The Google user interface (app) that this watch depends on is not so great. And when compared to a FitBit interface (app), it completely fails. As others have said, the battery life is terrible, especially when compared to a FitBit. I like the look and feel of the different faces, but due to the lousy user interface, this smart watch misses the mark. But Citizen could easily remedy this by demanding a better app from Google. But the battery issue is here to stay.
I chose the middle. Not so user friendly - granted I'm tech challenged. I'm a Citizen man so it was , for me , the logical - "Smart" choice.
Very low battery power, less than a full day......
Overall a great smart watch. Stylish design and very comfortable strap. I am pleased with my purchase