I find some amusement in the comments. Like the comment about saying it's for kids. No actual backup for that comment. Clearly the watch serves the needs of many for various reasons - at least mine, which is all that matters. That some feel it doesn't serve their needs doesn't make it "for kids". In fact, that kind of outlook is rather childish. As in, "If I don't like it, no other adult should either. Everybody must think like me".
Then there is the comment about the iPhone screen being better. Kinda depends, doesn't it? To give just one pretty obvious comparison, which screen will be easier to read to see the time? That isn't the only example either. Sure, if I want to read a webpage or something, the bigger screen is better, but that just reaffirms my point - it depends on what you are using it for. For that matter, has the critic actually seen the watch in person? Maybe so, but if not, then how can they be sure it isn't better for at least some things?
Next we have the P.T. Barnum reference. Which, surprise, means absolutely nothing. Without a rational argument to back it up, someone can make exactly the same remark about just about anything and anti-Apple Fanboys (or anti-whatever the subject being referred to) will just love the snark because they at least as bad as the Apple fanboys they ridicule, just in the opposite direction.
I guess some people don't care if they offer anything of substance. They just want to stir things up. I never understood that, personally. Even when I was a child, such things seemed too childish to me. We have this great ability to communicate with others and it tends to be mostly wasteful crap.