The alleged Google Watch is going through final optimizations and will allegedly be centered around Google Now functionality. Interestingly, a lot of the functionality of Glass could also arrive in the supposed Google Watch. You can just push a button to get the Watch ready to answer your dictated question. All of this should happen via a smartphone - the watch would tether to it, and we have no clarity whether or not it would also have stand-alone functionality.
The real deal maker or breaker however seems to be battery life. Google is rumored to be putting the extra effort for longer battery life. The Google Watch will allegedly use the Bluetooth 4.0 with Ultra Low Energy standard to communicate with your phone.
Now, Weintraub also confirms what we heard a few days ago about the Google Watch:
“Google will announce a Nexus watch, codenamed Gem, likely together with the KitKat announcement. The date I have, which, once again, is about a month old, is also October 31st.”
Finally, it seems that the watch is indeed coming sooner than later.