Hypertension notifications available today on Apple Watch - Apple (IN)
From December 3, 2025, users in India can access a new hypertension-notification feature on their Apple Watch. This function monitors subtle signals from the watch’s optical heart sensor over a 30-day period to identify patterns linked to prolonged high blood pressure. Though it doesn’t provide an instant blood pressure reading, the watch flags possible hypertension — potentially alerting users who remain unaware of the condition. Built on data from more than 100,000 participants and clinically validated with over 2,000 people, the feature is designed to prompt early medical awareness or lifestyle changes. If alerted, users are encouraged to log their blood pressure for a week using a proper cuff device and consult a doctor, in line with established health guidelines.
The Key points
- The hypertension-alert feature is now available on Apple Watch in India.
- The system analyses heart sensor data, watching how blood vessels react over 30 days to detect possible chronic high blood pressure.
- It doesn’t give a real-time blood pressure reading — instead, it issues a “possible hypertension” notification if patterns suggest elevated risk.
- The underlying algorithm is trained on data from over 100,000 individuals and then clinically validated in a study of more than 2,000 participants.
- Upon receiving a notification, users are advised to measure their blood pressure daily for a week using a traditional cuff and share the results with a healthcare provider.
- The goal is early detection of undiagnosed hypertension — a major risk factor for heart attack, stroke, and kidney disease — which often goes unnoticed due to lack of symptoms.
- The alert function becomes available only after one-time setup in the Health app on iPhone.
- The feature is part of Apple’s preventive-health push, aiming to use everyday devices to highlight serious conditions before they worsen.
- While not a substitute for a medical diagnosis, the notification serves as an early warning — useful especially for those who rarely check their blood pressure.
- With widespread Apple Watch use, the company expects the feature could alert over a million people with previously undetected hypertension in its first year.
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