Considering the name "Optical Bridge technology", I'm guessing this is yet another company trying to use the slightly different absorption curves for water vs.

Considering the name "Optical Bridge technology", I'm guessing this is yet another company trying to use the slightly different absorption curves for water vs. water-with-dissolved-glucose? This is not a new idea; I've seen lots of companies try this and fail because they (a) weren't accurate enough, (b) needed frequent recalibration, (c) were thrown off by exercise, dehydration, or common medicines, or (d) all of the above. I'd love to see such a product become available, but I've learned not to hold my breath.