- Tap Start Measuring and allow camera access.
- Place your index fingertip firmly over the rear camera (or front if rear unavailable).
- On mobile, turn on the Torch for a strong red signal.
- Stay still for 15–20 seconds. The guide box turns green when a clean pulse is detected.
- BPM, HRV, Stress and SpO₂ update continuously once signal quality is good.
This is an optical biometric demo, not a medical device. Results vary with lighting, pressure and camera quality.