Google Glass is completely unrelated technology to AR. That was a 2D HUD - the equivalent of a smartwatch for your face.

There are very few attempts so far that get close to a pair of sunglasses with AR, and those that do have severe limitations. Snap's AR spectacles only has a 30 minute battery life, Vuzix Shield is only monochrome, and Nreal Light is tethered. All of these have a tiny field of view, and the only known way to achieve a large field of view with AR thus far is a much larger/bulkier device.

Seriously, if you think this is bulky, look at what a very wide FoV AR device looks like: https://www.roadtovr.com/wp-content/uploads/2018/04/leap-motion-projet-northstar-3.jpg