Ava is a clinically tested device that uses sensor technology to reveal what's really happening with your cycle—whether you're trying to conceive, pregnant, or just want to better understand your body. Worn only during sleep, Ava eliminates the guesswork around tracking your cycle.

Now with an upgraded, watch-style strap
Syncs with iPhone and Android. Tested for cycles 24 – 35 days. Not tested for PCOS.