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Shark AV2820S review: 118 specs compared

Avg. price:~£450Max suction power:?Runtime:110 minDustbin capacity:200 mLMax threshold height:25 mm

Shark AV2820S Review: Compare 118 technical specifications and user reviews to see how this product ranks in the Robot Vacuums category and whether it is worth buying.

Shark AV2820S
7.5/10

Overall score

Score
7.5/ 10
✕
What it is
An overall evaluation of the robot vacuum's quality, based on technical analyses and user reviews.
When it matters
When you need a quick reference to identify the best robot vacuums on the market.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 62% of models
Score components

80%

7.1

Technical score

20%

8.7

User score

â–²Better than 62% of robot vacuums
7.7

Value for money

Value for money
7.7/ 10
✕
What it is
An indicator that combines the robot vacuum's overall rating with its cost.
When it matters
When you are looking for a robot vacuum with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 54% of models
Score components

70%

7.5

Overall score

30%

8.1

Price

â–²Better than 54%
7.1

Technical score

Technical score
7.1/ 10
✕
What it is
An assessment of robot-vacuum performance across cleaning, navigation, mopping, battery life, filtration, brush design, smart features, and dimensions.
When it matters
When you want to compare robot vacuums based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 52% of models
Score components

30%

7.9

Cleaning

23%

7.2

Navigation

18%

6.3

Mopping

12%

5.6

Battery

10%

8.1

Smart Features

7%

7.2

Design

â–²Better than 52%
8.7

User score

User score
8.7/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the robot vacuum
When it matters
When you want to know how a robot vacuum handles daily tasks and how reliable it remains over time according to user feedback.
Score distribution
â–¼
<55-66-77-88-99-10
★ Better than 91% of models
Score components

70%

8.4

User ratings

30%

9.5

Number of reviews

Based on ratings from across the web.
★Better than 91%
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Where to buy
*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.
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Technical Specifications of robot vacuum Shark AV2820S

Technical score
Technical score
7.1/ 10
✕
What it is
An assessment of robot-vacuum performance across cleaning, navigation, mopping, battery life, filtration, brush design, smart features, and dimensions.
When it matters
When you want to compare robot vacuums based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 52% of models
Score components:

30%

7.9

Cleaning

23%

7.2

Navigation

18%

6.3

Mopping

12%

5.6

Battery

10%

8.1

Smart Features

7%

7.2

Design

7.1
User score
User score
8.7/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the robot vacuum
When it matters
When you want to know how a robot vacuum handles daily tasks and how reliable it remains over time according to user feedback.
Score distribution
â–¼
<55-66-77-88-99-10
★ Better than 91% of models
Score components

70%

8.4

User ratings

30%

9.5

Number of reviews

Based on ratings from across the web.
8.7
Popularity
Popularity
9.5/ 10
✕
What it is
An indicator based on the number of reviews received by the robot vacuum.
When it matters
When you prefer to purchase a product chosen and reviewed by many other consumers.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 87% of models
Popularity:
Shark AV2820S has a popularity index of 9.5, higher than that of 87.1% of robot vacuums and equal to that of 1.2% of robot vacuums.
9.5
Value for money
Value for money
7.7/ 10
✕
What it is
An indicator that combines the robot vacuum's overall rating with its cost.
When it matters
When you are looking for a robot vacuum with a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 54% of models
Score components:

70%

7.5

Overall score

30%

8.1

Price

7.7
Max suction power
?
N. of suction power levels
3
Market range: <2 – >4
This robot vacuum has 3 suction power levels, which is fewer than 50.5% of robot vacuums offer and the same number as 35.5% of robot vacuums offer.
Motor type
brushless
This robot vacuum uses a brushless motor, a type that is generally more efficient than those used by 2.7% of robot vacuums and also used by 97.3% of robot vacuums.
Power
35 W
Cleaning modes
3
Market range: <2 – >5
This robot vacuum offers 3 cleaning modes, which is fewer than 62% of robot vacuums offer and the same number as 27.7% of robot vacuums offer.
Show more
Mopping capability
yes
This robot vacuum can mop floors. 78.8% of robot vacuums offer this feature.
Mopping system type
vibrating pad
This robot vacuum uses vibrating pad for mopping. This system is more effective than those on 66.9% of robot vacuums and as effective as those on 12.5% of robot vacuums.
Mop pad type
none
Mop pad material
microfiber and cotton
Mop pressure
?
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Primary navigation technology
LiDAR
This robot vacuum uses LiDAR as its primary navigation system, which is more capable than the systems in 34.7% of robot vacuums and matched by 60.4% of robot vacuums.
Mapping capability
yes
This robot vacuum maps the floor. 74% of robot vacuums offer this feature.
Real-time mapping
no
This robot vacuum does not update its map in real time, although 68.7% of robot vacuums offer this feature.
Multiple map storage
no
This robot vacuum does not store multiple maps, although 56.6% of robot vacuums offer this feature.
Map editing
no
This robot vacuum does not support map editing, although 64% of robot vacuums offer this feature.
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App control
yes
This robot vacuum supports app control. 5.5% of robot vacuums support app control.
App name
SharkClean
Wi-Fi connectivity
yes
This robot vacuum supports Wi-Fi connectivity. 6.3% of robot vacuums support Wi-Fi connectivity.
Supported Wi-Fi bands
2.4 GHz
Bluetooth connectivity
yes
This robot vacuum supports Bluetooth connectivity. 35.5% of robot vacuums support Bluetooth connectivity.
Show more
Battery capacity
2,600 mAh
Market range: <2.4k mAh – >5.2k mAh
This robot vacuum has a battery capacity of 2,600 mAh, which is lower than 59% of robot vacuums and equal to 26.9% of robot vacuums.
Battery type
Li-ion
Battery voltage
14.4 V
Runtime
110 min
Market range: <90 min – >240 min
This robot vacuum runs for 110 min per charge, which is shorter than 77.6% of robot vacuums and equal to 5.2% of robot vacuums.
Recharge and resume
yes
This robot vacuum resumes cleaning after charging. 83.1% of robot vacuums offer this feature.
Show more
Shape
round
Height
104.1 mm
Width
340 mm
Length
340 mm
Weight
?
Show more

Shark AV2820S vs the average robot vacuum

246810TotalBatteryDesignSmart FeaturesNavigationCleaningMopping
  • Has anti-tangle technology
    This robot vacuum has anti-tangle technology, while the average robot vacuum does not. 42.8% of robot vacuums offer this feature.
  • Detects dirtier areas
    This robot vacuum detects dirtier areas, while the average robot vacuum does not detect dirtier areas.
  • Adjusts its cleaning height automatically
    This robot vacuum adjusts its cleaning height automatically, while the average robot vacuum uses a fixed cleaning height.
  • 0.97 % higher filter efficiency
    This robot vacuum has higher filter efficiency than the average robot vacuum (100 % vs 99 %). The average robot vacuum has a filter efficiency of 99 %.
    99.97 % vs 99 %
  • 1 more side brushes
    This robot vacuum has more side brushes than the average robot vacuum (2 vs 1). The average robot vacuum has 1 side brushes.
    2 vs 1
  • Better mopping system
    This robot vacuum uses vibrating pad for mopping, while the average robot vacuum uses static pad.
    vibrating pad vs static pad
  • 1.5 h shorter charging time
    This robot vacuum takes less time to recharge fully than the average robot vacuum (3 h vs 4.5 h). The average robot vacuum takes 4.5 h.
    3 h vs 4.5 h
  • 5 mm higher threshold clearance
    This robot vacuum can cross higher thresholds than the average robot vacuum (25 mm vs 20 mm). The average robot vacuum can cross thresholds up to 20 mm high.
    25 mm vs 20 mm
  • 9% higher user score
    User score
    8.7/ 10
    ✕
    What it is
    A rating that combines user reviews and the total number of reviews received by the robot vacuum
    When it matters
    When you want to know how a robot vacuum handles daily tasks and how reliable it remains over time according to user feedback.
    Score distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Shark AV2820S
    the average robot vacuum
    Shark AV2820S has a higher user score than the average robot vacuum (8.72 vs 8).
    8.72 vs 8
  • 45% more popular
    Shark AV2820S is more popular than the average robot vacuum (9.47 vs 6.5).
    9.47 vs 6.53
  • 1.5 h shorter charging time
    This robot vacuum takes less time to recharge fully than the average robot vacuum (3 h vs 4.5 h). The average robot vacuum takes 4.5 h.
    3 h vs 4.5 h
  • Newer model
    This robot vacuum was released in 2024, later than the average robot vacuum in 2023. The average release year for robot vacuums is 2023.
    2024 vs 2023
  • 5 mm higher threshold clearance
    This robot vacuum can cross higher thresholds than the average robot vacuum (25 mm vs 20 mm). The average robot vacuum can cross thresholds up to 20 mm high.
    25 mm vs 20 mm
  • Has anti-tangle technology
    This robot vacuum has anti-tangle technology, while the average robot vacuum does not. 42.8% of robot vacuums offer this feature.
  • Detects dirtier areas
    This robot vacuum detects dirtier areas, while the average robot vacuum does not detect dirtier areas.
  • Adjusts its cleaning height automatically
    This robot vacuum adjusts its cleaning height automatically, while the average robot vacuum uses a fixed cleaning height.
  • 0.97 % higher filter efficiency
    This robot vacuum has higher filter efficiency than the average robot vacuum (100 % vs 99 %). The average robot vacuum has a filter efficiency of 99 %.
    99.97 % vs 99 %
  • 1 more side brushes
    This robot vacuum has more side brushes than the average robot vacuum (2 vs 1). The average robot vacuum has 1 side brushes.
    2 vs 1
  • Better mopping system
    This robot vacuum uses vibrating pad for mopping, while the average robot vacuum uses static pad.
    vibrating pad vs static pad
  • Dispenses cleaning solution automatically
    This robot vacuum dispenses cleaning solution automatically, while the average robot vacuum does not. 26.4% of robot vacuums offer this.
  • No no-mop zones
    This robot vacuum does not support no-mop zones, while the average robot vacuum does. 53.1% of robot vacuums support this feature.
  • 1 fewer cleaning modes
    This robot vacuum offers fewer cleaning modes than the average robot vacuum (3 vs 4). The average robot vacuum offers 4 cleaning modes.
    3 vs 4
  • Does not have a floating main brush
    This robot vacuum does not have a floating main brush, while the average robot vacuum has a floating main brush.
  • Does not support map editing
    This robot vacuum does not support map editing, while the average robot vacuum lets you edit maps.
  • Does not store multiple maps
    This robot vacuum does not store multiple maps, while the average robot vacuum stores multiple maps.
  • Does not update its map in real time
    This robot vacuum does not update its map in real time, while the average robot vacuum updates its map in real time.
  • 1 fewer suction power levels
    This robot vacuum offers fewer suction power levels than the average robot vacuum (3 vs 4). The average robot vacuum offers 4 suction power levels.
    3 vs 4
  • 200 mL smaller dustbin
    This robot vacuum has a smaller onboard dustbin than the average robot vacuum (200 mL vs 400 mL). The average robot vacuum has a dustbin capacity of 400 mL.
    200 mL vs 400 mL
  • 73.1% more expensive
    Shark AV2820S is more expensive than the average robot vacuum (£450 vs £260).
    £450 vs £260
  • 40 min shorter runtime
    This robot vacuum runs for less time per charge than the average robot vacuum (110 min vs 150 min). The average robot vacuum runs for 150 min.
    110 min vs 150 min
  • 600 mAh smaller battery capacity
    This robot vacuum has a smaller battery capacity than the average robot vacuum (2,600 mAh vs 3,200 mAh). The average robot vacuum has a battery capacity of 3,200 mAh.
    2,600 mAh vs 3,200 mAh
  • 1 dB louder
    This robot vacuum has a higher reported cleaning noise level than the average robot vacuum (66 dB vs 65 dB). The average robot vacuum has a reported noise level of 65 dB.
    66 dB vs 65 dB
  • No maintenance notifications
    This robot vacuum does not provide maintenance notifications, while the average robot vacuum does. 76.8% of robot vacuums offer these.
  • 13 fewer languages supported
    This robot vacuum supports fewer languages than the average robot vacuum (4 vs 17). The average robot vacuum supports 17 languages.
    4 vs 17
  • No no-mop zones
    This robot vacuum does not support no-mop zones, while the average robot vacuum does. 53.1% of robot vacuums support this feature.
  • Does not support map editing
    This robot vacuum does not support map editing, while the average robot vacuum lets you edit maps.
  • Does not store multiple maps
    This robot vacuum does not store multiple maps, while the average robot vacuum stores multiple maps.
  • Does not update its map in real time
    This robot vacuum does not update its map in real time, while the average robot vacuum updates its map in real time.
  • Does not show its location in real time
    This robot vacuum does not show its location in real time, while the average robot vacuum shows its location in real time.
  • 1 fewer cleaning modes
    This robot vacuum offers fewer cleaning modes than the average robot vacuum (3 vs 4). The average robot vacuum offers 4 cleaning modes.
    3 vs 4
  • Does not have a floating main brush
    This robot vacuum does not have a floating main brush, while the average robot vacuum has a floating main brush.
  • 1 fewer suction power levels
    This robot vacuum offers fewer suction power levels than the average robot vacuum (3 vs 4). The average robot vacuum offers 4 suction power levels.
    3 vs 4
  • 200 mL smaller dustbin
    This robot vacuum has a smaller onboard dustbin than the average robot vacuum (200 mL vs 400 mL). The average robot vacuum has a dustbin capacity of 400 mL.
    200 mL vs 400 mL
  • 51 mm narrower main brush
    This robot vacuum has a narrower main brush than the average robot vacuum (127 mm vs 178 mm). The average robot vacuum has a main brush 178 mm wide.
    127 mm vs 178 mm
  • Does not include a cleaning tool
    This robot vacuum does not include a cleaning tool, while the average robot vacuum includes a cleaning tool.
  • 3 fewer water flow levels
    This robot vacuum offers fewer water flow levels than the average robot vacuum (0 vs 3). The average number of water flow levels is 3.
    0 vs 3

Expert reviews

In-depth analysis and verdict from leading tech publications

V
vacuumwars.com
27/12/2024
Summary of the review
Shark PowerDetect Robot Vacuum Review

Third-party reviews

Based on ratings from across the web.
Reviews last updated: July 2026 · How we calculate this

What customers like about Shark AV2820S

  • Excellent suction power and highly effective at picking up dust, dirt, and pet hair
  • NeverStuck technology allows it to easily lift and maneuver over high thresholds and thick carpets
  • Efficient and fast house mapping using built-in LiDAR technology
  • Convenient bagless self-emptying base that saves money on replacement bags
  • Smart sensory systems like DirtDetect and EdgeDetect automatically optimize cleaning power where needed

What customers don't like about Shark AV2820S

  • The companion smartphone application has limited functionality and a steep learning curve
  • Lacks advanced camera systems, causing it to struggle with avoiding small obstacle hazards like cables, socks, and power cords
  • The self-emptying process at the docking station is very loud
  • Battery life and efficiency are somewhat disappointing during heavy deep-cleaning sessions
  • Struggles with long hair wrapping around components despite the self-cleaning brushroll design

Verdict

The Shark PowerDetect Self-Empty Robot Vacuum (AV2820S) is a smart automated cleaner featuring 360° LiDAR vision for precise home mapping, a 100-minute maximum runtime, and an anti-hair wrap self-cleaning brushroll optimized for pet households. Its core characteristics include a bagless auto-empty base with a 30-to-60-day debris capacity, an integrated HEPA filter trapping 99.97% of allergens down to 0.3 microns, and Odour Neutraliser technology. Main pros include DirtDetect for automatic suction boosting on heavy messes, EdgeDetect which utilizes air blasts to dislodge debris from corners, and NeverStuck Technology that actively lifts the chassis over thresholds under 1 inch. However, notable cons include below-average obstacle avoidance relative to flagship competitors, difficulties capturing long or embedded hair on dense carpets, and a buggy companion app that lacks advanced multi-floor configuration.

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