Requires a Google Account, and internet access. See for technical and device specifications details. [3]The ECG app is only available in select countries. Not intended for use by people under 22 years old.
I'm having fun with my new watch. It's helpful in terms of my text and calendar notifications. I'm still figuring out the interface for navigating the various settings. It would be nice if it had come with some written instructions. I'm using what I can find on Google.