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Products in this category are scored under Frontum Robot Vacuums Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
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ECOVACS DEEBOT OZMO 920 review: 118 specs compared

Avg. price:~£540Max suction power:1200 PaRuntime:110 minDustbin capacity:430 mLMax threshold height:20 mm

ECOVACS DEEBOT OZMO 920 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.

ECOVACS DEEBOT OZMO 920
7.3/10

Overall score

Score
7.3/ 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
▼
<55-66-77-88-99-10
Score components

80%

6.9

Technical score

20%

8.8

User score

▲Better than 55% of robot vacuums
7.4

Value for money

Value for money
7.4/ 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
▼
<55-66-77-88-99-10
Score components

70%

7.3

Overall score

30%

7.7

Price

▼Worse than 65%
6.9

Technical score

Technical score
6.9/ 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
▼
<55-66-77-88-99-10
Score components

30%

6.5

Cleaning

23%

7.7

Navigation

18%

6.3

Mopping

12%

6.6

Battery

10%

8.7

Smart Features

7%

5.4

Design

▼Worse than 55%
8.8

User score

User score
8.8/ 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
▼
<55-66-77-88-99-10
Score components

70%

8.3

User ratings

30%

10

Number of reviews

Based on ratings from across the web.
★Better than 93%
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Where to buy
    N/A~ £540
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 ECOVACS DEEBOT OZMO 920

Technical score
Technical score
6.9/ 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
▼
<55-66-77-88-99-10
Score components:

30%

6.5

Cleaning

23%

7.7

Navigation

18%

6.3

Mopping

12%

6.6

Battery

10%

8.7

Smart Features

7%

5.4

Design

6.9
User score
User score
8.8/ 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
▼
<55-66-77-88-99-10
Score components

70%

8.3

User ratings

30%

10

Number of reviews

Based on ratings from across the web.
8.8
Popularity
Popularity
10/ 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
▼
<55-66-77-88-99-10
Popularity:
ECOVACS DEEBOT OZMO 920 has a popularity index of 10, higher than that of 91.5% of robot vacuums and equal to that of 8.5% of robot vacuums.
10
Value for money
Value for money
7.4/ 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
▼
<55-66-77-88-99-10
Score components:

70%

7.3

Overall score

30%

7.7

Price

7.4
Max suction power
1,200 Pa
This robot vacuum has a maximum suction pressure of 1,200 Pa, which is lower than 95.2% of robot vacuums and equal to 1.1% of robot vacuums.
N. of suction power levels
3
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
40 W
Cleaning modes
3
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
static pad
This robot vacuum uses static pad for mopping. This system is more effective than those on 20.4% of robot vacuums and as effective as those on 46.3% of robot vacuums.
Mop pad type
semi-circular
Mop pad material
microfiber
Mop pressure
?
Show more
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
yes
This robot vacuum updates its map in real time. 68.5% of robot vacuums offer this feature.
Multiple map storage
yes
This robot vacuum stores multiple maps. 56.4% of robot vacuums offer this feature.
Map editing
yes
This robot vacuum lets you edit maps. 63.8% of robot vacuums offer this feature.
Show more
App control
yes
This robot vacuum supports app control. 5.5% of robot vacuums support app control.
App name
ECOVACS HOME
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
no
This robot vacuum does not support Bluetooth connectivity. 64.7% of robot vacuums support Bluetooth connectivity.
Show more
Battery capacity
5,200 mAh
This robot vacuum has a battery capacity of 5,200 mAh, which is higher than 67.3% of robot vacuums and equal to 26.5% of robot vacuums.
Battery type
Li-ion
Battery voltage
14.4 V
Runtime
110 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
93 mm
Width
350 mm
Length
350 mm
Weight
3 kg
This robot vacuum weighs 3 kg, making it lighter than 74.7% of robot vacuums and the same weight as 3.1% of robot vacuums.
Show more

ECOVACS DEEBOT OZMO 920 vs the average robot vacuum

246810TotalBatteryDesignSmart FeaturesNavigationCleaningMopping
  • 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
  • 2,000 mAh greater battery capacity
    This robot vacuum has a greater battery capacity than the average robot vacuum (5,200 mAh vs 3,200 mAh). The average robot vacuum has a battery capacity of 3,200 mAh.
    5,200 mAh vs 3,200 mAh
  • 1 more water flow levels
    This robot vacuum offers more water flow levels than the average robot vacuum (4 vs 3). The average number of water flow levels is 3.
    4 vs 3
  • 16% lighter
    This robot vacuum is lighter than the average robot vacuum (3 kg vs 3.57 kg). The average robot vacuum weighs 3.57 kg.
    3 kg vs 3.57 kg
  • 3.8 kg lighter base station
    This robot vacuum has a lighter base station than the average robot vacuum (0.5 kg vs 4.3 kg). The average robot vacuum's base station weighs 4.3 kg.
    0.5 kg vs 4.3 kg
  • 0.5 % higher filter efficiency
    This robot vacuum has higher filter efficiency than the average robot vacuum (99.5 % vs 99 %). The average robot vacuum has a filter efficiency of 99 %.
    99.5 % vs 99 %
  • 10.1% higher user score
    User score
    8.8/ 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
    ▼
    ▼
    <55-66-77-88-99-10
    ECOVACS DEEBOT OZMO 920
    the average robot vacuum
    ECOVACS DEEBOT OZMO 920 has a higher user score than the average robot vacuum (8.8 vs 8).
    8.8 vs 8
  • 52.8% more popular
    ECOVACS DEEBOT OZMO 920 is more popular than the average robot vacuum (9.98 vs 6.5).
    9.98 vs 6.53
  • 10.1% higher user score
    User score
    8.8/ 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
    ▼
    ▼
    <55-66-77-88-99-10
    ECOVACS DEEBOT OZMO 920
    the average robot vacuum
    ECOVACS DEEBOT OZMO 920 has a higher user score than the average robot vacuum (8.8 vs 8).
    8.8 vs 8
  • 52.8% more popular
    ECOVACS DEEBOT OZMO 920 is more popular than the average robot vacuum (9.98 vs 6.5).
    9.98 vs 6.53
  • 2,000 mAh greater battery capacity
    This robot vacuum has a greater battery capacity than the average robot vacuum (5,200 mAh vs 3,200 mAh). The average robot vacuum has a battery capacity of 3,200 mAh.
    5,200 mAh vs 3,200 mAh
  • 0.5 h shorter charging time
    This robot vacuum takes less time to recharge fully than the average robot vacuum (4 h vs 4.5 h). The average robot vacuum takes 4.5 h.
    4 h vs 4.5 h
  • 16% lighter
    This robot vacuum is lighter than the average robot vacuum (3 kg vs 3.57 kg). The average robot vacuum weighs 3.57 kg.
    3 kg vs 3.57 kg
  • 3.8 kg lighter base station
    This robot vacuum has a lighter base station than the average robot vacuum (0.5 kg vs 4.3 kg). The average robot vacuum's base station weighs 4.3 kg.
    0.5 kg vs 4.3 kg
  • 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
  • 0.5 % higher filter efficiency
    This robot vacuum has higher filter efficiency than the average robot vacuum (99.5 % vs 99 %). The average robot vacuum has a filter efficiency of 99 %.
    99.5 % vs 99 %
  • 30 mL larger dustbin
    This robot vacuum has a larger onboard dustbin than the average robot vacuum (430 mL vs 400 mL). The average robot vacuum has a dustbin capacity of 400 mL.
    430 mL vs 400 mL
  • 5 mm wider main brush
    This robot vacuum has a wider main brush than the average robot vacuum (183 mm vs 178 mm). The average robot vacuum has a main brush 178 mm wide.
    183 mm vs 178 mm
  • 1 more water flow levels
    This robot vacuum offers more water flow levels than the average robot vacuum (4 vs 3). The average number of water flow levels is 3.
    4 vs 3
  • More basic obstacle avoidance
    This robot vacuum uses infrared for obstacle avoidance, while the average robot vacuum uses hybrid.
    infrared vs hybrid
  • 2,800 Pa weaker maximum suction
    This robot vacuum has weaker maximum suction than the average robot vacuum (1,200 Pa vs 4,000 Pa). The average robot vacuum has a maximum suction pressure of 4,000 Pa.
    1,200 Pa vs 4,000 Pa
  • 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
  • 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
  • Older model
    This robot vacuum was released in 2019, earlier than the average robot vacuum in 2023. The average release year for robot vacuums is 2023.
    2019 vs 2023
  • 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.
  • 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
  • 2.08x more expensive
    ECOVACS DEEBOT OZMO 920 is more expensive than the average robot vacuum (£540 vs £260).
    £540 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
  • Older model
    This robot vacuum was released in 2019, earlier than the average robot vacuum in 2023. The average release year for robot vacuums is 2023.
    2019 vs 2023
  • 0.3 m shorter power cord
    This robot vacuum has a shorter power cord than the average robot vacuum (1.2 m vs 1.5 m). The average robot vacuum's power cord is 1.5 m long.
    1.2 m vs 1.5 m
  • 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 Bluetooth
    This robot vacuum does not support Bluetooth connectivity, while the average robot vacuum does. 64.6% of robot vacuums support Bluetooth connectivity.
  • More basic obstacle avoidance
    This robot vacuum uses infrared for obstacle avoidance, while the average robot vacuum uses hybrid.
    infrared vs hybrid
  • 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 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.
  • 2,800 Pa weaker maximum suction
    This robot vacuum has weaker maximum suction than the average robot vacuum (1,200 Pa vs 4,000 Pa). The average robot vacuum has a maximum suction pressure of 4,000 Pa.
    1,200 Pa vs 4,000 Pa
  • 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
  • 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

Video reviews

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

Expert reviews

In-depth analysis and verdict from leading tech publications

Gearbrain
Gearbrain
10/09/2019
Summary of the review
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techhive.com
13/09/2019
Summary of the review
Z
zdnet.com
27/02/2020
Summary of the review
T
techadvisor.com
23/04/2020
Summary of the review
X
xameliax.com
07/10/2020
Summary of the review
C
chip.de
06/07/2020
Summary of the review
I
iqhaus.de
27/07/2020
Summary of the review
F
frandroid.com
12/09/2020
Summary of the review
J
journaldugeek.com
08/10/2020
Summary of the review
M
mac4ever.com
22/04/2020
Summary of the review
I
it-connect.fr
23/10/2019
Summary of the review
L
lesalexiens.fr
12/10/2019
Summary of the review
T
tech2tech.fr
13/05/2020
Summary of the review
T
trucsdemec.fr
06/03/2020
Summary of the review
T
tuttoandroid.net
08/11/2019
Summary of the review
I
iphoneitalia.com
11/11/2019
Summary of the review
M
macitynet.it
16/11/2019
Summary of the review
S
smartworld.it
02/07/2020
Summary of the review
C
corriere.it
29/09/2020
Summary of the review
T
tomshw.it
23/12/2020
Summary of the review

Third-party reviews

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

What customers like about ECOVACS DEEBOT OZMO 920

  • Efficient simultaneous vacuuming and mopping capabilities
  • Accurate Smart Navi 3.0 LiDAR laser mapping and navigation
  • Automatic carpet detection that intelligently boosts suction power
  • Convenient multi-floor mapping support for up to two saved layouts
  • Seamless smart home integration with Amazon Alexa and Google Assistant
  • Easy customization of no-go and no-mop virtual boundaries via the app
  • Reliable continuous cleaning with auto-recharge and resume functions

What customers don't like about ECOVACS DEEBOT OZMO 920

  • Unreliable smartphone application prone to losing saved maps
  • Taller profile turret that frequently gets stuck under low furniture
  • Inadequate mopping pressure that fails to clear stubborn stains
  • Small dustbin capacity requiring frequent manual emptying
  • Tendency to get tangled in loose charging cables and thick rug lips
  • Relatively high premium price point compared to its performance
  • Brushes wear down quickly and require frequent replacement

Verdict

The ECOVACS DEEBOT OZMO 920 is a 2-in-1 robot vacuum and mop featuring Smart Navi 3.0 laser mapping technology, a 430ml dustbin, a 240ml water tank, and a 3,200mAh battery that delivers up to 110 minutes of runtime. Key pros include its multi-floor mapping capability for storing up to two distinct layouts, automatic carpet detection that doubles its 1,200 Pa suction power on soft surfaces, and a low-profile 93mm height designed to easily slide under low furniture. However, notable cons include its sub-par mopping depth compared to dedicated units, a relatively small battery capacity for very large properties, and occasional software bugs within the companion application.

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