We’ve seen leaked screenshots of Android Oreo for the ZenFone 3 and 4 a week ago and now it seems that does signal that the update is coming sooner. An ASUS forum moderator that goes by the handle Green1_ASUS has all but confirmed that the ZenFone 4, specifically the ZE554KL. According to the post, which was originally written in Chinese and translated, “Hi andymazda, ZE554KL is currently expected to provide upgrades in December Android O…”
If this is true, then ZenFone 4 users will gain access to many Android 8.0 features like picture-in-picture mode, notification channels and dots, smart text selection, and many more.
Source: Android Authority