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Apple Activates Apple Watch Hypertension Alerts in Canada as Rollout Adds Singapore and Bahrain

The cuffless screening analyzes 30‑day heart sensor trends to prompt follow‑up with validated cuff measurements.

Hypertension Detection is not exclusive to the Apple Watch Ultra 3.
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Overview

  • Apple enabled Hypertension Notifications on October 8 for Apple Watch users in Canada, with the feature also going live in Singapore and Bahrain.
  • Supported models include Apple Watch Series 9, Series 10, Series 11, Ultra 2, and Ultra 3 running watchOS 26, with no support for Apple Watch SE.
  • The tool reviews optical heart‑sensor data over 30 days to flag signs consistent with chronic high blood pressure and does not provide numerical blood pressure readings.
  • If flagged, the Health app instructs users to log seven days of readings with a traditional cuff and to share results with a clinician.
  • Apple cites training data from studies totaling over 100,000 participants and clinical validation in more than 2,000 people, following Health Canada clearance for the feature.