Google's first-generation Pixel Watch boasts features that can rival the Apple Watch and Samsung Galaxy Watch, and among them is the ability to record an EGG right from the device. On the Pixel Watch, there are two main apps for fitness monitoring. The first is called Fitbit Today, and it shows a quick summary of the wearer's fitness and health data for the current day. There's a separate app called Fitbit Exercise which is used for tracking specific and intentional workouts on the smartwatch. But to take an ECG, the Fitbit ECG app is required, and it might not automatically show up on a user's Pixel Watch.

https://screenrant.com/pixel-watch-take-ecg-fitbit-app-how/