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Fertility-tracking wearable · Band / strap · by Ava
Ava Bracelet
An FDA-cleared fertility bracelet that predicts the fertile window from five overnight physiological signals.
2016Ava Bracelet (FDA-cleared)
Late in cycle9 yr 11 mo old
API access: No Raw data access: No Open source: No public repo
Clinical value
48/100
FDA-cleared fertile-window
Empowerment
40/100
App-centric data
Everyday value
58/100
Overnight wrist wear
A wrist-worn fertility tracker that measures resting pulse, skin temperature, HRV, perfusion and respiration overnight to predict the fertile window, cleared by the FDA and evaluated at about 90% accuracy for fertile-window detection.
What it measures
Overnight resting pulse, skin temperature, heart-rate variability, perfusion and breathing rate, fused into fertile-window predictions.
Regulatory status
FDA-cleared for fertile-window prediction.
Validation & accuracy
Evaluated at ~90% accuracy for the fertile window; peer-reviewed work notes limitations in absolute sleep and heart-rate equivalence, and wrist optics carry environmental noise.
Data control & export
Raw data: restricted — metrics and predictions live in the Ava app with limited export.
Wearability & battery
Worn on the wrist overnight; comfortable but a single-purpose, mainly-nighttime device.
Cost & access
Consumer pricing, sometimes with subscription tiers.
Who it serves
People trying to conceive who want a hands-off, cleared fertile-window predictor.
Who is left out or burdened
Wrist site adds noise; app-locked data; narrow purpose.
✓ Strengths
- FDA-cleared fertile-window prediction
- Five overnight physiological signals
- ~90% fertile-window accuracy
- Hands-off overnight tracking
✕ Weaknesses
- Wrist site adds environmental noise
- App-locked data
- Single-purpose
- Sleep/HR equivalence limits
48
Why this clinical score. FDA clearance for fertile-window prediction lifts the clinical score, tempered by wrist-site noise and narrow scope.
40
Why this empowerment score. App-centric data with limited export holds empowerment mid.
58
Why this everyday score. Comfortable overnight wear with a clear single purpose gives solid everyday value for its users.
Latest news
Reviews & coverage
Reviewers credit Ava as an early, FDA-cleared fertility wearable that conveniently predicts the fertile window from overnight signals at around 90% accuracy. Critiques note wrist-site noise, limited data export and a single-purpose scope.
Summary is a draft synthesis of public coverage, not an endorsement. Links open a search of each outlet.
Reddit communities
Independent user communities where this device (or its category) is discussed.
Get it · manuals & support
Draft profile · public-source review, June 2026 · scores describe direction and degree, not buying advice. News, links, and prices change — verify with the manufacturer. Image is representative.