I've done something I thought I'd never do - bought an Apple watch to go with my new iPhone.
I've read all the whys and why-nots of having one, and was a bit dubious, so I went for the cheapest 42mm Series 1 (the one with twin processors, but no built in GPS or 50m WR).
And you know what? I absolutely love it.
Take no notice of the detractors saying it is not a proper watch. The complications you can have are amazing. It is easy to use. It connects to the iPhone system brilliantly. The 1 day battery life is not a problem - just pop it onto the magnetic night stand and it charges (takes 2 hours) and doubles as a night watch, with a special big display and sensitive motion detection, so just the lightest touch on the bedside table turns it on.
And above all it is useful.
For example, I have customised a face for when I go out walking which shows elapsed time, steps taken and temperature (and normal time, day and date, of course).
You can answer telephone calls just using the watch. Ask it to navigate home and it gives directions. Ask it if it will rain. etc, etc , etc
Try all that with a "proper" watch.
Of course, it will never take the place of all the real watches I own. Definitely not.
Except I can't take it off my wrist.