O-Xyde Watch Face is a free clock widget for Wear OS, developed by thema. It boasts an array of features such as the ability to choose design colors, define a secondary timezone for digital display, and display daily step count. Other features include unread SMS, unread email from Gmail, missed calls, and weather. The watch face also offers presets and complication (wear 2.0).

Additionally, the settings for the watch face can be found in the "Wear OS" app on your mobile device. You can customize the ambient mode b&w and eco luminosity, weather provider, and display leading zero on hours. The application also offers premium settings such as choosing your own title in place of "O-XYDE," switching between eco/simple b&w/full ambient mode, and blending background with colors.

It should be noted that this application is not compatible with Samsung Gear S2/Gear S3/Galaxy Watch running Tizen OS. However, it can still be used as a clock widget on your mobile device.