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No. Cardiom is designed around the cameras already built into your iPhone. You can also add readings from devices you use separately, such as a blood-pressure cuff or pulse oximeter.
Those values are entered manually from a dedicated device or another trusted source. Cardiom does not claim to measure them through the camera.
Finger PPG is a contact check-in: you place a fingertip over the rear camera and flash so Cardiom can read light changes from blood flow. Face rPPG is contactless — the front camera scans your face and detects tiny colour changes linked to your pulse. Cardiom labels each method and lets you compare Finger and Face trends separately.
Yes. Choose Face rPPG for a contactless reading. Keep your face in the guide, use even light from in front of you, and stay still. Soft daylight or a lamp in front of your face usually works better than strong light from behind.
HRV details appear only when a session contains a suitable beat-to-beat signal. The 7-day Stress Index unlocks after check-ins on seven distinct days so it can reflect a longer pattern.
No. Cardiom is a personal wellness tracker. It does not diagnose, treat or replace professional medical advice, validated devices or emergency care.
Yes. Cardiom includes data controls, account sync, deletion options and downloadable wellness reports. Our Privacy Policy explains how each category is handled.