Vivo is rumored to launch its camera-centric successors to the X50 line of phones soon, perhaps before 2020 is out. These devices are also now thought to introduce a new Android skin developed by this company. This "Origin OS" is now slated to have the quality necessary to challenge rivals from OnePlus or Samsung.
https://www.notebookcheck.net/Vivo-will-unveil-a-new-Android-skin-along-with-the-X60-series.499392.0.html