Android Wear
Here we go! Google has entered the smart watch market with their Android Wear OS.
More people will learn about what Google Now is all about. Great for quick information but not as accessible as Google Glass (I still want it but not for $1500).
What does Android Wear need? Better looking watches. The Moto 360 looks good:

But appalling when it's not the clock display:

The major downfall of smart watches is still battery life. Nobody wants to charge it daily.
Another thing is women watches; they must be smaller than mens, making it difficult to design with all the features. One size does definitely fit all unlike phones.
What do I want in my Android Wear watch? Heart rate sensor, accelerometer, and vibration. As I previously state, I really wished that my basis had vibration to wake me up at an optimal time in my sleep cycle or alert me when I get notifications from my phone. Do I want a camera? Sure if the interface is solid and quality is sufficient.