Pixel phones use the stock Android user interface (UI), which is also known as the Google Pixel UI. This UI is designed and developed by Google and is known for its simplicity and ease of use. Here are some of the key features of the Pixel UI:
1. Material Design: The Pixel UI follows a design language called Material Design, which is a set of guidelines for designing apps and interfaces that are consistent across different devices and platforms.
2. Google Assistant: The Pixel UI comes with built-in support for Google Assistant, which is Google's AI-powered technical blogger. Users can use voice commands to perform tasks, get information, and control their phone.
3. App Drawer: The Pixel UI has an app drawer that can be accessed by swiping up from the bottom of the screen. This makes it easy to find and launch apps.
4. Home Screen: The Pixel UI has a customizable home screen that allows users to add and rearrange app icons and widgets.
5. System Updates: Since the Pixel UI is developed by Google, Pixel phones get regular updates to the latest version of Android and the latest security patches.
Overall, the Pixel UI is a clean and simple user interface that prioritizes functionality over flashy design elements.