Shark IZ381UKT Review | 52 Data compared

Avg. price:~£270Suction power (AW):75 AWBattery runtime:50 minutesCapacity:0.7 LWeight:3.45 kg

Shark IZ381UKT 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.

7.7

Overall score

Score
7.7/ 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
Score components

80%

7.7

Technical Score

20%

?

User score

â–²Better than 82% of vacuum-cleaners
7.7

Technical Score

Technical score
7.7/ 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
Score components

28%

6.9

Performance

22%

8.4

Battery

18%

8.2

Filtration

14%

8.7

Attachments

10%

7.1

Design

8%

7.0

Smart features

â–²Better than 83% 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
Score components

70%

?

User ratings

30%

?

Number of reviews

  • No image
No image

Best prices

    N/A~ £270
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Verdict

The Shark PowerPro Pet IZ381UKT is a 181-watt bagless cordless stick vacuum cleaner featuring a 0.7-litre dust capacity, a 3.19 kg lightweight frame, and an LED display. Its main characteristics include FloorDetect technology for automated brush-roll speed adjustment, a bendable Flexology wand for under-furniture reach, and a motorized pet tool. Key pros include up to 50 minutes of eco-mode runtime, effective hair removal via Anti-Hair Wrap technology, and a 99.99% Anti-Allergen Complete Seal. However, notable cons are its reduced battery life when operating on high carpet or boost modes, its lack of a dedicated wall mount or charging dock, and subpar edge-cleaning pickup.

Technical Specifications of vacuum cleaner Shark IZ381UKT

Technical Score
Technical score
7.7/ 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
Score components:

28%

6.9

Performance

22%

8.4

Battery

18%

8.2

Filtration

14%

8.7

Attachments

10%

7.1

Design

8%

7.0

Smart features

7.7
Shark IZ381UKT has a technical score of 7.7 points, which is higher than 82.5% 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
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
Popularity:
Shark IZ381UKT has a popularity score of 1 point, which is lower than 61.7% of vacuum cleaners.
1.0
Shark IZ381UKT has a popularity score of 1 point, which is lower than 61.7% 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
â–¼
<55-66-77-88-99-10
Score components:

60%

7.7

Overall score

40%

9.1

Price

8.1
Shark IZ381UKT has a value-for-money score of 8.1 points, which is higher than 78.2% of vacuum cleaners.
Suction power (AW)
75 AW
Suction power (AW)
75 AW
This vacuum cleaner has a suction power of 75 AW, which is lower than that of 82% of vacuum cleaners and equal to that of 2.8% of vacuum cleaners.
Suction power (kPa)
25 kPa
Suction power (kPa)
25 kPa
This vacuum cleaner has a suction pressure of 25 kPa, which is higher than that of 78.3% of vacuum cleaners and equal to that of 3.9% of vacuum cleaners.
Airflow
?
Motor type
brushless
Power consumption
181 W
Power consumption
181 W
This vacuum cleaner draws 181 W, which is lower than the power consumption of 86.5% of vacuum cleaners and equal to that of 0.5% 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
50 minutes
Battery runtime
50 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
3.5 hours
Charging time
3.5 hours
This vacuum cleaner charges in 3.5 hours, which is faster than 69.1% of vacuum cleaners and equal to 16.8% of vacuum cleaners.
Battery capacity
?
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
99.9%
Minimum overall efficiency
99.9%
This vacuum cleaner reaches 99.9% minimum overall efficiency, which is lower than that of 68.1% of vacuum cleaners and equal to that of 10.6% 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
roll brush
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
3.45 kg
Weight
3.45 kg
This vacuum cleaner weighs 3.45 kg, which is lower than the weight of 52.3% of vacuum cleaners and equal to that of 0.6% 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
no
Dust particle sensor
no
This vacuum cleaner does not include a dust particle sensor. 8% of vacuum cleaners include this feature.
LED display
no
LED display
no
This vacuum cleaner does not include 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 IZ381UKT vs the average vacuum cleaner

246810TotalPerformanceBatteryFiltrationAttachmentsDesignSmart features
  • 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.
  • Automatic suction adjustment
    Auto suction adjustment
    yes
    This vacuum cleaner supports automatic suction adjustment, the average vacuum cleaner does not.
  • 5 kPa higher suction pressure
    Suction power (kPa)
    25 kPa
    This vacuum cleaner has higher suction pressure than the average vacuum cleaner (25 kPa vs 20 kPa).
    25 kPa vs 20 kPa
  • Includes removable battery
    Removable battery
    yes
    This vacuum cleaner includes a removable battery, the average vacuum cleaner does not.
  • 419 W lower power consumption
    Power consumption
    181 W
    This vacuum cleaner draws less power than the average vacuum cleaner (181 W vs 600 W).
    181 W vs 600 W
  • Less operating noise
    Noise level (Min-Max)
    69.5-70.4 dB
    This vacuum cleaner is quieter than the average vacuum cleaner (69.5-70.4 dB vs 77-77 dB).
    69.5-70.4 dB vs 77-77 dB
  • 5 kPa higher suction pressure
    Suction power (kPa)
    25 kPa
    This vacuum cleaner has higher suction pressure than the average vacuum cleaner (25 kPa vs 20 kPa).
    25 kPa vs 20 kPa
  • 419 W lower power consumption
    Power consumption
    181 W
    This vacuum cleaner draws less power than the average vacuum cleaner (181 W vs 600 W).
    181 W vs 600 W
  • Less operating noise
    Noise level (Min-Max)
    69.5-70.4 dB
    This vacuum cleaner is quieter than the average vacuum cleaner (69.5-70.4 dB vs 77-77 dB).
    69.5-70.4 dB vs 77-77 dB
  • Cordless operation
    Cordless
    yes
    This vacuum cleaner works cordlessly, the average vacuum cleaner does not.
  • Includes removable battery
    Removable battery
    yes
    This vacuum cleaner includes a removable battery, the average vacuum cleaner does not.
  • 0.5 hours faster charging
    Charging time
    3.5 hours
    This vacuum cleaner charges faster than the average vacuum cleaner (3.5 hours vs 4 hours).
    3.5 hours vs 4 hours
  • Includes battery indicator
    Battery level indicator
    yes
    This vacuum cleaner includes a battery level indicator, 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.
  • Includes foldable tube
    Foldable tube
    yes
    This vacuum cleaner includes a foldable tube, the average vacuum cleaner does not.
  • Newer release date
    Release date
    2025
    This vacuum cleaner has a newer release date than the average vacuum cleaner (2025 vs 2021).
    2025 vs 2021
  • 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.
  • 75 AW lower suction power
    Suction power (AW)
    75 AW
    This vacuum cleaner has lower suction power than the average vacuum cleaner (75 AW vs 150 AW).
    75 AW vs 150 AW
  • No soft dusting brush
    Soft dusting brush
    no
    This vacuum cleaner does not include a soft dusting brush, the average vacuum cleaner does.
  • No cyclonic technology
    Cyclonic technology
    no
    This vacuum cleaner does not use cyclonic technology, 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
  • 0.05 % lower filtration efficiency
    Minimum overall efficiency
    99.9 %
    This vacuum cleaner has lower filtration efficiency than the average vacuum cleaner (99.9 % vs 99.95 %).
    99.9 % vs 99.95 %
  • 42 mm narrower cleaning path
    Cleaning path width
    218 mm
    This vacuum cleaner has a narrower cleaning path than the average vacuum cleaner (218 mm vs 260 mm).
    218 mm vs 260 mm
  • 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 minutes shorter turbo runtime
    Turbo mode runtime
    10 minutes
    This vacuum cleaner offers shorter turbo runtime than the average vacuum cleaner (10 minutes vs 12 minutes).
    10 minutes vs 12 minutes
  • 80% more expensive
    Shark IZ381UKT is more expensive than the average vacuum cleaner (£270 vs £150).
    £270 vs £150
  • 75 AW lower suction power
    Suction power (AW)
    75 AW
    This vacuum cleaner has lower suction power than the average vacuum cleaner (75 AW vs 150 AW).
    75 AW vs 150 AW
  • No cyclonic technology
    Cyclonic technology
    no
    This vacuum cleaner does not use cyclonic technology, the average vacuum cleaner does.
  • 42 mm narrower cleaning path
    Cleaning path width
    218 mm
    This vacuum cleaner has a narrower cleaning path than the average vacuum cleaner (218 mm vs 260 mm).
    218 mm vs 260 mm
  • 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 minutes shorter turbo runtime
    Turbo mode runtime
    10 minutes
    This vacuum cleaner offers shorter turbo runtime than the average vacuum cleaner (10 minutes vs 12 minutes).
    10 minutes vs 12 minutes
  • 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
  • 0.05 % lower filtration efficiency
    Minimum overall efficiency
    99.9 %
    This vacuum cleaner has lower filtration efficiency than the average vacuum cleaner (99.9 % vs 99.95 %).
    99.9 % vs 99.95 %
  • No soft dusting brush
    Soft dusting brush
    no
    This vacuum cleaner does not include a soft dusting brush, the average vacuum cleaner does.
  • 77.9 mm deeper body
    Depth
    342.9 mm
    This vacuum cleaner is deeper than the average vacuum cleaner (342.9 mm vs 265 mm).
    342.9 mm vs 265 mm
  • 40 mm taller body
    Height
    1,140 mm
    This vacuum cleaner is taller than the average vacuum cleaner (1140 mm vs 1100 mm).
    1,140 mm vs 1,100 mm

Graphic comparison of Shark IZ381UKT and other vacuum cleaners

No results found

Third-party reviews

What customers like about Shark IZ381UKT?

  • Strong suction power that adapts automatically to different floor types
  • Highly efficient motorized pet tool that easily lifts embedded pet hair
  • Flexology wand bends effortlessly to clean underneath low furniture
  • Anti-hair wrap technology successfully minimizes tangles on the brush roll
  • Folds down easily for freestanding and compact storage
  • Effective anti-allergen complete seal traps dust and dander inside the unit

What customers dislike about Shark IZ381UKT?

  • Noticeably heavy and bulky to hold during extended cleaning sessions
  • Battery drains rapidly when operating the vacuum on maximum turbo mode
  • Edge-cleaning performance leaves behind some debris along baseboards
  • Dustbin capacity is somewhat small and requires frequent emptying
  • Battery level indicator is awkwardly positioned and difficult to see clearly

Expert reviews

In-depth analysis and verdict from leading tech publications

T
trustedreviews.com
12/06/2025
Summary of the review
T
techradar.com
21/11/2025
Summary of the review

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