I recently (couple of days ago) purchased a Galaxy Watch 4 (44mm). The heart rate monitor is WAY off. I'm wearing my old Fitbit Ionic on one wrist and my GW4 on the other, and hte GW4 is showing roughly TWICE the heart rate as my Fitbit. I know my Fitbit is accurate as I recently verified it against a real medical electrocardiogram. If I take the watch off and put it back on, it shows the correct heart rate for a period of time, and then goes haywire again. An agent on Samsung's chat-based support sent me to an article listing troubleshooting steps, none of which resolved the issue. Is there a definitive fix for this, or should I return the watch to T-Mobile while I still am in the return window and order a Fitbit instead? Thanks!
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