According to reports, a 2022 release is on the table for Google's first smartwatch. However, expect to charge the Pixel Watch daily and to shell out over US$300 for a smartwatch that has proprietary straps.
https://www.notebookcheck.net/Pixel-Watch-Google-s-first-smartwatch-will-not-be-priced-as-aggressively-as-the-Pixel-6-or-the-Pixel-6-Pro.582707.0.html