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wearables

02Excellent

10/12

Quality Score

Oura

Ring Gen 3

$299+$6/month

sleep-trackingHRVring

99.9% accuracy for resting heart rate. Best sleep tracking among wearables. Ring form factor is more comfortable than wrist bands for sleep.

Score BreakdownModerate Evidence

Purity

Evidence

Transparency

Value

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Quality & Materials

Titanium ring with photoplethysmography sensors.

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Evidence & Testing

Consumer trackers are ~60% accurate for sleep staging vs lab. Good for trends, not absolutes.

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Brand Transparency

Extensive data available in app. API access.

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Value Assessment

$299 + $6/month. Premium but best sleep-focused tracker.

Why Not Alternatives?

Apple Watch is bulky for sleep. Whoop is better for athletes but worse for sleep. Oura excels at overnight recovery metrics.

More in Testing & Monitoring

01Gold Standard12/12

$40-50

Omron

3 Series BP7150

Only device on US Blood Pressure Validated Device Listing. 79% of upper-arm monitors sold online are NOT validated for accuracy.

01Gold Standard12/12

$199

Labcorp OnDemand

Labcorp is the gold standard for clinical accuracy because it utilizes venous blood draws at professional centers rather than finger-prick samples, which are prone to hemolysis and contamination. This test provides a comprehensive metabolic panel, lipid panel, and testosterone check with hospital-grade precision.

01Gold Standard11/12

$95

Thorne

Vitamin D Test

Thorne is a leader in clinical-grade diagnostics, offering a dried blood spot test that has been validated against traditional venous draws. Their reporting is exceptionally detailed, providing actionable insights beyond just a numerical value.