Shark IP3251UKT Review | 52 Data compared

Avg. price:~£420Suction power (AW):142 AWBattery runtime:70 minutesCapacity:0.7 LWeight:3.71 kg

Shark IP3251UKT 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.

8.0

Overall score

Score
8.0/ 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
▼
<55-66-77-88-99-10
Score components

80%

8.0

Technical Score

20%

7.8

User score

▲Better than 88% of vacuum-cleaners
8.0

Technical Score

Technical score
8.0/ 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
▼
<55-66-77-88-99-10
Score components

28%

7.3

Performance

22%

8.0

Battery

18%

8.6

Filtration

14%

8.7

Attachments

10%

6.8

Design

8%

9.4

Smart features

▲Better than 89% of vacuum-cleaners
7.8

User score

User score
7.8/ 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
▼
<55-66-77-88-99-10
Score components

70%

8.6

User ratings

30%

6.0

Number of reviews

Based on 103 buyer reviews from online shops.
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.
▼Worse than 79% of vacuum-cleaners
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Verdict

The Shark PowerDetect Clean & Empty IP3251UKT is a 380-watt cordless stick vacuum cleaner featuring a lightweight 3.71kg body, a 0.7L onboard dust cup, and a 2L bagless auto-empty dock that stores debris for up to 45 days. Key pros include a maximum runtime of 70 minutes, advanced DuoClean Detect technologies (which automatically adjust suction based on floor type, edges, and hidden dirt), Reverse Clean technology for efficient two-way debris collection, an anti-hair wrap brush roll, and a flexible MultiFLEX wand for under-furniture reach. However, noted cons include a relatively loud 86dB noise level on maximum power, a lengthy 6-hour battery recharge time, a basic battery status display instead of a live countdown timer, and a bulkier base station that requires dedicated floor space.

Technical Specifications of vacuum cleaner Shark IP3251UKT

Technical Score
Technical score
8.0/ 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
▼
<55-66-77-88-99-10
Score components:

28%

7.3

Performance

22%

8.0

Battery

18%

8.6

Filtration

14%

8.7

Attachments

10%

6.8

Design

8%

9.4

Smart features

8.0
Shark IP3251UKT has a technical score of 8 points, which is higher than 88.9% of vacuum cleaners.
User score
User score
7.8/ 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
▼
<55-66-77-88-99-10
Score components

70%

8.6

User ratings

30%

6.0

Number of reviews

Based on 103 buyer reviews from online shops.
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.
7.8
Shark IP3251UKT has a user score of 7.81 points, which is lower than 78.5% of vacuum cleaners.
Popularity
Popularity
6.0/ 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
▼
<55-66-77-88-99-10
Popularity:
Shark IP3251UKT has a popularity score of 6 points, which is higher than 51.7% of vacuum cleaners.
6.0
Shark IP3251UKT has a popularity score of 6 points, which is higher than 51.7% of vacuum cleaners.
Ratio quality/price
Value for money
8.1/ 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
▼
<55-66-77-88-99-10
Score components:

60%

8.0

Overall score

40%

8.3

Price

8.1
Shark IP3251UKT has a value-for-money score of 8.1 points, which is higher than 78.2% of vacuum cleaners.
Suction power (AW)
142 AW
Suction power (AW)
142 AW
This vacuum cleaner has a suction power of 142 AW, which is lower than that of 57.3% of vacuum cleaners and equal to that of 1.9% of vacuum cleaners.
Suction power (kPa)
26.78 kPa
Suction power (kPa)
26.78 kPa
This vacuum cleaner has a suction pressure of 26.78 kPa, which is higher than that of 84.5% of vacuum cleaners.
Airflow
?
Motor type
digital
Power consumption
380 W
Power consumption
380 W
This vacuum cleaner draws 380 W, which is lower than the power consumption of 69.6% of vacuum cleaners and equal to that of 0.8% of vacuum cleaners.
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Cordless
yes
Cordless
yes
This vacuum cleaner works cordlessly. 49.5% of vacuum cleaners offer cordless operation.
Battery runtime
70 minutes
Battery runtime
70 minutes
This vacuum cleaner offers a battery runtime of 70 minutes, which is longer than that of 88% of vacuum cleaners and equal to that of 2.2% of vacuum cleaners.
Charging time
6 hours
Charging time
6 hours
This vacuum cleaner charges in 6 hours, which is slower than 95.3% of vacuum cleaners and equal to 4.3% of vacuum cleaners.
Battery capacity
3,750 mAh
Battery capacity
3,750 mAh
This vacuum cleaner has a battery capacity of 3,750 mAh, which is larger than that of 90.1% of vacuum cleaners and equal to that of 1.3% of vacuum cleaners.
Battery voltage
21.6 V
Battery voltage
21.6 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.
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Filter class
hepa
Filter class
hepa
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%
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
yes
Suitable for allergy sufferers
yes
This vacuum cleaner is suitable for allergy sufferers. 82.4% of vacuum cleaners are allergy-friendly.
Capacity
0.7 L
Capacity
0.7 L
This vacuum cleaner has a dust capacity of 0.7 L, which is smaller than that of 62.8% of vacuum cleaners and equal to that of 5.9% of vacuum cleaners.
Bagless
yes
Bagless
yes
This vacuum cleaner uses a bagless design. 78.6% of vacuum cleaners use this setup.
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Main brush type
soft roller
Roller type
multi-surface
Anti-tangle brush
yes
Anti-tangle brush
yes
This vacuum cleaner includes an anti-tangle brush. 25.7% of vacuum cleaners include this feature.
Mini motorized brush
yes
Mini motorized brush
yes
This vacuum cleaner includes a mini motorized brush. 26.9% of vacuum cleaners include this attachment.
Suitable for pet owners
yes
Suitable for pet owners
yes
This vacuum cleaner is suitable for pet owners. 72% of vacuum cleaners handle pet hair well.
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Vacuum type
stick
Weight
3.71 kg
Weight
3.71 kg
This vacuum cleaner weighs 3.71 kg, which is greater than the weight of 51.8% of vacuum cleaners and equal to that of 0.3% of vacuum cleaners.
2-in-1 design
yes
2-in-1 design
yes
This vacuum cleaner offers a 2-in-1 design. 53% of vacuum cleaners offer this flexible format.
Self-standing
no
Self-standing
no
This vacuum cleaner does not stand on its own. 18.9% of vacuum cleaners offer this convenience.
Adjustable tube height
no
Adjustable tube height
no
This vacuum cleaner does not include adjustable tube height. 47.4% of vacuum cleaners offer this ergonomic feature.
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Auto suction adjustment
yes
Auto suction adjustment
yes
This vacuum cleaner supports automatic suction adjustment. 19.9% of vacuum cleaners support this feature.
Dust particle sensor
yes
Dust particle sensor
yes
This vacuum cleaner includes a dust particle sensor. 8% of vacuum cleaners include this feature.
LED display
yes
LED display
yes
This vacuum cleaner includes an LED display. 25.9% of vacuum cleaners include this interface feature.
Nozzle light
yes
Nozzle light
yes
This vacuum cleaner includes a nozzle light. 43.4% of vacuum cleaners include this visibility feature.
Mopping support
no
Mopping support
no
This vacuum cleaner does not support mopping. 3.7% of vacuum cleaners support this multi-function feature.

Shark IP3251UKT vs the average vacuum cleaner

246810TotalPerformanceBatteryFiltrationAttachmentsDesignSmart features
  • 20 minutes longer runtime
    Battery runtime
    70 minutes
    This vacuum cleaner offers longer battery runtime than the average vacuum cleaner (70 minutes vs 50 minutes).
    70 minutes vs 50 minutes
  • 6.78 kPa higher suction pressure
    Suction power (kPa)
    26.78 kPa
    This vacuum cleaner has higher suction pressure than the average vacuum cleaner (26.8 kPa vs 20 kPa).
    26.78 kPa vs 20 kPa
  • Cordless operation
    Cordless
    yes
    This vacuum cleaner works cordlessly, the average vacuum cleaner does not.
  • Includes mini motorized brush
    Mini motorized brush
    yes
    This vacuum cleaner includes a mini motorized brush, the average vacuum cleaner does not.
  • Includes anti-tangle brush
    Anti-tangle brush
    yes
    This vacuum cleaner includes an anti-tangle brush, the average vacuum cleaner does not.
  • 1,250 mAh larger battery capacity
    Battery capacity
    3,750 mAh
    This vacuum cleaner has a larger battery capacity than the average vacuum cleaner (3750 mAh vs 2500 mAh).
    3,750 mAh vs 2,500 mAh
  • Automatic suction adjustment
    Auto suction adjustment
    yes
    This vacuum cleaner supports automatic suction adjustment, the average vacuum cleaner does not.
  • Includes dust particle sensor
    Dust particle sensor
    yes
    This vacuum cleaner includes a dust particle sensor, the average vacuum cleaner does not.
  • 6.78 kPa higher suction pressure
    Suction power (kPa)
    26.78 kPa
    This vacuum cleaner has higher suction pressure than the average vacuum cleaner (26.8 kPa vs 20 kPa).
    26.78 kPa vs 20 kPa
  • 1 more power levels
    Number of speeds
    3
    This vacuum cleaner offers more speed levels than the average vacuum cleaner (3 vs 2).
    3 vs 2
  • 220 W lower power consumption
    Power consumption
    380 W
    This vacuum cleaner draws less power than the average vacuum cleaner (380 W vs 600 W).
    380 W vs 600 W
  • 20 minutes longer runtime
    Battery runtime
    70 minutes
    This vacuum cleaner offers longer battery runtime than the average vacuum cleaner (70 minutes vs 50 minutes).
    70 minutes vs 50 minutes
  • Cordless operation
    Cordless
    yes
    This vacuum cleaner works cordlessly, the average vacuum cleaner does not.
  • 1,250 mAh larger battery capacity
    Battery capacity
    3,750 mAh
    This vacuum cleaner has a larger battery capacity than the average vacuum cleaner (3750 mAh vs 2500 mAh).
    3,750 mAh vs 2,500 mAh
  • Includes removable battery
    Removable battery
    yes
    This vacuum cleaner includes a removable battery, the average vacuum cleaner does not.
  • Includes battery indicator
    Battery level indicator
    yes
    This vacuum cleaner includes a battery level indicator, the average vacuum cleaner does not.
  • Includes full bin indicator
    Full bin indicator
    yes
    This vacuum cleaner includes a full bin indicator, the average vacuum cleaner does not.
  • 0.02 % higher filtration efficiency
    Minimum overall efficiency
    99.97 %
    This vacuum cleaner has higher filtration efficiency than the average vacuum cleaner (100 % vs 99.95 %).
    99.97 % vs 99.95 %
  • Includes mini motorized brush
    Mini motorized brush
    yes
    This vacuum cleaner includes a mini motorized brush, the average vacuum cleaner does not.
  • Includes anti-tangle brush
    Anti-tangle brush
    yes
    This vacuum cleaner includes an anti-tangle brush, the average vacuum cleaner does not.
  • Includes foldable tube
    Foldable tube
    yes
    This vacuum cleaner includes a foldable tube, the average vacuum cleaner does not.
  • Newer release date
    Release date
    2024
    This vacuum cleaner has a newer release date than the average vacuum cleaner (2024 vs 2021).
    2024 vs 2021
  • Includes dust particle sensor
    Dust particle sensor
    yes
    This vacuum cleaner includes a dust particle sensor, the average vacuum cleaner does not.
  • Automatic suction adjustment
    Auto suction adjustment
    yes
    This vacuum cleaner supports automatic suction adjustment, the average vacuum cleaner does not.
  • Includes nozzle light
    Nozzle light
    yes
    This vacuum cleaner includes a nozzle light, the average vacuum cleaner does not.
  • Includes LED display
    LED display
    yes
    This vacuum cleaner includes an LED display, the average vacuum cleaner does not.
  • More operating noise
    Noise level (Min-Max)
    85-86 dB
    This vacuum cleaner is noisier than the average vacuum cleaner (85-86 dB vs 77-77 dB).
    85-86 dB vs 77-77 dB
  • 2 hours slower charging
    Charging time
    6 hours
    This vacuum cleaner charges slower than the average vacuum cleaner (6 hours vs 4 hours).
    6 hours vs 4 hours
  • No soft dusting brush
    Soft dusting brush
    no
    This vacuum cleaner does not include a soft dusting brush, the average vacuum cleaner does.
  • 0.3 L smaller dust container
    Capacity
    0.7 L
    This vacuum cleaner has a smaller dust capacity than the average vacuum cleaner (0.7 L vs 1 L).
    0.7 L vs 1 L
  • 207 mm deeper body
    Depth
    472 mm
    This vacuum cleaner is deeper than the average vacuum cleaner (472 mm vs 265 mm).
    472 mm vs 265 mm
  • 2.8x more expensive
    Shark IP3251UKT is more expensive than the average vacuum cleaner (£420 vs £150).
    £420 vs £150
  • 2.6 minutes shorter turbo runtime
    Turbo mode runtime
    9.4 minutes
    This vacuum cleaner offers shorter turbo runtime than the average vacuum cleaner (9.4 minutes vs 12 minutes).
    9.4 minutes vs 12 minutes
  • 0.6 V lower voltage
    Battery voltage
    21.6 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
  • 2.8x more expensive
    Shark IP3251UKT is more expensive than the average vacuum cleaner (£420 vs £150).
    £420 vs £150
  • 2.4% lower user score
    User score
    7.8/ 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
    ▼▼
    <55-66-77-88-99-10
    Shark IP3251UKT
    the average vacuum cleaner
    Shark IP3251UKT has a lower user score than the average vacuum cleaner (7.81 vs 8.000).
    7.81 vs 8
  • More operating noise
    Noise level (Min-Max)
    85-86 dB
    This vacuum cleaner is noisier than the average vacuum cleaner (85-86 dB vs 77-77 dB).
    85-86 dB vs 77-77 dB
  • 8 AW lower suction power
    Suction power (AW)
    142 AW
    This vacuum cleaner has lower suction power than the average vacuum cleaner (142 AW vs 150 AW).
    142 AW vs 150 AW
  • 2 hours slower charging
    Charging time
    6 hours
    This vacuum cleaner charges slower than the average vacuum cleaner (6 hours vs 4 hours).
    6 hours vs 4 hours
  • 2.6 minutes shorter turbo runtime
    Turbo mode runtime
    9.4 minutes
    This vacuum cleaner offers shorter turbo runtime than the average vacuum cleaner (9.4 minutes vs 12 minutes).
    9.4 minutes vs 12 minutes
  • 0.6 V lower voltage
    Battery voltage
    21.6 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
  • 0.3 L smaller dust container
    Capacity
    0.7 L
    This vacuum cleaner has a smaller dust capacity than the average vacuum cleaner (0.7 L vs 1 L).
    0.7 L vs 1 L
  • No soft dusting brush
    Soft dusting brush
    no
    This vacuum cleaner does not include a soft dusting brush, the average vacuum cleaner does.
  • 207 mm deeper body
    Depth
    472 mm
    This vacuum cleaner is deeper than the average vacuum cleaner (472 mm vs 265 mm).
    472 mm vs 265 mm
  • 77 mm taller body
    Height
    1,177 mm
    This vacuum cleaner is taller than the average vacuum cleaner (1177 mm vs 1100 mm).
    1,177 mm vs 1,100 mm

Graphic comparison of Shark IP3251UKT and other vacuum cleaners

No results found

Third-party reviews

Based on 103 buyer reviews from online shops.
Reviews last updated: July 2026 · How we calculate this

What customers like about Shark IP3251UKT?

  • Strong suction power that effectively removes fine dust, large debris, and pet hair
  • Auto-empty dock simplifies maintenance and limits direct contact with dust
  • Intelligent PowerDetect sensors smoothly adjust suction based on dirt levels and floor types
  • Dual-roller head efficiently picks up debris on both forward and backward strokes
  • Flexible MultiFlex wand allows for easy cleaning under low-profile furniture
  • Generous battery runtime of up to 70 minutes on lower power settings
  • Sleek, modern, and visually appealing design

What customers dislike about Shark IP3251UKT?

  • Operation is quite noisy, particularly during automated base station emptying and in boost modes
  • The vacuum head can resist movement or feel difficult to drag on thick carpets and heavy rugs
  • Top-heavy weight distribution makes the unit unable to stand upright on its own
  • The onboard dust canister fills up very quickly before needing to dock
  • The auto-empty storage base has a bulky footprint that takes up notable floor space
  • Provided instructions can be brief and confusing regarding part disassembly

Expert reviews

In-depth analysis and verdict from leading tech publications

T
trustedreviews.com
23/10/2024
Summary of the review
E
expertreviews.co.uk
18/11/2024
Summary of the review
T
techadvisor.com
04/02/2025
Summary of the review
W
womanandhome.com
09/03/2025
Summary of the review
E
etm-testmagazin.de
06/01/2025
Summary of the review
M
morgenpost.de
06/07/2026
Summary of the review
T
testit.de
29/07/2026
Summary of the review
P
pctipp.ch
27/03/2025
Summary of the review
L
lesnumeriques.com
09/12/2024
Summary of the review
Q
quechoisir.org
27/06/2025
Summary of the review
P
phonandroid.com
18/12/2024
Summary of the review
C
clubic.com
03/07/2025
Summary of the review
L
lecafedugeek.fr
21/07/2025
Summary of the review
W
wair.fr
09/02/2026
Summary of the review
2
20minutos.es
10/06/2025
Summary of the review
S
smartworld.it
09/02/2026
Summary of the review
T
tecnorecensioni.com
09/12/2025
Summary of the review
T
techprincess.it
03/06/2026
Summary of the review
G
global.techradar.com
10/06/2025
Summary of the review
C
coolesuggesties.nl
02/07/2025
Summary of the review

Video reviews

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

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