Apple Watch gains AI-powered high blood pressure notification feature
Apple unveiled a new AI-driven health feature for the Apple Watch Series 11, launching Friday, that can notify users if they may have high blood pressure. The notification tool, approved by the U.S. Food and Drug Administration, will also roll out to Apple Watch Series 9 and later models in over 150 countries.
Unlike a traditional blood pressure cuff (sphygmomanometer), the Watch does not measure blood pressure directly. Instead, Apple used machine learning to analyze sensor data from its large-scale Heart and Movement Study, launched in 2019 with 100,000 participants. Researchers identified patterns in the watch’s heart-related signals and validated the resulting algorithm in a dedicated study of 2,000 people.
The feature is designed to prompt users to check their blood pressure with a cuff and consult a doctor if alerts appear. Apple Vice President of Health Sumbul Ahmad Desai emphasized that the company has long pursued ways to detect hypertension, a condition affecting over 1 billion people worldwide, half of whom remain undiagnosed.
Cardiology expert Ami Bhatt called the rollout significant, noting it could help reduce risks of heart attacks, strokes, and kidney disease by prompting early detection. Still, she cautioned that the tool is not a replacement for professional diagnosis and carries risks of both false positives and false reassurance for those who don’t receive alerts.
The addition highlights Apple’s broader push into preventive healthcare, positioning the Watch as not only a fitness tracker but also an early-warning tool for chronic conditions.