Well done, Asus. Until recently, Asus has been using Core M processors in their Zenbook UX305 models. However, the manufacturer now has greater aspirations. By adding new Core i7 processors to the series, Asus hopes to compete with the MacBook Air 13. Even with its stronger CPU, the Zenbook's battery life has improved. It just goes to show that in the wrestling ring of the computer world, sometimes it is not a disadvantage for a battery to put on some weight.