FDA Clears the Apple Watch for Hypertension Alerts

FDA Clears the Apple Watch for Hypertension Alerts

The Food and Drug Administration on Thursday cleared a new hypertension detection tool for the Apple Watch. The health feature was one of the highlights at Apple’s September iPhone event and will alert Apple Watch owners of potential signs of high blood pressure, a dangerous condition that can lead to heart attack or stroke and goes undiagnosed in millions of people.

Hypertension alerts were unveiled as part of the announcements for Apple Watch Series 11 and Apple Watch Ultra 3. Many (including myself) assumed it would be exclusive to the newest high-end models. But Apple Watch Series 9 and Apple Watch Ultra 2 and newer will support the new high blood pressure detector.

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Much like Apple’s irregular heart rhythm and sleep apnea notifications, hypertension alerts work in the background and don’t require any extra steps. After a 30-day analysis period, the watch will send an alert if it detects patterns consistent with high blood pressure. Apple is clear that this is not a diagnosis. The feature has been cleared by the FDA, but the goal is to provide an early warning that sparks a conversation with a physician.

If an alert does appear, the Apple Watch will recommend that you confirm the results with a traditional blood pressure cuff. All related data can be logged in the Health app on your iPhone and exported as a PDF for your doctor. That extra step cuts out the typical “wait and track” cycle often required after a doctor’s visit and instead lets you walk in with actionable data in hand.

The feature will be preloaded onto the new Series 11 and Ultra 3 and will be part of the WatchOS 26 update on Monday for the Apple Watch Series 9, Series 10 and Ultra 2. 

Decoding Sleep Score

The Apple Watch has tracked sleep for years, measuring duration, sleep stages and overall consistency. But it stopped short of giving you an actual score like competitors like Samsung, Oura and Garmin do. That changes with Sleep Score.

Sleep Score takes your nightly data and assigns a rating from 0-100 (or from “low” to “excellent”) based on three main criteria: duration, number of interruptions (such as kids or pets) and bedtime consistency — which Apple says is one of the biggest contributors to quality sleep.

The timing of this rollout is no accident. Apple has a track record of waiting until it has both the scientific backing and enough of its own data to justify launching a new health feature. Sleep Score uses new guidance from the American Academy of Sleep Medicine, the National Sleep Foundation and the World Sleep Society. The algorithm itself was built and validated using over 5 million nights of sleep data from the ongoing Apple Heart and Movement Study.

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