http://hothardware.com/Reviews/Lenovo-Yoga-2-Pro-Review/ - The new Lenovo Yoga 2 Pro is thinner and lighter than previous models. It also features Intel's latest 4th generation Haswell processors and comes preloaded with Windows 8.1. Another key differentiating factor between the previous Yoga 13 and the new Yoga 2 Pro is the super high-resolution QHD+ touchscreen that is 16% brighter than the previous display.