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EUREKA NEW400 Review | 118 Data compared

Avg. price: ~£110
Max suction power: ?
Runtime: ?
Dustbin capacity: ?
Max threshold height: ?

EUREKA NEW400 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.

4.9

Poor

4.9

Poor

?

5.6
Mopping
Score components:
35.0%
4.0
Mopping system type
25.0%
4.0
Mop lifting
20.0%
?
Auto water refill
20.0%
?
Water tank capacity
8.7
Pet homes
Score components:
35.0%
10
Anti-tangle technology
30.0%
?
Max suction power
20.0%
?
Carpet boost
15.0%
?
Dustbin capacity
7.2
Navigation and mapping
Score components:
30.0%
?
Primary navigation technology
30.0%
?
Obstacle avoidance technology
20.0%
?
Object recognition
20.0%
4.0
Real-time mapping

No image

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Best prices in UK

N/A~ £110

Best rankings

Verdict

The Eureka NEW400 is an upright cordless wet/dry vacuum cleaner and floor washer powered by a 120W motor, designed strictly for sealed hard floors. Key characteristics include a dual-tank system featuring a 600ml clean water tank and a 400ml dirty water tank to eliminate cross-contamination, a 3.95kg (8.7 lbs) lightweight design, and a noise level of 80dB. Main pros of the unit include its self-propelled traction system for effortless maneuverability, a hands-free one-touch self-cleaning cycle that flushes the roller brush, and a high-efficiency recovery system that recaptures over 90% of dirty water for fast-drying floors. However, main cons include a relatively short 30-minute maximum runtime that drops further on high mode, a non-swappable battery requiring a lengthy 3 to 6 hours to fully recharge, and the lack of an optional hard brush head for scrubbing stubborn, deeply ground-in dirt.

Technical Specifications of robot vacuum EUREKA NEW400

Overall score

4.9

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?

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.

Cleaning

6.3

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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

?

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

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

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

120 W

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

5.8

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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

?

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

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

none

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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Navigation

4.0

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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

?

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

?

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

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

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

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Smart Features

6.0

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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

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

?

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

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

no Wi-Fi

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

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Battery

3.5

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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

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

22.2

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

?

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

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Design

0.0

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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

?

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

?

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

?

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

?

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

?

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EUREKA NEW400 vs the average robot vacuum

Why is EUREKA NEW400 better than the average robot vacuum?

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Prevents hair tangles
EUREKA NEW400 prevents hair tangles, while the average robot vacuum has no anti-tangle system.
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
EUREKA NEW400 prevents hair tangles, while the average robot vacuum has no anti-tangle system.
Cleans its mop automatically at the dock
EUREKA NEW400 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
EUREKA NEW400 cleans its mop automatically at the dock, while the average robot vacuum does not clean its mop automatically at the dock.
Alerts you when its dustbin is full
EUREKA NEW400 alerts you when its dustbin is full, while the average robot vacuum does not alert you when its dustbin is full.
What it is: A dustbin-full indicator warns when the robot's internal bin needs emptying.
When it matters: It helps avoid continuing a run with no remaining debris capacity, especially on models without auto-emptying.
Importance: LOW
EUREKA NEW400 alerts you when its dustbin is full, while the average robot vacuum does not alert you when its dustbin is full.
Dispenses cleaning solution automatically
EUREKA NEW400 dispenses cleaning solution automatically, while the average robot vacuum does not dispense cleaning solution automatically.
What it is: A cleaning-solution dispenser automatically adds a controlled amount of approved detergent to the mopping water.
When it matters: It avoids manual dosing and can improve cleaning of greasy marks when the manufacturer permits detergent use.
Importance: LOW
EUREKA NEW400 dispenses cleaning solution automatically, while the average robot vacuum does not dispense cleaning solution automatically.
Supports cleaning solution
EUREKA NEW400 supports cleaning solution, while the average robot vacuum does not support cleaning solution.
What it is: Cleaning-solution compatibility indicates whether the mopping system is designed to use an approved detergent.
When it matters: It matters when water alone is not enough for greasy marks, but only manufacturer-approved solutions should be used.
Importance: LOW
EUREKA NEW400 supports cleaning solution, while the average robot vacuum does not support cleaning solution.
2.36x cheaper
EUREKA NEW400 is cheaper than the average robot vacuum (£110 vs £260).
EUREKA NEW400 is cheaper than the average robot vacuum (£110 vs £260).£110 vs £260
Prevents hair tangles
EUREKA NEW400 prevents hair tangles, while the average robot vacuum has no anti-tangle system.
Alerts you when its dustbin is full
EUREKA NEW400 alerts you when its dustbin is full, while the average robot vacuum does not alert you when its dustbin is full.
Cleans its mop automatically at the dock
EUREKA NEW400 cleans its mop automatically at the dock, while the average robot vacuum does not clean its mop automatically at the dock.
Dispenses cleaning solution automatically
EUREKA NEW400 dispenses cleaning solution automatically, while the average robot vacuum does not dispense cleaning solution automatically.
Supports cleaning solution
EUREKA NEW400 supports cleaning solution, while the average robot vacuum does not support cleaning solution.

Why is EUREKA NEW400 worse than the average robot vacuum?

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Does not resume cleaning after charging
EUREKA NEW400 does not resume cleaning after charging, while the average robot vacuum resumes cleaning after charging.
700 mAh less battery capacity
EUREKA NEW400 has a battery capacity of 2,500 mAh, compared with 3,200 mAh for the average robot vacuum.
Grounded current sources converge on 2500 mAh battery capacity.
0.5 h slower charging
EUREKA NEW400 takes 5 h to charge, compared with 4.5 h for the average robot vacuum.
Does not connect to Wi-Fi
EUREKA NEW400 does not connect to Wi-Fi, while the average robot vacuum connects to Wi-Fi.
Does not support voice assistants
EUREKA NEW400 does not support voice assistants, while the average robot vacuum works with voice assistants.
Does not support cloud connectivity
EUREKA NEW400 does not support cloud connectivity, while the average robot vacuum supports cloud-connected features.
Does not support Bluetooth
EUREKA NEW400 does not support Bluetooth, while the average robot vacuum connects via Bluetooth.
Does not support no-mop zones
EUREKA NEW400 does not support no-mop zones, while the average robot vacuum supports configurable no-mop zones.
Does not support map editing
EUREKA NEW400 does not support map editing, while the average robot vacuum lets you edit maps.
Grounded no from data_scrape2/data_scrape4 (agreement or one clear no/N/A with other source empty/noisy).
Does not store multiple maps
EUREKA NEW400 does not store multiple maps, while the average robot vacuum stores multiple maps.
Does not recognize individual rooms
EUREKA NEW400 does not recognize individual rooms, while the average robot vacuum recognizes individual rooms.
Does not update its map in real time
EUREKA NEW400 does not update its map in real time, while the average robot vacuum updates its map in real time.
Does not support virtual boundaries
EUREKA NEW400 does not support virtual boundaries, while the average robot vacuum supports virtual boundaries.
Does not show its location in real time
EUREKA NEW400 does not show its location in real time, while the average robot vacuum shows its location in real time.
Has no gyroscope
EUREKA NEW400 has no gyroscope, while the average robot vacuum has a gyroscope.
2 fewer suction levels
The number of suction levels on EUREKA NEW400 is 2, compared with 4 on the average robot vacuum.
Does not detect carpets automatically
EUREKA NEW400 does not detect carpets automatically, while the average robot vacuum detects carpets automatically.
Does not support zone cleaning
EUREKA NEW400 does not support zone cleaning, while the average robot vacuum supports zone cleaning.
Less capable mopping system
EUREKA NEW400 uses none for mopping, while the average robot vacuum uses static pad.
3 fewer water-flow levels
The number of water-flow levels on EUREKA NEW400 is 0, compared with 3 on the average robot vacuum.
No mopping system, so water flow levels are not applicable.
2 fewer suction levels
The number of suction levels on EUREKA NEW400 is 2, 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 EUREKA NEW400 is 2, compared with 4 on the average robot vacuum.2 vs 4
Does not detect carpets automatically
EUREKA NEW400 does not detect carpets automatically, while the average robot vacuum detects carpets automatically.
What it is: Carpet detection allows the robot to recognize when it moves from hard flooring onto carpet or a rug.
When it matters: It enables carpet-specific actions such as suction boost, mop lifting or carpet avoidance.
Importance: MEDIUM
EUREKA NEW400 does not detect carpets automatically, while the average robot vacuum detects carpets automatically.
Does not support no-mop zones
EUREKA NEW400 does not support no-mop zones, while the average robot vacuum supports configurable no-mop zones.
What it is: No-mop zones are mapped areas that the robot avoids while its mop is attached or wet.
When it matters: They protect rugs and moisture-sensitive floors when the robot cannot lift its mop high enough.
Importance: LOW
EUREKA NEW400 does not support no-mop zones, while the average robot vacuum supports configurable no-mop zones.
Does not support map editing
EUREKA NEW400 does not support map editing, while the average robot vacuum lets you edit maps.
Grounded no from data_scrape2/data_scrape4 (agreement or one clear no/N/A with other source empty/noisy).
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
EUREKA NEW400 does not support map editing, while the average robot vacuum lets you edit maps.
Does not store multiple maps
EUREKA NEW400 does not store multiple maps, while the average robot vacuum stores multiple maps.
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
EUREKA NEW400 does not store multiple maps, while the average robot vacuum stores multiple maps.
Does not recognize individual rooms
EUREKA NEW400 does not recognize individual rooms, while the average robot vacuum recognizes individual rooms.
What it is: Room recognition identifies individual rooms on the saved map.
When it matters: It matters when you want to clean or schedule the kitchen, bedroom or another room separately.
Importance: LOW
EUREKA NEW400 does not recognize individual rooms, while the average robot vacuum recognizes individual rooms.
Does not update its map in real time
EUREKA NEW400 does not update its map in real time, while the average robot vacuum updates its map in real time.
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
EUREKA NEW400 does not update its map in real time, while the average robot vacuum updates its map in real time.
Does not support zone cleaning
EUREKA NEW400 does not support zone cleaning, while the average robot vacuum supports zone cleaning.
What it is: Zone cleaning lets you draw or select a specific area on the map for the robot to clean.
When it matters: It is useful for crumbs around a table or another small area that does not need a full-room run.
Importance: LOW
EUREKA NEW400 does not support zone cleaning, while the average robot vacuum supports zone cleaning.

Graphic comparison of EUREKA NEW400 and other robot vacuums

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Third-party reviews

What customers like about EUREKA NEW400?

Efficient dual-action performance that vacuums and mops hard floors simultaneously
Self-propelled traction system makes maneuvering nearly effortless
Convenient one-touch hands-free self-cleaning cycle for the brush roller
Dual-tank system keeps clean and dirty water completely separate
Lightweight construction under 4kg makes it easy to carry up and down stairs
Highly effective at picking up everyday spills, wet messes, and pet hair
Dries floors quickly with over 90% water recovery, leaving minimal to no watermarks

What customers dislike about EUREKA NEW400?

Battery runtime is limited to roughly 20-30 minutes, particularly short on high-power mode
Long battery recharge time taking anywhere between three to six hours
The battery is built-in and cannot be swapped out for a fully charged spare
Lacks an option for a hard scrubbing brush head to tackle heavy, deeply ground-in dirt
Occasional issues with water streaking or small puddles if left standing in one spot
Strict warranty terms require using only specific manufacturer-approved cleaning solutions
Can develop unpleasant odors if the dirty water tank and components are not cleaned out immediately after use

Expert reviews

techaeris.com

23/08/2023

Summary of the review

Eureka NEW400 review: Dead simple to use and an easy on the wallet wet/dry vacuum

The Techaeris review highlights the Eureka NEW400 as a budget-friendly ($200) 2-in-1 cordless wet/dry vacuum and mop that excels in simplicity with an 8.7 lb design and a self-propelled system. Key advantages include its maneuverability, dual-tank system, and one-touch self-cleaning, though it is limited by a non-removable 20-30 minute battery and lack of heavy-duty scrubbing power.

forbes.com

30/08/2023

Summary of the review

Review: Eureka NEW400 Cordless Wet/Dry Vacuum And Floor Washer

The Eureka NEW400 is an efficient, lightweight, and quiet cordless wet/dry vacuum and floor washer featuring a 120W motor, a dual-tank system, and a self-propelled design with a convenient self-cleaning roller cycle. While offering excellent, easy-to-use performance, the unit lacks additional attachments for detailing and may struggle with heavy, large-debris cleanup, requiring pre-cleaning in those scenarios.

techhive.com

13/12/2023

Summary of the review

Eureka New400 Wet/Dry Vacuum review: Kick the bucket

The TechHive review praises the Eureka NEW400 as a budget-friendly, 8.7-pound cordless wet/dry vacuum with an agile swivel head and a 600-rpm roller for effective cleaning of sealed hard surfaces. Key features include a dual-tank system with a 90% water recovery rate and an automated, one-minute self-cleaning cycle. However, drawbacks include a limited 20-30 minute runtime, a long 6-hour charge time for the non-removable battery, 80 dB noise levels during self-cleaning, and a requirement to use proprietary cleaner to avoid voiding the warranty.

techadvisor.com

31/12/2023

Summary of the review

Eureka New400 Wet/Dry Vacuum Review

The Tech Advisor review highlights the Eureka NEW400 as a highly maneuverable, 8.7-pound, and competitively priced cordless wet/dry vacuum with a 600rpm self-propelled brush, auto-water distribution, and effective, streak-free cleaning. While offering excellent, low-effort cleaning, the vacuum is limited by a short runtime on high mode, a non-replaceable battery with a long 3-6 hour charge time, and a lack of a specialized dry-only mode, according to the review.

the-gadgeteer.com

04/01/2024

Summary of the review

Eureka New400 cordless wet dry vacuum cleaner review

The Gadgeteer review praises the Eureka NEW400 Cordless Wet/Dry Vacuum Cleaner for its self-propelled, easy-to-maneuver design, high-efficiency dual-tank system with a 90% water recovery rate, and convenient one-touch self-cleaning cycle. While efficient on sealed hard floors, the vacuum is limited by a 20-30 minute battery runtime, which restricts its use for larger, continuous cleaning tasks.

lavelab.com

08/10/2024

Summary of the review

Eureka NEW400 Review - Our Honest Opinion - Lavelab

The Lavelab review of the Eureka NEW400 highlights satisfactory, cost-effective cleaning performance and effective scrubbing with the included solution, alongside a reasonable operating noise level. However, the tester cites significant drawbacks, including a brush head that easily traps hair, an ineffective self-cleaning function, and a limited battery runtime unsuitable for large areas.

lavelab.com

08/10/2024

Summary of the review

Eureka NEW400 Review - Lavelab

The Lavelab review of the Eureka New400 budget cordless floor washer highlights strong performance in daily cleaning, featuring a dual-tank system and a 60-second self-cleaning cycle. Its lightweight, self-propelled design makes it easy to use, though the unit is limited by a 30-minute runtime on low power that drops to only 10 minutes on high, coupled with a 5 to 6-hour charging time.

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