According to Android Police, the two smartwatches are codenamed Angelfish and Swordfish and are supposed to use the Google assistant artificial intelligence "bot".
The Angelfish is larger, features LTE connectivity, built-in GPS, and a heart rate monitor, so it's got everything necessary for a little independence from your smartphone.
The watch design features three buttons and it is not clear what two of them might do.
The smaller, thinner Swordfish watch has a look that resembles the Pebble Time Round, with less bezel surrounding the circular display. It's got just a single button, and might ship without the LTE, GPS, and heart rate sensor.
At the moment it is not clear when and if Google will unveil the smartwatches. Google has a habit of making concept designs and then forgetting all about them. It would make sense that they would arrive with the new Nexus phones and the launch of Android Wear 2.0.