This inconspicuous pair of glasses might just be the first fitness tracker I actually want to wear - here's how it works

I've been waiting for the perfect fitness tracker. I'm into the concept, but I don't like wearing a watch all day every day.

Ideally, a fitness tracker wouldn't get in my way while I type, and would be something I wouldn't mind wearing on a daily basis. It wouldn't feel like a chore to wear, and I wouldn't have issues remembering to wear it in the first place.

So I was intrigued when VSP Global, a network of eye-care companies, came out with a fitness tracker in the form of prescription glasses. The Level smart glasses are starting to roll out in select areas, and - since eyewear is having a bit of a moment in terms of style and affordability - they couldn't have come at a better time.

Here's a look at the Level smart glasses and how they do what they do: