Apple introduced a new feature that alerts users to signs of chronic high blood pressure, expanding the Watch’s role in heart monitoring.

According to Apple's presentation, the smartwatch will look for chronic hypertension over 30-day periods. Apple's presentation noted that the Watch Series 11 won't be able to identify all hypertension, but the company said that it expects to notify over 1 million people with undiagnosed hypertension during the feature's first year of availability.