Almost a decade since the release of the first Android device, Google is rapidly expanding this ecosystem by adding branches for specific categories of users and devices. After the Android One initiative that aims to provide a stock experience and very fast updates, Android Go comes with low-end handsets in mind. Although a set of Go apps is already available, the first Android Go phones will be revealed next week at MWC.
https://www.notebookcheck.net/First-Android-Go-devices-coming-at-MWC-2018.285108.0.html