Ava 2.0 is the improved version of our clinically proven fertility tracking bracelet. It comes with a sleeker strap, optimized sensor pod for better performance and comfort, and a vibrating alarm. It uses sensor technology to reveal what’s really happening with your cycle—whether you’re trying to conceive, are pregnant, or simply want to better understand your body. Worn only during sleep, Ava eliminates the guesswork around tracking your cycle. Syncs with iPhone and Android. Tested for cycles 24 – 35 days. Not tested for PCOS.