My watch mostly replaced my phone. It’s a game changer. I thought they were fairly superfluous and unnecessary and expected they’d actually phase it out within 5 years.
I don't find anything compelling about it either. I don't even like my iPhone that much. Half the time I pull it out of my pocket to find that the camera is on (no way to disable that) or I've made some other gesture that has opened up a dialog with no obvious means to dismiss it.