RELEASED 2019.04REASSESSED 2026.08.07

Worx

Worx Landroid M 20V

Name: Worx Landroid M 20V
Brand: Worx

A containment-based cordless mower trading installation effort for hands-off operation in defined yards. Suited for owners accepting boundary wire overhead and battery-limited runtime.

Superseded byWorx Landroid Vision Cloud WR320Worx replaced the wire-guided Landroid line with Landroid Vision Cloud; the WR320 is the half-acre model that covers this one's yard size.

Autonomy Ladder

Why Level II.

One five-rung scale, every category, from acting only on command to working unsupervised anywhere.

VGeneralized AutonomyAny task, any setting. No consumer robot has reached it.
IVEnvironmental AutonomyCopes with everyday clutter and frees itself, shown by independent testing.
IIIConditional AutonomyFinishes whole jobs in familiar spaces; struggles at the edges.
To reach Level IIIMost sessions finish without intervention. Rescue is occasional, not routine.
IIAssisted AutonomyThis robot

Worx Landroid M 20V runs preset routines on its own, and the owner is its recovery system.
What it does on its own
- Autonomous docking when battery depletes
- Boundary wire containment without remote override
- Weather-triggered return to dock during rain
- Mulch blade cuts and disperses clippings without collection
- App notification of mowing completion and errors
Why this level
- Wire-guided boundary enforcement removes human mid-session steering, but mower operates within fixed perimeter without adaptive obstacle detection or terrain reasoning.
- Path optimization through probabilistic algorithms improves coverage relative to pure random walk.
- Classified at Level II because autonomous navigation is limited to predefined boundary geometry, not environmental understanding.
What holds it at Level II
- Boundary wire defines only yard perimeter; interior obstacles require manual wire loops or mower collides with them.
- No LiDAR, vision, or ultrasonic sensing; relies solely on perimeter signal, rain sensor, and lift and tilt cutoffs.
- Random path algorithm does not guarantee full coverage; unmowed patches common in complex layouts.
- Cannot adapt to soft ground or to grade beyond the published slope rating; loses traction and stops.
Autonomy dimension 44 / 100 · 3 sources reviewed
IManual AutomationOne action on command; no independent operation.

How we assign a level →

Human Readiness

Ready Now.

One question: what does buying this robot today walk you into? The state is computed from the record, and recomputed daily.

Ready NowThis robot

Worx Landroid M 20V is on sale, assessed, and nothing on its record argues for waiting.
How this was derived
- Worx Landroid Vision Cloud WR320 is shipping as this robot's successor. This record stays current for owners and buyers of this model; the successor is assessed on its own page.
Notes on the record
- Ready for immediate purchase and deployment.
- Installation requires 1-2 hours for boundary wire layout.
- Charging dock and wire included.
- Ongoing seasonal maintenance is wire inspection and blade set replacement, standard for the category.
On the record
- Shipping since April 2019 · 88 months on the market
- Retail listings on file: Amazon
- Succeeded by Worx Landroid Vision Cloud WR320
- 3 sources reviewed
What would move it
A documented problem, an announced successor, or a withdrawn listing moves it out; the rating recomputes daily.
New to MarketOn sale under 90 days; the ownership record is still forming.
WaitA successor is announced and has not shipped; re-read the decision when it arrives.
Known IssuesDocumented problems stand on the record; read the case before buying.

How we assess readiness →

Robovations Score

How this number was reached

76of 100

StrongAt or above 88% of the 432 robots we scoreand 90% of the 109 scored robot lawn mowers

DeficientLimitedCapableStrongExemplary

Measured on 7 of the 9 inputs14% not counted

Our assessment did not establish an independent source for edge-case recovery, operating envelope on this machine, so those inputs are left out of the score rather than guessed at, and the rest re-weighted to fill the space. A gap in what we have been able to verify is not evidence against the robot. Where a whole pillar has nothing measured, we publish no number at all.

What moved itpoints gained or lost against a typical robot

Carried by

Field failure rate91+3.4
Support longevity93+3.1
Task completion85+2.1

Held back by

Coverage and navigation50−2.0

Capability40% of the score72What it does without you.

Task completion16% of the score85

Evidence

PCMag's tester let the app size the lawn and generate the schedule, and reports it "was followed without issue, requiring a little under three hours to cover my lawn," that "the Cut-To-Edge feature had no trouble trimming the edges," and that the rain sensor postponed and then restarted the cycle on its own. The one stray outside the wire came from his own wire placement near the driveway and never recurred after he moved it.

Coverage and navigation10% of the score50

Evidence

PCMag observed the whole lawn covered in a little under three hours on the auto generated schedule, kept "neat and well trimmed" with the edges cut. Coverage is achieved by run time inside a fixed perimeter wire rather than by a retained plan, which is class normal for a wire bounded mower, so this reads as complete but inefficient rather than systematic.

Edge-case recoverynot countedno source verified50

Evidence

The wire fault is handled exactly as the anchor describes: the mower stops where it stands, reports error E1 wire missing through the app, does not keep cutting and does not leave the property, and waits for a human to splice and press START. Rain is better still, since it returns, waits and resumes unaided. Held below that anchor by two silent modes: a dock connection failure where it docks but does not charge and the battery drains idle unreported, and traction stalls needing manual retrieval.

Operating envelopenot countedno source verified50

Evidence

Rated to a quarter or a third of an acre, with a slope figure the record cannot resolve because Worx publishes 20 degrees on the WR140 page and 30 percent on the WR147 page for the same model family, which is an uncertainty in the envelope rather than a width. Soft ground and thick grass cost traction and stop it, interior features need manual wire loops because nothing senses them, and rain suspends work until the turf dries.

Dependability40% of the score86Whether it keeps doing it.

Field failure rate16% of the score91

Evidence

Seven years in market since April 2019, the longest field record of the mowers here, with reports showing solid reliability over three to five years on maintained units and consistent docking with minimal mid-session stalls while the wire is intact, and no recall. The recurring modes are wear and environment rather than defect: blade dulling, dock contact corrosion in coastal and wet climates, wire severance usually caused by the owner's own yard work, and battery capacity loss after 100-plus cycles with a $150 to $200 commodity replacement.

Software stability14% of the score74

Evidence

Marginally above the silent case. The machine is app-connected and reports completion and errors, and Worx maintains Landroid firmware, so updates ship. What lifts it slightly is duration rather than documentation: seven years of Worx community and retailer reporting surfaces no regression pattern, which is a longer silence than a new machine's. No firmware source is cited for this model and no independent record of update behavior exists.

Support longevity10% of the score93

Evidence

A strong position, and for a reason that survives the manufacturer: the battery is a standard Worx 20V WA3553 pack shared across the whole yard-tool line, priced at $150 to $200 and buyable anywhere, so the machine does not die with its cell. Blades sell twelve to a kit as WA0190 with a spare set already in the box, wire repair kits are stocked, and a 2019 model still has its manual and both product pages published.

Ownership burden20% of the score67What it asks of you.

Routine maintenance12% of the score64

Evidence

Heavier than a docked mower has to be. There is a genuine after-every-use step, inspecting the wheels for wrapped grass and debris, and a weekly one, checking the boundary wire for damage or corrosion and testing the dock charging connection. Monthly clears compacted clippings from the underbody and confirms the cutting disc turns freely, and the annual list includes replacing wire damaged by winter salt and servicing the wheel bearings.

Consumables8% of the score71

Evidence

Blades are close to free, sold twelve to a kit with a spare set in the box and rotated and flipped before replacement, and the battery is a commodity Worx pack at $150 to $200 rather than a service part. Pulled back by cadence rather than price: capacity loss shows after 100-plus charge cycles, which is roughly a heavy season, and the boundary wire is a recurring item, replaced annually where winter salt reaches it and spliced whenever yard work cuts it.

middle half of the databaseits medianthis robot

Reported, not scoredneither measures how well the robot works

Five-year cost$1,125

the cheapest mower here, listing at $900 and selling from $600, with the boundary wire in the box and installed by the owner in one to two hours rather than by a dealer; roughly $375 over five years for blade kits, one commodity Worx 20V battery at $150 to $200 and occasional wire repair. No subscription; the Find My Landroid cellular locator is a separate purchase

Data postureCloud-linked

Account required. Maps and telemetry leave the home; core function survives an outage.

What leaves the homeDocumented

App communication over Wi-Fi and Bluetooth transmits mowing session logs (start time, duration, coverage percentage) and battery telemetry to Worx cloud servers. The base machine carries no GPS: location tracking is the separately sold Find My Landroid cellular module. The boundary is a physical wire loop rather than a stored map, so no yard geometry is held in the account. Standard consumer IoT practices; encryption not independently verified. Reasonably typical for cordless yard equipment category.

On-device processingNo

Read the full methodology →

FIT CHECK

Will the Worx Landroid M 20V work on your yard?

Describe your yard using the controls. Each choice reads the spec sheet for you, flagging where the Worx Landroid M 20V is built for your space and where it isn’t.

Yard size

Terrain

Grass type

Boundary setup

See every robot mower suited to these conditions

A classification of fit for the conditions you set, not a recommendation. Verdicts describe engineering design intent, not test results.

SPECIFICATION

The full spec sheet.

Priced below the category median, with every figure charted against the category below.

Dimensional drawing

Key specificationsManufacturer-published

Footprint: 18.1 × 24.6 in · 10.4 in tall✓
Weight: 29.8 lbs✓
Battery: 80 Wh · Li-ion
Wi-Fi: Supported✓
Cutting width: 7 in✓
Cutting height range: 2-3.5 in✓
Max area: 10,900 sq ft✓
Max slope: 35%✓
Blade system: 3 blades✓
Boundary method: Boundary wire✓

Where it lands · ranked across 126 robot lawn mowersThis robotMedianTypical range

Price$900

$549$5,999

Bottom of range

Noise59dB

50 dB82 dB

Near median

Charge time90min

30 min300 min

Near median

Weight29.8lbs

13 lbs134 lbs

Near median

Position shows where the figure sits across the tracked category, not a quality judgment.

Official referencesManufacturer support Product page

OWNERSHIP

Living with it.

Solid 3-5 year performance for well-maintained units; boundary wire damage and blade wear are primary owner-caused issues.

Field data and firmware notes show consistent docking success and minimal mid-session stalls when wire is intact. Blade dulling requires monthly replacement; battery degradation occurs after 100+ charge cycles.

Owner effort~1.9 hrshands-on per month

Consumables$200replaceable parts / yr

Reliability trend Stableowner-reported arc

What goes wrong · not yet documented independently

The independent record is still forming. Failure modes are listed once an outside source reports them.

Upkeep routine

Each useEvery cycle

Inspect the wheels for wrapped grass and debris.

Weekly52×/yr

Check boundary wire for physical damage or corrosion; test dock charging connection.

Monthly12×/yr

Clear compacted clippings from the underbody and check that the cutting disc turns freely.

Seasonal4×/yr

Inspect battery contacts for corrosion; clean charging dock connectors.

Yearly1×/yr

Replace boundary wire if exposed to winter salt or damage; service wheel bearings.

As neededno fixed schedule

Rotate and flip all three blades together, then replace the full set. A spare set ships in the box; replacements sell twelve to a kit (WA0190).

Cost over time · past the sticker

PurchaseRunning cost

Year 1

$1,100

Year 3

$1,500

Year 5

$1,900

$900 to buy, then about $200 a year for the replaceable parts below. Over three years that is roughly $600 past the sticker price. Excludes electricity and any repairs.

What you replace

BladesAs blades wear

Replacement cadence from the maintenance schedule; prices shown where the source documents them.

Safety notes

CautionBlade engagement safety: Blades disengage at dock with under 3-second stop delay. Verify e-stop before burial.

NoteEntanglement from surface wire: Surface-laid wire poses trip hazard to humans and pets in high-traffic areas.

CautionUnsupervised operation hazard: Blade speed can cause abrasion. Containment wire alone prevents entry from young children.

RECORD

How the assessment has moved.

Every announcement, release and reassessment behind the current classification.

Coming soon

Just launched

Active updates

Settled

Discontinued

Sep 2026 · AssessmentRecord status: Provisional → Pending
Aug 2026 · AssessmentRecord status: Verified → Provisional
Aug 2026 · AssessmentRobovations Score recorded at 76 of 100
Aug 2026 · AssessmentRobovations Score withheld: too little independent evidence
Aug 2026 · AssessmentRobovations Score rescored under v4.2: 66 → 69
Aug 2026 · AssessmentRobovations Score rescored under v4.0: 60 → 66
Jul 2026 · AssessmentRobovations Score revised 59 → 60
Jul 2026 · AssessmentRobovations Score revised 73 → 59
Apr 2026 · AssessmentRobovations Score recorded at 73 of 100
Sep 2024 · UpdateWorx Landroid M WR147 expands line with 4.0Ah battery and 0.25-acre coverage
Apr 2019 · ReleaseWR140 launches commercially in North America

Editorial comparisons

How Worx Landroid M 20V compares.

All comparisons →

Comparison

Robot mowers: does mulch quality or coverage matter more?

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Goal-based

Quiet robot mowers for neighborhood-friendly scheduling: noise levels and timing

Husqvarna Automower 320 NERA + 3 more

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Goal-based

Robot mowers for quarter-to-half-acre yards: where setup effort matches yard scale

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Read comparison

Common questions

What people actually ask.

6 answered

OperationDoes the mower navigate around obstacles like garden beds without hitting them?

No. Boundary wire defines only the perimeter; obstacles within the yard require manual wire loops during installation. Owner reports confirm accidental side-brush contact with unmapped objects.

OperationHow long does boundary wire installation take?

Typically 1–2 hours for a 0.25-acre yard. Wire can be laid on surface or buried 2–3 inches. Worx documentation provides layout templates.

OwnershipWhat maintenance intervals does the blade require?

Worx’s documented sequence is to rotate and flip all three blades together, then replace the set once worn. A spare set ships in the box and replacements sell twelve to a kit (WA0190). The blades are 1 inch two-edged razors hanging from screws on a free-pivoting disc, and they are not sharpened: grinding one removes material the spinning disc depends on for balance and destroys the second cutting edge the design relies on. Dull blades tear grass tips, increasing disease susceptibility.

OperationCan the mower operate during rain?

A rain sensor sends the mower back to the charging base to wait until the lawn dries. The delay is about cut quality and traction on wet turf; the Landroid and its base are built to stay outdoors through the mowing season.

OperationIs the battery interchangeable with other Worx tools?

Yes. Landroid M uses Worx 20V Li-ion packs (WA3553 series), fitting other Worx yard tools. Spare batteries extend mowing capability on longer days.

OperationWhat happens if boundary wire is cut or damaged?

The mower stops. Losing the perimeter signal is the fail-safe condition for a wire-guided mower: the Landroid halts and reports error E1, “Wire missing! Press START to reset.” It does not keep cutting and it does not leave the property under its own power. Recovery means locating the break, splicing it with a repair kit, and pressing START.

Availability

Where it's sold

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Amazon See current listings

Cite / Embed

Reference the Worx Landroid M 20V classification.

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Robovations. "Worx Landroid M 20V: Autonomy Level II (Assisted Autonomy)." Autonomy Ladder™, assessed August 2026. https://robovations.com/robots/worx-landroid-m-20v-cordless-robotic-lawn-mower/

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Where to next

Three ways to keep going.

For evaluators

Compare with a peer.

See the Worx Landroid M 20V and McCulloch ROB R1000 side by side: autonomy level, Robovations Score, readiness, and price. Classification, not a verdict.

See the full comparison

Or compare with Greenworks Optimow 15, Stihl iMow 7, Flymo EasiLife Go 200.

For browsers

See every Level II.

Every robot we’ve classified at assisted autonomy. Sorted by readiness, score, and price. Filter by category, manufacturer, or release date.

Browse the database

Updated weekly with new entries and reclassifications.

Worx Landroid M 20V

Will the Worx Landroid M 20V work on your yard?

The full spec sheet.

Living with it.

How the assessment has moved.

How Worx Landroid M 20V compares.

Robot mowers: does mulch quality or coverage matter more?

Quiet robot mowers for neighborhood-friendly scheduling: noise levels and timing

Robot mowers for quarter-to-half-acre yards: where setup effort matches yard scale

What people actually ask.