The Oppo Watch 2 now supports several new features, courtesy of a ColorOS update. Currently restricted to the Chinese version of the smartwatch, the update enables an always-on display, ColorOS 12-style app icons and a calendar app, among other changes.
https://www.notebookcheck.net/Oppo-Watch-2-receives-numerous-new-features-in-China-with-extensive-ColorOS-update.600026.0.html