RELEASED 2024REASSESSED 2026.08.07Compare

Gardena

Gardena Sileno Life 750

Name: Gardena Sileno Life 750
Brand: Gardena

Wire-guided mower relying on boundary infrastructure and GPS planning logic, not obstacle avoidance. Effective for owners comfortable with static perimeter definition; unsuitable for complex terrain.

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

Gardena Sileno Life 750 runs preset routines on its own, and the owner is its recovery system.
What it does on its own
- Operates autonomously on scheduled 7-day timer within wire-defined boundaries and returns to dock when battery low. Cuts a random path inside the wire loop under Gardena's SensorCut system, turning away when its collision sensors register contact with an obstacle. Cuts grass at heights between 20-60mm and mulches the clippings back into the turf. Waterproof design enables operation in light rain.
Why this level
- Containment comes from a buried boundary wire and nothing else.
- There is no positioning system on this model.
- Inside the loop the mower cuts a random path under Gardena's SensorCut system and turns away when its collision sensors register contact, which is reaction rather than planning.
- The schedule is a clock, not a route.
- It mows on its schedule inside the wire-bounded area without a person present, and cannot work beyond that boundary.
What holds it at Level II
- Contact-based obstacle handling: The mower turns away after touching an obstacle rather than detecting it in advance, so anything left on the lawn is struck first.
- No positioning system: Containment depends entirely on the boundary wire; there is no GPS or satellite reference and no stored map of the lawn.
- Boundary-wire prerequisite: Cannot operate without an installed perimeter; no learning of yard edges via vision.
- Terrain limits: Steep sections and rough ground destabilize wire-following, and ground along the boundary wire tolerates less slope than open lawn does.
Autonomy dimension 64 / 100 · 5 sources reviewed
IManual AutomationOne action on command; no independent operation.

How we assign a level →

Behind the classification

Sources we reviewed.

Pending5 sources reviewed

Evidence is still being collected for this product.

Sources reviewed

Manufacturer documentation3 sourcesReviewed

Gardena Sileno Life 750 specification sheet, operation manual, and app documentation.

Owner reports1 sourceOngoing

Owner forums, product review aggregates, and longitudinal feedback documenting boundary-wire durability, dock return reliability, seasonal maintenance, and blade-change intervals.

Gardena Sileno Life 750 getting lost on the way back to baseReddit · r/automower

Specification sources2 sourcesReviewed

Pages the published specifications were read from.

Also monitored, nothing listed yet

Press & video reviewsOngoing

Retail marketplace product listings and tech media coverage on autonomous lawn mower operation and wire-guided navigation.

How we evaluate evidence →

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

Gardena Sileno Life 750 is on sale, assessed, and nothing on its record argues for waiting.
How this was derived
- Shipping past the first-90-day ownership window with a published assessment, no documented issues on record, and no announced successor.
Notes on the record
- Shipping with established retailer availability.
- Moderate setup complexity: boundary-wire installation (4–8 hours typical) plus app pairing.
- Ongoing effort: annual wire inspection, monthly blade inspection, seasonal storage.
- Pricing justified by GPS scheduling and multi-season durability.
On the record
- Shipping since January 2024 · 33 months on the market
- Retail listings on file: Amazon
- No current new-stock listing confirmed
- No successor announced
- 5 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

70of 100

StrongAt or above 67% of the 447 robots we scoreand 61% of the 111 scored robot lawn mowers

DeficientLimitedCapableStrongExemplary

Measured on 8 of the 9 inputs10% not counted

Our assessment did not establish an independent source for edge-case recovery 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

Support longevity100+3.8
Field failure rate81+1.8
Consumables89+1.6

Held back by

Coverage and navigation50−2.2
Routine maintenance56−1.4
Software stability55−1.4

Capability40% of the score65What it does without you.

Task completion16% of the score75

Evidence

It runs a 7-day schedule inside the wire, returns to dock when the battery drops and recharges without prompting, and a waterproof chassis means light rain rarely stops a session. The self-service half is where it stumbles: owner forums report dock alignment failures at roughly monthly frequency and a documented tendency to wander or stall on the return leg, both of which leave the machine uncharged and the next session unrun until a person intervenes.

Coverage and navigation10% of the score50

Evidence

Easy Lawn Mowing's Sileno Life 750 review describes the SensorCut system as random navigation whose overlapping passes leave no stripes or lines, with a boundary wire and a guide wire laid at setup, and Trade Tested's own answer to a buyer asking to run it wireless is "You need the wire for it to operate". A Trade Tested owner of three weeks reports "Cuts well. goes home well", so the wire-bounded area is covered, but by a pattern re-established every run with no map retained.

Edge-case recoverynot countedno source verified38

Evidence

Three of the five sources are hardware faults rather than recovery behavior: wheel bearings with significant lateral slop, a dead play and start button, and a defective boundary cable. The two roboter-forum results carry the identical related-thread sidebar text rather than thread content, so they are one page element and not two reports. The remaining thread, dissatisfaction with constant stops on a SILENO Life, quantifies only the owner's previous mower at 1 to 2 manual restarts per quarter and is cut off before it gives a figure for this one. Excluded from the composite rather than scored.

Operating envelope4% of the score62

Evidence

Robot Maniak's Sileno Life 750 review reports it "seems to struggle a bit when tested on thicker species of grass like Buffalo and St. Augustine" and "isn't the best performer on larger slopes and uneven terrain", calling it best for lawns that are relatively flat and without many obstacles or mounds, while the waterproofed shell lets it keep mowing in the rain. Two documented conditions degrade it, so it sits below the one-condition anchor.

Dependability40% of the score77Whether it keeps doing it.

Field failure rate16% of the score81

Evidence

No recall, a wire-following core the Husqvarna Group has shipped for over a decade, and documented battery retention above 85 percent after three years. Two recurring modes are documented on this specific model: dock alignment failures at roughly monthly frequency in owner forums, and stalls on the return leg reported independently. Neither is universal and both are recoverable, on two and a half seasons of field record.

Software stability14% of the score55

Evidence

The roboter-forum.com thread "Smart Sileno Life Update…" shows an update channel that exists and is announced in the app, but an owner following Gardena's PC update tool and USB cable procedure got "Geraet nicht erkannt" and could not install the update at all, while the thread starter reports new unexplained lifted-mower and short battery alarms plus parking at 60 percent inside the set mowing window in the third season. The thread covers the smart Sileno Life line rather than the 750 SKU alone, and no published release note resolves either report.

Support longevity10% of the score100

Evidence

The Gardena parts program the framework names, with a dealer and service network and commodity blade sets on a current model. Two concrete longevity signals beyond that: boundary wire from older Gardena mowers is reusable because the 1.6 mm spec carried forward across generations, and the record documents 7 to 10 year service lives on the line. No published support term in years is what keeps it off the top.

Ownership burden20% of the score69What it asks of you.

Routine maintenance12% of the score56

Evidence

The lightest blade interval of the three Gardena machines here at three to six months, and weekly work is a dock clean and a base inspection. Against it, obstacles are found by contact so loose items must be cleared before each run, owners report dock realignment at roughly monthly frequency, and the annual wire audit carries an open-ended repair line the record puts as high as 500 euros on a large perimeter.

Consumables8% of the score89

Evidence

Flip-and-replace razor blades at 15 to 25 euros a set on a three to six month interval, roughly 50 euros a year, which is the anchor's low-burden case almost exactly. The open line is boundary wire repair at 20 to 200 euros an incident, which is not strictly a consumable but recurs on any wire machine and is the item most likely to surprise an owner.

middle half of the databaseits medianthis robot

Reported, not scoredneither measures how well the robot works

Five-year cost$1,764

Middle for robot mowers. $1,199 at purchase plus roughly $120 for boundary wire and pegs, which this record treats as a separate DIY cost rather than an in-box kit, unlike the Sileno City record. Around $275 of blades across five years, an allowance for wire repair incidents, and one battery pack, though documented 85 percent retention after three years suggests it may not be needed. No subscription: the smart Gateway that would add away-from-home control is a separate product and is excluded.

Data postureLocal

Core function needs no account and no network.

What leaves the homeDocumented

The Sileno Life 750 connects to a phone over Bluetooth at close range rather than over the internet, so schedule and settings pass directly between the app and the mower. This model carries no satellite positioning, so there are no lawn coordinates to transmit. Cloud connectivity and away-from-home control require the separately sold smart Gateway, which is not part of this product; without it, no documented mowing data leaves the garden.

On-device processingYes

Read the full methodology →

FIT CHECK

Will the Gardena Sileno Life 750 work on your yard?

Describe your yard using the controls. Each choice reads the spec sheet for you, flagging where the Gardena Sileno Life 750 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.

Sileno line proven since 2015; Life 750 adds GPS but retains durable wire-following core.

Stableowner-reported arc

The record so far

Firmware patches addressed early dock-detection issues; occasional GPS drift recovers within 30 seconds. Wire-following core demonstrates durability across multiple seasons. No major recalls documented.

What goes wrongnot yet documented independently

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

Upkeep routine

Weekly52×/yr

Dock cleaning and mower base inspection for grass clippings and debris buildup.

Monthly12×/yr

Blade inspection for dulling; jagged grass edges indicate wear requiring replacement.

Seasonal4×/yr

Replace the as a set (typically €15-25). They are flip-and-replace razors rather than sharpenable blades; grinding an edge back removes the coating and leaves a weakened blade spinning on an unattended machine.

Spring startup (full charge, app pairing verification, dock contact cleaning); autumn storage with the mower cleaned, the battery charged rather than left flat, and the dock brought indoors if freezing is expected.

Yearly1×/yr

Boundary inspection for breaks and corrosion; re-splicing or perimeter repair as needed (€0-500+ depending on property size and condition).

Cost over timeabout $240 past the sticker over three years

PurchaseRunning cost

Year 1

$1,279

Year 3

$1,439

Year 5

$1,599

$1,199 to buy, then about $80 a year for the replaceable parts below. Over three years that is roughly $240 past the sticker price. Excludes electricity and any repairs.

What you replace

Every 3-6 months

Replacement cadence from the maintenance schedule; prices shown where the source documents them. Part links may earn a commission and do not influence the classification. All parts at Gardena

Safety notes1 caution · 2 notes

CautionSpinning blades not retractablePinch hazard if fingers enter housing; supervision required with toddlers.
Recommend burying wire or covering with turf-safe stakes.
Lightning risk outdoor electronicsNot suitable for heavy thunderstorms or high-voltage weather.

SPECIFICATION

The full spec sheet.

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

Dimensional drawing

Key specificationsManufacturer-published

FootprintThe width, depth and height of the robot itself, without its dock.: 15.4 × 22.8 in · 9.1 in tall✓
WeightThe robot alone, without its dock, as the maker states it.: 16.1 lbs
BatteryStored energy in watt-hours; a larger pack runs longer, not harder.: 42 Wh · Li-ion
Cutting width: 8.7 in•
Cutting height range: 0.8-2 in•
Max area: 8073 sq ft•
Max slope: 35%•
Boundary method: Buried boundary wire
Blade system: Flip-and-replace razor blades

Where it lands · ranked across 133 robot lawn mowersThis robotMedianTypical range

RuntimeThe maker's stated running time on one charge, at a standard setting.65min

30 min240 min

Below median

PriceThe maker's list price, not a price found in a shop.$1,199

$549$5,999

Below median

NoiseLoudness at the maker's stated distance, in decibels; ten more decibels reads as about twice as loud.57dB

50 dB75 dB

Below median

Charge timeTime from empty to full on the dock, as the maker states it.60min

30 min300 min

Near median

WeightThe robot alone, without its dock, as the maker states it.16.1lbs

13 lbs88.2 lbs

Bottom of range

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

Official referencesProduct page

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: Verified → Pending
Aug 2026 · AssessmentRobovations Score rescored under v4.2: 66 → 70
Aug 2026 · AssessmentAutonomy Ladder reclassified III → II
Jul 2026 · AssessmentRobovations Score recorded at 66 of 100
Sep 2024 · UpdateFirmware patch resolves dock alignment issues
Jun 2021 · ReleaseLaunches commercially with GPS scheduling

Common questions

What people actually ask.

7 answered

OperationDoes the Sileno Life 750 mow in a planned pattern?

No. Gardena’s SensorCut system drives it in a random path inside the boundary wire, and the random path is the deliberate mechanism: it prevents striping and evens out coverage across repeated runs. The schedule sets when the mower cuts, not where. Consistency comes from cutting often rather than from route planning.

OperationCan I reuse boundary wire from an older Gardena mower?

Yes, if the existing wire is in good condition. Gardena specifications accept 1.6mm wire diameter. Inspect for breaks and test continuity before reuse; manufacturer recommends annual inspection regardless.

OperationWhat happens if the mower hits an obstacle mid-lawn?

It turns away. Collision sensors register the contact, the mower reverses, changes heading and carries on, which is how it deals with trees, furniture legs and anything else standing in the lawn. It does not detect obstacles before touching them, so fragile items and anything small enough to be run over should be cleared first. The app can stop it, but only from within Bluetooth range.

OperationCan the boundary wire be replaced with satellite positioning?

Not on this model. The Sileno Life 750 has no GPS or satellite receiver, and the buried wire is the only thing defining the working area. Wire-free operation exists elsewhere in Gardena’s range on models built around satellite positioning; those are separate products, not a setting on this one.

OperationHow often do owners report boundary-wire splicing failures?

Owner forums document occasional splice failures, typically from poor repair technique or corrosion. Well-executed splices (insulated connectors, buried installation) last 3-5 seasons; exposed splices fail faster.

OperationDoes this mower work in heavy rain or wet grass?

Waterproof chassis enables light-rain operation. Heavy thunderstorms pose lightning risk for outdoor electronics. Wet grass clumps and mulches less cleanly, which shows in cut quality rather than in whether the mower will run.

OwnershipWhat is the total cost of ownership including wire installation and annual maintenance?

Initial wire installation: €50-300 depending on perimeter length (DIY vs. professional). Annual blade replacement (€30-60), seasonal maintenance labor (minimal), wire repair as needed (€20-200 per incident). Multi-season longevity (7-10 years documented) spreads costs.

Availability

Where it's sold

We may earn commission from qualifying purchases. This does not influence classification.

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

Cite & Embed

Reference the Gardena Sileno Life 750 classification.

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Citation

Robovations. "Gardena Sileno Life 750: Autonomy Level II (Assisted Autonomy)." Autonomy Ladder™, assessed August 2026. https://robovations.com/robots/gardena-sileno-life-750/

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Where to next

Three ways to keep going.

For evaluators

Compare with a peer.

See the Gardena Sileno Life 750 and Greenworks Optimow 15 side by side: autonomy level, Robovations Score, readiness, and price. Classification, not a verdict.

See the full comparison

Or compare with Stihl iMow 7, Flymo EasiLife Go 200, Goalker H3 Pro.

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.

Gardena Sileno Life 750

Will the Gardena Sileno Life 750 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.

Greenworks Optimow 15

Stihl iMow 7

Flymo EasiLife Go 200

Stihl iMow 6 EVO

Where it's sold

Reference the Gardena Sileno Life 750 classification.

Three ways to keep going.

Get the next reassessment.

Compare with a peer.

See every Level II.