OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS

Bosch Serie 4 Flexxo BBH3ALL28 Review | 52 Data compared

Avg. price:~£140Suction power (AW):?Battery runtime:55 minutesCapacity:0.4 LWeight:3 kg

Bosch Serie 4 Flexxo BBH3ALL28 Review: Compare 52 technical specifications and user reviews to see how this product ranks in the Vacuum Cleaners category and whether it is worth buying.

6.4

Overall score

Score
6.4/ 10
✕
What it is
An overall evaluation of the vacuum cleaner's quality, based on technical analysis and user reviews.
When it matters
When you need a quick reference for identifying the best vacuum cleaners on the market.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 76% of models
Score components

80%

6.4

Technical Score

20%

?

User score

â–¼Worse than 76% of vacuum-cleaners
6.4

Technical Score

Technical score
6.4/ 10
✕
What it is
An assessment of the vacuum cleaner's technical performance across six key areas: performance, battery and power supply, filtration, attachments, design, and smart features.
When it matters
When you want to compare vacuum cleaners by cleaning performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 60% of models
Score components

28%

6.0

Performance

22%

7.6

Battery

18%

5.9

Filtration

14%

5.7

Attachments

10%

7.7

Design

8%

5.2

Smart features

â–¼Worse than 60% of vacuum-cleaners
?

User score

User score
8.0/ 10
✕
What it is
A rating that combines user reviews with the total number of reviews received by the vacuum cleaner.
When it matters
When you want to know how a vacuum cleaner performs in everyday use and how reliable owners find it over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 73% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

  • No image
No image

Best prices

    N/A~ £140
*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.
Loading category ranking...

Verdict

The Bosch Serie 4 Flexxo BBH3ALL28 is a bagless, 2-in-1 cordless upright and detachable handheld vacuum cleaner powered by a 25.2V lithium-ion battery. It features a motorized AllFloor brush bar with integrated LED lighting, two power speed settings, a 0.4-litre easy-empty dust container, and an onboard accessory storage design holding an extendable crevice nozzle and a 2-in-1 furniture brush with an upholstery nozzle. Key advantages include a lightweight 3 kg freestanding body, a long runtime of up to 55 minutes, and a RobustAir system that ensures constant suction performance even as the bin fills up. However, notable drawbacks include a relatively small 0.4L bin capacity that requires frequent emptying, a long 5-hour charging time, and a loud 82 dB operational noise level.

Technical Specifications of vacuum cleaner Bosch Serie 4 Flexxo BBH3ALL28

Technical Score
Technical score
6.4/ 10
✕
What it is
An assessment of the vacuum cleaner's technical performance across six key areas: performance, battery and power supply, filtration, attachments, design, and smart features.
When it matters
When you want to compare vacuum cleaners by cleaning performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 60% of models
Score components:

28%

6.0

Performance

22%

7.6

Battery

18%

5.9

Filtration

14%

5.7

Attachments

10%

7.7

Design

8%

5.2

Smart features

6.4
Bosch Serie 4 Flexxo BBH3ALL28 has a technical score of 6.4 points, which is lower than 60.4% of vacuum cleaners.
User score
User score
8.0/ 10
✕
What it is
A rating that combines user reviews with the total number of reviews received by the vacuum cleaner.
When it matters
When you want to know how a vacuum cleaner performs in everyday use and how reliable owners find it over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 73% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

?
Popularity
Popularity
1.0/ 10
✕
What it is
An indicator based on the number of reviews received by the vacuum cleaner.
When it matters
When you prefer a vacuum cleaner that has been chosen and reviewed by many other buyers.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 99% of models
Popularity:
Bosch Serie 4 Flexxo BBH3ALL28 has a popularity score of 1 point, which is lower than 61.7% of vacuum cleaners.
1.0
Bosch Serie 4 Flexxo BBH3ALL28 has a popularity score of 1 point, which is lower than 61.7% of vacuum cleaners.
Ratio quality/price
Value for money
7.4/ 10
✕
What it is
An indicator that combines the vacuum cleaner's overall score with its price.
When it matters
When you are looking for a vacuum cleaner with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 79% of models
Score components:

60%

6.4

Overall score

40%

9.8

Price

7.4
Bosch Serie 4 Flexxo BBH3ALL28 has a value-for-money score of 7.4 points, which is lower than 69.9% of vacuum cleaners.
Suction power (AW)
?
Suction power (kPa)
2.2 kPa
Suction power (kPa)
2.2 kPa
â–¼ Worse than 100% of models
Market range: <11 kPa – >30 kPa
This vacuum cleaner has a suction pressure of 2.2 kPa, which is lower than that of 100% of vacuum cleaners.
Airflow
?
Motor type
brushed
Power consumption
?
Show more
Cordless
yes
Cordless
yes
â–² Better than 51% of models
This vacuum cleaner works cordlessly. 49.5% of vacuum cleaners offer cordless operation.
Battery runtime
55 minutes
Battery runtime
55 minutes
â–² Better than 57% of models
Market range: <30 minutes – >70 minutes
This vacuum cleaner offers a battery runtime of 55 minutes, which is longer than that of 57.4% of vacuum cleaners and equal to that of 4.9% of vacuum cleaners.
Charging time
5 hours
Charging time
5 hours
â–¼ Worse than 74% of models
Market range: <3 hours – >5 hours
This vacuum cleaner charges in 5 hours, which is slower than 73.8% of vacuum cleaners and equal to 20.4% of vacuum cleaners.
Battery capacity
?
Battery voltage
25.2 V
Battery voltage
25.2 V
â–² Better than 56% of models
Market range: <18 V – >28.8 V
This vacuum cleaner uses a battery voltage of 25.2 V, which is higher than that of 56.5% of vacuum cleaners and equal to that of 23.5% of vacuum cleaners.
Show more
Filter class
washable filter
Filter class
washable filter
â–¼ Worse than 89% of models
This vacuum cleaner uses filter class washable filter, which is less advanced than the class used by 89.3% of vacuum cleaners and the same as the class used by 1.3% of vacuum cleaners.
Minimum overall efficiency
?
Suitable for allergy sufferers
no
Suitable for allergy sufferers
no
â–¼ Worse than 83% of models
This vacuum cleaner is not suitable for allergy sufferers. 82.4% of vacuum cleaners are allergy-friendly.
Capacity
0.4 L
Capacity
0.4 L
â–¼ Worse than 91% of models
Market range: <0.44 L – >4 L
This vacuum cleaner has a dust capacity of 0.4 L, which is smaller than that of 90.7% of vacuum cleaners and equal to that of 4.5% of vacuum cleaners.
Bagless
yes
Bagless
yes
â–² Better than 21% of models
This vacuum cleaner uses a bagless design. 78.6% of vacuum cleaners use this setup.
Show more
Main brush type
roll brush
Roller type
bristled
Anti-tangle brush
no
Anti-tangle brush
no
â–¼ Worse than 26% of models
This vacuum cleaner does not include an anti-tangle brush. 25.7% of vacuum cleaners include this feature.
Mini motorized brush
no
Mini motorized brush
no
â–¼ Worse than 27% of models
This vacuum cleaner does not include a mini motorized brush. 26.9% of vacuum cleaners include this attachment.
Suitable for pet owners
no
Suitable for pet owners
no
â–¼ Worse than 72% of models
This vacuum cleaner is not suitable for pet owners. 72% of vacuum cleaners handle pet hair well.
Show more
Vacuum type
stick
Weight
3 kg
Weight
3 kg
â–² Better than 61% of models
Market range: <2.15 kg – >7.1 kg
This vacuum cleaner weighs 3 kg, which is lower than the weight of 61% of vacuum cleaners and equal to that of 3.1% of vacuum cleaners.
2-in-1 design
yes
2-in-1 design
yes
â–² Better than 47% of models
This vacuum cleaner offers a 2-in-1 design. 53% of vacuum cleaners offer this flexible format.
Self-standing
yes
Self-standing
yes
â–² Better than 81% of models
This vacuum cleaner stands on its own. 18.9% of vacuum cleaners offer this convenience.
Adjustable tube height
no
Adjustable tube height
no
â–¼ Worse than 47% of models
This vacuum cleaner does not include adjustable tube height. 47.4% of vacuum cleaners offer this ergonomic feature.
Show more
Auto suction adjustment
no
Auto suction adjustment
no
â–¼ Worse than 20% of models
This vacuum cleaner does not support automatic suction adjustment. 19.9% of vacuum cleaners support this feature.
Dust particle sensor
no
Dust particle sensor
no
â–¼ Worse than 8% of models
This vacuum cleaner does not include a dust particle sensor. 8% of vacuum cleaners include this feature.
LED display
no
LED display
no
â–¼ Worse than 26% of models
This vacuum cleaner does not include an LED display. 25.9% of vacuum cleaners include this interface feature.
Nozzle light
yes
Nozzle light
yes
â–² Better than 57% of models
This vacuum cleaner includes a nozzle light. 43.4% of vacuum cleaners include this visibility feature.
Mopping support
no
Mopping support
no
â–¼ Worse than 4% of models
This vacuum cleaner does not support mopping. 3.7% of vacuum cleaners support this multi-function feature.

Bosch Serie 4 Flexxo BBH3ALL28 vs the average vacuum cleaner

246810TotalPerformanceBatteryFiltrationAttachmentsDesignSmart features
  • Cordless operation
    Cordless
    yes
    â–² Better than 51% of models
    This vacuum cleaner works cordlessly, the average vacuum cleaner does not.
  • Self-standing design
    Self-standing
    yes
    â–² Better than 81% of models
    This vacuum cleaner stands on its own, the average vacuum cleaner does not.
  • Includes nozzle light
    Nozzle light
    yes
    â–² Better than 57% of models
    This vacuum cleaner includes a nozzle light, the average vacuum cleaner does not.
  • Includes battery indicator
    Battery level indicator
    yes
    â–² Better than 53% of models
    This vacuum cleaner includes a battery level indicator, the average vacuum cleaner does not.
  • 6 minutes longer turbo runtime
    Turbo mode runtime
    18 minutes
    â–² Better than 81% of models
    Market range: <6 minutes – >20 minutes
    This vacuum cleaner offers longer turbo runtime than the average vacuum cleaner (18 minutes vs 12 minutes).
    18 minutes vs 12 minutes
  • 32 mm wider cleaning path
    Cleaning path width
    292 mm
    â–² Better than 82% of models
    Market range: <230 mm – >309 mm
    This vacuum cleaner has a wider cleaning path than the average vacuum cleaner (292 mm vs 260 mm).
    292 mm vs 260 mm
  • 85 mm shallower body
    Depth
    180 mm
    â–² Better than 87% of models
    Market range: <170 mm – >440 mm
    This vacuum cleaner is less deep than the average vacuum cleaner (180 mm vs 265 mm).
    180 mm vs 265 mm
  • 3 V higher voltage
    Battery voltage
    25.2 V
    â–² Better than 56% of models
    Market range: <18 V – >28.8 V
    This vacuum cleaner has a higher battery voltage than the average vacuum cleaner (25.2 V vs 22.2 V).
    25.2 V vs 22.2 V
  • 32 mm wider cleaning path
    Cleaning path width
    292 mm
    â–² Better than 82% of models
    Market range: <230 mm – >309 mm
    This vacuum cleaner has a wider cleaning path than the average vacuum cleaner (292 mm vs 260 mm).
    292 mm vs 260 mm
  • Cordless operation
    Cordless
    yes
    â–² Better than 51% of models
    This vacuum cleaner works cordlessly, the average vacuum cleaner does not.
  • Includes battery indicator
    Battery level indicator
    yes
    â–² Better than 53% of models
    This vacuum cleaner includes a battery level indicator, the average vacuum cleaner does not.
  • 6 minutes longer turbo runtime
    Turbo mode runtime
    18 minutes
    â–² Better than 81% of models
    Market range: <6 minutes – >20 minutes
    This vacuum cleaner offers longer turbo runtime than the average vacuum cleaner (18 minutes vs 12 minutes).
    18 minutes vs 12 minutes
  • 3 V higher voltage
    Battery voltage
    25.2 V
    â–² Better than 56% of models
    Market range: <18 V – >28.8 V
    This vacuum cleaner has a higher battery voltage than the average vacuum cleaner (25.2 V vs 22.2 V).
    25.2 V vs 22.2 V
  • 5 minutes longer runtime
    Battery runtime
    55 minutes
    â–² Better than 57% of models
    Market range: <30 minutes – >70 minutes
    This vacuum cleaner offers longer battery runtime than the average vacuum cleaner (55 minutes vs 50 minutes).
    55 minutes vs 50 minutes
  • Self-standing design
    Self-standing
    yes
    â–² Better than 81% of models
    This vacuum cleaner stands on its own, the average vacuum cleaner does not.
  • 85 mm shallower body
    Depth
    180 mm
    â–² Better than 87% of models
    Market range: <170 mm – >440 mm
    This vacuum cleaner is less deep than the average vacuum cleaner (180 mm vs 265 mm).
    180 mm vs 265 mm
  • 17.1% lower weight
    Weight
    3 kg
    â–² Better than 61% of models
    Market range: <2.15 kg – >7.1 kg
    This vacuum cleaner is lighter than the average vacuum cleaner (3 kg vs 3.62 kg).
    3 kg vs 3.62 kg
  • Includes nozzle light
    Nozzle light
    yes
    â–² Better than 57% of models
    This vacuum cleaner includes a nozzle light, the average vacuum cleaner does not.
  • 17.8 kPa lower suction pressure
    Suction power (kPa)
    2.2 kPa
    â–¼ Worse than 100% of models
    Market range: <11 kPa – >30 kPa
    This vacuum cleaner has lower suction pressure than the average vacuum cleaner (2.2 kPa vs 20 kPa).
    2.2 kPa vs 20 kPa
  • More operating noise
    Noise level (Min-Max)
    82-82 dB
    â–¼ Worse than 80% of models
    Market range: <65 dB – >83 dB
    This vacuum cleaner is noisier than the average vacuum cleaner (82-82 dB vs 77-77 dB).
    82-82 dB vs 77-77 dB
  • 0.6 L smaller dust container
    Capacity
    0.4 L
    â–¼ Worse than 91% of models
    Market range: <0.44 L – >4 L
    This vacuum cleaner has a smaller dust capacity than the average vacuum cleaner (0.4 L vs 1 L).
    0.4 L vs 1 L
  • 1 hours slower charging
    Charging time
    5 hours
    â–¼ Worse than 74% of models
    Market range: <3 hours – >5 hours
    This vacuum cleaner charges slower than the average vacuum cleaner (5 hours vs 4 hours).
    5 hours vs 4 hours
  • Not pet-hair friendly
    Suitable for pet owners
    no
    â–¼ Worse than 72% of models
    This vacuum cleaner is not suitable for pet owners, the average vacuum cleaner is.
  • Not allergy-friendly
    Suitable for allergy sufferers
    no
    â–¼ Worse than 83% of models
    This vacuum cleaner is not suitable for allergy sufferers, the average vacuum cleaner is.
  • Lower filter class
    Filter class
    washable filter
    â–¼ Worse than 89% of models
    This vacuum cleaner uses a lower filter class than the average vacuum cleaner (washable filter vs hepa).
    washable filter vs hepa
  • Older release date
    Release date
    2018
    â–¼ Worse than 77% of models
    Market range: <2k – >2k
    This vacuum cleaner has an older release date than the average vacuum cleaner (2018 vs 2021).
    2018 vs 2021
  • 3.1% worse value for money
    Bosch Serie 4 Flexxo BBH3ALL28 offers worse value for money than the average vacuum cleaner (7.42 vs 7.6).
    7.42 vs 7.65
  • 17.8 kPa lower suction pressure
    Suction power (kPa)
    2.2 kPa
    â–¼ Worse than 100% of models
    Market range: <11 kPa – >30 kPa
    This vacuum cleaner has lower suction pressure than the average vacuum cleaner (2.2 kPa vs 20 kPa).
    2.2 kPa vs 20 kPa
  • More operating noise
    Noise level (Min-Max)
    82-82 dB
    â–¼ Worse than 80% of models
    Market range: <65 dB – >83 dB
    This vacuum cleaner is noisier than the average vacuum cleaner (82-82 dB vs 77-77 dB).
    82-82 dB vs 77-77 dB
  • 1 hours slower charging
    Charging time
    5 hours
    â–¼ Worse than 74% of models
    Market range: <3 hours – >5 hours
    This vacuum cleaner charges slower than the average vacuum cleaner (5 hours vs 4 hours).
    5 hours vs 4 hours
  • 0.6 L smaller dust container
    Capacity
    0.4 L
    â–¼ Worse than 91% of models
    Market range: <0.44 L – >4 L
    This vacuum cleaner has a smaller dust capacity than the average vacuum cleaner (0.4 L vs 1 L).
    0.4 L vs 1 L
  • Not allergy-friendly
    Suitable for allergy sufferers
    no
    â–¼ Worse than 83% of models
    This vacuum cleaner is not suitable for allergy sufferers, the average vacuum cleaner is.
  • Lower filter class
    Filter class
    washable filter
    â–¼ Worse than 89% of models
    This vacuum cleaner uses a lower filter class than the average vacuum cleaner (washable filter vs hepa).
    washable filter vs hepa
  • Not pet-hair friendly
    Suitable for pet owners
    no
    â–¼ Worse than 72% of models
    This vacuum cleaner is not suitable for pet owners, the average vacuum cleaner is.
  • Older release date
    Release date
    2018
    â–¼ Worse than 77% of models
    Market range: <2k – >2k
    This vacuum cleaner has an older release date than the average vacuum cleaner (2018 vs 2021).
    2018 vs 2021
  • 50 mm taller body
    Height
    1,150 mm
    â–¼ Worse than 70% of models
    Market range: <290 mm – >1.2k mm
    This vacuum cleaner is taller than the average vacuum cleaner (1150 mm vs 1100 mm).
    1,150 mm vs 1,100 mm

Graphic comparison of Bosch Serie 4 Flexxo BBH3ALL28 and other vacuum cleaners

No results found

Third-party reviews

What customers like about Bosch Serie 4 Flexxo BBH3ALL28?

  • Integrated accessories (crevice nozzle, dusting brush) are stored directly on the device for easy access
  • Long battery runtime of up to 55 minutes using Lithium-Ion Technology
  • Versatile 2-in-1 design allows for use as an upright stick vacuum or a detachable handheld unit
  • Self-standing feature makes it easy to store and take breaks during cleaning
  • Effective on both carpets and hard floors with a removable brush roll for easy cleaning

What customers dislike about Bosch Serie 4 Flexxo BBH3ALL28?

  • Suction power may be less powerful than corded alternatives for heavy duty cleaning
  • Relatively small dust container requires frequent emptying
  • The vacuum can feel heavy during extended handheld use
  • Charging time can be long compared to the runtime

Expert reviews

In-depth analysis and verdict from leading tech publications

W
whichvac.com
N/A
Summary of the review
Bosch Flexxo Serie 4 Review – Tested at Home - which vac?
Q
quel-aspirateurs.fr
18/05/2025
Summary of the review
Bosch Series 4 Bbh3All28 Vacuum Cleaner Review & Test
(Translated)Show original
B
bosch-home.es
31/07/2026
Summary of the review
BBH3ALL28 Cordless vacuum cleaner | Bosch Home Appliances
(Translated)Show original
O
ocu.org
31/07/2026
Summary of the review
BOSCH BBH3ALL28 Flexxo 2in1: Reviews - OCU
(Translated)Show original
A
altroconsumo.it
N/A
Summary of the review
BOSCH BBH3ALL28 Flexxo Cordless Vacuum Cleaner, Test and Review
(Translated)Show original
C
consumentenbond.nl
01/09/2021
Summary of the review
Bosch BBH3ALL28 Flexxo 2-in-1 - Test, Reviews & Prices
(Translated)Show original

Video reviews

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

Compare Bosch Serie 4 Flexxo BBH3ALL28 with other vacuum cleaners

1Product to compare no. 1
VS
2Product to compare no. 2
VS
3Product to compare no. 3 (optional)