I have a Google Pixel phone and a Fitbit which has been acquired by Google. A important consideration when looking for a smart watch at least in the world of Android devices is to verify that your brand and specific model of phone will be compatible with app that the company is currently using. If you purchase a watch that isn't compatible you may end up having a $300 step counter on your wrist. There are some android phones that will work with a Fitbit app but not with the ECG feature which is what you're looking for. You're phone has to be able to be updatable to a specific software version also. Do the research 👍🏼👍🏼