Cardia - HRR and HRV — ASO

By Ashish Koirala on AppTrack Ninja.

HR & HRV with just your camera

Your heart rate. And your rhythm. No watch required. Cardia turns your iPhone’s camera and flash into a pulse sensor. Rest a fingertip over the lens and the flash, hold still for about 20 seconds, and get two numbers: heart rate (BPM) and heart rate variability (RMSSD). HOW IT WORKS Light from the flash passes through your fingertip. Each heartbeat shifts its colour, and the camera reads that rhythm using a technique called photoplethysmography (PPG). Cardia saves a number only when two independent methods agree on it. Nothing is recorded, and video never leaves your phone. WHAT YOU GET • Hea…

Categories: Health & Fitness, Productivity

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