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Robot Vacuums Methodology v1.0
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Products in this category are scored under Frontum Robot Vacuums Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
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Hoover HG4 Robot Aspirador review: 118 specs compared

Avg. price:~£260Max suction power:4000 PaRuntime:120 minDustbin capacity:800 mLMax 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.

Hoover HG4 Robot Aspirador
7.2/10

Overall score

Score
7.2/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components

80%

7.2

Technical score

20%

6.9

User score

â–²Better than 51% of robot vacuums
7.8

Value for money

Value for money
7.8/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components

70%

7.2

Overall score

30%

9.2

Price

â–²Better than 60%
7.2

Technical score

Technical score
7.2/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components

30%

7.4

Cleaning

23%

8.0

Navigation

18%

6.7

Mopping

12%

4.7

Battery

10%

8.7

Smart Features

7%

7.2

Design

â–²Better than 55%
6.9

User score

User score
6.9/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components

70%

7.5

User ratings

30%

5.4

Number of reviews

Based on ratings from across the web.
â–¼Worse than 90%
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Where to buy
*As an Amazon Associate, we earn from qualifying purchases.
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of robot vacuum Hoover HG4 Robot Aspirador

Technical score
Technical score
7.2/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components:

30%

7.4

Cleaning

23%

8.0

Navigation

18%

6.7

Mopping

12%

4.7

Battery

10%

8.7

Smart Features

7%

7.2

Design

7.2
User score
User score
6.9/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components

70%

7.5

User ratings

30%

5.4

Number of reviews

Based on ratings from across the web.
6.9
Popularity
Popularity
5.4/ 10
✕
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.
Score distribution
â–¼
<55-66-77-88-99-10
Popularity:
Hoover HG4 Robot Aspirador has a popularity index of 5.4, lower than that of 59.8% of robot vacuums and equal to that of 0.8% of robot vacuums.
5.4
Value for money
Value for money
7.8/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
Score components:

70%

7.2

Overall score

30%

9.2

Price

7.8
Max suction power
4,000 Pa
This robot vacuum has a maximum suction pressure of 4,000 Pa, which is higher than 49.5% of robot vacuums and equal to 9.9% of robot vacuums.
N. of suction power levels
5
This robot vacuum has 5 suction power levels, which is more than 93.7% of robot vacuums offer and the same number as 6.1% of robot vacuums offer.
Motor type
brushless
This robot vacuum uses a brushless motor, a type that is generally more efficient than those used by 2.7% of robot vacuums and also used by 97.3% of robot vacuums.
Power
?
Cleaning modes
4
This robot vacuum offers 4 cleaning modes, which is more than 38.2% of robot vacuums offer and the same number as 47.5% of robot vacuums offer.
Show more
Mopping capability
yes
This robot vacuum can mop floors. 78.8% of robot vacuums offer this feature.
Mopping system type
static pad
This robot vacuum uses static pad for mopping. This system is more effective than those on 20.4% of robot vacuums and as effective as those on 46.3% of robot vacuums.
Mop pad type
semi-circular
Mop pad material
microfiber
Mop pressure
?
Show more
Primary navigation technology
LiDAR
This robot vacuum 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
yes
This robot vacuum maps the floor. 74% of robot vacuums offer this feature.
Real-time mapping
yes
This robot vacuum updates its map in real time. 68.5% of robot vacuums offer this feature.
Multiple map storage
no
This robot vacuum does not store multiple maps, although 56.6% of robot vacuums offer this feature.
Map editing
yes
This robot vacuum lets you edit maps. 63.8% of robot vacuums offer this feature.
Show more
App control
yes
This robot vacuum supports app control. 5.5% of robot vacuums support app control.
App name
HG Robots
Wi-Fi connectivity
yes
This robot vacuum supports Wi-Fi connectivity. 6.3% of robot vacuums support Wi-Fi connectivity.
Supported Wi-Fi bands
2.4 GHz
Bluetooth connectivity
yes
This robot vacuum supports Bluetooth connectivity. 35.5% of robot vacuums support Bluetooth connectivity.
Show more
Battery capacity
2,500 mAh
This robot vacuum has a battery capacity of 2,500 mAh, which is lower than 86.1% of robot vacuums and equal to 3% of robot vacuums.
Battery type
Li-ion
Battery voltage
14.4 V
Runtime
120 min
This robot vacuum runs for 120 min per charge, which is shorter than 57.6% of robot vacuums and equal to 19.8% of robot vacuums.
Recharge and resume
yes
This robot vacuum resumes cleaning after charging. 83.1% of robot vacuums offer this feature.
Show more
Shape
round
Height
99 mm
Width
325 mm
Length
325 mm
Weight
2.6 kg
This robot vacuum weighs 2.6 kg, making it lighter than 87.8% of robot vacuums and the same weight as 1.9% of robot vacuums.
Show more

Hoover HG4 Robot Aspirador vs the average robot vacuum

246810TotalBatteryDesignSmart FeaturesNavigationCleaningMopping
  • 400 mL larger dustbin
    This robot vacuum has a larger onboard dustbin than the average robot vacuum (800 mL vs 400 mL). The average robot vacuum has a dustbin capacity of 400 mL.
    800 mL vs 400 mL
  • Washes the mop with hot water
    This robot vacuum washes its mop with hot water at the base station, while the average robot vacuum does not. 13.4% of robot vacuums offer this.
  • 27.2% lighter
    This robot vacuum is lighter than the average robot vacuum (2.6 kg vs 3.57 kg). The average robot vacuum weighs 3.57 kg.
    2.6 kg vs 3.57 kg
  • 1.7 W lower standby power consumption
    This robot vacuum draws less power in standby than the average robot vacuum (0.3 W vs 2 W). The average robot vacuum draws 2 W in standby.
    0.3 W vs 2 W
  • 1 more suction power levels
    This robot vacuum offers more suction power levels than the average robot vacuum (5 vs 4). The average robot vacuum offers 4 suction power levels.
    5 vs 4
  • Supports cleaning solution
    This robot vacuum supports cleaning solution for mopping, while the average robot vacuum does not. 44.8% of robot vacuums support this.
  • 60 mL more onboard water capacity
    This robot vacuum has a larger onboard water tank than the average robot vacuum (300 mL vs 240 mL). The average robot vacuum's onboard water tank holds 240 mL.
    300 mL vs 240 mL
  • Newer model
    This robot vacuum was released in 2024, later than the average robot vacuum in 2023. The average release year for robot vacuums is 2023.
    2024 vs 2023
  • 1.7 W lower standby power consumption
    This robot vacuum draws less power in standby than the average robot vacuum (0.3 W vs 2 W). The average robot vacuum draws 2 W in standby.
    0.3 W vs 2 W
  • 27.2% lighter
    This robot vacuum is lighter than the average robot vacuum (2.6 kg vs 3.57 kg). The average robot vacuum weighs 3.57 kg.
    2.6 kg vs 3.57 kg
  • Newer model
    This robot vacuum was released in 2024, later than the average robot vacuum in 2023. The average release year for robot vacuums is 2023.
    2024 vs 2023
  • 400 mL larger dustbin
    This robot vacuum has a larger onboard dustbin than the average robot vacuum (800 mL vs 400 mL). The average robot vacuum has a dustbin capacity of 400 mL.
    800 mL vs 400 mL
  • 1 more suction power levels
    This robot vacuum offers more suction power levels than the average robot vacuum (5 vs 4). The average robot vacuum offers 4 suction power levels.
    5 vs 4
  • Washes the mop with hot water
    This robot vacuum washes its mop with hot water at the base station, while the average robot vacuum does not. 13.4% of robot vacuums offer this.
  • Supports cleaning solution
    This robot vacuum supports cleaning solution for mopping, while the average robot vacuum does not. 44.8% of robot vacuums support this.
  • 60 mL more onboard water capacity
    This robot vacuum has a larger onboard water tank than the average robot vacuum (300 mL vs 240 mL). The average robot vacuum's onboard water tank holds 240 mL.
    300 mL vs 240 mL
  • More basic obstacle avoidance
    This robot vacuum uses LiDAR for obstacle avoidance, while the average robot vacuum uses hybrid.
    LiDAR vs hybrid
  • Does not store multiple maps
    This robot vacuum does not store multiple maps, while the average robot vacuum stores multiple maps.
  • More basic filter
    This robot vacuum uses a EPA filter, while the average robot vacuum uses HEPA.
    EPA vs HEPA
  • 700 mAh smaller battery capacity
    This robot vacuum has a smaller battery capacity than the average robot vacuum (2,500 mAh vs 3,200 mAh). The average robot vacuum has a battery capacity of 3,200 mAh.
    2,500 mAh vs 3,200 mAh
  • 30 min shorter runtime
    This robot vacuum runs for less time per charge than the average robot vacuum (120 min vs 150 min). The average robot vacuum runs for 150 min.
    120 min vs 150 min
  • 60 m² smaller cleaning area
    This robot vacuum has a smaller maximum cleaning area than the average robot vacuum (120 m² vs 180 m²). The average robot vacuum has a maximum cleaning area of 180 m².
    120 m² vs 180 m²
  • 9 dB louder
    This robot vacuum has a higher reported cleaning noise level than the average robot vacuum (74 dB vs 65 dB). The average robot vacuum has a reported noise level of 65 dB.
    74 dB vs 65 dB
  • No accelerometer
    This robot vacuum does not have an accelerometer, while the average robot vacuum does. 93% of robot vacuums have this sensor.
  • 16.5% lower user score
    User score
    6.9/ 10
    ✕
    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 distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Hoover HG4 Robot Aspirador
    the average robot vacuum
    Hoover HG4 Robot Aspirador has a lower user score than the average robot vacuum (6.87 vs 8).
    6.87 vs 8
  • 700 mAh smaller battery capacity
    This robot vacuum has a smaller battery capacity than the average robot vacuum (2,500 mAh vs 3,200 mAh). The average robot vacuum has a battery capacity of 3,200 mAh.
    2,500 mAh vs 3,200 mAh
  • 30 min shorter runtime
    This robot vacuum runs for less time per charge than the average robot vacuum (120 min vs 150 min). The average robot vacuum runs for 150 min.
    120 min vs 150 min
  • 60 m² smaller cleaning area
    This robot vacuum has a smaller maximum cleaning area than the average robot vacuum (120 m² vs 180 m²). The average robot vacuum has a maximum cleaning area of 180 m².
    120 m² vs 180 m²
  • 9 dB louder
    This robot vacuum has a higher reported cleaning noise level than the average robot vacuum (74 dB vs 65 dB). The average robot vacuum has a reported noise level of 65 dB.
    74 dB vs 65 dB
  • More basic obstacle avoidance
    This robot vacuum uses LiDAR for obstacle avoidance, while the average robot vacuum uses hybrid.
    LiDAR vs hybrid
  • Does not store multiple maps
    This robot vacuum does not store multiple maps, while the average robot vacuum stores multiple maps.
  • No accelerometer
    This robot vacuum does not have an accelerometer, while the average robot vacuum does. 93% of robot vacuums have this sensor.
  • More basic filter
    This robot vacuum uses a EPA filter, while the average robot vacuum uses HEPA.
    EPA vs HEPA

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

T
trustedreviews.com
28/01/2025
Summary of the review
T
thereviewstudio.co.uk
22/11/2024
Summary of the review
T
telegraph.co.uk
05/06/2025
Summary of the review
Y
yours.co.uk
02/07/2025
Summary of the review
T
tg24.sky.it
24/07/2024
Summary of the review
D
dday.it
07/10/2024
Summary of the review

Third-party reviews

Based on ratings from across the web.
Reviews last updated: July 2026 · How we calculate this

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 don't like 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)

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.

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