Google just announced that it has sold "tens of millions" of its home devices over the last year, including its smart speakers and Chromecast TV streaming devices — and more than one Home speaker every second since the Home Mini started shipping in October.

Some quick math: That means that Google has sold at least 6.7 million devices since Oct. 19.

That's a refreshingly concrete number, if not uniquely huge. said that it sold "tens of millions" of Alexa-enabled devices and that its Echo Dot sold "millions" of units over the holidays. Amazon's Echo products are widely seen as dominating the smart speaker market: CIRP estimated last fall that Amazon's Echo products had a 76 percent market share in the U.S. compared with 24 percent for Google's Home devices.

Both companies offered steep discounts on their products over the holidays, likely

Google also said that Assistant, the artificial intelligence that users can engage with via voice or text, is now available on more than 400 million devices, including phones, headphones, TVs and watches. It can also control more than 1,500 smart home devices such as smart lightbulbs or plugs.

Correction: An earlier version of this story misstated the Google product that sold in the "tens of millions" last year.