Apple has steadily expanded the Apple Watch’s health monitoring features over the years, moving beyond fitness tracking into areas that can offer early insight into potential medical concerns. One of the most recent additions is hypertension alerts, which are designed to notify users when their blood pressure trends are elevated over time. While Apple Watches cannot directly measure blood pressure, this feature can still play a useful role in highlighting patterns that may be worth discussing with your doctor. Here, we’ll explain what hypertension alerts do, how they work and how to enable and manage them on the Apple Watch.
What hypertension alerts do
Hypertension alerts are designed to identify long-term trends that may indicate elevated blood pressure. Instead of relying on a traditional cuff measurement, the Apple Watch analyzes a combination of health data collected over a 30-day period, including heart rate, movement patterns and other contextual information stored in the Health app. Using this data, the system looks for sustained changes that align with patterns commonly associated with hypertension.
If your Apple Watch detects a trend suggesting elevated blood pressure over an extended period, it’ll send you a notification. These alerts are not intended to diagnose hypertension or replace medical testing. Instead, they serve as an early signal that something may have changed and that you may want to seek further monitoring or professional advice.
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Apple emphasizes that hypertension alerts are designed for users who have not already been diagnosed with high blood pressure. Instead, they are meant to raise awareness rather than confirm a condition.
Who can use hypertension alerts
Hypertension alerts require a compatible Apple Watch model (Apple Watch Series 9 or later, or Apple Watch Ultra 2 or later) paired with a supported iPhone (iPhone 11 or later). The feature also depends on recent versions of watchOS and iOS, as it relies on updated health algorithms and background data analysis. To use hypertension alerts you must be 22 years of age or older, not be pregnant and not have been diagnosed with hypertension. You also need to ensure that your Apple Watch’s Wrist Detection feature is turned on.
To receive meaningful alerts, your Apple Watch needs sufficient data. This means wearing the watch regularly, including during sleep if sleep tracking is enabled, and keeping health details such as age, sex, height and weight up-to-date in the Health app. The system uses long-term trends, so alerts will not appear immediately after enabling the feature.
How to turn on hypertension alerts
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