Cardiologists note that smartwatches can serve as an early warning tool by tracking vital parameters like heart rate and blood oxygen, but they cannot replace a medical diagnosis.
Experts recommend consulting a doctor if a resting heart rate is repeatedly higher than normal, especially when accompanied by symptoms such as breathlessness, dizziness, fatigue, or chest discomfort.
While single-lead ECGs on smartwatches can identify patterns suggestive of atrial fibrillation, they have limitations and should be used to complement professional medical evaluation.