I really like the watch, came from a garmin & apple watch before that. The band that comes with the watch are trash, it's quite bulky and doesn't form to your wrist very well. Google wear os is good, will be great when they've really got it fine tuned. Battery is about the same as the Apple watch I had. I think it would barely make 2 days, especially if you have auto detect workouts/walks turned on, that drains it. I don't get to use the sleep tracking features because I have to charge it every night, it doesn't charge quick enough to just top it up for daily use for me. Reverse charge from my note 10 doesn't detect too well either so can't charge it off my phone, and not all wireless charging pads will charge it. Happy with my purchase, I'm sure with a few updates the wear os will be great.