ASUS launched the Zenfone Max Pro M1 in April and its flagship Zenfone 5Z (ZS620KL) smartphone in July in India running on Android Oreo with ZenUI 5.0. Last month it has confirmed that the Zenfone 5Z will get the update by the end of January 2019.
Today at the Zenfone Max Pro M2 and Max M2 launch event, the company confirmed that the Max Pro M2 will get the Pie update in January, and the Max Pro M1 will get the update in February 2019.
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.
We will let you know once the the update starts rolling out for these smartphones.