Robomow RS622IIAssistedCompare

Released 2014Reassessed 2026.08.06Compare

Robomow RS622

Name: Robomow RS622
Brand: Robomow

The RS622 is a wire-bounded mower for mid-size residential yards, rated to about a half acre and to 20° slopes. App, web and Alexa control and a rain sensor handle the scheduling side; the trade-off is the buried boundary itself and the absence of a spatial map or a wireless boundary option.

List price

$2,169

Released 2014Reassessed 2026.08.06

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

Robomow RS622 runs preset routines on its own, and the owner is its recovery system.

Navigation and control

Perimeter-wire boundary; pseudo-random scanning coverage with dedicated edge mode
Why this level
- The RS622 mows unattended inside a buried perimeter wire, covering the area with a pseudo-random scanning pattern plus a dedicated edge pass rather than a mapped route.
- An onboard rain sensor sends it back to base and resumes afterward, and Bluetooth, the Robomow app, the MyRoboMow web app and Alexa handle scheduling and start/stop remotely.
- Boundary installation by hand, obstacle handling by contact, and the absence of any spatial map keep it at Level II (Assisted Autonomy).
- The machine executes a routine, it does not model its environment.
Autonomy dimension 38 / 100 · 3 independent sources reviewed, 2 from the maker
IManual AutomationOne action on command; no independent operation.

How we assign a level →

Behind the classification

Sources on file.

Provisional3 independent sources reviewed, 2 from the maker

Two to four independent sources reviewed. Gaps remain across source types. The word says how much we read. It is not a grade.

Independent sources reviewed3

Monitoring record3 sources

Sources behind the tracker entries following this robot.

From the maker, reviewed2

Specification sources1 source

Pages the published specifications were read from.

homedepot.comhomedepot.com

Monitoring record1 source

Sources behind the tracker entries following this robot.

Robomow (Company History Page)Robomow (Company History Page)

Our own recordNot counted

Longitudinal signal2 sources

Robovations dated log for this robot: 3 tracked entries spanning ~122 months.

Also monitored, nothing listed yet

Manufacturer documentation

Robomow RS-series product documentation and operating manual; archived specifications from manufacturer and dealer networks.

Owner reports

Residential owner forums and multi-year performance reviews documenting wire maintenance, blade wear, and terrain handling.

How we evaluate evidence →

Human Readiness

Discontinued.

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

DiscontinuedThis robot

Robomow RS622 is discontinued. Remaining listings are old stock at uncertain prices, which no buying-today tier describes.

Listings under Availability are shown for reference, not as a purchase path.

On the record

Released January 2014; since discontinued
No current new-stock listing confirmed
3 independent sources reviewed, 2 from the maker

The scale, for reference

Ready NowAssessed, with a clean record on file. A successor may be shipping; the page says so when it is.
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

68of 100

CapableAt or above 55% of the 456 robots we scoreand 44% of the 112 scored robot lawn mowers

DeficientLimitedCapableStrongExemplary

Measured on 8 of the 9 inputs14% not counted

Our assessment did not establish an independent source for software stability on this machine, so that input is 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 rate85+2.4
Task completion85+2.1
Consumables91+1.8

Held back by

Support longevity38−2.4
Routine maintenance53−1.8
Coverage and navigation55−1.7

Capability40% of the score70What it does without you.

Task completion16% of the score85

Evidence

PCMag's hands-on review: 'When it was finished, the Robomow returned to its base for charging and began another successful cycle on Thursday. It followed this schedule for several weeks without incident,' with 'the grass was cut evenly and coverage was complete' and mulching removing any bagging step; an Amazon customer who had owned it for two seasons writes it 'has done a good job of mowing my 1/2 acre rural lawn, which contains some steep grades and uneven terrain.' After installation the only human step reported was occasional wire fine-tuning.

Coverage and navigation10% of the score55

Evidence

PCMag found 'the Robomow did an excellent job of cutting the grass and trimming the edges, although I had to readjust the perimeter wire a few times to fine-tune edge coverage,' and that a 1,950 square foot lawn takes about an hour, roughly twice a gas mower; Digital Trends notes the mower 'doesn't do well with hard 90-degree turns, so when taking on corners, the user must lay down the wire using two 45-degree lengths.' Coverage completes across repeated runs but the work area is buried wire rather than a learned map, and the stored 30 was penalizing pattern mowing that is class-normal for a mower.

Edge-case recovery10% of the score60

Evidence

robotic-lawn-mowers.wibly.info describes the app remote as 'incredibly useful for getting the mower moving after it gets stuck if you don't want to go outside and haul all 45 lbs of mower out of where ever it has marooned itself,' adding that once the boundary wire is refined stranding 'should be a very rare occurrence but can still happen from time to time if the mower, for example, slips of wet grass'; PCMag watched it postpone one run for rain and pick the schedule back up the next day by itself. Rescues are rare and usually remote, but it does not free itself.

Operating envelope4% of the score68

Evidence

The Amazon owner review reports good results on a half-acre rural lawn 'which contains some steep grades and uneven terrain'; Digital Trends concludes 'The Robomow makes the most sense for people with sizeable, yet simple lawn layouts,' and wibly notes it holds off until wet grass dries and can slip on it. It holds across varied terrain and slope but degrades on complex layouts and wet ground.

Dependability40% of the score67Whether it keeps doing it.

Field failure rate16% of the score85

Evidence

Twelve years on the market, a long field record, with multi-year owner reporting describing proven wire-guided reliability and no recall or systemic defect on the line. Held below the mature-record anchors because there is nothing inspectable: manufacturer docs and owner reports are both listed with no links behind them, and the record carries no failure modes section. Simplicity earns nothing here, since fewer subsystems is not a reliability achievement.

Software stabilitynot countedno source verified71

Evidence

A 2014 design on a series the manufacturer retired in favor of the RK and RKS lines, so the ordinary-case assumption that updates ship does not hold, and no firmware source appears anywhere on the record. The specific risk is larger than a stalled changelog: this machine's remote control runs through the MyRoboMow web app and an Alexa skill, both vendor-hosted services for a product the vendor has moved on from, and a service withdrawal removes capability owners currently have.

Support longevity10% of the score38

Evidence

A retired series, which the anchor treats as low however good the machine is, and the record states long-term parts support for this generation is not verified. Two things keep it above the floor: new-in-box stock is still listed by US retailers, so a buyer has a channel today, and MTD acquired the parent in 2017 and continues to operate the brand, so blade sets at a documented $35 to $45 and commodity wire are not orphaned. The web portal and Alexa dependency is the part with no assurance at all.

Ownership burden20% of the score68What it asks of you.

Routine maintenance12% of the score53

Evidence

Lighter than a wired machine usually asks. Weekly inspection of wheel wells and cutting deck for compacted clippings with a visual wire check, monthly undercarriage cleaning and blade wear inspection, seasonal blade set replacement with a full perimeter wire inspection, and an annual base cleaning and battery health check. No after-every-use step, and the weekly wire task is a look rather than a continuity test.

Consumables8% of the score91

Evidence

A good interval: blade sets last 12 to 18 months of weekly mowing and the dual-blade deck changes both at once for $35 to $45, which is roughly $30 a year on a $2,169 machine. Wire and staples are commodity items that recur only on damage. No subscription and no correction service. The reservation is availability rather than price, since the series is retired and the parts channel is unverified.

middle half of the databaseits medianthis robot

Reported, not scoredneither measures how well the robot works

Five-year cost$2,680

Upper-middle for robot mowers and poor value in context, which the record says plainly: new listings have run above $2,000 for a retired series, higher than several current wire-free machines. $2,169 at MSRP, roughly $160 of blade sets across five years at the 12 to 18 month interval and the record's own $35 to $45 a set, an allowance for wire and staples beyond the supplied kit, and one replacement battery pack. No subscription. The soft assumption is parts availability rather than parts price: the RS series is retired and the record states long-term support for this generation is not verified.

Data postureCloud-optional

Full core function without an account; cloud adds convenience.

What leaves the homeNot documented

Read the full methodology →

FIT CHECK

Will the Robomow RS622 work on your yard?

Describe your yard using the controls. Each choice reads the spec sheet for you, flagging where the Robomow RS622 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.

OWNERSHIP

Living with it.

Established wire-guided operation with proven field performance; perimeter-wire integrity remains the critical failure point.

Stableowner-reported arc

The record so far

Multi-year owner reports show consistent performance within documented boundaries. Main issues are perimeter-wire breakage (from lawn equipment or weather damage) and gradual blade dulling reducing cutting efficiency.

What goes wrong4 documented · 1 self-recover

Common

Blade dulling and uneven cuttingRagged grass edges; increased power consumption; slower mowing speed

Owner fixSeasonal blade replacement; aftermarket sets available for $35–45

Occasional

Perimeter-wire breakage and damageRobot cannot exit start point or reverts to random movement until boundary is restored

Owner fixLocate and repair or replace damaged wire segment; typical 30-minute repair

Occasional

Charging-base electrical corrosionIntermittent charging or failure to dock autonomously

Owner fixClean charging contacts with contact cleaner; dry storage prevents recurrence

Rare

Automatic shutdown mid-cycle; requires manual restart after cooldown

Self-recoversManual restart once motor cools; reduce mowing frequency on very dense grass

Upkeep routine

Weekly52×/yr

Inspect wheel wells and cutting deck for compacted clippings; visually inspect for debris or damage.

Monthly12×/yr

Clean undercarriage and check for wear, notching or impact damage; note any dulling for the next replacement.

Seasonal4×/yr

Blade set replacement ($35–45 per set), replaced rather than sharpened; full perimeter- inspection and repair as needed.

Yearly1×/yr

Charging-base cleaning; battery health check before extended storage, with the lithium pack stored charged rather than run down.

Cost over timeabout $180 past the sticker over three years

PurchaseRunning cost

Year 1

$2,229

Year 3

$2,349

Year 5

$2,469

$2,169 to buy, then about $60 a year for the replaceable parts below. Over three years that is roughly $180 past the sticker price. Excludes electricity and any repairs.

What you replace

Seasonally$35–45

Replacement cadence from the maintenance schedule; prices shown where the source documents them. Some links earn Robovations a commission. It does not change any classification. All parts at Robomow

Step-by-step fixes

Blades Not Spinning or Not Cutting?Boundary Wire Break Cutting Uneven or Scalping the Lawn?All robot mower guides

Safety notes1 caution · 1 note

CautionRotating blade exposure during maintenanceAlways power down and ensure motor has stopped before any manual adjustment or repositioning.
Perimeter-wire contact risk during yard workKeep wire visible or safely buried to prevent accidental trips or contact with garden equipment.

SPECIFICATION

The full spec sheet.

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

Dimensional drawing

Key specificationsManufacturer-publishedSources: Manufacturer support Manufacturer site

FootprintThe width, depth and height of the robot itself, without its dock.: 26 × 22 in, 12 in tall
WeightThe robot alone, without its dock, as the maker states it.: 45 lbs
VoiceThe assistants the maker's app links to; the robot itself does not listen.: Alexa
Cutting width: 22 in•
Cutting height range: 0.8-3.1 in•
Max area: 21,800 sq ft•
Max slope: 35%•
Blade system: Dual blades•
Boundary method: Buried perimeter wire

Where it lands · position among 134 robot lawn mowersThis robotMedianTypical range

RuntimeThe maker's stated running time on one charge, at a standard setting.55min

30 min240 min

Below median

PriceThe maker's list price, not a price found in a shop.$2,169

$549$5,999

Near median

Charge timeTime from empty to full on the dock, as the maker states it.100min

30 min300 min

Near median

WeightThe robot alone, without its dock, as the maker states it.45lbs

13 lbs88.2 lbs

Above median

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

Official referencesManufacturer support Manufacturer site

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 · AssessmentRobovations Score rescored under v4.2: 61 → 68
Jul 2026 · AssessmentRobovations Score recorded at 61 of 100
Mar 2024 · NewsRobomow RS-series parts supply narrows as brand exits consumer market
Jul 2017 · NewsMTD Products completes merger with Robomow maker F. Robotics
Mar 2014 · ReleaseRobomow adds smartphone app and Bluetooth control to RS-series mowers

Questions

What people actually ask.

4 answered

OperationDoes the Robomow RS622 require burial of the perimeter wire?

No. Surface installation with lawn staples or grooved channels is standard. Burial is optional and generally unnecessary for residential yards.

OwnershipWhat is the blade replacement interval and cost for the RS622?

Blades typically need replacement every 12 to 18 months of weekly mowing, and the RS622’s dual-blade deck changes both at once. Replacement sets run about $35 to $45. Blades are replaced rather than sharpened: grinding removes the coating and leaves an unbalanced blade on a machine that runs unattended.

OperationHow much yard area does the RS622 cover per charge?

A full charge gives roughly 50 to 70 minutes of mowing at a 22 inch cut width, which is a fraction of the machine’s rating rather than the whole lawn. Robomow’s half-acre figure, about 23,000 sq ft, is a weekly capacity reached across repeated charge cycles. Denser turf shortens each run.

OperationCan the RS622 be operated without a perimeter wire?

No. The RS622 exclusively uses perimeter-wire guidance. Wireless or GPS boundaries are not available on this model.

Availability

Where it's sold

Some links earn Robovations a commission. It does not change any classification. Affiliate disclosure.

We are no longer finding a current new-stock listing for this robot. Remaining offers may be used, refurbished, or third-party — confirm the condition and price on the retailer’s page before buying.

Amazon See current listings

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Reference the Robomow RS622 classification.

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Citation

Robovations. "Robomow RS622: Autonomy Level II (Assisted Autonomy)." Autonomy Ladder™, assessed August 2026. https://robovations.com/robots/robomow-rs622/

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Where to next

Three ways to keep going.

For evaluators

Compare with a peer.

See the Robomow RS622 and Robomow RT300 side by side: autonomy level, Robovations Score, readiness, and price. Classification, not a verdict.

See the full comparison

Or compare with Husqvarna Automower 305, Stihl iMow 6 EVO, Yard Force Compact 400Ri.

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 every Level II robot

Updated weekly with new entries and reclassifications.

Robomow RS622

Will the Robomow RS622 work on your yard?

Living with it.

The full spec sheet.

How the assessment has moved.

What people actually ask.

Other robot lawn mowers we have classified.

Stihl iMow 6 EVO

Worx Landroid S 20V

Husqvarna Automower 115H

Husqvarna Automower 305

Where it's sold

Reference the Robomow RS622 classification.

Three ways to keep going.

Get the next reassessment.

Compare with a peer.

See every Level II.