My New Ring?

A few months ago, wearables became a common topic of conversation. As a watch wearer, I was excited but all the options were terrible (e.g. too bulky, terrible interface, short battery life). And thinking about other wearables, I was confused why tech rings weren't more popular. After looking there were not many options; and there weren't any attractive rings.

But recently, MOTA smart ring came on IndieGoGo. It looks cool but seems like it's trying to do too much. Imagine reading a long email on the hand... Or even the subject of an email. In my mind, I would like to see a small ring that simply vibrates to alert me when I have a notification (maybe have a tiny screen to show which type of notification I received. Maybe NFC).

And they have some work on marketing too; I'm not sure how many people would use this ring as their wedding ring... (I'm a tech freak but still wouldn't go THAT far...)

I don't know how the sizes work and I can't find any information on it. This would probably be the hardest aspect about making tech rings.