Not sure if it is an ultrabook but I am extremely happy with my Fujitsu Lifebook S904. Put Archlinux on it and it works fantastically well. Great battery life a

Not sure if it is an ultrabook but I am extremely happy with my Fujitsu Lifebook S904. Put Archlinux on it and it works fantastically well. Great battery life and performance. Only problem is its HiDPI screen which way too much software cannot handle (Hi Java!).