Dictation with Android Wear Watch
The Android Wear watch has a feature called: OK Google... your_command. To use it download Google Now on your android phone. You can talk to your watch anytime you want and use commands like: 


set an alarm
set a timer for 10 minutes
call Steve
text Steve, how are you?
open &lt;your_app&gt; //example: open Google Maps
take a note, buy cat food at the supermarket.
remind me over 10 minutes, buy cat food at the supermarket.
hello //use this command to see a list of available commands.


Hope my answer helps you!