Watch Face Studio is a graphic authoring tool that enables you to create watch faces for the Wear OS smartwatch ecosystem. This includes watches like the Galaxy Watch4, 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. You can also test the watch face on a connected device. Watch Face Studio supports watch faces for the Galaxy Watch 4 and other watch devices that run Wear OS targeting API level 28+.