The Luna Ring is a smart ring designed to silently monitor you 24*7 and tell you how to become your most efficient self. It is a high precision device that tracks Sleep metrics, Heart Health, Activity Data and helps you understand your readiness and stress.
Please don't buy this product. Worst ring . I have bought Luna ring size 12. But some functions not working. I have contacts many time their customer care center but no response. Please please don't buy Luna ring.
Very accurate data for sleep tracking, the build quality is robust and I have been able to use this in my workouts without any product damage or scratches.
Highly recommended.