In 33 countries and regions, the Apple Watch Series 12 and Ultra 4 may arrive without hypertension notifications, one of Apple’s headline health features. The watches went on sale on September 18, 2026. A footnote on Apple’s watchOS feature availability page reads: “Hypertension Notifications may not be available on Apple Watch Series 12 or Ultra 4 in your region, as additional regulatory clearances for these devices are in process.” Canada, Australia, Japan, India, Brazil and South Korea are among the places marked. Older watches from the Series 9 onward keep the feature in those same countries. That means Apple Watch Series 12 hypertension alerts can be missing on the newer watch while the one it replaces still has them. Apple hasn’t given a date for the clearances.
Where the footnote applies
Apple lists Hypertension Notifications country by country and marks 33 entries with the footnote. Twenty-nine of them are Australia, Bahrain, Brazil, Canada, Colombia, Costa Rica, Ecuador, Honduras, India, Indonesia, Israel, Japan, Kuwait, Malaysia, Moldova, the Palestinian Territories, Paraguay, Peru, Saudi Arabia, Serbia, Singapore, South Africa, South Korea, Taiwan, Thailand, Türkiye, Ukraine, the United Arab Emirates and Vietnam. The other four are Australian external territories: Christmas Island, the Cocos (Keeling) Islands, Heard and McDonald Islands and Norfolk Island.
The United States, the United Kingdom, the EU member states, Switzerland, Norway, Hong Kong, New Zealand and Chile are listed without the footnote. A Series 12 bought there should have the feature from the start. Mexico and mainland China aren’t on the list at all, for any model.
Apple’s support article repeats the warning in slightly different words, saying clearances “for the feature for these models are in process”. The article is dated September 14, 2026, four days before the watches reached stores.
Several of these countries only got the feature in January
Apple introduced hypertension notifications in September 2025 for the Series 9 and later and the Ultra 2 and later. On January 27, 2026, it added seven countries: Australia, Malaysia, Colombia, Indonesia, South Korea, Brazil and Turkey. All seven now carry the footnote for the new models.
An owner in Sydney or Seoul got the feature on their Series 10 or Ultra 2 in January, eight months before the new models went on sale. The watch that replaces it may not have the feature yet. The clearance comes from each country’s regulator, which is why the list follows national borders.
Why new watches need new clearances
Apple hasn’t explained it beyond the phrase “additional regulatory clearances for these devices”. Health regulators usually clear a software feature together with the hardware it was tested on. The Series 12 and Ultra 4 use a new heart rate system. Apple says it now samples heart rate every five seconds, far more often than earlier models. Our reading of the footnote is that a new sensor and new data could need a fresh filing in each market.
Prices didn’t change with the new generation. In the United States, the Series 12 starts at $399 and the Ultra 4 at $799, the same as the models they replace.
How the feature works and who can use it
Hypertension notifications don’t measure blood pressure. The watch analyzes data from its optical heart sensor over 30-day evaluation periods and sends an alert if it finds a pattern consistent with chronic high blood pressure. The alert then prompts you to set up a Blood Pressure Log and take readings with a third-party cuff for seven days. That gives you real numbers to show a doctor.
Apple’s support page says the feature “is not intended to diagnose, treat, or aid in the management of hypertension” and that “not all people with hypertension receive a notification.” To switch it on, you must be 22 or older, not pregnant and never diagnosed with hypertension. You also need an iPhone 11 or later with Wrist Detection turned on, and the feature isn’t available on any Apple Watch SE.
If you already have a diagnosis, the feature was never meant for you, and the footnote changes nothing. A home cuff is still the tool that gives you a number. Cuffless estimates from rings, such as the calibrated Circular Ring blood pressure trend, are a different category again.
If you live in one of the 33 regions
Start with Apple’s feature availability page for your country, since the footnote is the only official word on status. If hypertension notifications are the main reason you want a Series 12 or Ultra 4, waiting costs you nothing. Your current watch keeps the feature if it’s a Series 9 or later or an Ultra 2 or later.
If you buy now for other reasons, the Health Checklist on the new watch may not show the feature for some time. Buying directly from Apple makes it easier to change your mind, because Apple publishes a return window for its own stores (14 days in the United States). Check the period for your country before you order.
A watch bought in the United States or Europe and used in Canada or Australia is a gray area. Apple’s support page asks you to make sure the feature “is available in your country or region” but doesn’t say how the watch decides where you are. Relying on an imported watch to get around the footnote is a gamble.
What is still unknown
Apple hasn’t said when the clearances will arrive, whether they’ll come country by country or together, or whether any other health feature on the new models is affected. It also hasn’t said what happens to your 30-day history if you move from an older watch with the feature to a new one without it. Keep an eye on the feature availability page. When a country’s footnote comes off, the Series 12 becomes a like-for-like replacement there.
