As of late-May 2019, Asus announced their updated mainstream ZenBook line, laptops you’ll find in stores in the second part of 2019 and the first part of 2020.

The update affects the entire lineup of 13 (ZenBook UX334), 14 (ZenBook UX434) and 15-inch (ZenBook UX534) devices, with a hardware refresh and new graphics chips, faster storage and wireless, as well as the implementation of a multifunctional ScreenPad across the entire range, a feature we’ve previously seen on the higher-tier ZenBook Pro UX580.
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https://www.ultrabookreview.com/27493-asus-zenbook-13-ux334-14-ux434-and-15-ux534-what-to-expect/