First, you'll need to have a newer Pixel phone. Anything from a Pixel 6 and newer should work. From there, it's simple. Just go to google.com/android/beta and opt-in, using the device on which you want to use the beta. Once you enroll, you'll get updates as a part of the beta. From there, you can test all the new features.

Development on Android 16 is progressing quickly, and ahead of the projected l ate spring/early summer arrival Google has just released the very first beta version. Unlike Apple, which splits up public and developer betas, Android 16 beta is available to everyone — provided they have an eligible Pixel device.