Just swipe the display of SmartWatch,
then the silent mode of your SmartPhone will be changed as the following sequence.
NORMAL > VIBRATE > SILENT > NORMAL
Notice: If you want to mute alarms or another apps sound, you should change the settings of each apps to prioritize silent mode over the apps sound.
This app is provided "as is", without warranty of any kind.
Your use of the app is at your own risk.
LiveWare™ extension for SmartWatch