Smartwatches show high accuracy in detecting atrial fibrillation

Medical experts and the Deutsche Herzstiftung have highlighted the clinical significance of smartwatches in detecting atrial fibrillation. Modern wearables can identify this heart rhythm disorder with an accuracy rate exceeding 90 percent using infrared photoplethysmography (PPG) and integrated single-channel electrocardiograms (EKG).

Cardiologists note that these devices are particularly useful for detecting irregularities that occur during rest or at night, when professional EKG monitoring is typically unavailable. However, experts emphasize that these devices are screening tools and cannot replace a professional medical diagnosis. They are not capable of detecting heart attacks or vascular blockages.

For reliable results, the Deutsche Herzstiftung recommends consumers look for CE marking as a medical device. Users are advised to wear the device approximately one finger-width above the wrist bone and to perform EKG readings while in a state of rest. While manufacturers aim for FDA and CE approvals for their algorithms, final diagnoses must be made by medical specialists.