Health tools
Wearable Synthesis
Compare your own wearable records
Enter the measurements you have. Enter zero when the measured value is zero; leave unknown fields blank. Values stay in this page; they are not saved or submitted.
Your comparison
Enter at least one latest measurement to see results.
Interpretation and limits
Compare records taken under similar conditions. A numerical change does not establish a change in disease risk.
Sleep duration is compared with CDC age-specific guidance. Duration alone does not establish sleep quality or diagnose a disorder.
Use comparable averages, such as two separate seven-day averages from the same device. HRV algorithms and units differ between devices. The tool shows personal changes without inferring recovery readiness or assigning universal HRV/step thresholds.
No biological-age years, survival probabilities or overall health score are calculated. Domain scores, where shown, describe progress toward an explicit guideline target. They are not calibrated risk predictions.
Sources and calculation details
Checked October 3, 2026. Absolute change is latest minus earlier. Percentage change divides by the absolute earlier value and is omitted for zero baselines. Activity uses moderate minutes plus twice vigorous minutes, divided by 150; strength uses days divided by two. Displayed target coverage is capped at 100% without implying extra activity lacks benefit. Dates describe records, not annualized rates.
Educational information, not diagnosis or individualized treatment advice. Review results and testing plans with a qualified clinician.