3i S10 UltraIIIConditionalCompare

Released 2024.11Reassessed 2026.08.08Compare

3i S10 Ultra

Name: 3i S10 Ultra
Brand: 3i

The WaterRecycle dock is the distinctive feature, distills mop water, eliminating clean/dirty tank refills. 13,000 Pa suction and extendable mop pads meet category expectations. New manufacturer is the reliability unknown.

List price

$1,299

Selling below list

Released 2024.11Reassessed 2026.08.08

Autonomy Ladder

Why Level III.

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.
To reach Level IVIndependent testing shows it avoids ordinary obstacles before contact, copes without the space being cleared, and frees itself when stuck.
IIIConditional AutonomyThis robot

3i S10 Ultra finishes whole jobs in a space it already knows, and still needs a person at the edges.

Navigation and control

LiDAR + AI obstacle avoidance
Why this level
- LiDAR + AI avoidance reported by manufacturer.
- Navigates multi-room home, creates digital map, schedules cleaning autonomously.
- No teleop fallback documented.
- Classified at Level III, Conditional Autonomy, handles routine environments with known map, occasional navigation failures expected.
Autonomy dimension 78 / 100 · 2 independent sources reviewed, 4 from the maker
IIAssisted AutonomyRuns preset routines; stalls at anything new.
IManual AutomationOne action on command; no independent operation.

How we assign a level →

Behind the classification

Sources on file.

Provisional2 independent sources reviewed, 4 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 reviewed2

Monitoring record2 sources

Sources behind the tracker entries following this robot.

From the maker, reviewed4

Manufacturer documentation1 source

Official product page, spec sheet, dock manual cover core features and consumable cadence.

3i S10 Ultra product page3i

Specification sources3 sources

Pages the published specifications were read from.

Also monitored, nothing listed yet

Press & video reviews

Early launch coverage from tech outlets documenting the WaterRecycle dock innovation and initial performance.

Owner reports

Sparse early-user feedback from Reddit, Facebook owner groups; limited longitudinal data given Jan 2025 release.

Longitudinal signal

Firmware update cadence and dock reliability arc will be tracked over 6+ months to refine reliability scoring.

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

3i S10 Ultra 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
- Independent reviews are positive on cleaning performance and the water-recycling dock has held up over weeks of testing with no documented failures.
- The doubt is brand depth rather than defect: 3i is a recent entrant without the multi-year support and failure-rate history longer-established brands carry.
On the record
- Shipping since November 2024 · 24 months on the market
- Retail listings on file: Amazon
- No current new-stock listing confirmed
- No successor announced
- 2 independent sources reviewed, 4 from the maker
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

69of 100

CapableAt or above 61% of the 456 robots we scoreand 52% of the 228 scored robot vacuums

DeficientLimitedCapableStrongExemplary

Measured on 8 of the 9 inputs16% not counted

Our assessment did not establish an independent source for field failure rate 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

Routine maintenance100+3.8
Task completion91+3.0
Coverage and navigation91+1.9

Held back by

Support longevity32−3.0
Edge-case recovery46−0.7

Capability40% of the score78What it does without you.

Task completion16% of the score91

Evidence

The UltraReach roller extends sideways to reach edges and corners, which is a job step fixed round pads do not finish, and the dock empties, washes, dries and refills without the owner touching water. Held off the top of the scale by two independent findings in Vacuum Wars' review, that carpet pickup falls short of what the rated suction implies and that object avoidance could be more reliable, plus the record's own note that consecutive mopping runs wait hours on the distillation cycle.

Coverage and navigation10% of the score91

Evidence

LiDAR with AI avoidance builds and retains a map and runs systematic multi-room passes, and no reviewer reports missed regions. Held below the flagships because 3i publishes no full-charge runtime, so per-session coverage of a large home cannot be stated, and Vacuum Wars found the app short on advanced controls, which is the surface an owner uses to correct a map after a change.

Edge-case recovery10% of the score46

Evidence

Vacuum Wars' independent review states object avoidance could be more reliable, so the machine meets its category's documented failure modes more often than a flagship does. The record carries no recovery_behavior section at all, and states that dock clogging appears in early user forums with no standardized remediation from support, so there is no evidence it resumes at the interruption point rather than waiting for a human.

Operating envelope4% of the score70

Evidence

Carpet is a documented degradation on independent testing, high-pile handling is explicitly unconfirmed in the record, and back-to-back mopping is constrained by a distillation cycle that can run for hours. The offsetting strength is real: because the dock makes its own water it needs no plumbing and no drain, so placement is unusually free.

Dependability40% of the score51Whether it keeps doing it.

Field failure ratenot countedno source verified56

Evidence

Roughly 17 to 21 months on sale, with no recall and no documented systemic defect. 3i is a first-time robot manufacturer. The record states owner reports are sparse with no longitudinal data, and WaterRecycle is a first-generation distillation subsystem with no field durability record. Absence of a failure record here is absence of evidence, not absence of failure. No independent source reports on failures for this machine, so the input is left out of the score.

Software stability14% of the score65

Evidence

The machine has a live update channel: Wi-Fi, an app, Matter, Google Home and Alexa, and the record's own longitudinal source names firmware update cadence as something it intends to track, so updates ship. Beyond that the record is silent in both directions. 3i publishes no changelog, Vacuum Wars comments on the app's current feature set but not on what any update changed, and no owner reports a regression. That silence asserts neither stability nor instability, which is the honest reading here.

Support longevity10% of the score32

Evidence

Scored as commitments, and the commitments are thin. Distribution is 3i direct at us.3itech.com plus select resellers, with no published parts catalogue for the WaterRecycle distillation unit, no third-party repair channel and no independent parts supply such as the iFixit stock that exists for the established brands. The record names the exposure itself: if the dock fails post-warranty, parts and support depth are unknown.

Ownership burden20% of the score86What it asks of you.

Routine maintenance12% of the score100

Evidence

The WaterRecycle dock distils waste water back into clean water, which removes the clean-water refill and the dirty-water dump outright, and those are the largest recurring hands-on tasks on every other all-in-one dock in this category. This is an achievement of the machine rather than an absence of hardware: the dock does more work, not less. What remains is a weekly roller and scraper inspection, monthly dock seal and water-line cleaning, a periodic bag, and an annual descale in hard-water areas.

Consumables8% of the score66

Evidence

Side brush at about $15 every three to six months, main brush at about $30, a dock dust bag, and the roller mop, for which 3i publishes no replacement interval at all, so the cadence of the defining consumable is undocumented. Everything is single-source from a two-year-old manufacturer with no third-party equivalents, which puts both price and availability at the vendor's discretion.

middle half of the databaseits medianthis robot

Reported, not scoredneither measures how well the robot works

Five-year cost$1,799

Upper third for robot vacuums. About $1,299 at purchase plus roughly $100 a year in bags, brushes and roller replacement, though the roller interval is not published so that figure is an estimate rather than a schedule. No subscription. Not counted here, because it is a risk rather than a cost line: the distillation unit has no published parts channel, so a post-warranty dock fault may have no price 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 3i S10 Ultra work in your home?

Describe your home using the controls. Each choice reads the spec sheet for you, flagging where the 3i S10 Ultra is built for your space and where it isn’t.

Home size

Primary floors

Mopping needs

Upkeep you accept

See every robot vacuum 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.

Early evidence suggests competent navigation and dock reliability; WaterRecycle durability is unproven at scale.

Unprovenowner-reported arc

The record so far

Jan 2025 launch provides <6 months of field data. Owner forums report routine operation; dock water quality and seal longevity lack documented failure patterns. Early firmware cadence is typical for a new launch.

What goes wrong4 documented · 0 self-recover

Common

Reduced cleaning scrubbing action

Owner fixRinse or replace pads weekly; detergent optional

Occasional

Water cartridge cloggingPrevents auto-refill; manual bypass needed

Owner fixMonthly cartridge swap; cleaning per manufacturer guide

Occasional

Potential mold or odor in recirculated water

Owner fixMonthly water tank rinse; check seals monthly

Rare

Navigation drift in very large open spacesMissed coverage areas on return passes

Owner fixRe-trigger map creation; check for reflective surfaces

Upkeep routine

Weekly52×/yr

Inspect the roller for wrapped hair and discoloration; the dock washes it between runs.

Monthly12×/yr

Wipe the dock and check the water-recycling lines for residue.

Seasonal4×/yr

Replace the (~$15) and the main brush if matted (~$30).

Yearly1×/yr

Descale the water path if hard-water minerals accumulate and swap the if dust buildup is heavy.

When duewhen worn or full

Replace the dock ; 3i markets roughly 60 days of hands-free operation between interventions.Typical for robot vacuums: every 3-6 months

Cost over timeabout $360 past the sticker over three years

PurchaseRunning cost

Year 1

$1,419

Year 3

$1,659

Year 5

$1,899

$1,299 to buy, then about $120 a year for the replaceable parts below. Over three years that is roughly $360 past the sticker price. Excludes electricity and any repairs.

What you replace

Every 3-6 months$15
Typical for robot vacuums: every 3-6 months

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

Step-by-step fixes

Won’t Return to Its Dock or Charge?Leaving Streaks When Mopping?Auto-Empty Base Not Emptying?All robot vacuum guides

Safety notes1 caution · 1 note

CautionWater spillage at dock during washingDock water level may overflow if overfilled; place on waterproof mat or in tile areas.
Mop lift timing on thick-pile transitionMop may not lift fast enough entering thick carpet; no-mop zones recommended for shag areas.

SPECIFICATION

The full spec sheet.

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

Dimensional drawing

Key specificationsManufacturer-publishedSources: Owner manual Manufacturer support Product page

FootprintThe width, depth and height of the robot itself, without its dock.: 14.5 × 14.2 in, 4.4 in tall✓
WeightThe robot alone, without its dock, as the maker states it.: 12.3 lbs•
BatteryStored energy in watt-hours; a larger pack runs longer, not harder.: 75 Wh · Li-ion•
Wi-FiThe bands the robot can join; many models need a 2.4 GHz network to set up.: 2.4 GHz only✓
VoiceThe assistants the maker's app links to; the robot itself does not listen.: Google Home, Alexa, Matter✓
Dust bagA bag inside the dock that the dock empties the robot's bin into; you replace the bag.: 2.5 L✓
Threshold climbThe tallest lip the robot is rated to cross; a door sill is about 0.8 in.: 1 in•
Mop liftHow far the mop pad rises when the robot crosses carpet.: 0.28 in•
Onboard dustbinThe bin inside the robot; an auto-empty dock moves its contents into a bag.: 300 mL•

Where it lands · position among 261 robot vacuumsThis robotMedianTypical range

SuctionAir pressure the fan produces at the intake, in pascals, measured the maker's own way.13,000Pamode not stated

1,000 Pa42,000 Pa

Near median

RuntimeThe maker's stated running time on one charge, at a standard setting.180min

60 min360 min

Near median

PriceThe maker's list price, not a price found in a shop.$1,299

$160$2,600

Above median

WeightThe robot alone, without its dock, as the maker states it.12.3lbs

3.6 lbs25 lbs

Above median

Position shows where the figure sits across the tracked category, not a quality judgment. Suction in Pascals has no standard test method, and the published figure is a peak-mode claim, so it is comparable only within a brand and generation.

Official referencesOwner manual Manufacturer support Product page

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: Promising Progress → Ready Now
Aug 2026 · AssessmentRobovations Score rescored under v4.2: 74 → 69
Jul 2026 · AssessmentRobovations Score recorded at 74 of 100
Feb 2025 · ReleaseBegins shipping in North American market
Jan 2025 · AnnouncementUnveiled at CES 2025 with WaterRecycle dock

Questions

What people actually ask.

6 answered

OperationDoes the 3i S10 Ultra require any water-tank refills?

No. The WaterRecycle dock distills wastewater back into purified water and refills the robot from it, which is why the machine needs no plumbing. 3i publishes no cartridge or water-filter interval for the system; the documented consumables are the dust bag, the roller mop and the brushes.

OperationHow much suction loss occurs when the mop lifts on hard floors?

3i’s own channels carry two figures for this model, 13,000 Pa and 18,000 Pa; the record stores 13,000 Pa. Mop-lift impact on suction is undocumented in either listing.

CompatibilityCan the 3i app integrate with Matter or other smart home platforms?

Manufacturer reports Matter support. Google Home and Alexa are listed; smart home integrations are reported as functional by early users.

OwnershipWhat is the actual floor-coverage per session on multi-floor homes?

3i does not publish a full-charge runtime, so per-session coverage cannot be stated. It depends on square footage, floor mix and how often the robot returns to the dock to wash the mop. 3i markets the system as running roughly 60 days between owner interventions.

OperationDoes the extendable mop arm extend across the entire footprint, or just the side edge?

The UltraReach mop extends sideways to cover edges and corners. Full-width extension is not documented; edge coverage is the primary use case.

OperationIs the 3i S10 Ultra available in North America, or only APAC?

North American availability confirmed via the US manufacturer site (us.3itech.com). Shipping direct and through select resellers; availability as of June 2026 is confirmed.

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

Cite & Embed

Reference the 3i S10 Ultra classification.

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Citation

Robovations. "3i S10 Ultra: Autonomy Level III (Conditional Autonomy)." Autonomy Ladder™, assessed August 2026. https://robovations.com/robots/3i-s10-ultra/

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Where to next

Three ways to keep going.

For evaluators

Compare with a peer.

See the 3i S10 Ultra and Ecovacs Deebot X12S OmniCyclone side by side: autonomy level, Robovations Score, readiness, and price. Classification, not a verdict.

See the full comparison

Or compare with eufy Omni E35, Ecovacs Deebot T20 Omni, Shark PowerDetect NeverTouch Pro.

For browsers

See every Level III.

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

Browse every Level III robot

Updated weekly with new entries and reclassifications.

3i S10 Ultra

Will the 3i S10 Ultra work in your home?

Living with it.

The full spec sheet.

How the assessment has moved.

What people actually ask.

Other robot vacuums we have classified.

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Ecovacs Deebot X12S OmniCyclone

Ecovacs Deebot N20 Pro+

Where it's sold

Reference the 3i S10 Ultra classification.

Three ways to keep going.

Get the next reassessment.

Compare with a peer.

See every Level III.