I think the point is that on-phone DNN wake-word detection has been around for many years. Google shipped it like ... 3? years ago. A lot of Apple's technical ML posts feel a bit lackluster for that reason. Targeted at people who aren't active in the field.

Apple’s Hey Siri wake isn’t available just starting this year either. I think it started become available since the iPhone 6s.

For context, google published a paper on their on-device wakeword system 1.5 years before the 6s came out.

https://static.googleusercontent.com/media/research.google.c...

Exactly!Thank you.