How exactly is Alexa different than Siri on iPhones? Why is one a surveillance speaker but the other isnt? I'm near my phone far more often than I am in my living room.
The "Hey Siri" wake is done completely locally, and is opt-in on top of Siri.
https://techcrunch.com/2015/09/11/apple-addresses-privacy-qu...
Apple also consistently makes the trade-off of privacy above user-experience; in order to offer similar features to Google photos, they train neural networks on-device.
As well as how seriously they take the biometric data from Touch ID and Face ID, I'm much more comfortable around a HomePod than Alexa.