At Yarbo, from $7,299checked
Check priceWe earn a commission.Y40 Core with Lawn Mower Pro Module
An RTK GPS plus camera robot mower at $5,999 with 6.2 acres, a 70% slope limit and a 20 inch cutting width, with no antenna.
- Max lawn size
- 6.2 acres
- Max slope
- 70 %
- Navigation
- RTK GPS + camera
- Cutting width
- 20 in
Our verdict
This is a modular machine for estates, not suburban yards. As of November 9, 2026 it is $3,700 above the typical RTK GPS plus camera mower, $2,299 (median of 27 in our data), but $968 per acre is about 68% below the $3,000 median because it covers 6.2 acres. It lists 60 dB noise, IPX6 water protection, and a weight of 216.4 lb. Warranty and runtime are not in our data.
The nearest alternative is the Mammotion LUBA 2 AWD 10000HX (High) at $4,499 for 2.5 acres, an 80% limit and a 3 year warranty. The trimmer-equipped Yarbo Y40 Core with Lawn Mower Pro and Trimmer Modules is $7,299 for the same area.
Choose it for several acres. Skip it for anything under 2 acres, where the Mammotion costs $1,500 less.
Strengths and weak spots
Worked out from the specs and prices on this page against the other robot lawn mowers we compare.
Strengths
- 6.2 acres: best on max lawn size of the 46 robot lawn mowers we have this data for (tied with 1 more).
- $968 / acre: best on price per acre of the 46 robot lawn mowers we have this data for.
- 20 in: best on cutting width of the 45 robot lawn mowers we have this data for (tied with 1 more).
Weak spots
- $5,999: 98% of the 52 robot lawn mowers we compare do better on price.
Where it ranks
How it scored in each list. A longer bar is better for you.
- Rank 1
Best Robot Mowers for Large Yards
Number 1 of 40 ranked
- Rank 1
Best Quiet Robot Mowers
Number 1 of 37 ranked
Specifications
Each value links to the page it came from.
| Max lawn size | 6.2 acres | source, checked |
|---|---|---|
| Max slope | 70 % | source, checked |
| Navigation | RTK GPS + camera | source, checked |
| No boundary wire | Yes | source, checked |
| Needs RTK antenna | No | source, checked |
| Cutting width | 20 in | source, checked |
| Cutting height | 0.8–4 in | source, checked |
| All-wheel drive | Not listed | |
| Noise | 60 dB | source, checked |
| Water rating | IPX6 | source, checked |
| Weight | 216.4 lb | source, checked |
| Warranty | Not listed |
Prices
- $5,999at Yarbo, price checked Check priceWe earn a commission.
- Amazonprice shown at AmazonCheck price at AmazonWe earn a commission.
Similar models
At Navimow, from $4,499checked
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At Worx, from $3,699.99checked
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Keep reading
Best Robot Mowers for Small Yards
Best robot mower for a small yard: every published model rated for 0.25 acre or less, sorted by price, with area, slope and noise, plus how to size your lawn.
Can Robot Mowers Get Wet? Water Ratings Explained
Can robot mowers get wet? Learn what IPX5, IPX6 and IP66 mean, then see the stated robot mower rain and water rating for each published model, with prices.
Robot Mowers on Slopes
Slope ratings come in percent or degrees, and a 45 percent rating is only about 24 degrees. Measure your steepest spot and convert it before you trust a rating.