WatchFaceStudio is a graphic authoring tool made by Samsung that enables you to create watch faces for the Wear OS smartwatch ecosystem. This includes watches like the Galaxy Watch 4, which runs Wear OS Powered by Samsung.
It offers a simple and intuitive way to add images and components, and to configure the watch movement.
In this series of tutorials, you'll learn to create a Watch Face for WearOS smartwatches from scratch, in the end of this series, you'll be capable of making watch faces with a lot of interesting features (including complications, animations, progress bars and more !)
Note : There are also tutorials for Galaxy Watch Studio (Watch Faces for Tizen OS smartwatches) and Theme Studio (Watch Faces for Huawei and Honor watches)