More than 8 in 10 American homes now contain smart tech — including refrigerators, doorbells, and robot vacuums, according to a OnePoll survey of 5,000 American homeowners conducted from Oct. 1 to 6.

More than eight in 10 American homes now contain smart tech – including refrigerators, doorbells, and robot vacuums. A poll of 5,000 homeowners found they’ve spent, on average, more than $2,000 on ...