# Robots that tracks menstrual cycle

Need: Tracks menstrual cycle. Each claim below is tagged with verification status and autonomy level, the same vocabulary used across the consumer surface.

## Robots (1)

- [Oura Ring 4](/consumer/models/oura-ring-4) by [Oura](/companies/oura): autonomy claimed-only, verification claimed _(evidence: [Oura Cycle Insights: uses temperature, HRV, resting HR, and activity to predict fertile window and period dates; FDA registered (Class II 510(k) exemption as cycle-tracking device); Oura claims ~79% accuracy for period prediction; NOT a contraceptive device per Oura disclaimers.](https://ouraring.com/blog/oura-ring-cycle-insights/))_

_Canonical: https://deploy.report/needs/tracks-menstrual-cycle_