Apple’s big September showcase delivered a wave of hardware updates, and while the iPhone 17 lineup grabbed the spotlight, the latest Apple Watch health features are what have everyone talking. The company introduced two major wellness tools—Hypertension Notifications and Sleep Score—that bring deeper health insights to the wrist. Even better, you won’t necessarily need the newest watch to try them, as select older models are also set to get these upgrades.
Here’s what’s new, how it works, and which Apple Watch models are compatible.
Hypertension Notifications (also called Hypertension Alerts) are designed to flag potential high blood pressure concerns or unusual spikes. Using the optical heart sensor, the feature analyzes blood vessel responses over a period of about a month to spot irregular patterns and then notifies you if something looks off. Apple plans a broad rollout in more than 150 regions, though the feature is pending FDA approval.
Hypertension Notifications compatibility:
– Apple Watch Series 9 and later
– Apple Watch Ultra 2 and later
– Requires watchOS 26
Sleep Score turns your nightly data into a simple, at-a-glance rating of sleep quality. It combines wrist temperature, blood oxygen saturation, heart rate, and respiratory rate to estimate how well you slept and help you track changes over time.
Sleep Score compatibility:
– Apple Watch Series 6 and later
– Apple Watch SE (2nd generation) and later
– All Apple Watch Ultra models running watchOS 26 when paired with an iPhone 11 or newer
– Arriving with watchOS 26 on September 15, 2025
It’s worth noting that availability may vary based on each watch’s sensors and chipsets, so some models could see only partial functionality. Still, these features underscore Apple’s continued push to turn the Apple Watch into a powerful wellness companion.
Alongside the upcoming Apple Watch Series 11, Watch SE 3, and Ultra 3, these software-driven upgrades give both new and existing users a compelling reason to engage more deeply with their health data. If you’re planning to upgrade—or prefer to keep your current watch—now you know exactly what to expect from Hypertension Notifications and Sleep Score with watchOS 26.
