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Bosch Serie 4 Flexxo BBH32101 Review | 52 Data compared

Avg. price:~£140Suction power (AW):?Battery runtime:50 minutesCapacity:0.4 LWeight:3 kg

Bosch Serie 4 Flexxo BBH32101 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.

6.9

Overall score

Score
6.9/ 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–² Better than 54% of models
Score components

80%

6.5

Technical Score

20%

8.4

User score

â–²Better than 54% of vacuum-cleaners
6.5

Technical Score

Technical score
6.5/ 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 55% of models
Score components

28%

7.5

Performance

22%

6.0

Battery

18%

6.6

Filtration

14%

5.7

Attachments

10%

7.8

Design

8%

4.0

Smart features

â–¼Worse than 55% of vacuum-cleaners
8.4

User score

User score
8.4/ 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–² Better than 79% of models
Score components

70%

8.0

User ratings

30%

9.5

Number of reviews

Based on 2,646 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
â–²Better than 79% of vacuum-cleaners
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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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Verdict

The Bosch Serie 4 Flexxo BBH32101 is a 2-in-1 cordless stick and detachable handheld vacuum cleaner powered by a 21.6V lithium-ion battery, delivering a maximum runtime of up to 50 minutes with a 5-hour charge time. Weighing 3.0 kg, it features a bagless 0.4-litre dust container supported by the RobustAir system for sustained airflow, alongside a motorized AllFloor Power Brush and accessories integrated directly into the frame. Key advantages include its convenient self-standing design, excellent maneuverability under furniture due to a flexible nozzle joint, and seamless multi-surface cleaning. However, notable drawbacks include its relatively long 5-hour charging process, a lacks an LED floor light, and a small dust capacity that requires frequent emptying.

Technical Specifications of vacuum cleaner Bosch Serie 4 Flexxo BBH32101

Technical Score
Technical score
6.5/ 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 55% of models
Score components:

28%

7.5

Performance

22%

6.0

Battery

18%

6.6

Filtration

14%

5.7

Attachments

10%

7.8

Design

8%

4.0

Smart features

6.5
Bosch Serie 4 Flexxo BBH32101 has a technical score of 6.5 points, which is lower than 55.2% of vacuum cleaners.
User score
User score
8.4/ 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–² Better than 79% of models
Score components

70%

8.0

User ratings

30%

9.5

Number of reviews

Based on 2,646 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
8.4
Bosch Serie 4 Flexxo BBH32101 has a user score of 8.44 points, which is higher than 78.7% of vacuum cleaners.
Popularity
Popularity
9.5/ 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–² Better than 88% of models
Popularity:
Bosch Serie 4 Flexxo BBH32101 has a popularity score of 9.5 points, which is higher than 87.7% of vacuum cleaners.
9.5
Bosch Serie 4 Flexxo BBH32101 has a popularity score of 9.5 points, which is higher than 87.7% of vacuum cleaners.
Ratio quality/price
Value for money
7.8/ 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–² Better than 60% of models
Score components:

60%

6.9

Overall score

40%

9.8

Price

7.8
Bosch Serie 4 Flexxo BBH32101 has a value-for-money score of 7.8 points, which is higher than 60% of vacuum cleaners.
Suction power (AW)
?
Suction power (kPa)
?
Airflow
?
Motor type
longlife
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
50 minutes
Battery runtime
50 minutes
â–² Better than 50% of models
Market range: <30 minutes – >70 minutes
This vacuum cleaner offers a battery runtime of 50 minutes, which is longer than that of 49.7% of vacuum cleaners and equal to that of 7.5% 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
2000 mAh
Battery capacity
2000 mAh
â–¼ Worse than 80% of models
Market range: <2k mAh – >3.6k mAh
This vacuum cleaner has a battery capacity of 2000 mAh, which is smaller than that of 79.6% of vacuum cleaners and equal to that of 18.1% of vacuum cleaners.
Battery voltage
21.6 V
Battery voltage
21.6 V
â–¼ Worse than 60% of models
Market range: <18 V – >28.8 V
This vacuum cleaner uses a battery voltage of 21.6 V, which is lower than that of 59.8% of vacuum cleaners and equal to that of 16.5% of vacuum cleaners.
Show more
Filter class
hepa
Filter class
hepa
â–¼ Worse than 38% of models
This vacuum cleaner uses filter class hepa, which is more advanced than the class used by 16% of vacuum cleaners and the same as the class used by 46% of vacuum cleaners.
Minimum overall efficiency
99.97%
Minimum overall efficiency
99.97%
â–² Better than 59% of models
Market range: <95 % – >99.99 %
This vacuum cleaner reaches 99.97% minimum overall efficiency, which is higher than that of 59.1% of vacuum cleaners and equal to that of 19.4% of vacuum cleaners.
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
no
Nozzle light
no
â–¼ Worse than 43% of models
This vacuum cleaner does not include 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 BBH32101 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 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.
  • 0.02 % higher filtration efficiency
    Minimum overall efficiency
    99.97 %
    â–² Better than 59% of models
    Market range: <95 % – >99.99 %
    This vacuum cleaner has higher filtration efficiency than the average vacuum cleaner (100 % vs 99.95 %).
    99.97 % vs 99.95 %
  • 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
  • 5.5% higher user score
    User score
    8.4/ 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
    â–¼
    <55-66-77-88-99-10
    Bosch Serie 4 Flexxo BBH32101
    the average vacuum cleaner
    ★ Better than 91% of models
    Bosch Serie 4 Flexxo BBH32101 has a higher user score than the average vacuum cleaner (8.44 vs 8.000).
    8.44 vs 8
  • 5.5% higher user score
    User score
    8.4/ 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
    â–¼
    <55-66-77-88-99-10
    Bosch Serie 4 Flexxo BBH32101
    the average vacuum cleaner
    ★ Better than 91% of models
    Bosch Serie 4 Flexxo BBH32101 has a higher user score than the average vacuum cleaner (8.44 vs 8.000).
    8.44 vs 8
  • 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.
  • 0.02 % higher filtration efficiency
    Minimum overall efficiency
    99.97 %
    â–² Better than 59% of models
    Market range: <95 % – >99.99 %
    This vacuum cleaner has higher filtration efficiency than the average vacuum cleaner (100 % vs 99.95 %).
    99.97 % vs 99.95 %
  • 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
  • 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.
  • 500 mAh smaller battery capacity
    Battery capacity
    2000 mAh
    â–¼ Worse than 80% of models
    Market range: <2k mAh – >3.6k mAh
    This vacuum cleaner has a smaller battery capacity than the average vacuum cleaner (2000 mAh vs 2500 mAh).
    2,000 mAh vs 2,500 mAh
  • 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.
  • 0.6 V lower voltage
    Battery voltage
    21.6 V
    â–¼ Worse than 60% of models
    Market range: <18 V – >28.8 V
    This vacuum cleaner has a lower battery voltage than the average vacuum cleaner (21.6 V vs 22.2 V).
    21.6 V vs 22.2 V
  • Older release date
    Release date
    2019
    â–¼ Worse than 67% of models
    Market range: <2k – >2k
    This vacuum cleaner has an older release date than the average vacuum cleaner (2019 vs 2021).
    Released in August 2019.
    2019 vs 2021
  • 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
  • 500 mAh smaller battery capacity
    Battery capacity
    2000 mAh
    â–¼ Worse than 80% of models
    Market range: <2k mAh – >3.6k mAh
    This vacuum cleaner has a smaller battery capacity than the average vacuum cleaner (2000 mAh vs 2500 mAh).
    2,000 mAh vs 2,500 mAh
  • 0.6 V lower voltage
    Battery voltage
    21.6 V
    â–¼ Worse than 60% of models
    Market range: <18 V – >28.8 V
    This vacuum cleaner has a lower battery voltage than the average vacuum cleaner (21.6 V vs 22.2 V).
    21.6 V vs 22.2 V
  • 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.
  • 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
    2019
    â–¼ Worse than 67% of models
    Market range: <2k – >2k
    This vacuum cleaner has an older release date than the average vacuum cleaner (2019 vs 2021).
    Released in August 2019.
    2019 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 BBH32101 and other vacuum cleaners

No results found

Third-party reviews

Based on 2,646 buyer reviews from online shops.
Reviews last updated: July 2026 · How we calculate this
Read buyer reviews on Amazon →

What customers like about Bosch Serie 4 Flexxo BBH32101?

  • Lightweight design makes it easy to carry and ideal for stairs
  • Excellent maneuverability and smooth handling around corners
  • Convenient 2-in-1 functionality with a built-in detachable handheld unit
  • Integrated onboard tool storage keeps accessories close at hand
  • Good battery runtime on normal settings for quick daily cleaning
  • Attractive, sleek, and modern design

What customers dislike about Bosch Serie 4 Flexxo BBH32101?

  • Small dust bin capacity (0.4L) requires frequent emptying
  • Dust container and filter can be fiddly or difficult to clean and empty
  • Suction power may not be as efficient or powerful as a corded vacuum
  • The internal battery is not easily replaceable by the user
  • Certain plastic components and handles feel a bit flimsy or low-quality
  • Difficulty storing the extension tool back into its dedicated slot on the machine
  • Harder to vacuum flat or deep underneath low furniture due to the body shape

Expert reviews

In-depth analysis and verdict from leading tech publications

W
whichvac.com
Date unknown
Summary of the review
Bosch Flexxo Serie 4 Review – Tested at Home. Read the full review at WhichVac.

Video reviews

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

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