According to 9to5google, "This “small-scale testing” in public (versus inside labs) involves  prototypes that “look like normal glasses with an in-lens display,”  camera, and microphone.

 The goal is to “ensure device durability, optimize user experiences and improve overall helpfulness of potential smart glasses.”

Testing in the US began this August and involved a “few dozen Googlers and select trusted testers.” In November, Google AR will “extend this small-scale testing with select Googlers in Waterloo and  Toronto, Canada under the same privacy and safety measures originally  outlined.”

The Kitchener-Waterloo region is notable as that’s where Focals marker North, which Google acquired in 2020, is located. It’s also home to “Google’s biggest R&D office in Canada.”

More here on 9to5google