Forehead ROI
Stopped
100% Edge Processing
No video leaves your device. Only anonymous HR metrics are sent to the API.
Camera Access Required
Nefesh measures heart rate via micro-changes in skin color using your device's camera.
- All rPPG processing runs locally in your browser
- Only numeric values (heart rate, HRV) are transmitted
- No video frames or facial data leave your device
- GDPR Art. 13 compliant
Environment Check
Verifying optimal conditions.
Camera access
Lighting
Face detection
Stability (5s)
Polar H10 Chest Strap
Not connected
How to connect your H10:
- Slightly moisten the electrode area of the strap
- Place the strap below your chest muscles — snug but comfortable
- Click "Connect" — your browser will show a pairing dialog
- Select "Polar H10 xxxxxxxx" from the list
- Wait 3-5 seconds for stable RR-intervals to be received
Browser Compatibility: Web Bluetooth is supported exclusively in Chromium browsers (Chrome, Edge, Opera). Firefox and Safari are NOT supported.
HR (Sensor)--bpm
RR Interval--ms
RRs Received0
Baevsky SI--
Camera
Polar H10
→
Edge rPPG Worker
→
Nefesh State API
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AI Context