According to Google, today just under 31 percent of Android devices in use are using Marshmallow. Google says the Assistant will start rolling this week to Marshmallow and Nougat devices for English users in the US followed by Australia, Canada, and the UK, plus German speakers in Germany. “We’ll continue to add more languages over the coming year,” Gummi Hafsteinsson, product lead for the Google Assistant, writes in a blog post. It will replace Google Search. The Assistant will launch with a long press of the home button or the “OK Google” voice command.
Compared with Google Search and “OK Google,” it will add more functionality like smart home controls, remembering things, and an open API developers can plug into. However, some features that Google Search has had for a while, like recognizing songs, reading messages, and adding items to specific Google Keep lists will be missed.