Picture this, May 9 -- you walk through your front door, and the lights turn on without you flicking a switch. The room temperature shifts to just how you like it. Your favorite playlist starts softly in the background. And you didn't say a word or tap an app. Your smartwatch did all the talking quietly, in the background, making life easier. This is not a sci-fi vision anymore. This is the direction our homes are headed, and wearable devices are gradually becoming the magic wand in this transformation.

As the Internet of Things (IoT) continues to weave itself into everyday life, the role of wearables is growing rapidly. Until recently, these devices were mostly used for counting steps, tracking sleep, or checking your pulse. But they're...