ASUS ZenBook UX430UA Ultrabook Review

To test the battery life of a laptop, we use PCMark 8’s in-built battery benchmark – which loops its ‘Home’ benchmark until the battery fails. We do this with the screen brightness set at 50%.

The ZenBook UX430UA's overall battery life is a distinct improvement over the UX390UA, offering a useful 45 more minutes and falling just 17 minutes shy of five ours. This is still 39 minutes behind the Dell XPS 13, but in everyday use, which probably won't be as intensive as this test, you should be able to get a full seven-hour working day from the UX430UA on one charge, or more.

That's what you need from an ultraportable, although if you want the ultimate time away from the power socket, the Dell XPS 13 is still the king.

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