First of all, it needs an iPhone. Don't have one, don't want one.
So you don't have what it requires so you don't want one. Thanks for that. Guess you don't want a furnace because you live in Hawaii so therefore no one else on earth needs a furnace. Apple has sold over 700 million iPhones as of March 2015, even if only 5% buy an Apple Watch it will be a huge success.
Everyone cried that the iPad was ridiculous, it was just a large iPod Touch that cost triple the price. It sold like crazy. The Apple Watch will sell like hotcakes. Apple Watch will sell more in 1 day than all the Android Watches ever sold. Then Samsung will make an exact copy of the Apple Watch, add a SD card and removable battery, and the samsung fanbois will make fun of Apple for not having a micro SD card slot and a removable battery.