I like both Bixby and Google assistant on the N8. While I thought Google assistant already came installed on the N8 I downloaded it from the play store. I was able to unlock the phone by saying ok google. YAY, lets see how long this lasts. Bixby can be useful but I find google assistant recognized my voice better over bixby and siri and it can be as 99% accurate to what I am asking to do unlike bixby and siri.
https://play.google.com/store/apps/details?id=com.google.android.apps.googleassistant
https://play.google.com/store/apps/details?id=com.google.android.apps.googleassistant
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