Apple has made it clear how the new hypertension feature of the Apple Watch works — and, importantly, what it does not do.

While it’s an Apple Watch feature, hypertension alerts have to first be enabled on an iPhone

While it’s an Apple Watch feature, hypertension alerts have to first be enabled on an iPhone
If Apple is right, about 1 million people in the next 12 months will get a scary notification on their Apple Watch. It’s a notification of “Possible Hypertension,” and Apple has been at pains to explain what this does and does not mean.
Now it’s published a support document specifically detailing what prompts this notification, as well as what steps an Apple Watch user should take if they see it.