A joint study between Samsung and Chung-Ang University Gwangmyeong Hospital in Korea announced a clinical breakthrough in fainting prediction using the Galaxy Watch6. The research, published in the European Heart Journal – Digital Health, marks the first time a commercial smartwatch has demonstrated the ability to predict vasovagal syncope (VVS) ahead of an episode.
Vasovagal syncope occurs when heart rate and blood pressure drop abruptly, causing temporary loss of consciousness. While the episode itself is rarely life-threatening, the resulting falls can cause fractures or concussions.
The study observed 132 patients with suspected VVS symptoms during induced fainting tests. A Galaxy Watch6 equipped with a photoplethysmography (PPG) sensor recorded heart rate variability (HRV) data, which an AI algorithm then analysed. The model predicted fainting up to five minutes in advance with 84.6 percent accuracy, achieving a sensitivity of 90 percent and a specificity of 64 percent.
Jongmin Choi, Head of Health R&D Group at Samsung Electronics’ MX Business, said the study proves how wearable technology can shift healthcare from post-care to preventive care.
Samsung plans to expand collaboration with medical institutions and advance the health monitoring capabilities of its wearable portfolio.
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