computer use the same word for RAM and for storage. You shamed yourself again.