Our recent review of the Tecra X50 from Dynabook showed the sleek business Ultrabook to be quite the looker with little substance. Disappointing performance topped off with poor battery life leaves the Dynabook Tecra X50 wanting. There are much better options available.
https://www.notebookcheck.net/Dynabook-Tecra-X50-Killer-style-weak-battery.441210.0.html