Does exactly what I'd expect a smart watch to do. Its a companion to your phone you can read and reply to texts, email etc thru google now set reminders get turn by turn nav control your phone settings, play and control yiur music and video etc. I've only had it one day but I think for $99 its worth it anything more would just be for design IMO.
I'm at work and this is the first time I've pulled out my phone today. Also I think the battery is better than a lot of reviewers have said. Its been off the charger for 5 hrs now and the battery is on 89%