Samsung Galaxy A7 (2018) start receiving Android 9 Pie stable update with One UI Samsung, has finally launched the Galaxy A7 2018 Android 9.0 Pie One UI stable build, in Poland and Russia. Soon it will start rolling in other regions. Well, One UI is the new interface developed by Samsung for their all supported device. It is currently started with the base of Android Pie, which brings new and enhanced One UI interface design, along with many new features and customizations. The main features of One UI, are one-handed usage and other features