Android Wear on iOS: A hobbled, Google-centric smartwatch experience

You can use Android Wear smartwatches with iPhones now. You shouldn't, but you can.

That's not a value judgment of Android Wear relative to the Apple Watch or WatchOS—both platforms do a lot of the same things, at least when paired to a phone running the same OS. It's more about what Google (or any third-party wearable vendor) can actually do on Apple's platform, which despite recent progress still restricts third-party hardware and software from doing many of the things that first-party hardware and software can do.