https://www.theverge.com/circuitbreaker/2018/5/25/17396952/google-outsold-amazon-in-smart-speakers-during-q1-2018

Over 3.1 million Google Home speakers were sold during the first quarter of 2018, beating Amazon’s 2.5 million Echo devices for first time since the two companies began competing in the smart speaker market.

It’s worth remembering Amazon has outsold Google in the smart speaker market every quarter, since at least the beginning 2017, according to Canalys. Amazon remains the overall market leader, though Google is quickly catching up.