That still represents a $1.2 billion revenue opportunity, and a 20 percent increase over last year, according to the CTA. (It expects revenue for consumer electronics overall to hit $287 billion this year.)
"Most people are scared or don't understand smart homes because it's been presented to them as: 'Here's a hub and a bunch of sensors, why don't you try to turn on your lights,'" said NextMarket Insights analyst Michael Wolf.
"Once consumers realize there are these technologies that are just so much better then the old technology, they'll probably adopt them," said Wolf.
One difference, compared to CES in years past, is that companies are putting less effort into becoming the de facto platform for your entire house, and more into delivering specific products.
"Companies have recognized that that battle has been won, and it's coming down to a few primary platforms and ecosystems, like [Alphabet's] Nest and [Samsung's] SmartThings," said Wolf.
This next generation of connected appliances works with those established systems, plus a few others, and is tailored to specific consumer needs. For example, Whirpool is showing off a refrigerator, dishwasher and range that integrate with Alphabet's "Works with Nest" and "Amazon Dash Replenishment." Both let users control these appliances and replenish supplies remotely via an app.