Grillbot Automatic Grill Cleaning Robot vs Tertill Weeding Robot
Researched by Riley Hart · prices checked Nov 4, 2026
As of Nov 4, 2026, the Grillbot Automatic Grill Cleaning Robot costs $125 and the Tertill Weeding Robot costs $349, so the Grillbot Automatic Grill Cleaning Robot is $224 cheaper. The Tertill Weeding Robot has a published review score and ranks #2 in our yard and garden robots ranking; the Grillbot Automatic Grill Cleaning Robot is not scored yet. Pick the Grillbot Automatic Grill Cleaning Robot for large lidded gas grills. Pick the Tertill Weeding Robot for small edged vegetable beds. The Grillbot Automatic Grill Cleaning Robot wins 2 of 2 points we can measure.
Who wins, point by point
The Grillbot Automatic Grill Cleaning Robot wins 2 of 2 points we can measure. Built from today's prices, the specs and independent tests for these two robots.
| Grillbot Automatic Grill Cleaning Robot | Weeding Robot | Winner | |
|---|---|---|---|
| Price today | $125 | $349 | Grillbot Automatic Grill Cleaning Robot |
| 3 year cost | $176 | $349 | Grillbot Automatic Grill Cleaning Robot |
- You want to spend less (saves $224)
- Best for large lidded gas grills
- Best for small edged vegetable beds
- Type
- Grill grate cleaning
- Coverage
- Drives itself across
- Power
- Rechargeable battery
- Weather
- None published
Battery robot that scrubs grill grates while you close the lid
Full Grillbot Automatic Grill Cleaning Robot 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
| Grillbot Automatic Grill Cleaning Robot | Tertill Weeding Robot | |
|---|---|---|
| Price | $125 | $349 |
| 3 year cost | $176 | $349 |
| Our score | Not scored yet | 8.5/10 |
| Rank in Yard and garden | #5 | #2 |
| Status | on sale | preorder |
| Warranty | 1 year limited; excludes water damage, burns and falls off the grill | n/a |
| Type | Grill grate cleaning robot with 3 electric motors and 3 rotating brushes (Grillbot spec sheet) | Solar powered weeding robot with a spinning string trimmer and four driven wheels (Bob Vila) |
| Coverage | Drives itself across the grates of lidded grills; Trusted Reviews found it drives off open grills and does not fit under low lids like a Weber Smokey Joe | 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 | Rechargeable battery with AC adapter (Grillbot store); Trusted Reviews says a full charge takes 8 hours | Built in solar panel about 4.3 x 5.3 in feeding a lithium ion battery; no charger or dock (Bob Vila) |
| Runtime | 10, 20 or 30 minute cycles set by pressing the button 1 to 3 times (TechHive) | 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 | None published; let the grill cool below 250 F before use (Grillbot store) | Waterproof shell and lives outside all season (Tertill store); no IP rating published |
| App | None, single button control (Grillbot store; Bluetooth is only on a separate apron product) | Bluetooth link to a phone (Reviewed.com, 2019); daily use is one button, 5 LEDs and chimes (Bob Vila) |
| Setup | Place on cooled grates, close the lid, press start | 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 | Brushes are dishwasher safe; maker advises new brushes each season or after 100 uses (TechHive); nylon or stainless sets $16.95 (Grillbot store) | Swap the trimmer string about once a month (Bob Vila); 10 spare strings in the box (Tertill store) |
| Dimensions | Robot size not published; retail box 3.98 x 9.25 x 9.05 in (Grillbot spec sheet) | Just over 8 in across, 4.5 in high (Bob Vila) |
| Weight | 3.47 lb boxed (Grillbot spec sheet) | 2.5 lb (Bob Vila) |
| Best for | large lidded gas grills | small edged vegetable beds |
| Skip if | you have a small, open or low lid grill | 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
Grillbot Automatic Grill Cleaning Robot
- TechHive: Cleaned months of baked on residue from a 36 in built in gas grill, but brass bristles missed the bottom of thick grates, needing a flip and a second 30 minute run, and it struggled on a griddle without crossbars. Source
- Trusted Reviews: After a 30 minute clean the grill looked about as clean as 2 minutes with a metal scouring pad; it drove off a lidless grill and would not fit under a small grill lid. Verdict: a total waste of money. 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 Grillbot Automatic Grill Cleaning Robot or the Tertill Weeding Robot?
The Tertill Weeding Robot has a published review score and ranks #2 in our yard and garden robots ranking; the Grillbot Automatic Grill Cleaning Robot is not scored yet. Pick the Grillbot Automatic Grill Cleaning Robot for large lidded gas grills. Pick the Tertill Weeding Robot for small edged vegetable beds.
Which is cheaper?
The Grillbot Automatic Grill Cleaning Robot at $125, versus $349 for the Tertill Weeding Robot, checked Nov 4, 2026. Over 3 years with running costs: $176 vs $349.
What is the difference between the Automatic Grill Cleaning Robot and the Weeding Robot?
Type: Grill grate cleaning robot with 3 electric motors and 3 rotating brushes (Grillbot spec… on the Automatic Grill Cleaning Robot, Solar powered weeding robot with a spinning string trimmer and four driven wheels (Bob… on the Weeding Robot. Coverage: Drives itself across the grates of lidded grills; Trusted Reviews found it drives off… on the Automatic Grill Cleaning Robot, Up to 200 sq ft per robot (Bob Vila, Pro Tool Reviews); Reviewed.com was told about 100… on the Weeding Robot. Power: Rechargeable battery with AC adapter (Grillbot store); Trusted Reviews says a full… on the Automatic Grill Cleaning Robot, 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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