Don't try to reinvent the wheel with an inferior device would be my reply. The analogue watch is a beautifully crafted piece of design that performs its function to perfection.
The benefits for me.
Control music
Make and reply to texts
Make and take calls
Get important news headlines
Pay for things
Use it to track workouts and runs both in and outdoors
All of the above I do often enough to list them as useful, there are many more benefits though.
The term smart watch should really be changed to smart device. That it is worn on your wrist in place of a conventional timepiece makes it convenient to have the word 'watch' in there somewhere. Ultimately though, telling the time is a single, largely unimportant feature of the overall purpose of the device but allows the user to retain the most accepted and principle reason for having something on your wrist.
I agree with your comments above, however, it is not about trying to reinvent the wheel, the analogue watch has a single purpose. Having said that, time is everywhere these days. I would argue as a result there is no need for the majority of people to have one. They serve largely aesthetic purposes now.
That a watch (let's call it that for now) can both encourage and provide the results of physical activity as well as alert to potential health issues is a positive step forward, especially in the western world where taking more notice of your health is to be encouraged.
Just last week I was reading in the news a young girl who fell off a ladder at home whilst alone and could not move, but her SOS feature alerted emergency services who had said that had she fought through the pain and got to her phone rather than lying still and waiting it could have left her in a wheelchair.
The possibilities are endless and the features are growing. I even gave one to my mother in law in case she gets into any trouble at home such as a fall we can be alerted.
I am all for them, and I am looking proudly up at a shelf with 12 automatic watches that I have collected over the years.