New Delhi, Oct. 24 -- Apple's watchOS 26 update introduces a significant new health tracking feature: hypertension alerts. While the Apple Watch cannot measure blood pressure directly, it leverages advanced heart sensors to detect patterns over time that may indicate high blood pressure. This feature is available for Apple Watch Series 9, 10, and 11, as well as Ultra 2 and Ultra 3 models, making it accessible to users with newer devices.

The Apple Watch uses its optical heart sensor to track how blood vessels respond to each heartbeat. A sophisticated algorithm analyses these patterns over 30 days, identifying trends linked to hypertension. By evaluating long-term patterns rather than isolated readings, the watch reduces false alerts and...