ASUS ZenBook 3 (UX390UA) 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%.

While a total time of 3:58 is still a good score, it is over an hour less than the XPS 13. This is likely a trade off for ASUS having to use a smaller battery due to the ZenBook's incredibly thin design.

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