The article does talk about this in one respect: the integration with the iPhone would seem to be the primary (and substantial) advantage that Apple Watch has.

The article does talk about this in one respect: the integration with the iPhone would seem to be the primary (and substantial) advantage that Apple Watch has. You could argue that this limited Apple Watch to a minority of smartphone owners, but it's still an addressable market of 700M. Plus, the Apple Watch will likely not always be tethered to an iPhone.