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Xiaomi Mi Smart Humidifier 2 Review | 43 Data compared

Avg. price:~£45Humidification rate:350 ml/hMaximum room area:25 m²Water tank capacity:4.5 LMaximum operating time:32 hoursMaximum noise level:38 dB

Xiaomi Mi Smart Humidifier 2 Review: Compare 43 technical specifications and user reviews to see how this product ranks in the Humidifiers category and whether it is worth buying.

Xiaomi Mi Smart Humidifier 2
7.6/10

Overall score

Score
7.6/ 10
✕
What it is
An overall evaluation of products in the Humidifiers category, based on technical analysis and user reviews.
When it matters
When you need a quick reference for identifying the best products in the Humidifiers category.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 76% of models
Score components

80%

7.6

Technical score

20%

7.4

User score

â–²Better than 76% of humidifiers
8.1

Value for money

Value for money
8.1/ 10
✕
What it is
An indicator that combines the overall score of products in the Humidifiers category with their prices.
When it matters
When you are comparing products in the Humidifiers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 75% of models
Score components

70%

7.6

Overall score

30%

9.4

Price

â–²Better than 75%
7.6

Technical score

Technical score
7.6/ 10
✕
What it is
An assessment of technical performance for products in the Humidifiers category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Humidifiers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 76% of models
Score components

45%

7.0

Performance

40%

8.5

Features

15%

7.0

Design

â–²Better than 76%
7.4

User score

User score
7.4/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Humidifiers category.
When it matters
When you want to know how products in the Humidifiers category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 79% of models
Score components

70%

8.0

User ratings

30%

6.0

Number of reviews

Based on ratings from across the web.
â–¼Worse than 79%
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Best prices
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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.
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Technical Specifications of humidifier Xiaomi Mi Smart Humidifier 2

Technical score
Technical score
7.6/ 10
✕
What it is
An assessment of technical performance for products in the Humidifiers category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Humidifiers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 76% of models
Score components:

45%

7.0

Performance

40%

8.5

Features

15%

7.0

Design

7.6
User score
User score
7.4/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Humidifiers category.
When it matters
When you want to know how products in the Humidifiers category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 79% of models
Score components

70%

8.0

User ratings

30%

6.0

Number of reviews

Based on ratings from across the web.
7.4
Popularity
Popularity
6.0/ 10
✕
What it is
An indicator based on the number of reviews received by products in the Humidifiers category.
When it matters
When you prefer products in the Humidifiers category that have been chosen and reviewed by many other buyers.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 59% of models
Popularity:
Xiaomi Mi Smart Humidifier 2 has a popularity score of 6 points, which is lower than 57.1% of products in this category.
6.0
Value for money
Value for money
8.1/ 10
✕
What it is
An indicator that combines the overall score of products in the Humidifiers category with their prices.
When it matters
When you are comparing products in the Humidifiers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 75% of models
Score components:

70%

7.6

Overall score

30%

9.4

Price

8.1
Technology
ultrasonic
Humidification rate
350 ml/h
Market range: <50 ml/h – >500 ml/h
This humidifier delivers a humidification rate of 350 ml/h, which is higher than that of 75.7% of humidifiers and equal to that of 5.7% of humidifiers.
Maximum room area
25 m²
Market range: <20 m² – >60 m²
This humidifier covers rooms up to 25 m², which is smaller than that of 73.9% of humidifiers and equal to that of 6.3% of humidifiers.
Water tank capacity
4.5 L
Market range: <0.4 L – >6.5 L
This humidifier has a water tank capacity of 4.5 L, which is larger than that of 67.1% of humidifiers and equal to that of 4.7% of humidifiers.
Maximum operating time
32 hours
Market range: <8 hours – >60 hours
This humidifier runs for up to 32 hours on a single fill, which is longer than 66.4% of humidifiers and equal to that of 0.7% of humidifiers.
Show more
Warm mist function
no
This humidifier does not offer a warm-mist option. A warm-mist option is present in 26.2% of humidifiers.
Aromatherapy support
yes
This humidifier supports aromatherapy. Aromatherapy support is available in 73.8% of humidifiers.
Dedicated aroma compartment
yes
This humidifier includes a dedicated aroma compartment. A dedicated aroma compartment is present in 48.3% of humidifiers.
Includes dedicated aroma hardware such as a tray, pad, drawer, or compartment.
Automatic low-water shut-off
yes
This humidifier shuts off automatically when water runs low. Automatic low-water shut-off is available in 99.3% of humidifiers.
Water level indicator
yes
This humidifier includes a water-level indicator. A water-level indicator is present in 83.9% of humidifiers.
Show more
Fill type
top fill
Color
white
Material
ABS
360° nozzle
yes
This humidifier has a 360° nozzle. A 360° nozzle is included in 57.7% of humidifiers.
Display
no
This humidifier does not have a display. A display is included in 44.3% of humidifiers.
Show more

Xiaomi Mi Smart Humidifier 2 vs the average humidifier

246810TotalPerformanceFeaturesDesign
  • Wi-Fi control
    This humidifier supports Wi-Fi control; the average humidifier does not support Wi-Fi control.
  • Voice control supported
    This humidifier supports voice control; the average humidifier does not support voice control.
    Supports Amazon Alexa and Google Assistant.
  • Hygrostat included
    This humidifier has a hygrostat; the average humidifier has no hygrostat.
  • 34.6% higher humidification rate
    This humidifier delivers a higher humidification rate than the average humidifier (350 ml/h vs 260 ml/h).
    350 ml/h vs 260 ml/h
  • Washable filter
    This humidifier includes a washable filter; the average humidifier does not include a washable filter.
  • Dedicated aroma compartment
    This humidifier includes a dedicated aroma compartment; the average humidifier does not include a dedicated aroma compartment.
    Includes dedicated aroma hardware such as a tray, pad, drawer, or compartment.
  • 1.15 L larger water tank
    This humidifier has a larger water tank than the average humidifier (4.5 L vs 3.35 L).
    4.5 L vs 3.35 L
  • 8 hours longer runtime
    This humidifier runs longer on a single fill than the average humidifier (32 hours vs 24 hours).
    32 hours vs 24 hours
  • 7.1% better value for money
    Xiaomi Mi Smart Humidifier 2 offers better value for money than the average humidifier (8.1 vs 7.6).
    8.1 vs 7.56
  • Hygrostat included
    This humidifier has a hygrostat; the average humidifier has no hygrostat.
  • 34.6% higher humidification rate
    This humidifier delivers a higher humidification rate than the average humidifier (350 ml/h vs 260 ml/h).
    350 ml/h vs 260 ml/h
  • 1.15 L larger water tank
    This humidifier has a larger water tank than the average humidifier (4.5 L vs 3.35 L).
    4.5 L vs 3.35 L
  • 8 hours longer runtime
    This humidifier runs longer on a single fill than the average humidifier (32 hours vs 24 hours).
    32 hours vs 24 hours
  • Wi-Fi control
    This humidifier supports Wi-Fi control; the average humidifier does not support Wi-Fi control.
  • Voice control supported
    This humidifier supports voice control; the average humidifier does not support voice control.
    Supports Amazon Alexa and Google Assistant.
  • Washable filter
    This humidifier includes a washable filter; the average humidifier does not include a washable filter.
  • Dedicated aroma compartment
    This humidifier includes a dedicated aroma compartment; the average humidifier does not include a dedicated aroma compartment.
    Includes dedicated aroma hardware such as a tray, pad, drawer, or compartment.
  • 12 hours longer timer
    This humidifier provides a longer timer setting than the average humidifier (24 hours vs 12 hours).
    24 hours vs 12 hours
  • 0.56 cm narrower body
    This humidifier has a narrower body than the average humidifier (19 cm vs 19.6 cm).
    19 cm vs 19.555 cm
  • 4.9 dB higher maximum noise
    This humidifier is louder at maximum output than the average humidifier (38 dB vs 33.1 dB).
    38 dB vs 33.1 dB
  • 6 m² less room coverage
    This humidifier covers smaller rooms than the average humidifier (25 m² vs 31 m²).
    25 m² vs 31 m²
  • No LED lighting
    This humidifier does not feature LED lighting; the average humidifier features LED lighting.
  • 4 W higher power draw
    This humidifier draws more power than the average humidifier (28 W vs 24 W).
    28 W vs 24 W
  • 4.52 cm taller body
    This humidifier stands taller than the average humidifier (33.5 cm vs 28.98 cm).
    33.5 cm vs 28.98 cm
  • 10 % RH lower target humidity
    This humidifier supports a lower maximum target humidity than the average humidifier (70 % RH vs 80 % RH).
    70 % RH vs 80 % RH
  • 0.01 m shorter power cable
    This humidifier has a shorter power cable than the average humidifier (1.5 m vs 1.51 m).
    1.5 m vs 1.51 m
  • 7.9% lower user score
    User score
    7.4/ 10
    ✕
    What it is
    A rating that combines user reviews with the total review volume for products in the Humidifiers category.
    When it matters
    When you want to know how products in the Humidifiers category perform in everyday use and how reliable owners find them over time.
    Score distribution
    ▼▼
    <55-66-77-88-99-10
    Xiaomi Mi Smart Humidifier 2
    the average humidifier
    Xiaomi Mi Smart Humidifier 2 has a lower user score than the average humidifier (7.41 vs 8.000).
    7.41 vs 8
  • 7.9% lower user score
    User score
    7.4/ 10
    ✕
    What it is
    A rating that combines user reviews with the total review volume for products in the Humidifiers category.
    When it matters
    When you want to know how products in the Humidifiers category perform in everyday use and how reliable owners find them over time.
    Score distribution
    ▼▼
    <55-66-77-88-99-10
    Xiaomi Mi Smart Humidifier 2
    the average humidifier
    Xiaomi Mi Smart Humidifier 2 has a lower user score than the average humidifier (7.41 vs 8.000).
    7.41 vs 8
  • 5.9% less popular
    Xiaomi Mi Smart Humidifier 2 is less popular than the average humidifier (6.04 vs 6.4).
    6.04 vs 6.4
  • 28.6% more expensive
    Xiaomi Mi Smart Humidifier 2 is more expensive than the average humidifier (£45 vs £35).
    £45 vs £35
  • 4.9 dB higher maximum noise
    This humidifier is louder at maximum output than the average humidifier (38 dB vs 33.1 dB).
    38 dB vs 33.1 dB
  • 6 m² less room coverage
    This humidifier covers smaller rooms than the average humidifier (25 m² vs 31 m²).
    25 m² vs 31 m²
  • 4 W higher power draw
    This humidifier draws more power than the average humidifier (28 W vs 24 W).
    28 W vs 24 W
  • 10 % RH lower target humidity
    This humidifier supports a lower maximum target humidity than the average humidifier (70 % RH vs 80 % RH).
    70 % RH vs 80 % RH
  • No LED lighting
    This humidifier does not feature LED lighting; the average humidifier features LED lighting.
  • 4.52 cm taller body
    This humidifier stands taller than the average humidifier (33.5 cm vs 28.98 cm).
    33.5 cm vs 28.98 cm
  • 0.01 m shorter power cable
    This humidifier has a shorter power cable than the average humidifier (1.5 m vs 1.51 m).
    1.5 m vs 1.51 m
  • 0.75 cm deeper body
    This humidifier has a deeper profile than the average humidifier (19 cm vs 18.25 cm).
    19 cm vs 18.25 cm
  • 6.1% heavier
    This humidifier is heavier than the average humidifier (1.6 kg vs 1.48 kg).
    1.57 kg vs 1.48 kg

Video reviews

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

Expert reviews

In-depth analysis and verdict from leading tech publications

S
stern.de
03/02/2026
Summary of the review
Humidifier Review: Five Top Models Compared by stern
(Translated)Show original

Third-party reviews

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

What we like about Xiaomi Mi Smart Humidifier 2

  • Large 4.5L water tank capacity allows for long continuous runtime without frequent refills.
  • Very quiet operation (around 32dB), making it highly suitable for use in bedrooms at night.
  • Convenient top-filling design allows water to be added easily without removing the lid.
  • Seamless integration with the Xiaomi Home app and voice assistants like Alexa for remote control and automation.
  • Powerful mist output (up to 350 ml/h) that quickly relieves dryness in medium-to-large rooms.
  • Built-in UV-C sterilization system effectively eliminates bacteria for a cleaner mist.
  • Features a 360-degree adjustable dual rotating mist nozzle for efficient distribution.
  • Includes a dedicated aromatherapy compartment for adding essential oils.

What we don't like about Xiaomi Mi Smart Humidifier 2

  • The power cord is permanently attached and criticized by some users for being too short.
  • The 'keep constant humidity' algorithm doesn't turn off completely; it only drops to the minimum level, which can over-humidify small rooms.
  • The Xiaomi Home smartphone app requires an extensive number of device permissions during the initial setup.
  • Smart scheduling features fail to trigger if the local Wi-Fi network disconnects or turns off at night.
  • The internal compartments have tight areas that can make thorough deep cleaning somewhat demanding.
  • The built-in temperature sensor readings can occasionally be slightly inaccurate.
  • Occasional user complaints regarding localized leaking or condensation if not placed properly.

Verdict

The Xiaomi Smart Humidifier 2 is an ultrasonic air humidifier featuring a 4.5L water tank, a 350 mL/h humidification rate, and a 28W rated power input. Main characteristics and pros include integrated UV-C ultraviolet technology that eliminates up to 99.9% of bacteria in the water, a 360-degree adjustable dual rotating mist dispenser, a dedicated hidden aromatherapy box, a continuous runtime of up to 32 hours, a convenient top-fill design, and smart Wi-Fi control via the Mi Home app. It operates quietly at a noise level of 32 to 38 dB, though a key con is its lack of a built-in display to show the room's current ambient humidity percentage directly on the unit, forcing users to rely on the smartphone app or external Xiaomi sensors to track specific humidity metrics.

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