I've been wearing a Moto 360 for a while now... and to my shock.. I actually enjoy it!
Pro's
Relatively inexpensive ($250 vs ~$5k for the watch on the right)
I get a lot of mail/txts/meeting invites. I don't have to keep pulling my phone out of my pocket all the time. A quick glance at the wrist decides if the 'alert' is worth responding to.
I can respond to texts & emails by voice dictation.
best watch calculator ever!
at-a-glance daily schedule. Most 'watch faces' have a way of showing meeting times and appointments.
Health! keeps track of my daily activity and sets goals to help improve my health.
I use my phone less!
Cons
$250!! while it is currently the least expensive watch i own.. its needs to be cheaper.
Battery Life.. 5:30am to 11pm i have ~10% left in the battery. The latest firmware update improves this (40% at eod) but you still have to charge it up every night.
NERD!! it screams NERD!!!
People look at you funny when you talk to your watch in public.
Draws a ton of attention. I can walk around with a $8,000 Panerai on my wrist and nobody will notice. Losts of people notice a glowing display on your wrist. Some times you get more unwanted attention then you'd like.
I'm not going to sell my watch collection... but a smart watch is a fun little toy that will be on my wrist more then i thought
if you own a smart phone or tablet I really cant see the point of having a watch too. unless you want to track how far you run or something and do not want to have a phone in your pocket, I would imagine this will be quite the expensive watch