Bosch BBH3K2801 Review | 52 Data compared

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  • Avg. price in UK: ~£130
  • Avg. price in US: ~$160
  • Suction power (AW): ?
  • Battery runtime: 55 minutes
  • Capacity: 0.4 L
  • Weight: 3 kg

Bosch BBH3K2801 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.

7.2

Overall score

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 components:

80.0%

7.0

Technical Score

20.0%

7.9

User score

Very good
7.0

Technical Score

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 components:

28.0%

8.1

Performance

22.0%

6.6

Battery

18.0%

6.1

Filtration

14.0%

7.1

Attachments

10.0%

7.8

Design

8.0%

5.2

Smart features

Very good
7.9

User score

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 components:

70.0%

8.4

User reviews

30.0%

6.7

Popularity

User score:
United Kingdom
amazon
4.2
(185)
United States
Amazon_logo.png
4.2
(188)

(Reviews last updated: July 2026)

Very good
  • 5.6
    Hard floors

    Score components:

    30.0%

    4.0

    Mopping support

    25.0%

    8.8

    Weight

    20.0%

    5.4

    Noise level (Min-Max)

    15.0%

    2.3

    Capacity

    10.0%

    7.3

    Power consumption

  • 4.3
    Pet homes

    Score components:

    30.0%

    4.0

    Mini motorized brush

    25.0%

    4.0

    Anti-tangle brush

    20.0%

    2.3

    Capacity

    15.0%

    5.4

    Noise level (Min-Max)

    10.0%

    8.8

    Weight

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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.

Verdict

The Bosch Serie 4 Flexxo Gen2 BBH3K2801 is a 2-in-1 cordless stick vacuum featuring a 25.2V lithium-ion battery, an integrated handheld unit, and a 0.4-litre bagless dust container. Key advantages include a generous runtime of up to 55 minutes, convenient onboard accessory storage built directly into the handle, an LED-illuminated motorized floor nozzle, and a freestanding design that stores upright without a wall mount. However, major drawbacks include a lengthy 5-hour charge time, a relatively heavy weight of around 3 kg, and a small dustbin capacity that requires frequent emptying.

Technical Specifications of vacuum cleaner Bosch BBH3K2801

Technical Score

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 components:

28.0%

8.1

Performance

22.0%

6.6

Battery

18.0%

6.1

Filtration

14.0%

7.1

Attachments

10.0%

7.8

Design

8.0%

5.2

Smart features

7.0
Bosch BBH3K2801 has a technical score of 7.02 points, which is higher than 55.9% of vacuum cleaners.
User score

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 components:

70.0%

8.4

User reviews

30.0%

6.7

Popularity

User score:
United Kingdom
amazon
4.2
(185)
United States
Amazon_logo.png
4.2
(188)

(Reviews last updated: July 2026)

7.9
Bosch BBH3K2801 has a user score of 7.9 points, which is lower than 78.8% of vacuum cleaners.
Popularity
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.
6.7
Bosch BBH3K2801 has a popularity of 6.7 points, which is higher than 56.9% of products in this category.
Ratio quality/price

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 components:

60.0%

7.2

Overall score

40.0%

9.8

Price

8.0
Bosch BBH3K2801 has a quality-to-price ratio of 8 points, which is higher than 58.1% of products in this category.
Suction power (AW)
What it is: A measure of usable suction output in air watts, combining airflow and pressure into one cleaning-power figure.
When it matters: When you want the clearest single number for overall cleaning power on carpets and stubborn debris.

Importance: HIGH

?
Suction power (kPa)
What it is: The maximum suction pressure the vacuum can generate, expressed in kilopascals.
When it matters: When you compare how strongly different vacuums can pull dirt from seams, rugs, and tight surfaces.

Importance: HIGH

?
Airflow
What it is: The volume of air the vacuum moves during operation, which helps indicate how effectively debris can be carried into the dust container.
When it matters: When you want better pickup of lighter debris such as dust, crumbs, and hair across larger floor areas.

Importance: HIGH

?
Motor type
What it is: The motor design used to drive suction, such as brushless or universal construction.
When it matters: When you care about motor durability, efficiency, and how modern the vacuum drive system is.

Importance: LOW

?
Power consumption
What it is: The amount of electrical power the vacuum draws while operating, measured in watts.
When it matters: When you want to limit electricity use or compare efficiency between vacuums with similar cleaning power.

Importance: LOW

425 W
Bosch BBH3K2801 draws 425 W, which is lower than the power consumption of 65% of vacuum cleaners and equal to that of 0.8% of vacuum cleaners.
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Cordless
What it is: Indicates whether the vacuum can run without being connected to a power cable.
When it matters: When you want to move quickly between rooms, stairs, or cars without trailing a power cord.

Importance: MEDIUM

yes
Bosch BBH3K2801 works cordlessly. 49.6% of vacuum cleaners offer cordless operation.
Battery runtime
What it is: The maximum operating time the vacuum can deliver on a full charge in standard use.
When it matters: When you want to finish your normal cleaning routine on one charge.

Importance: HIGH

55 minutes
Bosch BBH3K2801 offers a battery runtime of 55 minutes, which is longer than that of 57.3% of vacuum cleaners and equal to that of 5% of vacuum cleaners.
Charging time
What it is: The time required to recharge the battery from empty to full.
When it matters: When you need the vacuum ready again quickly after a short cleaning session.

Importance: MEDIUM

5 hours
Bosch BBH3K2801 charges in 5 hours, which is slower than 73.6% of vacuum cleaners and equal to 20.5% of vacuum cleaners.
Battery capacity
What it is: The total amount of energy or charge the battery can store before recharging is needed.
When it matters: When you want a rough idea of how much stored energy the battery pack holds.

Importance: MEDIUM

2000 mAh
Bosch BBH3K2801 has a battery capacity of 2000 mAh, which is smaller than that of 79.3% of vacuum cleaners and equal to that of 18.5% of vacuum cleaners.
Battery voltage
What it is: The nominal electrical voltage supplied by the battery pack.
When it matters: When you compare cordless models and want another clue about battery system strength.

Importance: LOW

25.2 V
Bosch BBH3K2801 uses a battery voltage of 25.2 V, which is higher than that of 56.3% of vacuum cleaners and equal to that of 23.6% of vacuum cleaners.
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Filter class
What it is: The filtration standard or class used to describe how finely the vacuum filters outgoing air.
When it matters: When you care about capturing finer dust and keeping the exhaust air cleaner.

Importance: MEDIUM

washable filter
Bosch BBH3K2801 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
What it is: The minimum particle retention efficiency implied by the stated filter grade.
When it matters: When you want a clearer view of how much fine particulate the filter grade can block at minimum.

Importance: MEDIUM

?
Suitable for allergy sufferers
What it is: Indicates whether the filtration setup is strong enough to make the vacuum more appropriate for allergy-sensitive homes.
When it matters: When someone at home reacts badly to dust and you want a safer filtration setup.

Importance: MEDIUM

no
Bosch BBH3K2801 is not suitable for allergy sufferers. 82.4% of vacuum cleaners are allergy-friendly.
Capacity
What it is: The amount of dust or debris the container or bag can hold before it needs to be emptied or replaced.
When it matters: When you want to empty the dust container less often during bigger cleaning jobs.

Importance: MEDIUM

0.4 L
Bosch BBH3K2801 has a dust capacity of 0.4 L, which is smaller than that of 90.6% of vacuum cleaners and equal to that of 4.5% of vacuum cleaners.
Bagless
What it is: Indicates whether the vacuum collects dirt in a reusable dust container instead of disposable bags.
When it matters: When you prefer not to buy replacement bags and want to empty a reusable bin instead.

Importance: LOW

yes
Bosch BBH3K2801 uses a bagless design. 78.6% of vacuum cleaners use this setup.
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Main brush type
What it is: The construction style of the main floor brush that makes primary contact with the surface being cleaned.
When it matters: When you need the floor head design to match your mix of carpets and hard floors.

Importance: LOW

roll brush
Roller type
What it is: The roller material or profile used to move across the floor and lift debris.
When it matters: When you want the contact surface to suit delicate floors, embedded dirt, or hair pickup better.

Importance: LOW

?
Anti-tangle brush
What it is: A brush design intended to reduce hair wrapping and tangling around the roller.
When it matters: When long hair regularly wraps around the brush and you want less manual cleaning.

Importance: LOW

no
Bosch BBH3K2801 does not include an anti-tangle brush. 25.7% of vacuum cleaners include this feature.
Mini motorized brush
What it is: A small powered cleaning head intended for upholstery, stairs, and concentrated dirt or pet hair.
When it matters: When you clean sofas, stairs, or pet beds where a powered small head works better than a standard nozzle.

Importance: LOW

no
Bosch BBH3K2801 does not include a mini motorized brush. 26.9% of vacuum cleaners include this attachment.
Suitable for pet owners
What it is: Indicates whether the vacuum is especially suited to homes where pet hair is a regular cleaning concern.
When it matters: When pet hair is one of the main reasons you are buying a vacuum in the first place.

Importance: MEDIUM

yes
Bosch BBH3K2801 is suitable for pet owners. 72% of vacuum cleaners handle pet hair well.
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Vacuum type
What it is: Identifies the vacuum's overall form factor, such as stick, canister, upright, handheld, or wet-dry.
When it matters: When storage, maneuverability, and your usual cleaning jobs matter more than raw suction numbers.

Importance: LOW

stick
Weight
What it is: The total mass of the vacuum cleaner, which affects carrying comfort and ease of use.
When it matters: When you carry the vacuum upstairs, around the house, or use it for longer sessions.

Importance: MEDIUM

3 kg
Bosch BBH3K2801 weighs 3 kg, which is lower than the weight of 60.2% of vacuum cleaners and equal to that of 3.3% of vacuum cleaners.
2-in-1 design
What it is: A design that allows the vacuum to be used in two form factors, typically as a stick unit and a handheld unit.
When it matters: When you want one machine to handle both floors and quick handheld jobs.

Importance: LOW

yes
Bosch BBH3K2801 offers a 2-in-1 design. 53% of vacuum cleaners offer this flexible format.
Self-standing
What it is: Indicates whether the vacuum can remain upright on its own without being leaned against support.
When it matters: When you want to pause mid-clean without laying the vacuum on the floor or wall.

Importance: LOW

yes
Bosch BBH3K2801 stands on its own. 18.9% of vacuum cleaners offer this convenience.
Adjustable tube height
What it is: Indicates whether the tube length can be adjusted to change reach and handling height.
When it matters: When different users share the vacuum or you want a more comfortable reach.

Importance: LOW

no
Bosch BBH3K2801 does not include adjustable tube height. 47.4% of vacuum cleaners offer this ergonomic feature.
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Auto suction adjustment
What it is: A function that changes suction automatically based on floor type or detected dirt load.
When it matters: When you want the vacuum to react by itself as you move between floor types or dirt levels.

Importance: LOW

no
Bosch BBH3K2801 does not support automatic suction adjustment. 19.9% of vacuum cleaners support this feature.
Dust particle sensor
What it is: A sensor that monitors fine debris levels to inform or automate cleaning behavior.
When it matters: When you want extra feedback in dusty rooms instead of relying only on what you can see.

Importance: LOW

no
Bosch BBH3K2801 does not include a dust particle sensor. 8% of vacuum cleaners include this feature.
LED display
What it is: A built-in illuminated display used to show status information such as battery, mode, or alerts.
When it matters: When you want cleaner status feedback for battery, mode, and warnings at a glance.

Importance: LOW

no
Bosch BBH3K2801 does not include an LED display. 25.9% of vacuum cleaners include this interface feature.
Nozzle light
What it is: A light built into the cleaning head to improve visibility in dark areas under furniture or along edges.
When it matters: When you vacuum under beds, sofas, or dark corners where hidden dust is easy to miss.

Importance: LOW

yes
Bosch BBH3K2801 includes a nozzle light. 43.4% of vacuum cleaners include this visibility feature.
Mopping support
What it is: Indicates whether the appliance can also wipe or mop surfaces in addition to vacuuming.
When it matters: When you want one appliance to handle both dry vacuuming and light floor wiping.

Importance: LOW

no
Bosch BBH3K2801 does not support mopping. 3.7% of vacuum cleaners support this multi-function feature.

Bosch BBH3K2801 vs the average vacuum cleaner

  • Cordless operation
    Bosch BBH3K2801 works cordlessly, the average vacuum cleaner does not.
    What it is: Indicates whether the vacuum can run without being connected to a power cable.
    When it matters: When you want to move quickly between rooms, stairs, or cars without trailing a power cord.

    Importance: MEDIUM

    Bosch BBH3K2801 works cordlessly, the average vacuum cleaner does not.
  • Self-standing design
    Bosch BBH3K2801 stands on its own, the average vacuum cleaner does not.
    What it is: Indicates whether the vacuum can remain upright on its own without being leaned against support.
    When it matters: When you want to pause mid-clean without laying the vacuum on the floor or wall.

    Importance: LOW

    Bosch BBH3K2801 stands on its own, the average vacuum cleaner does not.
  • Includes nozzle light
    Bosch BBH3K2801 includes a nozzle light, the average vacuum cleaner does not.
    What it is: A light built into the cleaning head to improve visibility in dark areas under furniture or along edges.
    When it matters: When you vacuum under beds, sofas, or dark corners where hidden dust is easy to miss.

    Importance: LOW

    Bosch BBH3K2801 includes a nozzle light, the average vacuum cleaner does not.
  • Includes battery indicator
    Bosch BBH3K2801 includes a battery level indicator, the average vacuum cleaner does not.
    What it is: A visual signal that shows the remaining charge state of the battery.
    When it matters: When you want to know how much cleaning time is left before the battery runs out.

    Importance: LOW

    Bosch BBH3K2801 includes a battery level indicator, the average vacuum cleaner does not.
  • 85 mm shallower body
    Bosch BBH3K2801 is less deep than the average vacuum cleaner (180 mm vs 265 mm).
    What it is: The front-to-back measurement of the vacuum body or main assembly.
    When it matters: When front-to-back size affects where the vacuum can be stored or parked.

    Importance: LOW

    Bosch BBH3K2801 is less deep than the average vacuum cleaner (180 mm vs 265 mm).180 mm vs 265 mm
  • 3 V higher voltage
    Bosch BBH3K2801 has a higher battery voltage than the average vacuum cleaner (25.2 V vs 22.2 V).
    What it is: The nominal electrical voltage supplied by the battery pack.
    When it matters: When you compare cordless models and want another clue about battery system strength.

    Importance: LOW

    Bosch BBH3K2801 has a higher battery voltage than the average vacuum cleaner (25.2 V vs 22.2 V).25.2 V vs 22.2 V
  • 175 W lower power draw
    Bosch BBH3K2801 draws less power than the average vacuum cleaner (425 W vs 600 W).
    What it is: The amount of electrical power the vacuum draws while operating, measured in watts.
    When it matters: When you want to limit electricity use or compare efficiency between vacuums with similar cleaning power.

    Importance: LOW

    Bosch BBH3K2801 draws less power than the average vacuum cleaner (425 W vs 600 W).425 W vs 600 W
  • 5 minutes longer runtime
    Bosch BBH3K2801 offers longer battery runtime than the average vacuum cleaner (55 minutes vs 50 minutes).
    What it is: The maximum operating time the vacuum can deliver on a full charge in standard use.
    When it matters: When you want to finish your normal cleaning routine on one charge.

    Importance: HIGH

    Bosch BBH3K2801 offers longer battery runtime than the average vacuum cleaner (55 minutes vs 50 minutes).55 minutes vs 50 minutes
  • 175 W lower power draw
    Bosch BBH3K2801 draws less power than the average vacuum cleaner (425 W vs 600 W).
  • Cordless operation
    Bosch BBH3K2801 works cordlessly, the average vacuum cleaner does not.
  • Includes battery indicator
    Bosch BBH3K2801 includes a battery level indicator, the average vacuum cleaner does not.
  • 3 V higher voltage
    Bosch BBH3K2801 has a higher battery voltage than the average vacuum cleaner (25.2 V vs 22.2 V).
  • 5 minutes longer runtime
    Bosch BBH3K2801 offers longer battery runtime than the average vacuum cleaner (55 minutes vs 50 minutes).
  • Self-standing design
    Bosch BBH3K2801 stands on its own, the average vacuum cleaner does not.
  • 85 mm shallower body
    Bosch BBH3K2801 is less deep than the average vacuum cleaner (180 mm vs 265 mm).
  • 14.8% lower weight
    Bosch BBH3K2801 is lighter than the average vacuum cleaner (3 kg vs 3.52 kg).
  • Includes nozzle light
    Bosch BBH3K2801 includes a nozzle light, the average vacuum cleaner does not.
  • Louder operation
    Bosch BBH3K2801 is noisier than the average vacuum cleaner (82-82 dB vs 77-77 dB).
  • 1 hours slower charging
    Bosch BBH3K2801 charges slower than the average vacuum cleaner (5 hours vs 4 hours).
  • 20% smaller battery capacity
    Bosch BBH3K2801 has a smaller battery capacity than the average vacuum cleaner (2000 mAh vs 2500 mAh).
  • 0.6 L smaller dust bin
    Bosch BBH3K2801 has a smaller dust capacity than the average vacuum cleaner (0.4 L vs 1 L).
  • Not allergy-friendly
    Bosch BBH3K2801 is not suitable for allergy sufferers, the average vacuum cleaner is.
  • Lower filter class
    Bosch BBH3K2801 uses a lower filter class than the average vacuum cleaner (washable filter vs hepa).
  • 40 mm taller body
    Bosch BBH3K2801 is taller than the average vacuum cleaner (1150 mm vs 1110 mm).
  • Louder operation
    Bosch BBH3K2801 is noisier than the average vacuum cleaner (82-82 dB vs 77-77 dB).
    What it is: The operating sound range of the vacuum across its available modes, measured in decibels.
    When it matters: When you clean in apartments, around children, or at night and want a quieter machine.

    Importance: HIGH

    Bosch BBH3K2801 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 bin
    Bosch BBH3K2801 has a smaller dust capacity than the average vacuum cleaner (0.4 L vs 1 L).
    What it is: The amount of dust or debris the container or bag can hold before it needs to be emptied or replaced.
    When it matters: When you want to empty the dust container less often during bigger cleaning jobs.

    Importance: MEDIUM

    Bosch BBH3K2801 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
    Bosch BBH3K2801 charges slower than the average vacuum cleaner (5 hours vs 4 hours).
    What it is: The time required to recharge the battery from empty to full.
    When it matters: When you need the vacuum ready again quickly after a short cleaning session.

    Importance: MEDIUM

    Bosch BBH3K2801 charges slower than the average vacuum cleaner (5 hours vs 4 hours).5 hours vs 4 hours
  • 20% smaller battery capacity
    Bosch BBH3K2801 has a smaller battery capacity than the average vacuum cleaner (2000 mAh vs 2500 mAh).
    What it is: The total amount of energy or charge the battery can store before recharging is needed.
    When it matters: When you want a rough idea of how much stored energy the battery pack holds.

    Importance: MEDIUM

    Bosch BBH3K2801 has a smaller battery capacity than the average vacuum cleaner (2000 mAh vs 2500 mAh).2000 mAh vs 2500 mAh
  • Not allergy-friendly
    Bosch BBH3K2801 is not suitable for allergy sufferers, the average vacuum cleaner is.
    What it is: Indicates whether the filtration setup is strong enough to make the vacuum more appropriate for allergy-sensitive homes.
    When it matters: When someone at home reacts badly to dust and you want a safer filtration setup.

    Importance: MEDIUM

    Bosch BBH3K2801 is not suitable for allergy sufferers, the average vacuum cleaner is.
  • Lower filter class
    Bosch BBH3K2801 uses a lower filter class than the average vacuum cleaner (washable filter vs hepa).
    What it is: The filtration standard or class used to describe how finely the vacuum filters outgoing air.
    When it matters: When you care about capturing finer dust and keeping the exhaust air cleaner.

    Importance: MEDIUM

    Bosch BBH3K2801 uses a lower filter class than the average vacuum cleaner (washable filter vs hepa).washable filter vs hepa
  • 40 mm taller body
    Bosch BBH3K2801 is taller than the average vacuum cleaner (1150 mm vs 1110 mm).
    What it is: The vertical size of the vacuum when measured in its assembled or standing form.
    When it matters: When upright storage height or fit inside cupboards matters in your home.

    Importance: LOW

    Bosch BBH3K2801 is taller than the average vacuum cleaner (1150 mm vs 1110 mm).1150 mm vs 1110 mm

Graphic comparison of Bosch BBH3K2801 and other vacuum cleaners

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Third-party reviews

United Kingdom
United States

(Reviews last updated: July 2026)

What customers like about Bosch BBH3K2801?

  • Convenient 2-in-1 design with a detachable handheld vacuum unit.
  • Integrated onboard storage keeps accessories and tools easily accessible.
  • Equipped with integrated LED headlights on the floor nozzle to illuminate dark areas.
  • Lightweight and highly maneuverable around furniture and tight spaces.
  • Provides a long maximum runtime of up to 55 minutes on the lowest power setting.
  • Brush roller is easy to remove and clean without requiring extra tools.

What customers dislike about Bosch BBH3K2801?

  • Small dust container capacity (0.3 litres) requires very frequent emptying.
  • Suction performance is less effective on high-pile carpets compared to hard floors.
  • Battery runtime drops significantly when operating in high-power or turbo modes.
  • Long battery recharge time, requiring approximately 5 hours for a full charge.
  • Built-in battery cannot be easily replaced or swapped out by the user.
  • Casing and plastic components can feel somewhat cheap or less durable.

Expert reviews

W
whichvac.com
15/09/2023
Summary of the review
G
guide-aspirateur.net
22/11/2021
Summary of the review
C
consumentenbond.nl
No publication date available
Summary of the review
K
kieskeurig.nl
N/A
Summary of the review

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