New study reveals gaps in Apple Watch’s ability to detect undiagnosed high blood pressure

In September 2025, the U.S. Food and Drug Administration cleared the Apple Watch Hypertension Notifications Feature, a cuffless tool that uses the watch’s optical sensors to detect blood flow patterns and alert users when their data suggest possible hypertension. While the feature is not intended to diagnose high blood pressure, it represents a step toward wearable-based population screening.

This article was originally published on MedicalXpress.com

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