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3i S10 Ultra Review | 118 Data compared

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  • Avg. price in UK: ~£540
  • Avg. price in US: ~$700
  • Max suction power: 13000 Pa
  • Runtime: 180 min
  • Dustbin capacity: 300 mL
  • Max threshold height: 25 mm

3i S10 Ultra review. Compare 118 technical specifications and user reviews to see how this product ranks in the Robot Vacuums category and whether it is worth buying.

8.0

Overall score

What it is: An overall evaluation of the robot vacuum's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best robot vacuums on the market.

Score components:

80.0%

8.7

Technical Score

20.0%

5.3

User score

Excellent
8.7

Technical Score

What it is: An assessment of robot-vacuum performance across cleaning, navigation, mopping, battery life, filtration, brush design, smart features, and dimensions.

When it matters: When you want to compare robot vacuums based on technical performance and available features.

Score components:

30.0%

9.1

Cleaning

23.0%

9.3

Navigation

18.0%

9.4

Mopping

12.0%

8.1

Battery

10.0%

9.5

Smart Features

7.0%

3.4

Design

Excellent
5.3

User score

What it is: A rating that combines user reviews and the total number of reviews received by the robot vacuum

When it matters: When you want to know how a robot vacuum handles daily tasks and how reliable it remains over time according to user feedback.

Score components:

70.0%

5.4

User reviews

30.0%

5.1

Popularity

User score:
United States
Amazon_logo.png
2.7
(211)

(Reviews last updated: July 2026)

Good
  • 9.2
    Mopping

    Score components:

    35.0%

    8.8

    Mopping system type

    25.0%

    10

    Mop lifting

    20.0%

    10

    Auto water refill

    20.0%

    ?

    Water tank capacity

  • 8.9
    Pet homes

    Score components:

    35.0%

    10

    Anti-tangle technology

    30.0%

    10

    Max suction power

    20.0%

    10

    Carpet boost

    15.0%

    2.9

    Dustbin capacity

  • 8.4
    Navigation and mapping

    Score components:

    30.0%

    8.5

    Primary navigation technology

    30.0%

    10

    Obstacle avoidance technology

    20.0%

    4.0

    Object recognition

    20.0%

    10

    Real-time mapping

  • No image
No image

Best prices in UK

    N/A~ £540

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The 3i S10 Ultra is an advanced, high-end robot vacuum and mop featuring a powerful 13,000 Pa suction capacity, an 180-minute runtime powered by a 5,200 mAh battery, ApexVision dToF LiDAR navigation, and dual 3D structured light for precision obstacle avoidance. Its main characteristic and biggest pro is the world's first fully automated WaterRecycle System, which leverages a built-in dehumidifier to extract water from the air and uses 90°C sub-boiling distillation to purify wastewater, entirely eliminating the need for manual water refills or plumbed installations. It further excels with a 330 RPM self-cleaning UltraReach roller mop that mechanically extends up to 1.97 inches for deep edge scrubbing, auto-lifts 0.28 inches on carpets, and relies on a 12-in-1 self-emptying base station with a 2.5L dust bag providing up to 60 days of hands-free maintenance. However, notable cons include its below-average performance in deep-cleaning embedded carpet sand, a clunky and unintuitive companion application, a massive and exceptionally heavy base station weighing over 50 pounds, reduced water-generation efficiency in dry climates below 30% humidity, and potential issues with the roller mop leaving excess residual water on floors.

Technical Specifications of robot vacuum 3i S10 Ultra

Technical Score

What it is: An assessment of robot-vacuum performance across cleaning, navigation, mopping, battery life, filtration, brush design, smart features, and dimensions.

When it matters: When you want to compare robot vacuums based on technical performance and available features.

Score components:

30.0%

9.1

Cleaning

23.0%

9.3

Navigation

18.0%

9.4

Mopping

12.0%

8.1

Battery

10.0%

9.5

Smart Features

7.0%

3.4

Design

8.7
3i S10 Ultra has a technical score of 8.7, higher than that of 96% of robot vacuums.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the robot vacuum

When it matters: When you want to know how a robot vacuum handles daily tasks and how reliable it remains over time according to user feedback.

Score components:

70.0%

5.4

User reviews

30.0%

5.1

Popularity

User score:
United States
Amazon_logo.png
2.7
(211)

(Reviews last updated: July 2026)

5.3
3i S10 Ultra has a user score of 5.3, lower than that of 97.8% of robot vacuums.
Popularity
What it is: An indicator based on the number of reviews received by the robot vacuum.
When it matters: When you prefer to purchase a product chosen and reviewed by many other consumers.
5.1
3i S10 Ultra has a popularity of 5.1 points, which is higher than 50.1% of products in this category.
Ratio quality/price

What it is: An indicator that combines the robot vacuum's overall rating with its cost.

When it matters: When you are looking for a robot vacuum with a good balance between quality and price.

Score components:

60.0%

8.0

Overall score

40.0%

7.7

Price

7.9
3i S10 Ultra has a quality-to-price ratio of 7.9 points, which is higher than 71.9% of products in this category.
Max suction power
What it is: Maximum suction power is the highest pressure the vacuum motor is rated to produce, measured in pascals.
When it matters: Higher figures can help lift embedded debris from carpet, but brush design and airflow also determine real cleaning performance.

Importance: HIGH

13,000 Pa
3i S10 Ultra delivers 13,000 Pa of suction power, which is stronger than that of 91.4% of robot vacuums.
N. of suction power levels
What it is: The number of suction levels shows how many power settings can be selected.
When it matters: More levels give finer control over noise, battery use and cleaning strength on different floors.

Importance: MEDIUM

3
3i S10 Ultra has a suction-level count of 3, which is lower than that of 50.8% of robot vacuums and the same as that of 35.7% of robot vacuums.
Motor type
What it is: Motor type identifies whether the suction motor uses a brushed or brushless design.
When it matters: Brushless motors generally offer better efficiency and durability, although complete airflow design still determines performance.

Importance: LOW

brushless
3i S10 Ultra uses a motor type considered more efficient than those in 2.7% of robot vacuums and matched by 97.3% of robot vacuums.
Power
What it is: Power is the electrical input rating of the robot or its charging system.
When it matters: It describes energy demand, but it should not be treated as a direct measure of suction or floor-cleaning ability.

Importance: LOW

?
Cleaning modes
What it is: Cleaning modes are the distinct automatic or targeted cleaning programs available on the robot.
When it matters: A wider choice makes it easier to match cleaning behavior to rooms, spills, edges or quiet periods.

Importance: MEDIUM

?
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Mopping capability
What it is: Mopping capability means the robot can wipe hard floors with a damp pad or active mop system.
When it matters: It is useful for fine dust and light marks, but it does not automatically mean the robot can replace deep manual mopping.

Importance: MEDIUM

yes
3i S10 Ultra can mop floors. This feature is available on 78.9% of robot vacuums.
Mopping system type
What it is: The mopping system type describes how the robot applies motion and pressure to its mop, such as a static pad, vibrating pad, rotating pads or roller.
When it matters: Active systems generally scrub dried marks better, while pad lifting and dock washing determine how practical they are on mixed floors.

Importance: HIGH

roller mop
3i S10 Ultra uses roller mop for mopping, a system that is more effective than those in 95.8% of robot vacuums and matched by 4% of robot vacuums.
Mop pad type
What it is: Mop pad type describes the pad shape and attachment used by the mopping system.
When it matters: It affects floor contact, edge reach, replacement availability and whether the pads can be washed easily.

Importance: LOW

roller
Mop pad material
What it is: Mop pad material is the fabric or fibre used to wipe and absorb dirt from the floor.
When it matters: It influences absorption, scrubbing action, durability and how easily the pad releases dirt when washed.

Importance: LOW

polyester and nylon (microfiber)
Mop pressure
What it is: Mop pressure is the downward force the mopping system applies to the floor.
When it matters: More controlled pressure can improve removal of dried marks, although pad motion and moisture delivery also matter.

Importance: LOW

?
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Primary navigation technology
What it is: The primary navigation technology is the main sensor system the robot uses to understand its position and plan a route.
When it matters: It affects route efficiency, coverage and how reliably the robot returns to its dock, especially in larger or more complex homes.

Importance: HIGH

LiDAR
3i S10 Ultra uses LiDAR as its primary navigation system, which is more capable than the systems in 34.7% of robot vacuums and matched by 60.4% of robot vacuums.
Mapping capability
What it is: Mapping capability lets the robot create a floor plan instead of cleaning only from moment-to-moment sensor reactions.
When it matters: A saved map is important for room selection, no-go zones and predictable coverage.

Importance: MEDIUM

yes
3i S10 Ultra maps the floor. This feature is available on 74% of robot vacuums.
Real-time mapping
What it is: Real-time mapping updates the floor plan and the robot's route while a cleaning run is in progress.
When it matters: It helps you follow progress, spot missed areas and see where the robot is if it becomes stuck.

Importance: LOW

yes
3i S10 Ultra updates its map in real time. This feature is available on 68.5% of robot vacuums.
Grounded yes from data_scrape2/data_scrape4 (agreement or one clear yes with other source empty/noisy).
Multiple map storage
What it is: Multiple map storage keeps separate floor plans for more than one level or cleaning area.
When it matters: It is useful in multi-storey homes because the robot does not need to rebuild the map each time it changes floors.

Importance: LOW

yes
3i S10 Ultra stores multiple maps. This feature is available on 56.5% of robot vacuums.
Map editing
What it is: Map editing lets you divide, merge, name and adjust rooms in the app.
When it matters: Accurate room boundaries make room-by-room schedules and targeted cleaning easier to use.

Importance: LOW

yes
3i S10 Ultra lets you edit maps. This feature is available on 63.9% of robot vacuums.
Grounded yes from data_scrape2/data_scrape4 (agreement or one clear yes with other source empty/noisy).
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App control
What it is: App control lets you operate and configure the robot from a smartphone application.
When it matters: It is needed for maps, room selection, schedules and many advanced settings on modern robot vacuums.

Importance: LOW

yes
3i S10 Ultra supports app control. This feature is available on 94.4% of robot vacuums.
App name
What it is: App name identifies the manufacturer's mobile application used to control the robot.
When it matters: It helps you check phone compatibility, account requirements and user feedback for the correct app before buying.

Importance: LOW

3i
Wi-Fi connectivity
What it is: Wi-Fi connectivity links the robot to its app and cloud services through the home network.
When it matters: It enables remote control and updates, but setup quality depends on router compatibility and signal coverage.

Importance: LOW

yes
3i S10 Ultra connects to Wi-Fi. This feature is available on 93.7% of robot vacuums.
Supported Wi-Fi bands
What it is: Supported Wi-Fi bands identify the wireless frequencies the robot can use, commonly 2.4 GHz and sometimes 5 GHz.
When it matters: Band support matters during setup because many robot vacuums connect only to a 2.4 GHz network.

Importance: LOW

dual-band
Bluetooth connectivity
What it is: Bluetooth connectivity provides a short-range wireless link, often used during initial setup.
When it matters: It can simplify pairing but usually does not replace Wi-Fi for remote app control.

Importance: LOW

no
3i S10 Ultra does not support Bluetooth, while this feature is available on 64.7% of robot vacuums.
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Battery capacity
What it is: Battery capacity is the amount of electrical charge the battery can store, measured in milliamp-hours.
When it matters: More capacity can support longer cleaning runs, but motor power, mopping and navigation also affect actual runtime.

Importance: MEDIUM

5,200 mAh
3i S10 Ultra has a battery capacity of 5,200 mAh; it is higher than that of 65.2% of robot vacuums and equal to that of 28.2% of robot vacuums.
Grounded current sources converge on 5200 mAh battery capacity.
Battery type
What it is: Battery type identifies the battery chemistry used by the robot.
When it matters: It affects weight, service life and charging behavior, with lithium-ion now being the common modern design.

Importance: LOW

Li-ion
Battery voltage
What it is: Battery voltage is the nominal electrical voltage of the robot's battery pack.
When it matters: It is mainly useful for checking replacement-battery compatibility and does not by itself indicate runtime.

Importance: LOW

14.4
Runtime
What it is: Runtime is how long the robot is rated to clean on one charge under the stated test mode.
When it matters: Longer runtime matters on large floors, while recharge-and-resume can compensate for a smaller battery.

Importance: MEDIUM

180 min
3i S10 Ultra runs for 180 min per charge; this is longer than 63.7% of robot vacuums and equal to 13% of robot vacuums.
Recharge and resume
What it is: Recharge and resume sends the robot back to charge and then returns it to the unfinished part of the map.
When it matters: It allows large cleaning jobs to finish without manual intervention when one battery charge is not enough.

Importance: LOW

yes
3i S10 Ultra resumes cleaning after charging. This feature is available on 83.1% of robot vacuums.
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Shape
What it is: Shape describes the robot's body outline, most commonly round or D-shaped.
When it matters: Shape influences corner reach and manoeuvring, although brush placement and route planning are equally important.

Importance: LOW

round
Height
What it is: Height is the vertical clearance required by the robot.
When it matters: A lower body can clean under more sofas, beds and cabinets, but measure the furniture gap before relying on it.

Importance: LOW

112 mm
3i S10 Ultra is 112 mm tall; this is higher than 99% of robot vacuums.
Width
What it is: Width is the side-to-side size of the robot.
When it matters: It determines whether the robot can pass between chair legs, furniture and other narrow spaces.

Importance: LOW

367 mm
3i S10 Ultra is 367 mm wide; this is wider than 99.6% of robot vacuums.
Length
What it is: Length is the front-to-back size of the robot.
When it matters: Together with width and shape, it affects turning space and access around closely placed furniture.

Importance: LOW

367 mm
3i S10 Ultra is 367 mm long; this is longer than 99.4% of robot vacuums.
Weight
What it is: Weight is the mass of the robot itself, excluding its dock.
When it matters: A lighter robot is easier to carry between floors, while weight has little direct connection to cleaning quality.

Importance: LOW

3.18 kg
3i S10 Ultra weighs 3.18 kg; this is less than 66.7% of robot vacuums and equal to 2.5% of robot vacuums.
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3i S10 Ultra vs the average robot vacuum

  • 9,000 Pa stronger suction
    3i S10 Ultra delivers 13,000 Pa, compared with 4,000 Pa for the average robot vacuum.
    What it is: Maximum suction power is the highest pressure the vacuum motor is rated to produce, measured in pascals.
    When it matters: Higher figures can help lift embedded debris from carpet, but brush design and airflow also determine real cleaning performance.

    Importance: HIGH

    3i S10 Ultra delivers 13,000 Pa, compared with 4,000 Pa for the average robot vacuum.13000 Pa vs 4000 Pa
  • Better mopping system
    3i S10 Ultra uses roller mop for mopping, while the average robot vacuum uses static pad.
    What it is: The mopping system type describes how the robot applies motion and pressure to its mop, such as a static pad, vibrating pad, rotating pads or roller.
    When it matters: Active systems generally scrub dried marks better, while pad lifting and dock washing determine how practical they are on mixed floors.

    Importance: HIGH

    3i S10 Ultra uses roller mop for mopping, while the average robot vacuum uses static pad.roller mop vs static pad
  • Prevents hair tangles
    3i S10 Ultra prevents hair tangles, while the average robot vacuum has no anti-tangle system.
    Grounded yes from data_scrape sources: Dual Anti-Tangle Design
    What it is: Anti-tangle technology is designed to prevent or remove hair wrapped around the main brush and axles.
    When it matters: It is especially valuable in homes with pets or long hair because it reduces manual brush cleaning.

    Importance: MEDIUM

    3i S10 Ultra prevents hair tangles, while the average robot vacuum has no anti-tangle system.
  • 150 rpm faster mop rotation
    3i S10 Ultra rotates its mops at 330 rpm, compared with 180 rpm for the average robot vacuum.
    What it is: Mop rotation speed is how quickly rotating mop pads turn.
    When it matters: Higher speed can increase scrubbing action, but cleaning solution, pressure and pad condition also affect the result.

    Importance: MEDIUM

    3i S10 Ultra rotates its mops at 330 rpm, compared with 180 rpm for the average robot vacuum.330 rpm vs 180 rpm
  • Lifts its mop over carpets
    3i S10 Ultra lifts its mop over carpets, while the average robot vacuum does not lift its mop automatically.
    What it is: Mop lifting raises the mop pads when the robot crosses carpet or returns to its dock.
    When it matters: It helps protect rugs from moisture in homes with both hard floors and carpet.

    Importance: MEDIUM

    3i S10 Ultra lifts its mop over carpets, while the average robot vacuum does not lift its mop automatically.
  • Recognizes more object types
    3i S10 Ultra recognizes 100 object types, compared with 0 for the average robot vacuum.
    What it is: Object recognition is the number of object types the robot is designed to identify and avoid.
    When it matters: A broader recognition set is useful in busy homes where small everyday objects are often left on the floor.

    Importance: MEDIUM

    3i S10 Ultra recognizes 100 object types, compared with 0 for the average robot vacuum.100 vs 0
  • Empties its dustbin automatically
    3i S10 Ultra empties its dustbin automatically, while the average robot vacuum requires manual dustbin emptying.
    What it is: Auto-empty capability lets the dock remove dry debris from the robot's bin after cleaning.
    When it matters: It reduces daily emptying and is especially useful for pet hair, large homes and frequent schedules.

    Importance: LOW

    3i S10 Ultra empties its dustbin automatically, while the average robot vacuum requires manual dustbin emptying.
  • Cleans its mop automatically at the dock
    3i S10 Ultra cleans its mop automatically at the dock, while the average robot vacuum does not clean its mop automatically at the dock.
    What it is: A self-cleaning dock washes its mop tray, mop pads or both with limited manual work.
    When it matters: It reduces hands-on maintenance, but the dirty-water tank and dock tray still need periodic cleaning.

    Importance: LOW

    3i S10 Ultra cleans its mop automatically at the dock, while the average robot vacuum does not clean its mop automatically at the dock.
  • 120 m² more cleaning coverage
    3i S10 Ultra can clean up to 300 m² per charge, compared with 180 m² for the average robot vacuum.
  • 2,000 mAh more battery capacity
    3i S10 Ultra has a battery capacity of 5,200 mAh, compared with 3,200 mAh for the average robot vacuum.
  • 30 min longer runtime
    3i S10 Ultra runs for 180 min per charge, compared with 150 min for the average robot vacuum.
  • 0.5 h faster charging
    3i S10 Ultra takes 4 h to charge, compared with 4.5 h for the average robot vacuum.
  • 0.35 kg lighter robot
    3i S10 Ultra weighs 3.2 kg, compared with 3.53 kg for the average robot vacuum.
  • Detects liquid spills
    3i S10 Ultra detects liquid spills, while the average robot vacuum does not detect liquid spills.
  • Supports remote camera monitoring
    3i S10 Ultra supports remote camera monitoring, while the average robot vacuum does not support camera monitoring.
  • Includes a child lock
    3i S10 Ultra includes a child lock, while the average robot vacuum has no child lock.
  • Recognizes more object types
    3i S10 Ultra recognizes 100 object types, compared with 0 for the average robot vacuum.
  • 5 mm greater threshold clearance
    3i S10 Ultra climbs thresholds up to 25 mm, compared with 20 mm for the average robot vacuum.
  • 9,000 Pa stronger suction
    3i S10 Ultra delivers 13,000 Pa, compared with 4,000 Pa for the average robot vacuum.
  • Prevents hair tangles
    3i S10 Ultra prevents hair tangles, while the average robot vacuum has no anti-tangle system.
  • Empties its dustbin automatically
    3i S10 Ultra empties its dustbin automatically, while the average robot vacuum requires manual dustbin emptying.
  • Detects dirtier areas
    3i S10 Ultra detects dirtier areas, while the average robot vacuum does not detect dirtier areas.
  • 1 more side brushes
    The number of side brushes on 3i S10 Ultra is 2, compared with 1 on the average robot vacuum.
  • Alerts you when its dustbin is full
    3i S10 Ultra alerts you when its dustbin is full, while the average robot vacuum does not alert you when its dustbin is full.
  • Better mopping system
    3i S10 Ultra uses roller mop for mopping, while the average robot vacuum uses static pad.
  • 150 rpm faster mop rotation
    3i S10 Ultra rotates its mops at 330 rpm, compared with 180 rpm for the average robot vacuum.
  • Lifts its mop over carpets
    3i S10 Ultra lifts its mop over carpets, while the average robot vacuum does not lift its mop automatically.
  • Cleans its mop automatically at the dock
    3i S10 Ultra cleans its mop automatically at the dock, while the average robot vacuum does not clean its mop automatically at the dock.
  • Refills its water tank automatically
    3i S10 Ultra refills its water tank automatically, while the average robot vacuum requires manual water refilling.
  • Dries its mop automatically at the dock
    3i S10 Ultra dries its mop automatically at the dock, while the average robot vacuum does not dry its mop automatically.
  • Dispenses cleaning solution automatically
    3i S10 Ultra dispenses cleaning solution automatically, while the average robot vacuum does not dispense cleaning solution automatically.
  • Supports cleaning solution
    3i S10 Ultra supports cleaning solution, while the average robot vacuum does not support cleaning solution.

Total
Battery
Design
Smart Features
Navigation
Cleaning
Mopping
  • 18 mm taller body
    3i S10 Ultra is 112 mm tall, compared with 94 mm for the average robot vacuum.
  • 18.38 kg heavier base station
    3i S10 Ultra has a base station that weighs 22.7 kg, compared with 4.3 kg for the average robot vacuum.
  • 26.3 cm taller base station
    3i S10 Ultra has a base station that is 60.6 cm tall, compared with 34.3 cm for the average robot vacuum.
  • 28.35 mm wider body
    3i S10 Ultra is 367 mm wide, compared with 338.65 mm for the average robot vacuum.
  • 27 mm longer body
    3i S10 Ultra is 367 mm long, compared with 340 mm for the average robot vacuum.
  • 14.45 cm wider base station
    3i S10 Ultra has a base station that is 46 cm wide, compared with 31.55 cm for the average robot vacuum.
  • Does not support Bluetooth
    3i S10 Ultra does not support Bluetooth, while the average robot vacuum connects via Bluetooth.
  • 1 fewer suction levels
    The number of suction levels on 3i S10 Ultra is 3, compared with 4 on the average robot vacuum.
  • 0.5 L smaller dust bag
    3i S10 Ultra has a 2.5 L auto-empty dust bag, compared with 3 L on the average robot vacuum.
  • 100 mL smaller dustbin
    3i S10 Ultra has a dustbin capacity of 300 mL, compared with 400 mL for the average robot vacuum.
  • Does not include a cleaning tool
    3i S10 Ultra does not include a cleaning tool, while the average robot vacuum includes a cleaning tool.
  • 1 fewer suction levels
    The number of suction levels on 3i S10 Ultra is 3, compared with 4 on the average robot vacuum.
    What it is: The number of suction levels shows how many power settings can be selected.
    When it matters: More levels give finer control over noise, battery use and cleaning strength on different floors.

    Importance: MEDIUM

    The number of suction levels on 3i S10 Ultra is 3, compared with 4 on the average robot vacuum.3 vs 4
  • 0.5 L smaller dust bag
    3i S10 Ultra has a 2.5 L auto-empty dust bag, compared with 3 L on the average robot vacuum.
    What it is: Auto-empty dust-bag capacity is the amount of debris the station's disposable bag can hold.
    When it matters: A larger bag extends the time between changes, especially in homes with pets or frequent cleaning.

    Importance: LOW

    3i S10 Ultra has a 2.5 L auto-empty dust bag, compared with 3 L on the average robot vacuum.2.5 L vs 3 L
  • 100 mL smaller dustbin
    3i S10 Ultra has a dustbin capacity of 300 mL, compared with 400 mL for the average robot vacuum.
    What it is: Dustbin capacity is the amount of dry debris the bin inside the robot can hold.
    When it matters: A larger bin needs emptying less often, which matters in homes with pets unless an auto-empty dock is included.

    Importance: MEDIUM

    3i S10 Ultra has a dustbin capacity of 300 mL, compared with 400 mL for the average robot vacuum.300 mL vs 400 mL
  • 18 mm taller body
    3i S10 Ultra is 112 mm tall, compared with 94 mm for the average robot vacuum.
    What it is: Height is the vertical clearance required by the robot.
    When it matters: A lower body can clean under more sofas, beds and cabinets, but measure the furniture gap before relying on it.

    Importance: LOW

    3i S10 Ultra is 112 mm tall, compared with 94 mm for the average robot vacuum.112 mm vs 94 mm
  • 18.38 kg heavier base station
    3i S10 Ultra has a base station that weighs 22.7 kg, compared with 4.3 kg for the average robot vacuum.
    What it is: Base-station weight is the mass of the dock without the robot.
    When it matters: A lighter dock is easier to move, while a heavier station may remain more stable during docking and mop washing.

    Importance: LOW

    3i S10 Ultra has a base station that weighs 22.7 kg, compared with 4.3 kg for the average robot vacuum.22.68 kg vs 4.3 kg
  • Does not include a cleaning tool
    3i S10 Ultra does not include a cleaning tool, while the average robot vacuum includes a cleaning tool.
    What it is: A cleaning tool is a small brush or cutter supplied for removing hair and debris from the robot.
    When it matters: It makes routine brush and filter maintenance easier, particularly in homes with pets.

    Importance: LOW

    3i S10 Ultra does not include a cleaning tool, while the average robot vacuum includes a cleaning tool.
  • 26.3 cm taller base station
    3i S10 Ultra has a base station that is 60.6 cm tall, compared with 34.3 cm for the average robot vacuum.
    What it is: Base-station height is the vertical size of the dock.
    When it matters: It determines whether the station fits under shelves or counters and whether its tanks can be removed easily.

    Importance: LOW

    3i S10 Ultra has a base station that is 60.6 cm tall, compared with 34.3 cm for the average robot vacuum.60.6 cm vs 34.3 cm
  • 28.35 mm wider body
    3i S10 Ultra is 367 mm wide, compared with 338.65 mm for the average robot vacuum.
    What it is: Width is the side-to-side size of the robot.
    When it matters: It determines whether the robot can pass between chair legs, furniture and other narrow spaces.

    Importance: LOW

    3i S10 Ultra is 367 mm wide, compared with 338.65 mm for the average robot vacuum.367 mm vs 338.65 mm
Total
Overall
Design
Smart Features
Cleaning

Graphic comparison of 3i S10 Ultra and other robot vacuums

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Third-party reviews

United States
Amazon_logo.png
2.7
211 Reviews

(Reviews last updated: July 2026)

What customers like about 3i S10 Ultra?

  • Innovative WaterRecycle system that distills dirty water and automatically extracts moisture from the air, removing the need for manual refills
  • Exceptional raw suction power (up to 13,000 Pa) that effectively handles large debris, surface dirt, and pet hair
  • Highly automated base station that auto-empties dust, continuous self-cleans, and hot-air dries the mop roller
  • Advanced roller mop design that outperforms spinning pads on hard floors and wet spills by utilizing a built-in scraper and squeegee
  • Smart navigation, fast mapping, and effective obstacle avoidance using dual 3D structured light and an AI camera
  • Extendable mechanical mop arm that offers thorough edge-to-edge cleaning along walls and corners
  • Solid, high-end build quality and robust mobile app customization features

What customers dislike about 3i S10 Ultra?

  • High premium price point compared to standard flagship robot vacuums
  • Sub-par deep cleaning performance on carpets and struggles with deeply embedded dirt or sand
  • Weak performance when tackling dried-on stains compared to spinning mop pads
  • The massive base station tower is exceptionally heavy (around 50 lbs), bulky, and takes up significant space
  • Water-from-air extraction struggles and requires manual filling if the home's humidity drops below 30%
  • The internal water distillation process can be slow, sometimes taking hours to complete between consecutive cleaning runs
  • Proprietary consumable supplies like replacement dust bags can suffer from manufacturer stock shortages
  • Struggles to navigate over certain floor thresholds and small entry rugs without getting stuck

Expert reviews

V
vacuumwars.com
24/02/2025
Summary of the review
3i S10 Ultra Review: A Water Recycling Robot Vacuum
L
lifehacker.com
16/04/2025
Summary of the review
3i S10 Ultra Robot Vacuum and Mop - Lifehacker
L
lifehacker.com
21/04/2025
Summary of the review
The 3i S10 Ultra Robot Vacuum vs. the Roborock Saros 10R
F
freshlycharged.com
02/04/2025
Summary of the review
3i S10 Ultra Review – This Vacuum Turns Air into Water!
V
vacuumchef.com
03/06/2026
Summary of the review
3i S10 Ultra Robot Vacuum and Mop Review: The First Self-Refilling, Water-Recycling Cleaning System
Z
zdnet.com
25/06/2025
Summary of the review
Should you use your robot vacuum with recycled water? My results after a week of testing
H
handelsblatt.com
11/02/2026
Summary of the review
3i S10 Ultra Review and Experience: A Powerful Robot Vacuum for Your Home
(Translated)Show original
R
rtl.de
02/02/2026
Summary of the review
3i S10 Ultra Review and Experience – Innovative Vacuum
(Translated)Show original
G
gamestar.de
16/11/2025
Summary of the review
This robot vacuum makes its own mopping water
(Translated)Show original
C
chip.de
21/11/2025
Summary of the review
Generates windshield wiper fluid from ambient air: 3i S10 Ultra review
(Translated)Show original
F
frandroid.com
22/11/2025
Summary of the review
3i S10 Ultra Review: Our Full Verdict - Robot Vacuums
(Translated)Show original
N
neozone.org
08/12/2025
Summary of the review
S10 Ultra Robot Vacuum and Mop, Full Review and Opinions
(Translated)Show original
C
clubic.com
13/08/2025
Summary of the review
3i S10 Ultra Review: This robot vacuum recycles dirty water, and it actually works
(Translated)Show original
C
capital.fr
18/06/2025
Summary of the review
We tested the 3i S10 Ultra: A robot vacuum and mop as innovative as it is massive
(Translated)Show original
C
capital.fr
03/09/2025
Summary of the review
3i S10 Ultra vs Roborock Saros 10 Robot Vacuum: Is the Innovation Race Worth the Detour?
(Translated)Show original
L
labomaison.com
26/05/2026
Summary of the review
3i S10 Ultra Review: Robotic Mop with Innovative 12-in-1 Station
(Translated)Show original
C
corriere.it
10/08/2025
Summary of the review
The water-recycling robot vacuum: how the 3i S10 Ultra works and why it's a game-changer
(Translated)Show original
L
luigimelita.com
22/04/2026
Summary of the review
3i S10 Ultra review: The only one that recycles water. 1 month of testing without touching a tank
(Translated)Show original

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