Rachio
Rachio 3 Smart Sprinkler Controller (8-Zone)
$199.99Cheaper
Released 2018
Best Smart Sprinkler Controllers · head-to-head
Rachio 3 Smart Sprinkler Controller (8-Zone) vs Hunter Hydrawise Pro-C HPC-400 WiFi Controller (4-Zone)
A sourced, side-by-side comparison. Rachio 3 Smart Sprinkler Controller (8-Zone) is cheaper at $199.99. Every spec and price links to its source.
Hunter Industries
Hunter Hydrawise Pro-C HPC-400 WiFi Controller (4-Zone)
$200.33
Released 2023
Which is better: the Rachio 3 Smart Sprinkler Controller (8-Zone) or Hunter Hydrawise Pro-C HPC-400 WiFi Controller (4-Zone)?
On the specs we track, they're closely matched. The Rachio 3 Smart Sprinkler Controller (8-Zone) is the cheaper at $199.99.
See Rachio 3 Smart Sprinkler Controller (8-Zone) on Amazon See Hunter Hydrawise Pro-C HPC-400 WiFi Controller (4-Zone) on Amazon
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Rachio 3 Smart Sprinkler Controller (8-Zone) | Hunter Hydrawise Pro-C HPC-400 WiFi Controller (4-Zone) |
|---|---|---|
| US price | $199.99 | $200.33 |
| Brand | Rachio | Hunter Industries |
| Released | 2018 | 2023 |
| Zones | 8 | 4 |
| Hub required | No | No |
| Weather intelligence | Yes | Yes |
| Indoor outdoor rating | indoor; outdoor enclosure sold separately | indoor/outdoor (protected location) |
| Works with alexa google | Yes | Yes |
| Works with homekit | No | No |
| Epa watersense | Yes | Yes |
| App control | Yes | Yes |
| Expandable zones | No | Yes |
Sources — Rachio 3 Smart Sprinkler Controller (8-Zone): rachio.com (verified 2026-06-20). Hunter Hydrawise Pro-C HPC-400 WiFi Controller (4-Zone): bigirrigation.com (verified 2026-06-20).
What's the difference between the Rachio 3 Smart Sprinkler Controller (8-Zone) and Hunter Hydrawise Pro-C HPC-400 WiFi Controller (4-Zone)?
Where the two actually differ on the specs we track (3 of 9). Matching specs are omitted.
- Zones: Rachio 3 Smart Sprinkler Controller (8-Zone) 8 vs Hunter Hydrawise Pro-C HPC-400 WiFi Controller (4-Zone) 4
- Indoor outdoor rating: Rachio 3 Smart Sprinkler Controller (8-Zone) indoor; outdoor enclosure sold separately vs Hunter Hydrawise Pro-C HPC-400 WiFi Controller (4-Zone) indoor/outdoor (protected location)
- Expandable zones: Rachio 3 Smart Sprinkler Controller (8-Zone) false vs Hunter Hydrawise Pro-C HPC-400 WiFi Controller (4-Zone) true
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Rachio 3 Smart Sprinkler Controller (8-Zone)
Two whitelisted hands-on testers rate the Rachio 3 the category's best. Reviewed names the 8-zone model Best Overall for its easy install and deep feature set, and TechHive (hands-on with the identical 16-zone variant, which shares the same hardware and firmware) calls it the world's best smart sprinkler controller. Neither source reports any lab measurements. (2 sourced reviews.)
Praised: Easy, tool-free installation with revamped fingertip wire connectors; Deep feature set: fine-tuned smart scheduling and Weather Intelligence rain/wind/freeze skips; App is easy to navigate despite a busy interface.
Flagged: High-pitched squeal when the unit powers up; Expensive, priced ~$50 higher than the prior generation; Busy app interface.
Hunter Hydrawise Pro-C HPC-400 WiFi Controller (4-Zone)
No sourced tester review yet.