ASUS launched its flagship Zenfone 5Z (ZS620KL) smartphone in India back in July running Android Oreo with ZenUI 5.0. Today the company has confirmed that it will roll out the Android 9.0 (Pie) update for the smartphone by the end of January 2019. It also said that the update will be rolled out in a phased manner to avoid update server congestion.
Users will get a notification when the update is available. They can also check for the update manually by going to Settings > System > System Updates > Check for Updates.
The latest Android Pie update brings several new features, including Adaptive Battery that uses machine learning to prioritize system resources for the apps, App Actions that helps you raise the visibility of your app and help drive engagement using machine learning, Slices are a new way to surface rich, templated content in places like Google Search and Assistant, all-new contextual pop-up volume bar, new Magnifier feature for easier copy-and-paste and lots more.
We will let you know once the the update starts rolling out for the smartphone.