After spending two months with six smart irrigation controllers in a sunny South Carolina yard, we’re confident the Rachio Smart Sprinkler Controller (Generation 2) is the best choice for most people with an in-ground sprinkler system. Any smart controller will save you water and money compared with a simple timer, but the Rachio is the best of the ones we tested. It’s available in eight- and 16-zone models (you can add a second device to control more zones), responds to real-time weather conditions and forecasts, offers the best selection of customizable and intelligent watering schedules, and gives you control of your sprinklers from anywhere in the world through its intuitive app. It provides the simplest and best user experience, as long as you have reliable Internet connectivity.

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