The Christmas Lights Watch Face is a festive watch face designed for Wear OS watches. However, it can also be used as a clock widget on mobile devices. The watch face features a clock widget without a second hand to conserve battery life. Users can choose from different design colors and enjoy a lights animation. It also displays the day, month, watch battery, mobile battery (requires phone app), and weather (requires phone app). The settings for the watch face can be found in the "Wear OS" app on the user's mobile device.

The watch face offers both free and premium settings. The free settings include choosing design colors on both the watch and mobile, defining the heartbeat frequency refresh rate, weather refresh rate, weather unit, and 12/24 hours mode. Users can also choose to display a leading zero on hours, display the brand name, and display or hide the seconds dots. The premium settings include choosing between four animations of lights, customizing the title, switching between different modes, choosing backgrounds, defining a secondary timezone, and more. The watch face also offers interactivity options, such as accessing detailed data by touching a widget and changing the displayed data.

Additional settings for the watch face can be found in the optional phone app, which provides more customization options and data. Users can switch between different card styles, choose weather providers, define manual or automatic location, receive notifications for new designs, and manage presets. The phone app allows users to save and load presets with all their options, as well as share and import presets.

To install the watch face, Wear OS 1.X users can rely on automatic installation from their paired phone. If it doesn't show up, they can go to the Wear OS App > Settings and Resync all apps. Wear OS 2.X users will receive a notification on their watch after installing the app on their mobile device. If the notification doesn't appear, they can search for the watch face on the Google Play Store on their watch. To use the watch face as a mobile clock widget, users can long press on their launcher and select the application widget to drop it on their home screen. The widget settings can be customized within the application.