Rachio Smart Sprinkler Controller

With Rachio's smart sprinkler controller, which the company showed off at CES 2017, homeowners can automate their backyard watering systems through their smartphones.

Rachio's smart watering system lets users control the sprinklers on their lawn. Users can control their watering systems right from their iOS or Android devices -- but the company takes it a step further. Rachio can schedule itself based on local weather patterns accessed through Wi-Fi, and automatically optimizes a watering schedule based on the specific needs of your yard. For example, if it is raining outside, Rachio will automatically turn off. Rachio said homeowners using its product save about 50 percent of their outdoor water use. Rachio is currently available for $200 for eight sprinkler zones around the yard.