Guides / Sprinklers · Updated
Smart sprinkler controllers compared
Specs from each maker's own page or tech sheet; savings from EPA WaterSense. Checked November 2026.
Short answer
Pick one with at least as many zones as you have, that works with your Wi-Fi, and that carries the EPA WaterSense label if you want a utility rebate. EPA says a WaterSense weather-based controller saves an average home nearly 7,600 gallons a year.
Side by side
| Controller | Zones | Wi-Fi | WaterSense |
|---|---|---|---|
| Rachio 3 | 4, 6, 8, 12 or 16 | 2.4 or 5 GHz | Not stated on Rachio's pages |
| Rain Bird ARC8 | 8 | 2.4 GHz | “Meets EPA WaterSense Criteria, as certified by ICC-ES” |
| Rain Bird ESP-ME3 | 4 to 22 (modules) | Add-on Wi-Fi module | “WaterSense© certified when installed with Rain Bird WiFi Module” |
| Orbit B-hyve XR | 8 or 16 | 2.4 or 5 GHz, Bluetooth | “EPA WaterSense label” |
Rachio's own pages don't state a WaterSense label, so check EPA's product list before counting on a rebate. Rain Bird's ESP-ME3 is WaterSense certified only with its Wi-Fi module. EPA's bigger figure, up to 15,000 gallons a year, covers all WaterSense controllers, not just weather-based ones.
See what one would save on your own yard with the smart controller savings calculator, and set run times with the sprinkler run time calculator.