I just bought my vivoactive 3 three days ago and am trying to decide whether to return it or not. For running it works like a dream. As a smart watch I'm not so impressed yet. Specifically I am having two frustrating problems. First I have worn it to bed twice and both nights I can see heart rate data but the sleep tracker says there is no sleep data and advises me to wear the device at night. I can't imagine what I am doing wrong here. It does not seem like this should be a complicated thing to do, but it is not working.
Second I keep deleting all my notifications and my watch face will say there are no messages but minutes later I will have dozens of notifications while my message counter still says zero. Worse the notifications are days or weeks old and often are ones I have already seen. Again this seems like a function that should just work and I can't see any obvious settings I can change to fix the problem.