I preordered but not on preorder day, a few days after, but before it shipped. I was on the fence about getting the first generation and had a lot less disposable income back then. Anyway it was so backed up that it didn’t arrive until early June 2015. The battery life has steadily declined on mine. Lately it has been really inconsistent. Some days it dies at 4pm, other days 8 or 9pm. I don’t even run the exercise app any more. I have nearly every setting dialed back to the minimum and pretty much only receive a few notifications aside from Messages. It’s driving me crazy and my Series 4 44mm SS just won’t ship! Side note: since I haven’t been using it much for exercising and activity I’ve been slowly gaining weight again. It really did help me be more active and healthy. Now that my wife has an Apple Watch for the first time (40mm AL), I’m looking forward to competing with her.