Pixel Watch does not support Fitbit Irregular Heart Rhythm Notifications [U] - 9to5Google

The Pixel Watch does not have the full complement of health features found on even an entry-level Fitbit tracker.

Update 1/23: Google explained to us today that Irregular Heart Rhythm Notifications are not available on the Pixel Watch.

If you’re seeing that menu in the Fitbit app today, it’s just a history of past notifications — even if you’ve received no alerts — from previously paired devices that were compatible.

Original 1/21: While the Pixel Watch has an ECG app that records electrical signals for 30 seconds and looks for signs of AFib (Atrial Fibrillation) on-demand, it does not support Irregular Heart Rhythm Notifications that work while you’re still or sleeping.

However, some Pixel Watch owners are seeing an Irregular Rhythm Notifications page in the Discover tab of the Fitbit app.

Compared to most other Fitbit devices, the Pixel Watch also lacks SpO2 tracking, high & low heart rate notifications, and skin temperature variation.