The Leaf is a sleep, activity and reproductive health monitor that helps you cope with stress through built-in breathing exercises. This smart piece of jewelry works as a tracking system for your health and provides insights and helpful reminders to keep you on track. Monthly cycles (fertile days, ovulation, period, and contraception intake) are tracked through the app so that you can have greater awareness of your reproductive health. It can be worn as a necklace, a bracelet, or a clip. The Leaf syncs with the app and all of your data is transferred wirelessly. It also vibrates to remind the user to either be more active based on her set preferences.