Not to mention that you actually need to have an iPhone in addition to be able to use much of the functionality that can actually be considered useful. The irony of that is amusing.
I haven't worn a watch since 10th standard. I haven't felt the need to have a watch clinging to my wrist. Even now, with a smartphone in my pocket, I don't see a damned reason to have a watch on my hand. Some people, mostly women wear it as just another fashion accessory. Other than that, there is very little use for a wrist watch (smart or not) these days. They would make better sense when they are able to replace smart phones completely.
But well, it would still not stop this thing from selling in large numbers thanks to the idiot fanboys who will rush to Apple stores like bugs to a fire to create value for Apple investors. The only thing from Apple that actually anywhere close to being worth the money these days is their stocks.