WORX Robot Lawn Mower 4WD for 1/4 Acre: lawn size, cutting width and how far it drives
A mower rated for 10,890 sq ft with a 8.7 in deck, measured against the 40 RTK robot mowers in this corpus — including how far it must travel to cut that lawn once, which the listing does not state.
Every figure below is read from the manufacturer’s own listing. We do not test robot mowers and nothing here has been unboxed, mapped or driven across a lawn. Where the listing is silent, this page prints not stated rather than a plausible default, and the figure no manufacturer publishes — the distance the mower covers in one full cut — is arithmetic on two figures that are published, shown with its working.
At a glance
| Specification | Stated |
|---|---|
| Lawn size claimed | 10,890 sq ft |
| Cutting width | 8.7 in |
| Distance per full cut (derived) | 2.8 miles |
| Navigation | RTK + camera vision |
| Boundary | wire-free |
| Rated slope | 84% (about 40°) |
| Drive | all-wheel drive stated |
| Cutting height | 1.6 in |
| Height range | standard for this corpus |
| Lawn class | 1/4 – 1/2 acre |
| Price band | $1,000–2,000 |
| Brand | WORX |
How far it has to drive
A robot mower cuts a strip as wide as its deck and then comes back for the next one. Divide the lawn it claims by the width it cuts and this one has to travel 2.8 miles to get over 10,890 sq ft once — at 8.7 in a pass. Neither number is a secret and their product is on no listing anywhere, which is a shame, because it is the figure that explains the rest of the machine: why it is out every day instead of twice a week, why it runs for hours rather than minutes, and why two mowers sold for the same lawn can behave nothing like each other.
It also puts the deck width in proportion. Cutting width is the specification that reads like a detail and behaves like the main event: the distance is inversely proportional to it, so an inch or two either way moves this figure by miles. A wider deck is not a refinement over a narrower one on the same lawn, it is straightforwardly less driving — less wear, fewer hours, fewer charge cycles to reach the same cut.
This is a distance, not a duration. Turning it into hours needs a travel speed, and not one listing in this corpus publishes one — so this site does not estimate it. Overlap between passes, time spent turning, and the trip back to the dock all add to the real figure too. Treat 2.8 miles as the floor on how far the machine goes, and a way to compare two mowers on the same lawn, rather than as a prediction of your afternoon.
The slope figure, in a unit you can picture
This listing rates the mower for 84%, which is rise over run — and nobody stands at the bottom of a bank and thinks in percent. As an angle that is about 40 degrees. The rating is measured on dry grass, driving straight up. Wet grass is harder, a bank at the very edge of the cutting area is harder, and a turn taken across the fall line is harder than either, so read the number as a ceiling rather than a specification of what it will manage in your garden on a damp morning.
How it compares with its own class
Against the 40 RTK robot mowers in this corpus, rather than against a generic alternative:
| Measure | This one | Class median | Where it sits |
|---|---|---|---|
| Lawn size claimed | 10,890 sq ft | 10,890 sq ft | the same as the class median |
| Cutting width | 8.7 in | 8.7 in | the same as the class median |
| Distance per full cut (derived) | 2.8 miles | 3.1 miles | below the class median of 16542 ft |
| Rated slope | 84% (40°) | 45% (24°) | above the class median of 45 % |
A mower on the class median is not a worse buy than one above it. A larger claimed lawn size is the specification most easily inflated, because it is a claim about hours available rather than a physical limit — and the mower that claims less may simply be describing itself more honestly. The cut distance is the figure worth weighing, because it is arithmetic on two numbers rather than a marketing judgement about either.
Where it suits
- A lawn up to about 10,890 sq ft, measured rather than estimated — and measured as mown area, not plot size.
- A garden where burying a perimeter wire is unwelcome, since this one states it does not need one.
- Ground with real fall to it: 84% is about 40 degrees, which is a bank rather than a gentle rise.
- Wet ground or a slope with awkward footing, where all-wheel drive is the difference between climbing and spinning.
- Getting the job done in fewer passes: at 8.7 in this deck is wide for a robot mower, and the distance figure above shows what that buys.
- A lawn small enough that the mower is not driving a marathon to finish a cut.
- An open lawn with a clear view of the sky, which is what RTK positioning needs to be accurate.
Where it does not
What the listing claims
These are the manufacturer’s statements, not findings. Nothing on this page has been measured by anyone here, and a specification stated on a listing is a claim until the unit is in front of you.
It states lawn size claimed, cutting width, distance per full cut, navigation, boundary, rated slope.
The gaps matter as much as the figures. A listing that omits a slope rating is not describing a mower that cannot climb, it is describing itself incompletely — and slope is the specification that most often decides whether a robot mower works in a particular garden at all, because unlike lawn size it cannot be worked around by running the machine more often.
What no listing on this site tells you
Three things decide whether a robot mower earns its place, and none is a specification any manufacturer publishes. The first is whether 10,890 sq ft is one lawn or several. Front and back joined by a path the mower must cross is the common case at this size, and it is the one that separates machines that manage a garden from machines that manage a rectangle. Whether yours can cross unmown ground, and whether it will find its way back, is not on any listing.
The second is what happens when it gets stuck, which it will. All-wheel drive moves where that happens rather than preventing it: this one will climb out of wet ground and off the shallow roots that beach a two-wheel machine, and it will still wedge itself under a shrub, strand itself on a step, or sit spinning on a tree root it drove half over. What matters then is whether it tells you, and how far you walk to find it. Neither is a specification.
The third is the boundary, decided once and lived with. Wire-free is the easier installation and the harder promise: nothing physical stops the machine leaving the lawn, so the edge is only as good as the positioning on a bad day — under trees, against a wall, after the neighbours build something that was not there when it mapped the garden. When it drifts, it drifts into a flower bed rather than stopping at a wire.
Before you decide
Measure the lawn, do not estimate it
10,890 sq ft is a ceiling on mown grass, not on the plot. Beds, paths, the patio and the shed come off before the comparison is fair. People routinely over-estimate a lawn by a third, which at this rating is the difference between a mower that finishes and one that never quite does.
Check the slope where it is steepest
This one is rated 84%, about 40 degrees, measured on dry grass driving straight up. The figure that matters is the worst few feet of your garden rather than its average, and wet grass moves the answer the wrong way — though all-wheel drive is the specification that most often rescues a marginal slope.
Treat marketing language as a claim
Where a phrase on the listing matters to your decision, look for the number behind it: a stated slope percentage rather than a sentence about handling hills, a stated cutting width rather than a promise of efficiency. This listing documents itself better than most in the corpus, which makes the gaps that remain more conspicuous. Where this site could not find a number, it says not stated.
If the lawn size fits and the slope rating clears your worst bank, the current price and availability are on Amazon — this site deliberately does not quote either, because both are stale within days of being read.
Check current price and availability
Compare it against the rest of its class
The finder below is filtered to RTK robot mowers. Every result shows its claimed lawn size and cutting width, measured against the median for its own class.
40 robot mowers match
Lymow One Plus Robot Lawn Mower, Wire-Free RTK+Vision Navigation, 1.73 Acres Daily Coverage, 100% Slope (45°) Climbing, 1.2"-4" Cut Height, AWD All-Terrain Automatic Robotic Mower, App Control
- Navigation
- RTK + Camera
- Cutting width
- 16.0in
- Lowest cut
- 30mm
- Rated slope
- 100%
- W x D x H
- 22×29×13in
- Weight
- 22lb
Rated for
75,359sq ft
RTK · 1 acre and up · 11 robot mowers
Claim density
1,854sq ft claimed per cm of deck
0% vs the 1,854 median — typical for lawns this size
Rated area is +73% against the class median of 43,560.
Sunseeker X7 AWD Robot Lawn Mower, RTK, Vision AI, 0.75 Acre, Wire-Free
- Navigation
- RTK + Camera
- Cutting width
- 14.0in
- Lowest cut
- 20mm
- Rated slope
- not stated
- W x D x H
- 20×29×10in
- Weight
- 30lb
Rated for
32,670sq ft
RTK · 1/2 to 1 acre · 16 robot mowers
Claim density
919sq ft claimed per cm of deck
-7% vs the 986 median — typical for lawns this size
Rated area is 0% against the class median of 32,670.
Sunseeker X5 AWD Robot Lawn Mower, RTK, Vision AI, 0.5 Acre, Wire-Free
- Navigation
- RTK + Camera
- Cutting width
- 8.7in
- Lowest cut
- 41mm
- Rated slope
- not stated
- W x D x H
- 16×27×10in
- Weight
- 26lb
Rated for
21,780sq ft
RTK · 1/2 to 1 acre · 16 robot mowers
Claim density
986sq ft claimed per cm of deck
0% vs the 986 median — typical for lawns this size
Rated area is -33% against the class median of 32,670.
WORX Robot Lawn Mower 4WD for 1 Acre, No Perimeter Wire, WR344
- Navigation
- RTK + Camera
- Cutting width
- 8.7in
- Lowest cut
- 40mm
- Rated slope
- 84%
- W x D x H
- 19×26×11in
- Weight
- not stated
Rated for
43,560sq ft
RTK · 1 acre and up · 11 robot mowers
Claim density
1,971sq ft claimed per cm of deck
+6% vs the 1,854 median — typical for lawns this size
Rated area is 0% against the class median of 43,560.
roborock RockMow X130H Robot Lawn Mower, Wire-Free 4WD Robotic Lawn Mower with Full-Band RTK + Quad-Vision Navigation, Auto Mapping, Multi-Sensor AI Obstacle Avoidance, 80% Slope, Covers Up to 1 Acre
- Navigation
- RTK + Camera
- Cutting width
- 9.5in
- Lowest cut
- 41mm
- Rated slope
- 80%
- W x D x H
- 11×25×18in
- Weight
- 50lb
Rated for
43,560sq ft
RTK · 1 acre and up · 11 robot mowers
Claim density
1,805sq ft claimed per cm of deck
-3% vs the 1,854 median — typical for lawns this size
Rated area is 0% against the class median of 43,560.
Mammotion LUBA 2 AWD 3000HX Robot Lawn Mower with 4G, All-Wheel-Drive for 80% Slope, Perimeter Wire Free for 0.75 Acre, UltraSense AI Vision & RTK Auto-Mapping, 2.2"-4.0" Adjustable Cutting Height
- Navigation
- RTK + Camera
- Cutting width
- 15.7in
- Lowest cut
- 56mm
- Rated slope
- 80%
- W x D x H
- 20×27×12in
- Weight
- not stated
Rated for
32,670sq ft
RTK · 1/2 to 1 acre · 16 robot mowers
Claim density
819sq ft claimed per cm of deck
-17% vs the 986 median — more cutting width for the area it claims
Rated area is 0% against the class median of 32,670.
WORX Robot Lawn Mower 4WD for 1/2 Acre, No Perimeter Wire, WR342
- Navigation
- RTK + Camera
- Cutting width
- 8.7in
- Lowest cut
- 40mm
- Rated slope
- 84%
- W x D x H
- 11×26×19in
- Weight
- not stated
Rated for
21,780sq ft
RTK · 1/2 to 1 acre · 16 robot mowers
Claim density
986sq ft claimed per cm of deck
0% vs the 986 median — typical for lawns this size
Rated area is -33% against the class median of 32,670.
Sunseeker X3 Plus Robot Lawn Mower, RTK, Vision AI, 0.3 Acre, Wire-Free
- Navigation
- RTK + Camera
- Cutting width
- 8.0in
- Lowest cut
- 41mm
- Rated slope
- not stated
- W x D x H
- 15×24×10in
- Weight
- 20lb
Rated for
13,068sq ft
RTK · 1/4 to 1/2 acre · 28 robot mowers
Claim density
643sq ft claimed per cm of deck
+19% vs the 543 median — a heavier claim for the deck it has
Rated area is +20% against the class median of 10,890.
TerraMow V1000 Robotic Lawn Mower, Max 0.3 Acre, No Wire/RTK, Auto Mapping
- Navigation
- RTK + Camera
- Cutting width
- 8.0in
- Lowest cut
- 25mm
- Rated slope
- not stated
- W x D x H
- 16×24×13in
- Weight
- 26lb
Rated for
13,068sq ft
RTK · 1/4 to 1/2 acre · 28 robot mowers
Claim density
644sq ft claimed per cm of deck
+19% vs the 543 median — a heavier claim for the deck it has
Rated area is +20% against the class median of 10,890.
ANTHBOT M5 Robot Lawn Mower,RTK+NRTK Navigation Perimeter Wire Free 1/4 Acre, Vision Obstacle Avoidance Robotic Lawnmower with Automatic Mapping Zone Division, 45% Slope, App Control
- Navigation
- RTK + Camera
- Cutting width
- 7.9in
- Lowest cut
- 30mm
- Rated slope
- 45%
- W x D x H
- 15×20×10in
- Weight
- 22lb
Rated for
10,890sq ft
RTK · 1/4 to 1/2 acre · 28 robot mowers
Claim density
543sq ft claimed per cm of deck
0% vs the 543 median — typical for lawns this size
Rated area is 0% against the class median of 10,890.
ANTHBOT M9 Robotic Lawn Mower, Perimeter Wire Free 0.3 Acre, AI Vision+ RTK Positioning, Obstacle Detection & Smart Scheduling, Auto Mapping, App Control, Compact Robotic Lawnmower 45% Slope
- Navigation
- RTK + Camera
- Cutting width
- 7.9in
- Lowest cut
- 31mm
- Rated slope
- 45%
- W x D x H
- 15×20×10in
- Weight
- 22lb
Rated for
10,890sq ft
RTK · 1/4 to 1/2 acre · 28 robot mowers
Claim density
543sq ft claimed per cm of deck
0% vs the 543 median — typical for lawns this size
Rated area is 0% against the class median of 10,890.
WORX Robot Lawn Mower 4WD for 1/4 Acre, No Perimeter Wire, WR341
- Navigation
- RTK + Camera
- Cutting width
- 8.7in
- Lowest cut
- 40mm
- Rated slope
- 84%
- W x D x H
- 11×26×19in
- Weight
- not stated
Rated for
10,890sq ft
RTK · 1/4 to 1/2 acre · 28 robot mowers
Claim density
493sq ft claimed per cm of deck
-9% vs the 543 median — typical for lawns this size
Rated area is 0% against the class median of 10,890.
Related
- RTK Robot Mowers — the full class, with baselines for every specification.
- Robot mowers for slopes — what a slope rating means, and where it stops meaning it.
- The full robot mower finder — unfiltered, every navigation type.
- How we compile these figures.