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Robot Autonomy, Classified
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ROBOVATIONS/CLASSIFICATION RECORD/ROBOT VACUUMSRELEASED 2019.09REASSESSED 2026.06.11
iRobot

iRobot Roomba s9+

A decade into vSLAM-based navigation, the s9+ is the refined take: D-shape corners where prior Roombas missed, dense mapping in complex homes, and a dock that honestly reduces daily friction. The premium is real and the cleaning is documented.

iRobot Roomba s9+
FIT CHECK

Will the iRobot Roomba s9+ work in your home?

Describe your home using the controls. Each choice reads the spec sheet for you, flagging where the iRobot Roomba s9+ is built for your space and where it isn’t.

Home size

Primary floors

Mopping needs

You want to…

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

12.3 in12.3 inTOP3.5 in12.3 inSIDEDimensional drawing
Key specificationsManufacturer-published
Footprint
12.3 in dia · 3.5 in tall✓
Weight
8.2 lbs✓
Battery
60 Wh · Li-ion
Wi-Fi
2.4 GHz only
Voice
Alexa, Google Home
Mapping & navigation

vSLAM camera + persistent mapping + obstacle avoidance

Where it lands · ranked across 184 robot vacuumsThis robotMedianTypical range
Suction2,200Pa
600 Pa36,000 Pa
Bottom of range
Runtime120min
40 min360 min
Near median
Price$949
$120$2,599
Near median
Noise70dB
43 dB80 dB
Above median
Charge time180min
90 min420 min
Near median
Weight8.2lbs
1.5 lbs36.4 lbs
Near median

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

Official referencesManufacturer support
OWNERSHIP

Living with it.

Seven years of firmware updates stabilized navigation; dock remains the known weak point.

Owner reports across 2019-2026 document consistent vSLAM performance with occasional dock bag-seal failures requiring manual cleaning. No major recall; firmware iterations addressed corner-reaching edge cases.

Owner effort~45 minhands-on per month
Consumables$130replaceable parts / yr
Reliability trend Stableowner-reported arc
What goes wrong · 3 documented · 0 self-recover
Occasional
Dock bag seal failuresDust escapes into dock cavity
Owner fixManual dock wipe-down; bag reseat or replacement
Occasional
Brush tangles on carpet transitionsReduced cleaning, stuck motor
Owner fixManual brush removal, typically every 2-3 weeks
Rare
Mapping loss after WiFi disruptionRobot returns to dock without resuming
Owner fixWiFi reconnection via app or factory reset
Upkeep routine
Weekly52×/yr
Empty dust bin before each run to maintain suction.
Monthly12×/yr
Check dock bag seal; empty bag when full or monthly, whichever comes first (~$8-12 per bag). · Wipe dock interior and sensors for dust accumulation.
Yearly1×/yr
Replace main brush (~$40-50) and HEPA filter (~$25-35).
As neededno fixed schedule
Remove main brush and side brush for tangles and hair wraps. · Replace side brush (~$20-30).
Cost over time · past the sticker
PurchaseRunning cost
Year 1
$1,079
Year 3
$1,339
Year 5
$1,599

$949 to buy, then about $130 a year for the replaceable parts below. Over three years that is roughly $390 past the sticker price. Excludes electricity and any repairs.

What you replace
  • Dust bagMonthly$8–12
  • Side brushEvery 6-8 months$20–30
  • Main brushAnnually$40–50

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

Safety notes

CautionDock electrical hazard if wet: Clean Base uses standard outlet power; water spillage risks shock. Keep area dry.

NoteBrush pinch point during manual cleaning: Main brush motor runs if robot power is on; disconnect dock power before servicing.

RECORD

How the assessment has moved.

Every announcement, release and reassessment behind the current classification.

Coming soon
Just launched
Active updates
Settled
Discontinued
  1. Feb 2024 · NewsAmazon acquisition collapse leaves iRobot s9+ line in restructuring
  2. Sep 2024 · Assessment changeiRobot s9+ street price drops to $599 as lineup repositioned post-restructuring
  3. Jul 2026 · AssessmentRobovations Score recorded at 73 of 100
  4. Jul 2026 · AssessmentRobovations Score revised 73 → 76
Common questions

What people actually ask.

6 answered
OperationDoes the s9+ vacuum and mop, or vacuum only?
Vacuum only. iRobot sells the Roomba Combo j9+ (a j-series variant with a retractable mopping arm) as the dual-function model. The s9+ does not mop.
OperationWhat is the difference between the s9+ (with dock) and the plain s9 (without dock)?
The s9+ includes the Clean Base auto-empty dock; the standalone s9 requires manual bin emptying after every 2-3 runs. The dock adds ~$200-250 to the price.
OperationCan the s9+ handle multiple floors if I tell it which floor the dock is on?
Persistent mapping stores up to 10 unique floor maps. The dock must physically stay on one floor; the robot can navigate to other floors via stairs but cannot dock autonomously outside its home-floor zone.
CompatibilityDoes the s9+ work with Alexa, Google Home, or other smart home platforms?
Yes, basic commands (start, stop, dock, room cleaning) work via Alexa and Google Assistant. Full control (scheduling, map editing, no-go zones) requires the iRobot app.
OwnershipHow often do the filters and brush need replacement, and how much do they cost?
Side brush replacement every 6-8 months (~$20-30); main brush every 12 months (~$40-50); HEPA filter annually (~$25-35). Dock bag every 30 days (~$8-12 per bag). Owners report ~$120-150/year in consumables.
OperationWill the s9+ navigate around new obstacles, or does it need the room remapped after I add furniture?
vSLAM dynamic obstacle avoidance handles small items (shoes, small toys). Permanent layout changes (new shelving, doorway blockages) may require manual map refresh via the app if the robot gets stuck repeatedly.

Analysis

iRobot Roomba s9+ in the analysis archive.

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Availability

Where it's sold

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

Amazon See current listings
Cite / Embed

Reference the iRobot Roomba s9+ classification.

Embed the Autonomy Ladder™ mark or copy the citation. The mark links back to this assessment and updates if the classification changes.

RobovationsAutonomy Ladder™Level IIIConditional AutonomyIndependent classification
Citation
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By RobovationsUpdated: Jun 19, 2026
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