As a Meta Ray Ban owner my biggest takeaway is that these glasses shouldn't have a CPU. They should be a dumb camera, mic, and speakers for my phone.
Interacting with Gemini on my phone would be the ideal product here, but of course that means Meta doesn't reap any of the data rewards.
So of course, since they don't make the phone in your pocket, they're strapping a device to your head and everyone pays the price of a big battery, CPU, and RAM in a sunglass form factor.
They're a remarkable product, but again, "dumb" glasses that just serve the I/O directly to your phone would be an incredible product. I wish Google or someone else would make them.