If you have still not recovered from the shock of Sony discontinuing its Z series, then it’s time to cheer up since Sony has just announced two flagship Ultrabooks which will surely compensate your loss of Z series. Vaio Pro 11 and Vaio Pro 13 are the two new models each weighing less than the Z series at 1.92 and 2.34 pounds respectively. In fact Sony confesses that it’s virtually the lightest touch screen Ultrabooks ever made. They last much longer on battery life and have an additional sheet battery that promises to double the battery life, giving 14 hours for Pro 11 and 13 hours of usage on Pro 13. Presuming both are faster having Haswell Processors.