RELEASED 2020REASSESSED 2026.08.07

Greenworks

Greenworks Optimow 15

Name: Greenworks Optimow 15
Brand: Greenworks

Wire-boundary navigation with randomized cutting, 35% slope tolerance, and GSM-app scheduling. Autonomy is real within the perimeter the owner installs. No GPS, no mapping, no wire-free operation.

Superseded byGreenworks AiMowbot C20Z

PriceNot listedNot tracked yet

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 AutonomyHandles new obstacles and re-plans in real time; rare in consumer products.
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

Greenworks Optimow 15 runs preset routines on its own, and the owner is its recovery system.

Navigation and control
Perimeter-wire boundary + base station; randomized cutting pattern; automatic dock return; no GPS, no camera, no mapping
Why this level
- Perimeter-wire boundary with randomized cutting and automatic dock return matches Level II (Assisted Autonomy).
- The mower executes cutting sessions within a human-defined boundary but cannot plan routes, recognize its environment, or adapt to obstacles beyond collision-sensor stop-and-redirect behavior.
- No GPS, no camera, no map.
- Route selection and zone definition remain the owner's responsibility at setup.
Autonomy dimension 48 / 100 · Assessment under way
IManual AutomationOne action on command; no independent operation.

How we assign a level →

Human Readiness

Not rated yet.

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

Not rated yetThis robot

Greenworks Optimow 15 has not been rated yet.

Our assessment has not established enough independent evidence to publish a rating. The Evidence and Score panels above track exactly what is missing; the rating lands the day the assessment does.

On the record

Shipping since January 2020 · 79 months on the market
Succeeded by Greenworks AiMowbot C20Z
Assessment under way

The scale, for reference

Ready NowOn sale past the first-90-day window, assessed, with no documented issues and no announced successor.
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

Why the score is withheld

Not scored

The Robovations Score is withheld on this record. It is not a low score, and it is not an oversight.

Why

Our assessment did not establish an independent source for 3 of the nine inputs: task completion, operating envelope, software stability.

The full assessment note

Those inputs carry 34% of the composite between them, so a number published here would be reporting the state of the record rather than the state of the machine. The unevidenced anchor is a reference point for one input, not a foundation for a whole score.

What would change it

An independent account of its task completion that we have verified.
An independent account of its operating envelope that we have verified.
An independent account of its software stability that we have verified.

Reported, not scoredneither measures how well the robot works

Five-year cost$1,580

Lower-middle for robot mowers. About 900 dollars converting the 799.99 euro Greenworks EU list, plus roughly 300 dollars of blade sets over five years at the three to six month interval, about 80 dollars of extra boundary wire and staples beyond the 100 m in the box since a lawn near the 1,500 square meter rating will need more, and one replacement battery pack. It also carries an assumed 150 dollars of cellular renewal across years three to five: app scheduling runs over GSM, the sibling Optimow 50H ships a two year prepaid SIM with no published renewal price, and this record states no term at all.

Data postureCloud-linked

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

What leaves the homeNot documented

Read the full methodology →

FIT CHECK

Will the Greenworks Optimow 15 work on your yard?

Describe your yard using the controls. Each choice reads the spec sheet for you, flagging where the Greenworks Optimow 15 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.

Manufacturer-published figures, measured against every robot lawn mower we track.

Dimensional drawing

Key specificationsManufacturer-published

Footprint: 19.69 × 24.41 in · 10.24 in tall
Weight: 24.26 lbs

Where it lands · ranked across 100 robot lawn mowersThis robotMedianTypical range

Runtime70min

30 min240 min

Near median

Noise50dB

50 dB82 dB

Bottom of range

Charge time70min

30 min300 min

Near median

Weight24.26lbs

11.9 lbs134 lbs

Near median

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

Official referencesManufacturer site

OWNERSHIP

Living with it.

Established wire-guided platform; blade wear and wire breaks are the primary failure patterns.

Perimeter-wire mowers in this class show consistent run reliability once installed correctly. Owner reports across the Optimow series identify boundary-wire breaks from lawn-maintenance equipment as the leading disruption source, followed by blade-disc wear. Dock-return miss events are occasional rather than common.

Owner effort~30 minhands-on per month

Consumables$40replaceable parts / yr

Reliability trend Stableowner-reported arc

What goes wrong · 4 documented · 0 self-recover

Occasional

Boundary wire breakMower halts, app error displayed

Owner fixLocate break with wire detector; splice and re-stake

Occasional

Blade disc wearReduced cut quality over time

Owner fixReplace blade disc; interval typically seasonal

Occasional

Dock return missMower stalls outside dock, needs repositioning

Owner fixManually return to dock; check guide-wire alignment near station

Rare

Lift sensor false triggerMower halts mid-session on uneven terrain

Owner fixClear debris from chassis underside; restart session

Step-by-step fixesCutting Uneven or Scalping the Lawn?Not Following Its Schedule or Running at the Wrong TimesWet Grass or RainAll robot mower guides

Upkeep routine

Each useEvery cycle

Visually inspect blade disc for damage or grass clogging.

Weekly52×/yr

Clear accumulated clippings from the chassis underside and blade housing.

Monthly12×/yr

Inspect boundary wire and pegs along the full perimeter; re-stake any lifted sections.

Seasonal4×/yr

Replace blade disc or individual blades; standard Greenworks Optimow replacement parts. · Clean charging contacts on dock and mower body; verify boundary wire continuity before mowing season.

Yearly1×/yr

Full perimeter wire inspection; replace degraded sections; charge battery to storage level before winter.

Safety notes

CautionBlade contact during manual lift: Lift sensor halts blades; keep hands clear until blades fully stop before handling.

NotePerimeter wire trip hazard: Surface-staked wire can catch on footwear; burying wire along high-traffic paths reduces this risk.

CautionOperation near children or pets: Collision sensors stop the mower on contact but do not prevent all contact; clear the area during active sessions.

RECORD

How the assessment has moved.

Every announcement, release and reassessment behind the current classification.

Coming soon

Just launched

Active updates

Settled

Discontinued

Aug 2026 · AssessmentReadiness reassessed: Ready Now → Limited Availability
Aug 2026 · AssessmentRecord status: Provisional → Pending
Aug 2026 · AssessmentRobovations Score withheld: too little independent evidence
Aug 2026 · AssessmentRobovations Score revised 62 → 66
Aug 2026 · AssessmentRobovations Score rescored under v4.2: 60 → 62
Aug 2026 · AssessmentRobovations Score rescored under v4.0: 66 → 60
Jul 2026 · AssessmentRobovations Score revised 57 → 66
Jul 2026 · AssessmentRobovations Score recorded at 57 of 100

Common questions

What people actually ask.

6 answered

OperationDoes the Optimow 15 require burying the perimeter wire, or can it be surface-staked?

Manufacturer documentation supports surface staking with the included pegs, though burying the wire reduces strike damage from other lawn equipment and eliminates a trip hazard. Greenworks supplies 100 m of wire with the mower. A lawn approaching the 1,500 m² rating, or one with island loops around beds and trees, will run past that, so measure the full route before starting.

OperationWhat is the Optimow 15's rated slope limit, and does wet grass reduce safe operating range?

Greenworks EU specs rate the Optimow 15 at 35% gradient. Wire-guided mowers in this class carry a general caution for slopes near the rated limit when grass is wet; operating at maximum gradient in wet conditions is not specifically addressed in available documentation.

CompatibilityDoes the Optimow 15 use home Wi-Fi, or does it need a mobile data signal?

The Optimow 15 connects to the Greenworks app via a built-in GSM (cellular) module, not home Wi-Fi. No router configuration is required; the unit communicates directly over cellular, so app control works anywhere with mobile signal.

OwnershipHow long does the Optimow 15 take to recharge, and does it return to dock on its own?

Manufacturer specs list approximately 70 minutes of runtime and 70 minutes of charge time. The mower returns to the dock automatically when battery level drops low or the scheduled session ends.

OperationWhat weather resistance rating does the Optimow 15 carry?

The unit carries an IPX5 rating, meaning protection against low-pressure water jets from any direction. This covers light rain operation; specific rain-sensor hardware should be confirmed against current product documentation.

OperationCan the Optimow 15 handle two separate lawn areas at the same property?

Multi-zone operation is possible using guide wires to direct the mower between connected areas within a single wire boundary. Completely separate, physically disconnected lawn areas require individual boundary loops and base stations, which are not included.

Cite / Embed

Reference the Greenworks Optimow 15 classification.

Embed the Autonomy Ladder™ mark or copy the citation. The mark is served from this record, so a reassessment updates it on your page automatically.

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Citation

Robovations. "Greenworks Optimow 15: Autonomy Level II (Assisted Autonomy)." Autonomy Ladder™, assessed August 2026. https://robovations.com/robots/greenworks-optimow-15/

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Hot-link it. Never download, self-host, or re-upload the image. A saved copy stops updating, and a mark that has stopped updating is a claim we no longer stand behind.
A classification, not an endorsement. It may not appear beside language implying Robovations recommends, rates, or approves the product.

Where to next

Three ways to keep going.

For evaluators

Compare with a peer.

See the Greenworks Optimow 15 and Flymo EasiLife Go 200 side by side: autonomy level, Robovations Score, readiness, and price. Classification, not a verdict.

See the full comparison

Or compare with Stihl iMow 6 EVO, McCulloch ROB R1000, Ambrogio Twenty Elite.

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.

Greenworks Optimow 15

Will the Greenworks Optimow 15 work on your yard?

The full spec sheet.

Living with it.

How the assessment has moved.

What people actually ask.