I was in the same boat. I didn't even think to buy one because I didn't think there was a point besides needing something to tell the time. My wife got me a Pebble a few years ago, and I was surprised how useful it was. I could read email and texts from my watch, instead of fumbling with my phone (Android here, too) all the time. I got calendar notifications that I might have missed otherwise. I could filter calls from my watch. It was refreshing to do a lot of tiny things from my watch that would have required more time to do from my phone, just because I would have needed to get it out of my pocket, log in, and check something that takes 3 seconds to read.
I would definitely recommend the Pebble over some overly expensive, battery draining, fashion accessory like Apple's watch. Also, yeah, I doubt Apple would play nice with Android.
Oh, don't get me wrong, I've been passively interested in wearable tech like this for a few years, now. Even tried figuring out how to do it myself to no avail. I just can't justify the price for most of these things at all.