Wrist Biosensor Intelligence
Your wrist already tracks your cycle. Clair Health reads it.
Upload data from your existing biosensor. Clair Health's inference model maps your hormone phase day by day, turning raw wrist signals into a daily cycle interpretation.
The Problem
Biosensors generate rich data. Most apps ignore 90% of it.
Wrist temperature drifts 0.4C across phases
Most wearables record it. Almost no app decodes what those sub-degree shifts actually mean for your reproductive cycle.
HRV patterns encode luteal-follicular transitions
Heart rate variability changes measurably with estrogen and progesterone flux. Clair Health extracts that signal using a multi-channel LSTM architecture trained on a hormone-confirmed dataset.
Confidence intervals matter clinically
Cycle-tracking apps give a binary answer. Clair Health gives probabilities across all four phases so you and your clinician can reason about uncertainty.
How It Works
From raw wrist data to cycle intelligence in three steps
Export your biosensor data
Connect your existing Apple Watch, Garmin, Oura Ring, or Fitbit. Clair Health accepts standard CSV exports and direct API syncs. No new hardware. No app replacement.
LSTM model decodes your signal
Our multi-signal LSTM architecture analyzes wrist temperature, HRV, resting heart rate, and sleep staging together. It was trained on a clinically-labeled dataset with serum hormone confirmation on every cycle.
Get calibrated phase predictions
Receive daily cycle phase probabilities with confidence intervals. Share structured clinical reports with your care team. Track longitudinal trends across multiple cycles.
Signal Architecture
How four biosensor streams become one cycle prediction
Pricing
Start free. Upgrade when it matters.
Core cycle phase predictions for self-trackers. Connect one device, see daily phase probabilities.
- Daily phase prediction
- One biosensor device
- 90-day history
- Basic confidence score
Full confidence intervals, unlimited history, and PDF clinical reports to share with your care team.
- Everything in Personal
- Full confidence intervals
- Unlimited cycle history
- PDF clinical reports
- Up to 3 devices
- Email to clinician
EHR-integrated dashboard for fertility clinics and reproductive endocrinologists. Structured reporting for every patient.
- Everything in Cycle+
- Clinic dashboard
- EHR data export (HL7 FHIR)
- Unlimited patients
- Batch reporting
- Dedicated support
Early Access
Be first to know when Clair Health opens
We're onboarding early-access users in cohorts. Enter your email and we'll reach you when your spot is ready - no spam, one email.