VOS is a customized mobile operating system from Android. Like Samsung or OPPO, Vsmart designs VOS to provide a convenient experience that best suits the needs and preferences of Vietnamese users.
In the early days, VOS was said to be quite boring when there were few features and interface too simple, pure Android stock.
However, Vsmart has very quickly improved its user interface, added new features through many upgrades. And most recently, in December 2019, VOS 2.5 version was officially released, bringing many great strides to this platform.