OtO Smart Sprinkler vs Tertill Weeding Robot
Researched by Riley Hart · prices checked Nov 4, 2026
As of Nov 4, 2026, the OtO Smart Sprinkler costs $589 and the Tertill Weeding Robot costs $349, so the Tertill Weeding Robot is $240 cheaper. The Tertill Weeding Robot scores higher in our ranking (8.5 vs 6.4 out of 10). Pick the OtO Smart Sprinkler for yards with no outlet near the tap. Pick the Tertill Weeding Robot for small edged vegetable beds. The Tertill Weeding Robot wins 2 of 3 points we can measure.
Who wins, point by point
The Tertill Weeding Robot wins 2 of 3 points we can measure. Built from today's prices, the specs and independent tests for these two robots.
| Smart Sprinkler | Weeding Robot | Winner | |
|---|---|---|---|
| Price today | $589 | $349 | Weeding Robot |
| Bob Vila score | 3.5/5 | 8.6/10 | Weeding Robot |
| Runtime | 60 min | 5 min | Smart Sprinkler |
- You care most about runtime (60 min vs 5 min)
- Best for yards with no outlet near the tap
- You want to spend less (saves $240)
- You care most about bob vila score (8.6/10 vs 3.5/5)
- Best for small edged vegetable beds
- Type
- Hose fed 360 degree
- Coverage
- OtO now claims up
- Power
- Built in solar panel
- Weather
- No IP rating published
Solar hose sprinkler that aims water at zones you draw in an app
Full OtO Smart Sprinkler review, pros and cons →- Type
- Solar powered weeding
- Coverage
- Up to 200 sq ft
- Power
- Built in solar panel
- Weather
- Waterproof shell
Solar puck that trims young weeds in small fenced veggie beds
Full Tertill Weeding Robot review, pros and cons →Side by side
| OtO Smart Sprinkler | Tertill Weeding Robot | |
|---|---|---|
| Price | $589 | $349 |
| 3 year cost | $589 | $349 |
| Our score | 6.4/10 | 8.5/10 |
| Rank in Yard and garden | #4 | #2 |
| Status | on sale | preorder |
| Warranty | 2 years; 30 day money back | n/a |
| Type | Hose fed 360 degree sprinkler that varies pressure and stream arc to hit mapped points (OtO, The Smart Home Hookup) | Solar powered weeding robot with a spinning string trimmer and four driven wheels (Bob Vila) |
| Coverage | OtO now claims up to 5,000 sq ft and 40 ft reach; Bob Vila listed 2,800 sq ft and 30 ft in 2024 | Up to 200 sq ft per robot (Bob Vila, Pro Tool Reviews); Reviewed.com was told about 100 sq ft in 2019 and saw it get stuck in a 640 sq ft tilled bed |
| Power | Built in solar panel needing about 3 hours of direct sun a day, or the included 50 ft power cable (OtO store) | Built in solar panel about 4.3 x 5.3 in feeding a lithium ion battery; no charger or dock (Bob Vila) |
| Runtime | Runs app schedules; one Smart Home Hookup quarter inch run took 1 hr 48 min, about 3 times as long as the Aiper IrriSense 2 | Short runs of 2 to 5 minutes, about 2 hours of total driving per day in good sun; less in cloudy weather (Bob Vila) |
| Weather rating | No IP rating published; winterize in the app, drain and store indoors (OtO store) | Waterproof shell and lives outside all season (Tertill store); no IP rating published |
| App | OtO app for iOS and Android on 2.4 GHz Wi-Fi, rain and wind skip (Bob Vila, OtO store) | Bluetooth link to a phone (Reviewed.com, 2019); daily use is one button, 5 LEDs and chimes (Bob Vila) |
| Setup | Steel bracket for ground, wall or post; 5/8 in hose; Bob Vila lists at least 50 PSI | Needs a solid border about 3 to 4 in high, plants 12 in apart and 12 in from the border; no wire or GPS (Bob Vila, Reviewed.com) |
| Maintenance | Treatment cartridge feature was disabled after Rain Bird bought OtO in April 2025 (The Smart Home Hookup) | Swap the trimmer string about once a month (Bob Vila); 10 spare strings in the box (Tertill store) |
| Dimensions | n/a | Just over 8 in across, 4.5 in high (Bob Vila) |
| Weight | n/a | 2.5 lb (Bob Vila) |
| Best for | yards with no outlet near the tap | small edged vegetable beds |
| Skip if | you want even, lawn wide coverage | your beds are large, uneven or already overgrown |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
OtO Smart Sprinkler
- Bob Vila (3.5/5): A month of testing in southern Ohio: easy setup, ran daily at 6 a.m. in hot weather and skipped watering during a rainy week. Source
- The Smart Home Hookup: Three cup tests averaged 47 percent distribution uniformity, with some spots getting over 4 times the water of nearby ones; a quarter inch run took 1 hr 48 min. Reviewer said it fundamentally fails as a sprinkler. Source
Tertill Weeding Robot
- Bob Vila (8.6/10): Over about two months beside an untreated control bed, the Tertill bed stayed nearly weed free while the control grew weeds over 14 in tall; only a band under 1 in wide along the border sprouted. Source
- Pro Tool Reviews: Cleared short weeds in a raised bed in a couple of days, but all three test units stopped working within months in Florida humidity, rain and sun, and the site withdrew its recommendation. Source
Questions buyers ask
Which is better, the OtO Smart Sprinkler or the Tertill Weeding Robot?
The Tertill Weeding Robot scores higher in our ranking (8.5 vs 6.4 out of 10). Pick the OtO Smart Sprinkler for yards with no outlet near the tap. Pick the Tertill Weeding Robot for small edged vegetable beds.
Which is cheaper?
The Tertill Weeding Robot at $349, versus $589 for the OtO Smart Sprinkler, checked Nov 4, 2026.
What is the difference between the Smart Sprinkler and the Weeding Robot?
Type: Hose fed 360 degree sprinkler that varies pressure and stream arc to hit mapped points… on the Smart Sprinkler, Solar powered weeding robot with a spinning string trimmer and four driven wheels (Bob… on the Weeding Robot. Coverage: OtO now claims up to 5,000 sq ft and 40 ft reach; Bob Vila listed 2,800 sq ft and 30 ft… on the Smart Sprinkler, Up to 200 sq ft per robot (Bob Vila, Pro Tool Reviews); Reviewed.com was told about 100… on the Weeding Robot. Power: Built in solar panel needing about 3 hours of direct sun a day, or the included 50 ft… on the Smart Sprinkler, Built in solar panel about 4.3 x 5.3 in feeding a lithium ion battery; no charger or… on the Weeding Robot.
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