I have the series 3 GPS only model and I think battery is excellent so far, I put on my watch this morning around 8am and just took it off at 9:45pm and had 84% battery left on it. I used it for some walking, replying to texts and just general playing around with it. I am not a heavy user but if I can get this kind of battery out of it I'm happy with it.
Picked the GPS (no LTE) one up on Friday, did a full charge around 10pm. I left it on my wrist overnight and checked in the morning to see if it tracked my average heart rate, the battery was down to 98%. I did my 15min exercise and did my usual Saturday errands. I did my second exercise, at the end of that day I was down at 50%. Today (10pm), it's now at 10%.
I say this can last me for two days without charge.
I think the series 3 is designed with LTE in mind so the GPS version benefits from not having LTE antenna and the battery life can be much better than advertised.
I didn’t choose the LTE version because it is not available in my country and I always bring my phone with me.
Same here. I started with 100% at 9:30 am and at 8:00 pm I had over 70%. It was mostly on wifi at work. I have the Wake screen on auto mode and 15 seconds.