Update. ... I've recently changed from the motion sensor of waking up the clock to the button only feature and didn't change anything else, and now I'm getting at least 13 and half hours and have 91% battery left. I will keep monitoring it and report back soon after its been a full day or longer.
Update #2... 37 hours later, settings the same and have 75% battery left on watch.
Update #3... Currently is been 64 hours now from one charge and my battery is at 49%. I haven't changed any settings and I've answered more calls today than I have in the last few days on it. So far. .. I'm very impressed with the battery life on this watch.
Update #4... As of this writing, it's been 108 and half hours on one charge and I currently have 27% battery still left.
Update #5... I ended up getting 120 hours out of my watch, till I got the message at 15% left, stating that it needed to be plugged in for charging. I didn't run the battery any lower because I don't know if it drains quicker or not beyond that point. Also I wouldn't have been able to charge it if it drain quick because I want around a charging source at the moment.
Conclusion. ... Anyone should should easily get the specified 3 days on a full charge, no questions asked. I will stick with my 4 to 5 days depending on how I use mine. For the most part I do use the heart rate monitor, I make and receive calls, I send and receive texts. I receive emails and the appy alerts along with news Republic and requallable notices. And set the display to 2 during the day as it's plenty bright for outdoors and 1 for night and button on only to view the clock with the black background.
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