Read the history part of this link. Android Wear, in a sense, has been around quite a whileActually, Moto was ahead of the curve first with the MotoACTV in late 2011. It was more fitness-centric, but it included many of the smartwatch features that make up Android Wear today. I've owned one since shortly after launch and have absolutely loved it. Sony's first Smartwatch didn't drop until several months later in the spring of 2012.
That said, they both played big roles in paving the way for where we are today with wearable tech.
Smartwatch - Wikipedia the free encyclopedia