Quick and subtle notifications are the main attraction for many people.
Of course, if you're one of those people who MUST answer every call, text or email... and have a job/life where you can do so... then you'd be better off simply dragging out your phone each time
-- Other uses
As someone who keeps his phone in a pocket, I've also found being able to send an incoming call to voice mail is handy, and of course, seeing the current date and time!
Down the fun list are being able to set little timers, using the watch to ask Siri or Google for help, and seeing the weather forecast at a glance.
Okay, and playing games, reading news, email, you name it. My old WiMM smartwatch could even remotely display almost any widget I had on my Android phone. That was very cool.
-- Going back to basics
Still... all this talk has made me realize that my number one need is for a watch that does not fail me. Number two is notifications. Number three is not charging all the time. Everything else is gravy.
That's why I'm doing an experiment. Now, I already wear a watch, 24/7. If you do not, then skip ahead to another post, because you probably don't need this.
I bought a couple of Martian Notifiers off eBay (one black, one white). Their list price is $130, but you can get new/ nearly new ones on eBay for $60-$80, easy.
The Notifier doesn't have the mike/speaker like the bigger Martians, but it does
- look like a regular watch, and use 22mm straps,
- has a regular two year battery run watch inside of it, and
- just a little notifier window which runs for about five days between charges.
I'm going to see how it like it. Previous smartwatches drove me crazy after a while because it felt like I was constantly charging them. I sure couldn't rely on their clocks past a couple of days.
(Okay, technically I wouldn't call this a smartwatch. More like a notifier watch. But hey, that's 95% of what I used smartwatches for.)