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Hoover HG4 Robot Aspirador Review | 118 Data compared

Avg. price in UK: ~£260
Avg. price in US: ~$330
Max suction power: 4000 Pa
Runtime: 120 min
Dustbin capacity: 800 mL
Max threshold height: 20 mm

Hoover HG4 Robot Aspirador 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.

6.9

Good

7.1

Very good

6.2

Good

5.6
Mopping
Score components:
35.0%
5.2
Mopping system type
25.0%
4.0
Mop lifting
20.0%
4.0
Auto water refill
20.0%
10
Water tank capacity
6.3
Pet homes
Score components:
35.0%
4.0
Anti-tangle technology
30.0%
4.7
Max suction power
20.0%
10
Carpet boost
15.0%
10
Dustbin capacity
6.5
Navigation and mapping
Score components:
30.0%
8.5
Primary navigation technology
30.0%
5.7
Obstacle avoidance technology
20.0%
1.0
Object recognition
20.0%
10
Real-time mapping

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Verdict

The Hoover HG4 is a compact 2-in-1 robot vacuum and mop featuring a 14.4V lithium battery that delivers up to 4000Pa of suction power, an 800ml dust bin (or 260ml dust plus 300ml water tank on Hydro models), and up to 120 minutes of runtime. Guided by advanced LiDAR laser navigation, it effortlessly maps an entire home layout via the HG Robots app in under 10 minutes and can climb obstacles up to 20mm, making it highly effective at clearing debris from both hard floors and carpets while operating quietly at 65 dBA. Main advantages include its rapid mapping, versatile multi-surface performance with a self-emptying base capability, and a space-saving dock design, though it can be loud when emptying into the base station and initial Wi-Fi app setup may feel slightly complex for non-tech-savvy users.

Technical Specifications of robot vacuum Hoover HG4 Robot Aspirador

Overall score

6.9

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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

7.3

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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

?

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

6.7

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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

semi-circular

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

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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Navigation

8.0

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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

8.7

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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

HG Robots

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

2.4 GHz

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

4.6

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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

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

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

5.5

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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

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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Hoover HG4 Robot Aspirador vs the average robot vacuum

Why is Hoover HG4 Robot Aspirador better than the average robot vacuum?

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400 mL larger dustbin
Hoover HG4 Robot Aspirador has a dustbin capacity of 800 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
Hoover HG4 Robot Aspirador has a dustbin capacity of 800 mL, compared with 400 mL for the average robot vacuum.800 mL vs 400 mL
Washes its mop with hot water
Hoover HG4 Robot Aspirador washes its mop with hot water, while the average robot vacuum does not wash its mop with hot water.
What it is: Hot-water washing uses heated water in the dock to clean the mop pads.
When it matters: It can loosen grease and residue more effectively than cold water, although temperature and wash cycle design matter.
Importance: LOW
Hoover HG4 Robot Aspirador washes its mop with hot water, while the average robot vacuum does not wash its mop with hot water.
0.93 kg lighter robot
Hoover HG4 Robot Aspirador weighs 2.6 kg, compared with 3.53 kg for the average robot vacuum.
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
Hoover HG4 Robot Aspirador weighs 2.6 kg, compared with 3.53 kg for the average robot vacuum.2.6 kg vs 3.53 kg
1.7 W lower standby use
Hoover HG4 Robot Aspirador uses 0.3 W in standby, compared with 2 W for the average robot vacuum.
What it is: Standby power consumption is the electricity used while the robot or dock is idle but connected to power.
When it matters: Lower standby use matters because the charging station normally remains plugged in all day.
Importance: LOW
Hoover HG4 Robot Aspirador uses 0.3 W in standby, compared with 2 W for the average robot vacuum.0.3 W vs 2 W
1 more suction levels
The number of suction levels on Hoover HG4 Robot Aspirador is 5, 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 Hoover HG4 Robot Aspirador is 5, compared with 4 on the average robot vacuum.5 vs 4
Supports cleaning solution
Hoover HG4 Robot Aspirador 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
Hoover HG4 Robot Aspirador supports cleaning solution, while the average robot vacuum does not support cleaning solution.
60 mL larger water tank
Hoover HG4 Robot Aspirador has a water tank capacity of 300 mL, compared with 240 mL for the average robot vacuum.
What it is: Water tank capacity is the amount of mopping water carried inside the robot.
When it matters: A larger tank can cover more hard floor before refilling, though dock-based automatic refill can reduce this limitation.
Importance: LOW
Hoover HG4 Robot Aspirador has a water tank capacity of 300 mL, compared with 240 mL for the average robot vacuum.300 mL vs 240 mL
15 mm shorter body
Hoover HG4 Robot Aspirador is 325 mm long, compared with 340 mm for the average robot vacuum.
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
Hoover HG4 Robot Aspirador is 325 mm long, compared with 340 mm for the average robot vacuum.325 mm vs 340 mm
1.7 W lower standby use
Hoover HG4 Robot Aspirador uses 0.3 W in standby, compared with 2 W for the average robot vacuum.
0.93 kg lighter robot
Hoover HG4 Robot Aspirador weighs 2.6 kg, compared with 3.53 kg for the average robot vacuum.
15 mm shorter body
Hoover HG4 Robot Aspirador is 325 mm long, compared with 340 mm for the average robot vacuum.
13.65 mm narrower body
Hoover HG4 Robot Aspirador is 325 mm wide, compared with 338.65 mm for the average robot vacuum.
400 mL larger dustbin
Hoover HG4 Robot Aspirador has a dustbin capacity of 800 mL, compared with 400 mL for the average robot vacuum.
1 more suction levels
The number of suction levels on Hoover HG4 Robot Aspirador is 5, compared with 4 on the average robot vacuum.
Washes its mop with hot water
Hoover HG4 Robot Aspirador washes its mop with hot water, while the average robot vacuum does not wash its mop with hot water.
Supports cleaning solution
Hoover HG4 Robot Aspirador supports cleaning solution, while the average robot vacuum does not support cleaning solution.
60 mL larger water tank
Hoover HG4 Robot Aspirador has a water tank capacity of 300 mL, compared with 240 mL for the average robot vacuum.

Why is Hoover HG4 Robot Aspirador worse than the average robot vacuum?

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700 mAh less battery capacity
Hoover HG4 Robot Aspirador 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.
30 min shorter runtime
Hoover HG4 Robot Aspirador runs for 120 min per charge, compared with 150 min for the average robot vacuum.
60 m² less cleaning coverage
Hoover HG4 Robot Aspirador can clean up to 120 m² per charge, compared with 180 m² for the average robot vacuum.
9 dB louder operation
Hoover HG4 Robot Aspirador produces 74 dB of noise, compared with 65 dB for the average robot vacuum.
5 mm taller body
Hoover HG4 Robot Aspirador is 99 mm tall, compared with 94 mm for the average robot vacuum.
More basic obstacle avoidance
Hoover HG4 Robot Aspirador uses LiDAR obstacle avoidance, while the average robot vacuum uses hybrid.
Does not store multiple maps
Hoover HG4 Robot Aspirador does not store multiple maps, while the average robot vacuum stores multiple maps.
Has no accelerometer
Hoover HG4 Robot Aspirador has no accelerometer, while the average robot vacuum has an accelerometer.
More basic filter
Hoover HG4 Robot Aspirador uses a EPA filter, while the average robot vacuum uses HEPA.
Priority source 2 supports EPA filter type.
More basic obstacle avoidance
Hoover HG4 Robot Aspirador uses LiDAR obstacle avoidance, while the average robot vacuum uses hybrid.
What it is: Obstacle avoidance technology uses sensors, cameras, LiDAR or structured light to detect objects and route around them.
When it matters: More capable systems reduce contact with cables, shoes, pet bowls and other clutter, so the robot needs fewer rescues.
Importance: HIGH
Hoover HG4 Robot Aspirador uses LiDAR obstacle avoidance, while the average robot vacuum uses hybrid.LiDAR vs hybrid
Does not store multiple maps
Hoover HG4 Robot Aspirador 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
Hoover HG4 Robot Aspirador does not store multiple maps, while the average robot vacuum stores multiple maps.
More basic filter
Hoover HG4 Robot Aspirador uses a EPA filter, while the average robot vacuum uses HEPA.
Priority source 2 supports EPA filter type.
What it is: Filter type identifies the filtration design used to capture fine particles in the exhaust air.
When it matters: Higher-grade, well-sealed filters are more relevant for allergy concerns, while washable and replaceable designs affect maintenance cost.
Importance: LOW
Hoover HG4 Robot Aspirador uses a EPA filter, while the average robot vacuum uses HEPA.EPA vs HEPA
700 mAh less battery capacity
Hoover HG4 Robot Aspirador 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.
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
Hoover HG4 Robot Aspirador has a battery capacity of 2,500 mAh, compared with 3,200 mAh for the average robot vacuum.2500 mAh vs 3200 mAh
30 min shorter runtime
Hoover HG4 Robot Aspirador runs for 120 min per charge, compared with 150 min for the average robot vacuum.
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
Hoover HG4 Robot Aspirador runs for 120 min per charge, compared with 150 min for the average robot vacuum.120 min vs 150 min
60 m² less cleaning coverage
Hoover HG4 Robot Aspirador can clean up to 120 m² per charge, compared with 180 m² for the average robot vacuum.
What it is: Maximum cleaning area is the largest floor area the robot is rated to cover in one cleaning task.
When it matters: It helps indicate whether the robot suits a large layout, although obstacles, power mode and mopping can reduce coverage.
Importance: LOW
Hoover HG4 Robot Aspirador can clean up to 120 m² per charge, compared with 180 m² for the average robot vacuum.120 m² vs 180 m²
9 dB louder operation
Hoover HG4 Robot Aspirador produces 74 dB of noise, compared with 65 dB for the average robot vacuum.
What it is: Noise level range shows the sound produced across the robot's operating modes.
When it matters: Lower noise is helpful for cleaning while people work, talk, sleep or remain at home with noise-sensitive pets.
Importance: LOW
Hoover HG4 Robot Aspirador produces 74 dB of noise, compared with 65 dB for the average robot vacuum.74 dB vs 65 dB
5 mm taller body
Hoover HG4 Robot Aspirador is 99 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
Hoover HG4 Robot Aspirador is 99 mm tall, compared with 94 mm for the average robot vacuum.99 mm vs 94 mm

Graphic comparison of Hoover HG4 Robot Aspirador and other robot vacuums

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Third-party reviews

United Kingdom

(Reviews last updated: July 2026)

What customers like about Hoover HG4 Robot Aspirador?

Effective vacuuming performance with good suction (up to 4000Pa)
Low cost and good value for money
Useful self-empty docking station
Good edge cleaning performance
Quiet operation compared to traditional vacuums
Easy to maintain and clean, with included accessories
Smart navigation that maps home layouts efficiently

What customers dislike about Hoover HG4 Robot Aspirador?

Very basic, entry-level mopping capability
Reliability issues with mapping and navigation, specifically losing maps
App connectivity/functionality issues, such as struggling to recognise rooms
Requires constant monitoring in some cases due to inconsistent settings
Difficult to use for multi-story homes (multi-map support issues)

Expert reviews

trustedreviews.com

28/01/2025

Summary of the review

Hoover HG4 Hydro Pro Review - Trusted Reviews

The Hoover HG4 Hydro Pro is a budget-friendly 2-in-1 robot vacuum and mop offering premium features, including 4,000 Pa suction, precise mapping, and a self-emptying base that supports 30 days of hands-free operation. While praised for performance at its price point, the unit is noted for a 64-decibel noise level, a small 240ml water tank requiring frequent refills, and limited effectiveness on thick, high-pile rugs. Additionally, real-world testing indicated the battery does not consistently meet the advertised three-hour runtime.

thereviewstudio.co.uk

22/11/2024

Summary of the review

Hoover Robot Vacuum Cleaner HG4 - The Review Studio

The Hoover HG4 Robot Vacuum Cleaner delivers impressive, efficient cleaning across hard floors and carpets, featuring effective edge sweeping and convenient app-controlled, room-specific power settings. While early navigation hiccups included getting tangled in shoelaces or stuck under furniture, these issues are easily resolved using the app’s virtual walls and no-go zones. Additional advantages include straightforward maintenance, a compact dustbin, and included spare parts.

telegraph.co.uk

05/06/2025

Summary of the review

Hoover HG4 Hydro robot vacuum and mop review - The Telegraph

The Telegraph's review of the Hoover HG4 Hydro highlights this mid-range 2-in-1 device as a budget-friendly option, praised for its excellent performance on hard floors, quiet operation, and effective app-based mapping. While it navigates obstacles well, the vacuum struggles with thick rugs, fails to reach tight corners, and requires manual switching between vacuuming and mopping modes. Additional drawbacks include a lengthy 4.5-hour charge time and a challenging initial Wi-Fi setup process.

yours.co.uk

02/07/2025

Summary of the review

HG4 Hydro Review: A mopping robot vac- but is it worth it? - Yours Magazine

The Hoover HG4 Hydro Robot Vacuum, rated 4.5/5 stars by Yours Magazine, offers excellent value with 4000Pa suction, quiet operation, and effective pet hair removal on hard floors and carpets. While praised for its dual vacuum-mop functionality, the review notes drawbacks including a complex initial setup, a 2cm limit on obstacle climbing, and a 0.8-litre dustbin that requires frequent emptying.

tg24.sky.it

24/07/2024

Summary of the review

Hoover HG4 Hydro Pro, the efficient and quiet cleaning robot

The Sky TG24 review identifies the Hoover HG4 Hydro Pro as an affordable, effective 2-in-1 robot vacuum and mop offering strong 4000 Pa suction, precise Lidar navigation, and a 120-minute battery life. While efficient for daily cleaning, the device lacks advanced scrubbing technology, occasionally makes aggressive contact with obstacles, and misses high-end smart features.

dday.it

07/10/2024

Summary of the review

Hoover HG4 HYDRO PRO Review: A Basic Robot Vacuum That Gets the Job Done

The Hoover HG4 Hydro Pro is a reliable, entry-level 2-in-1 robot vacuum that efficiently handles everyday cleaning basics with strong suction, fast laser navigation, and a 60-day self-emptying station. However, it is limited by a rudimentary mopping function for light stains only, a buggy companion app map editor, and an aggressive approach when bumping into household objects.

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