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Products in this category are scored under Frontum Air Conditioners Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
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SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner Review | 46 Data compared

Avg. price:~£340Cooling capacity:3.52 kWSeasonal cooling efficiency (SEER):?Maximum indoor-unit sound power level:?

SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner Review: Compare 46 technical specifications and user reviews to see how this product ranks in the Air Conditioners category and whether it is worth buying.

SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner
7.3/10

Overall score

Score
7.3/ 10
✕
What it is
An overall evaluation of products in the Air Conditioners category, based on technical analysis and user reviews.
When it matters
When you need a quick reference for identifying the best products in the Air Conditioners category.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

80%

7.0

Technical score

20%

8.7

User score

â–¼Worse than 65% of air conditioners
7.4

Value for money

Value for money
7.4/ 10
✕
What it is
An indicator that combines the overall score of products in the Air Conditioners category with their prices.
When it matters
When you are comparing products in the Air Conditioners category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

7.3

Overall score

30%

7.6

Price

â–²Better than 69%
7.0

Technical score

Technical score
7.0/ 10
✕
What it is
An assessment of technical performance for products in the Air Conditioners category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Air Conditioners category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

40%

6.4

Performance

40%

7.6

Features

20%

6.9

Design

â–¼Worse than 81%
8.7

User score

User score
8.7/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Air Conditioners category.
When it matters
When you want to know how products in the Air Conditioners category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

8.2

User ratings

30%

10

Number of reviews

Based on ratings from across the web.
â–²Better than 83%
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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 air conditioner SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner

Technical score
Technical score
7.0/ 10
✕
What it is
An assessment of technical performance for products in the Air Conditioners category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Air Conditioners category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
Score components:

40%

6.4

Performance

40%

7.6

Features

20%

6.9

Design

7.0
User score
User score
8.7/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Air Conditioners category.
When it matters
When you want to know how products in the Air Conditioners category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
Score components

70%

8.2

User ratings

30%

10

Number of reviews

Based on ratings from across the web.
8.7
Popularity
Popularity
10/ 10
✕
What it is
An indicator based on the number of reviews received by products in the Air Conditioners category.
When it matters
When you prefer products in the Air Conditioners category that have been chosen and reviewed by many other buyers.
Score distribution
â–¼
<55-66-77-88-99-10
Popularity:
SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner has a popularity score of 10 points, which is higher than 91.6% of products in this category.
10
Value for money
Value for money
7.4/ 10
✕
What it is
An indicator that combines the overall score of products in the Air Conditioners category with their prices.
When it matters
When you are comparing products in the Air Conditioners category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
Score components:

70%

7.3

Overall score

30%

7.6

Price

7.4
Split configuration
penta split
Cooling capacity
3.52 kW
This air conditioner delivers a cooling capacity of 3.52 kW, which is higher than that of 66.5% of air conditioners and the same as that of 1.8% of air conditioners.
Indoor-unit capacity configuration
12,000 BTU/h
Seasonal cooling efficiency (SEER)
?
Seasonal heating efficiency (SCOP)
?
Show more
Inverter compressor
no
Does this air conditioner use an inverter compressor? no. 88.2% of air conditioners do not, while 11.8% do.
Heating function
no
Can this air conditioner heat the room? no. 93.2% of air conditioners cannot, while 6.8% can.
Active air purification
no
Does this air conditioner actively purify the air? no. 27% of air conditioners do not, while 73.1% do.
Dehumidification mode
yes
Does this air conditioner include dehumidification mode? yes. 6.8% of air conditioners do, while 93.2% do not.
Fan-only mode
yes
Does this air conditioner offer fan-only mode? yes. 6.2% of air conditioners do, while 93.8% do not.
Show more
Color
white
Body material
plastic
Display
yes
This air conditioner includes a display (yes); 18% of air conditioners do not, while 82% do.
Display position
top
Physical control methods
remote control and onboard controls
This air conditioner provides remote control and onboard controls physical controls, ahead of 83.2% of air conditioners and equal to 16.9%.
Show more

SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner vs the average air conditioner

246810TotalPerformanceFeaturesDesign
  • Broader physical control options
    For physical control setup, this air conditioner lists remote control and onboard controls, while the average air conditioner lists remote control.
    remote control and onboard controls vs remote control
  • 36.3 cm narrower indoor unit
    This air conditioner has a narrower indoor unit than the average air conditioner (44.2 cm vs 80.5 cm).
    44.2 cm vs 80.5 cm
  • 10x more popular
    SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner is more popular than the average air conditioner (10 vs 1).
    10 vs 1
  • 0.02 kW higher cooling capacity
    This air conditioner delivers a higher cooling capacity than the average air conditioner (3.5 kW vs 3.5 kW).
    3.52 kW vs 3.5 kW
  • 9.3% higher user score
    User score
    8.7/ 10
    ✕
    What it is
    A rating that combines user reviews with the total review volume for products in the Air Conditioners category.
    When it matters
    When you want to know how products in the Air Conditioners category perform in everyday use and how reliable owners find them over time.
    Score distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner
    the average air conditioner
    SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner has a higher user score than the average air conditioner (8.75 vs 8.000).
    8.75 vs 8
  • 47.1% cheaper
    SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner is cheaper than the average air conditioner (£340 vs £500).
    £340 vs £500
  • 0.3 m² larger room coverage
    This air conditioner covers a larger room area than the average air conditioner (35.3 m² vs 35 m²).
    35.303 m² vs 35 m²
  • 4.1% better value for money
    SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner offers better value for money than the average air conditioner (7.41 vs 7.1).
    7.41 vs 7.12
  • 10x more popular
    SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner is more popular than the average air conditioner (10 vs 1).
    10 vs 1
  • 9.3% higher user score
    User score
    8.7/ 10
    ✕
    What it is
    A rating that combines user reviews with the total review volume for products in the Air Conditioners category.
    When it matters
    When you want to know how products in the Air Conditioners category perform in everyday use and how reliable owners find them over time.
    Score distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner
    the average air conditioner
    SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner has a higher user score than the average air conditioner (8.75 vs 8.000).
    8.75 vs 8
  • 47.1% cheaper
    SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner is cheaper than the average air conditioner (£340 vs £500).
    £340 vs £500
  • 4.1% better value for money
    SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner offers better value for money than the average air conditioner (7.41 vs 7.1).
    7.41 vs 7.12
  • 0.02 kW higher cooling capacity
    This air conditioner delivers a higher cooling capacity than the average air conditioner (3.5 kW vs 3.5 kW).
    3.52 kW vs 3.5 kW
  • 0.3 m² larger room coverage
    This air conditioner covers a larger room area than the average air conditioner (35.3 m² vs 35 m²).
    35.303 m² vs 35 m²
  • Broader physical control options
    For physical control setup, this air conditioner lists remote control and onboard controls, while the average air conditioner lists remote control.
    remote control and onboard controls vs remote control
  • 36.3 cm narrower indoor unit
    This air conditioner has a narrower indoor unit than the average air conditioner (44.2 cm vs 80.5 cm).
    44.2 cm vs 80.5 cm
  • No inverter compressor
    Does this air conditioner use an inverter compressor? no. Does the average air conditioner? yes.
  • Does not support automatic self-cleaning
    This air conditioner does not support automatic self-cleaning, while the average air conditioner supports automatic self-cleaning.
  • 235 m³/h lower indoor-unit airflow
    This air conditioner delivers a lower indoor airflow rate than the average air conditioner (360 m³/h vs 595 m³/h).
    360 m³/h vs 595 m³/h
  • 52.5 cm taller indoor unit
    This air conditioner has a taller indoor-unit height than the average air conditioner (81.5 cm vs 29 cm).
    81.5 cm vs 29 cm
  • 13.5 cm deeper indoor unit
    This air conditioner has a deeper indoor unit than the average air conditioner (34 cm vs 20.5 cm).
    34 cm vs 20.5 cm
  • No heating function
    Can this air conditioner heat the room? no. Can the average air conditioner? yes.
  • Does not support voice control
    This air conditioner does not support voice control, while the average air conditioner supports voice control.
  • 235 m³/h lower indoor-unit airflow
    This air conditioner delivers a lower indoor airflow rate than the average air conditioner (360 m³/h vs 595 m³/h).
    360 m³/h vs 595 m³/h
  • No inverter compressor
    Does this air conditioner use an inverter compressor? no. Does the average air conditioner? yes.
  • Does not support automatic self-cleaning
    This air conditioner does not support automatic self-cleaning, while the average air conditioner supports automatic self-cleaning.
  • No heating function
    Can this air conditioner heat the room? no. Can the average air conditioner? yes.
  • Does not support voice control
    This air conditioner does not support voice control, while the average air conditioner supports voice control.
  • 52.5 cm taller indoor unit
    This air conditioner has a taller indoor-unit height than the average air conditioner (81.5 cm vs 29 cm).
    81.5 cm vs 29 cm
  • 13.5 cm deeper indoor unit
    This air conditioner has a deeper indoor unit than the average air conditioner (34 cm vs 20.5 cm).
    34 cm vs 20.5 cm

Video reviews

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

Expert reviews

In-depth analysis and verdict from leading tech publications

Y
yourbestdigs.com
02/05/2022
Summary of the review

Third-party reviews

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

What we like about SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner

  • Effective and powerful cooling performance for targeted individual rooms
  • Easy to install and set up with minimal effort
  • Good mobility due to lightweight body design and smooth rolling caster wheels
  • Versatile 4-in-1 functionality offering cooling, heating, dehumidifying, and fan modes
  • Convenient operation via an intuitive control panel and included remote control
  • Excellent quality-to-price ratio making it a cost-effective choice

What we don't like about SereneLife SLACHT128EU 12000 BTU Portable Air Conditioner

  • Somewhat noisy operational sound from the compressor and high fan speeds
  • Not powerful enough to efficiently cool large open-concept spaces or multiple rooms
  • Requires regular upkeep including draining excess water in highly humid environments
  • Some small plastic setup components feel less durable than the main unit body
  • Single-hose design creates negative air pressure by venting internal air outside

Verdict

The SereneLife 12000 BTU Mobile Air Conditioner is a versatile 3-in-1 climate control system featuring cooling, a 3-speed fan, and a built-in dehumidifier capable of removing up to 1.5 to 1.8 litres of moisture per hour. Designed to efficiently cool spaces up to 450 to 550 square feet with an airflow rate of up to 370 m³/h, the unit stands out for its user-friendly digital touch button LED panel, smart Wi-Fi application connectivity, a 24-hour programmable timer, and smooth-gliding caster wheels for seamless room-to-room portability. Key pros include a self-evaporating system that minimizes manual drainage, an auto-swing vent for balanced airflow, and a relatively comfortable noise level of 56 to 57 decibels on its standard settings. However, notable cons include its bulky 28.7 kg weight, a non-backlit remote control that is difficult to navigate in the dark, and high daily energy consumption when operating continuously in larger or poorly insulated spaces.

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