Health library
Straight answers about camera-based health checks
Explore how camera health scans work, what the markers mean, how to get a consistent result and when to confirm an estimate.
What is a camera-based health scan?
A plain-English guide to how a phone or laptop camera can estimate selected vital signs, what the results mean and where the limits are.
Read guide →Guide 02Can a phone camera estimate heart rate and blood pressure?
What camera-based estimates can—and cannot—tell you about heart rate and blood pressure.
Read guide →Guide 03How remote photoplethysmography—or rPPG—works
The science behind reading a pulse signal from ordinary facial video, explained without the jargon.
Read guide →Guide 04Camera blood-pressure estimates versus an upper-arm monitor
Why a camera estimate and a cuff reading are different, and when to confirm a result.
Read guide →Guide 05How to get a more consistent face-scan result
Simple preparation and camera tips for a cleaner, more comparable health check-in.
Read guide →Guide 06Why health trends matter more than one isolated reading
How repeated, comparable check-ins can add context—and why more data is not always better.
Read guide →Guide 07Track your health without a smartwatch or wearable
A practical approach to building a health-check routine using the camera you already have.
Read guide →Guide 08What happens to your camera data during a 30 Second Vitals scan?
How camera access, scan results and account information fit together.
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