Rachio
Rachio 3 Smart Sprinkler Controller (8-Zone)
$199.99
Released 2018
Best Smart Sprinkler Controllers · head-to-head
Rachio 3 Smart Sprinkler Controller (8-Zone) vs Rain Bird ST8I-2.0 Smart Indoor WiFi Irrigation Timer
A sourced, side-by-side comparison. Rain Bird ST8I-2.0 Smart Indoor WiFi Irrigation Timer is cheaper at $169. Every spec and price links to its source.
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Rain Bird
Rain Bird ST8I-2.0 Smart Indoor WiFi Irrigation Timer
$169Cheaper
Released 2019
Which is better: the Rachio 3 Smart Sprinkler Controller (8-Zone) or Rain Bird ST8I-2.0 Smart Indoor WiFi Irrigation Timer?
On the specs we track, they're closely matched. The Rain Bird ST8I-2.0 Smart Indoor WiFi Irrigation Timer is the cheaper at $169.
See Rachio 3 Smart Sprinkler Controller (8-Zone) on Amazon Check Rain Bird ST8I-2.0 Smart Indoor WiFi Irrigation Timer price
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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) | Rain Bird ST8I-2.0 Smart Indoor WiFi Irrigation Timer |
|---|---|---|
| US price | $199.99 | $169 |
| Brand | Rachio | Rain Bird |
| Released | 2018 | 2019 |
| Zones | 8 | 8 |
| Hub required | No | No |
| Weather intelligence | Yes | Yes |
| Indoor outdoor rating | indoor; outdoor enclosure sold separately | indoor only (ST8O-2.0 is outdoor variant) |
| Works with alexa google | Yes | Yes |
| Works with homekit | No | No |
| Epa watersense | Yes | Yes |
| App control | Yes | Yes |
| Expandable zones | No | No |
Sources — Rachio 3 Smart Sprinkler Controller (8-Zone): rachio.com (verified 2026-06-20). Rain Bird ST8I-2.0 Smart Indoor WiFi Irrigation Timer: store.rainbird.com (verified 2026-06-20).
What's the difference between the Rachio 3 Smart Sprinkler Controller (8-Zone) and Rain Bird ST8I-2.0 Smart Indoor WiFi Irrigation Timer?
Where the two actually differ on the specs we track (1 of 9). Matching specs are omitted.
- Indoor outdoor rating: Rachio 3 Smart Sprinkler Controller (8-Zone) indoor; outdoor enclosure sold separately vs Rain Bird ST8I-2.0 Smart Indoor WiFi Irrigation Timer indoor only (ST8O-2.0 is outdoor variant)
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.
Rain Bird ST8I-2.0 Smart Indoor WiFi Irrigation Timer
No sourced tester review yet.