I have had each version of the Sony Smart watch, from the first Live View "watch" back on 2009 to my now 2nd gen Sony Smart Watch.
what i learned is that, YOU NEVER BUY the first of anything type of new tech, the 2nd one is always better because end users finally get to test them for real and let the devlopers know what needs to be fixed/added/imporved.
Everyone I run into / or sees my watch from the other side of the room comes over to ask. People in elevators are always interested on why i am looking at my watch.. i say "i am reading my Face Book time line.." then i have to go into how it will show incoming tweets, incoming calls and can answer them or reject them with out taking my phone out of my pocket.
If you are looking for a Wrist Phone, these are not them.. this is NOT Dick Tracy or Bat Man style that the commercials show, as the SamSung and Sony Smart Watches hook up to your Smart Phone.. so you still have to carry around a brink.
Now if you want a Watch Phone.. check www.Tinkgeek.com or ebay.com there is a TON of them out there for well under the price that Samsung is trying to sell their BS watch for.
so all in all.. Go with SONY they are already on the 4th version and it is cheaper and does more as there has been apps written for them for YEARS now.