The Motiv Ring is a sleep and activity tracker you can wear around your finger
That's just enough hardware to measure time spent active (in minutes), your active and resting heart rate, burned calories, steps, and sleep duration. Of course, this data will be shown on your connected phone, so the Motiv Ring isn't wholly self-sufficient. But the paired app (iOS only at launch, on Android later) looks useful and visually pleasing, turning those dry statistics into clean and colorful diagrams.
The Motiv Ring is being prep'd for a March release. It will be available in two colors (slate and rose gold) and seven sizes. Should you decide to pre-order for the "better-think-about-that" price of $199, Motiv will send you a sizing set before they are ready to ship, which is a smart way of going about this. Hopefully, the three years of research and development behind the Motiv Ring will result in a product that delivers on its potential.