This is specific to the Pebble Core, which is not a smartwatch and isn't worn on the wrist.

Better leave that Internet-connected microphone that's in your pocket at home in the freezer...

Pretty sure the core isn't always on.

On top of that, the Core is probably less capable than your cell phone - which could already be listening to you 24/7. You'll trust Facebook, Microsoft, Google, and Apple in your pocket everyday but not Amazon? Get real, if someone wanted to spy on you, they wouldn't wait for you to buy a core.

The Pebble Core doesn't have a built-in microphone or built-in speaker. You need to either plug in a headset with a microphone or use a Bluetooth Headset with microphone. If you used a wired headset with no mic, it can't listen to you.

You don't have to if you don't want to.