Is heart rate monitoring on earbuds actually viable? I tested two pairs, and here's my advice

Beats and Apple each released flagship earbuds in 2025 with one standout feature: in-ear heart rate monitoring. Since Apple ...
IEEE

Deep PPG: Improving Heart Rate Estimates with Activity Prediction

Abstract: Photoplethysmography (PPG) offers a cost-effective, non-invasive method for heart rate measurement by analyzing blood volume changes at the skin surface. While PPG technology has advanced to ...

How to use the ECG app on your Apple Watch to monitor your heart health

You can use the ECG app on your Apple Watch to monitor your heart rate and detect irregularities, in which case you should notify your doctor.
Technowize

Wi-Fi Signals Can Now Detect Your Heartbeat

Wi‑Fi heart monitoring offers contactless, non-invasive vitals tracking using existing networks for homes, hospitals, and ...