For the most part, you should be able to find a bunch of watch faces already preinstalled on your device, but you can find many more great options in the Google Play Store and third-party services. No matter what package of smart watch you buy, you can mix and match in the watch face. We've picked out some of the more popular related watch faces that you can download directly from any Wear OS watch if you're running Wear 2.0 or higher. Below is a summary of some of the more popular watch faces for reference.
The first: Bubble Cloud Wear OS Launcher
This bubble-based watch face brings a little Apple Watch makeover to your Wear OS smart watch, turning your app shortcuts into little floating circles that let you customize the interface in many different ways. Apps can also be categorized into folders if desired.
Second: Dots
Dots just put the time element into the circle and allow you to add an additional dot to show the battery status. There are plenty of theme colors to choose from, and this is a truly great operator if you care too much time wrapping your screen with tons of complications.
Third: Ultra
Not only does the Ultra pack a ton of information on your smart watch screen, but it manages to look cool and trendy while doing so. Integrate with Google Fit to display stats and you can even count your coffee cups on it. Some features are locked behind premium upgrades, but there's plenty to enjoy for free, including weather and battery widgets.