Meet the Bellabeat Ivy: a smart health tracking jewelry made with women in mind. It has smart sensors to track heart rate, HRV, stress, sleep quality and light/deep/REM sleep. It tracks body’s bio-responses, so users can see how their body is reacting to their lifestyle.
Ivy lasts up to 20 days on battery. It continuously tracks movement and heart rate and combines with an app to give users insight into their health and sleep quality. Ivy is water resistant too. According to the company, the first units will ship by end of January.[where to get it]