The U.S. installed base of smart-speaker devices nearly doubled to 66 million units in December from a year earlier, according to Consumer Intelligence Research Partners. The installed base was 53 million units in September 2018 and 36 million in December 2017.
Amazon Echo has 70 percent of the installed base, followed by Google Home at 24 percent and Apple HomePod at 6 percent.
The percentage of smart-speaker owners who have more than device grew to 35 percent in December from 18 percent a year earlier.
CIRP surveyed 500 U.S. owners of Amazon Echo, Google Home and Apple HomePod devices from Jan. 1 -11, 2019.