Upgrading to Apple Watch Series 12 Could Cost You Hypertension Notifications - MacRumors

Some Apple Watch users who upgrade to the Series 12 or the Ultra 4 might temporarily lose access to hypertension notifications.

On the watchOS feature availability page , Apple says notifications might not be available on the Series 12 or Ultra 4 at launch because regulatory clearances are in process.

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.