The Oura Ring can sync with the Natural Cycles app to help you track your menstrual cycle using your body’s natural temperature patterns. By measuring subtle temperature changes while you sleep, it can help predict fertile windows and cycle phases with impressive accuracy — no manual tracking required.

The Oura Ring monitors your sleep, heart rate, temperature, stress, and activity to help you understand your body in real time. It also connects with Natural Cycles for effortless period and fertility tracking — no logging or guesswork required.

The Oura Ring tracks your body’s key signals — like temperature, heart rate, and movement — through advanced sensors built into a lightweight ring. It uses that data to give you deep insights into your sleep, recovery, stress, and cycle patterns, helping you understand how your body’s working beneath the surface.