Alexa and Google Assistant have hit the mainstream. This past Xmas, sales of both unit soared during the holiday season. They are not the only ones in the game.
Some people might have issues using smart assistant speakers that can hear what you are saying all the time. Transmitting voice comms to a google serving might not have some worried about security issues. There are other options. One of which is the open source option called Mycroft.
Mycroft is an open source voice assistant that can be extended and expanded to the limits of your imagination. Want Mycroft to do something new? Teach Mycroft a skill, share it, and improve the experience for tens of thousands of people all over the world.
This might not be a bad option for wearables that need flexibility.
Here is the GitHub page: See what
Check out the website for more info: