It wasn't easy writing a conclusion (much less a headline) for our original Acer Aspire S7-391 review. The company's third Ultrabook was near-perfect, with a stunning full HD display, exceptionally fast performance, an extra-light chassis and one of the most sophisticated designs we'd seen on any Acer machine, ever. Even so, the battery could barely last past the four-hour mark -- a poor showing, even compared to other machines on the market. Plus, the fan noise was some of the loudest we'd heard, so you couldn't enjoy that blazing SSD without a good deal of distraction. We ultimately recommended it, but with a sigh. This wasn't the Ultrabook we thought it would be.
Fortunately for us, we no longer have to hem and haw over whether to recommend an exquisite laptop with worst-in-class battery life: Acer recently released an update to the S7, aptly called the S7-392. Available with a 13-inch screen (the 11-inch version has been discontinued), it arrives with Haswell processors, a larger battery and the promise of seven-hour runtime. Additionally, Acer retooled its cooling setup so that the fans supposedly operate much more quietly. Otherwise, it's the same laptop: same keyboard, same thin and light design, same 1080p screen. So can we crown it a winner now?
