Would you be spending money to buy the finger based ring that tracks your fitness parameters?

It is too costly and the data would be collected for absolutely nothing. I could always whip up my phone to collect data regarding how many steps I took on a day and on top of that, why would I spend on the ring?

The ring, I think, is a deliberate ploy to capture more beauty conscious female customers, people who prefer not to wear a smart watch and also to introduce a new product in the amrket that does nothing but help build brand image and harvest some recognition. 

What do you guys think?