Well, it probably depends what you expect from battery. For me one day is enough as I charge my smartwatch along with my smartphone, when I go to sleep. But very often I don't charge it to 100% (which is better for battery), usually to 80+/- % and it's unlikely that I get below 40% using it all day (I start my day before 4am and go to sleep about 9pm). I did a test few days ago. I charged it to 100% and plugged it back 43 hours later, when it had 26%. The Wear app told me that SOT was about 3 hours during that time (checking time, answering notifications and phonecalls, controling media, paying with it...etc. Still spend some time changing settings, watch faces, adding and checking new apps...). Spotify about the same (3hrs). Plus some health services (I walk a lot). I got my GW4Classic 46 LTE on the 27th of August and few days later there was an update which improved battery life. In my opinion. But I don't use my watch to track activities in more advanced way, and I don't check my health parameters all the time. Besides I always have my smartphone with me so it does the job and smartwatch just helps to display the results. On the other hand - lte really sucks the juice. I treat it as "just in case" feature (still don't understand why my smartphone needs to be on and connected to internet when left home and I want to make phonecalls with my watch being outside).
