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Olimpia Splendid Mystral E Inverter 9 Review | 46 Data compared

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  • Avg. price: ~£240
  • Cooling capacity: 2.6 kW
  • Seasonal cooling efficiency (SEER): 6.1
  • Maximum indoor-unit sound power level: 52 dB

Olimpia Splendid Mystral E Inverter 9 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.

7.7

Overall score

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 components:

80.0%

7.7

Technical Score

20.0%

?

User score

Very good
7.7

Technical Score

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 components:

40.0%

5.2

Performance

40.0%

9.5

Features

20.0%

9.2

Design

Very good
?

User score

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 components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 9.5
    Compactness

    Score components:

    30.0%

    9.5

    Indoor unit width

    30.0%

    9.5

    Indoor unit depth

    20.0%

    10

    Indoor unit height

    20.0%

    8.9

    Indoor unit weight

  • 8.3
    Bedroom comfort

    Score components:

    40.0%

    ?

    Night mode

    25.0%

    ?

    Timer

    20.0%

    ?

    Maximum timer duration

    15.0%

    10

    Automatic mode

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Best prices in UK

    N/A~ £240

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Olimpia Splendid Mystral E Inverter 9 is a wall-mounted monosplit air conditioner utilizing high-performance inverter technology and eco-friendly R32 refrigerant gas to deliver a cooling capacity of 9,000 BTU/h (approximately 2.63 to 2.7 kW) with a 6.1 SEER rating and an A++ energy efficiency class in cooling. It supports cooling, heating, dehumidification, and ventilation modes, featuring integrated Wi-Fi for mobile app management, an anti-dust filter, an intelligent airflow swing mechanism, and specialized 56°C high-temperature evaporator sterilization to prevent bacterial growth. Key advantages include its highly versatile operation across all seasons, multi-functional remote control with a Follow Me localized temperature sensor, and energy-saving modes like Eco, Gear, and Silent; however, potential downsides include its structural limitation to small or medium rooms up to 20-30m², dependency on stable wireless signals for smart operations, and the requirement of professional split-system installation.

Technical Specifications of air conditioner Olimpia Splendid Mystral E Inverter 9

Technical Score

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 components:

40.0%

?

Performance

40.0%

?

Features

20.0%

?

Design

7.7
Olimpia Splendid Mystral E Inverter 9 has a technical score of 7.68 points, which is higher than 62.9% of products in this category.
User score

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 components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
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.
1.0
Olimpia Splendid Mystral E Inverter 9 has a popularity of 1 points, which is higher than 0% of products in this category.
Ratio quality/price

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 components:

60.0%

7.7

Overall score

40.0%

8.6

Price

8.0
Olimpia Splendid Mystral E Inverter 9 has a quality-to-price ratio of 8 points, which is higher than 93.3% of products in this category.
Split configuration
What it is: Split configuration states how many indoor units are paired with the air-conditioning system, such as mono, dual, triple, quad, or penta split.
When it matters: It matters when you are planning climate control for one room or several rooms from a shared outdoor unit.

Importance: LOW

mono split
Cooling capacity
What it is: Cooling capacity is the rate at which the air conditioner can remove heat from a room, expressed in kilowatts.
When it matters: Adequate capacity is essential for cooling the intended room size without excessive run time or poor temperature control.

Importance: HIGH

Good value: At least 3.5 kW

2.6 kW
Olimpia Splendid Mystral E Inverter 9 delivers a cooling capacity of 2.6 kW, which is lower than that of 74.7% of air conditioners and the same as that of 13.5% of air conditioners.
Indoor-unit capacity configuration
What it is: Indoor-unit capacity configuration shows how the system’s BTU/h capacity is distributed across its indoor units.
When it matters: It matters when sizing a multi-split system for rooms with different cooling loads.

Importance: LOW

9,000 BTU/h
Seasonal cooling efficiency (SEER)
What it is: SEER expresses the air conditioner’s average cooling efficiency over a typical season.
When it matters: A higher SEER generally means less electricity is needed to deliver the same seasonal cooling.

Importance: HIGH

Good value: At least 6.1

6.1
Olimpia Splendid Mystral E Inverter 9 has a SEER rating of 6.1, which is lower than that of 62.2% of air conditioners and the same as that of 34% of air conditioners.
Seasonal heating efficiency (SCOP)
What it is: SCOP expresses the air conditioner’s average heating efficiency over a typical season.
When it matters: A higher SCOP generally means less electricity is needed to provide the same seasonal heating.

Importance: HIGH

Good value: At least 4.0

5.1
Olimpia Splendid Mystral E Inverter 9 has a SCOP rating of 5.1, which is higher than that of 94.9% of air conditioners and the same as that of 3.8% of air conditioners.
Show more
Inverter compressor
What it is: An inverter compressor can vary its operating speed instead of relying only on full-power on and off cycles.
When it matters: Variable compressor output can improve temperature stability, efficiency, and part-load noise.

Importance: HIGH

Good value: yes

yes
Does Olimpia Splendid Mystral E Inverter 9 use an inverter compressor? yes. 12.4% of air conditioners do, while 87.6% do not.
Heating function
What it is: A heating function reverses or supplements normal operation to warm the room.
When it matters: Heating extends seasonal usefulness and can replace a separate spot heater in mild weather.

Importance: MEDIUM

Good value: yes

yes
Can Olimpia Splendid Mystral E Inverter 9 heat the room? yes. 7.3% of air conditioners can, while 92.7% cannot.
Active air purification
What it is: Active air purification uses a dedicated treatment function beyond ordinary passive filtration to improve indoor air quality.
When it matters: It is useful when reducing fine particles, allergens, odors, or other airborne contaminants is a priority.

Importance: LOW

Good value: yes

yes
Does Olimpia Splendid Mystral E Inverter 9 actively purify the air? yes. 73.7% of air conditioners do, while 26.4% do not.
Includes active air purification such as ionization, plasma, or UV treatment.
Dehumidification mode
What it is: Dehumidification mode removes moisture from room air with reduced emphasis on cooling.
When it matters: This mode improves comfort in humid weather and can help control indoor dampness.

Importance: MEDIUM

Good value: yes

yes
Does Olimpia Splendid Mystral E Inverter 9 include dehumidification mode? yes. 6.8% of air conditioners do, while 93.2% do not.
Fan-only mode
What it is: Fan-only mode circulates room air without running the refrigeration cycle.
When it matters: This mode provides lower-power airflow when cooling is unnecessary.

Importance: MEDIUM

Good value: yes

yes
Does Olimpia Splendid Mystral E Inverter 9 offer fan-only mode? yes. 6.2% of air conditioners do, while 93.8% do not.
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Color
What it is: Color identifies the main exterior finish of the indoor unit.
When it matters: Color matters when the indoor unit remains visible and should suit the room decor.

Importance: LOW

white
Body material
What it is: Body material identifies the primary exterior housing material of the indoor unit.
When it matters: Housing material affects appearance, rigidity, cleaning, and resistance to everyday wear.

Importance: LOW

plastic
Display
What it is: A display shows temperature, operating mode, timer, or status information on the indoor unit.
When it matters: A built-in display makes current settings easier to check without opening an app or using the remote.

Importance: LOW

Good value: yes

yes
Olimpia Splendid Mystral E Inverter 9 includes a display (yes); 18% of air conditioners do not, while 82% do.
Display position
What it is: Display position identifies where the integrated display sits on the indoor or main unit.
When it matters: A well-placed display is easier to read from the usual viewing angle without obstructing the room layout.

Importance: LOW

front center
Physical control methods
What it is: Physical control methods identify the supplied remote and user-facing controls on the unit.
When it matters: Physical controls matter when you want to operate the air conditioner without relying on Wi-Fi, an app, or voice control.

Importance: MEDIUM

Good value: remote control and onboard controls

remote control
Olimpia Splendid Mystral E Inverter 9 provides remote control physical controls, ahead of 1.1% of air conditioners and equal to 81.5%.
Show more

Olimpia Splendid Mystral E Inverter 9 vs the average air conditioner

  • 1.1 points higher seasonal heating efficiency
    Olimpia Splendid Mystral E Inverter 9 achieves a higher seasonal heating efficiency (SCOP) than the average air conditioner (5.1 vs 4).
    What it is: SCOP expresses the air conditioner’s average heating efficiency over a typical season.
    When it matters: A higher SCOP generally means less electricity is needed to provide the same seasonal heating.

    Importance: HIGH

    Good value: At least 4.0

    Olimpia Splendid Mystral E Inverter 9 achieves a higher seasonal heating efficiency (SCOP) than the average air conditioner (5.1 vs 4).5.1 vs 4
  • 4 more fan speeds
    Olimpia Splendid Mystral E Inverter 9 provides more fan speed options than the average air conditioner (7 vs 3).
    What it is: The number of selectable fan speeds determines how finely airflow and noise can be adjusted.
    When it matters: More speed settings make it easier to balance cooling intensity, sound, and comfort.

    Importance: MEDIUM

    Good value: At least 3 speeds

    Olimpia Splendid Mystral E Inverter 9 provides more fan speed options than the average air conditioner (7 vs 3).7 vs 3
  • 4 dB lower indoor sound power
    Olimpia Splendid Mystral E Inverter 9 operates with a quieter indoor unit than the average air conditioner (52 dB vs 56 dB).
    What it is: Maximum indoor-unit sound power level measures the greatest acoustic power emitted by the indoor unit.
    When it matters: A lower value supports a quieter room, which is especially useful in bedrooms and workspaces.

    Importance: HIGH

    Good value: Up to 55 dB

    Olimpia Splendid Mystral E Inverter 9 operates with a quieter indoor unit than the average air conditioner (52 dB vs 56 dB).52 dB vs 56 dB
  • Includes an activated carbon filter
    Olimpia Splendid Mystral E Inverter 9 includes an activated carbon filter, while the average air conditioner does not include an activated carbon filter.
    What it is: Indicates whether the air conditioner includes an activated carbon filter for odors and some gases.
    When it matters: When reducing cooking smells, smoke odors, or other unwanted room odors is important.

    Importance: MEDIUM

    Good value: yes

    Olimpia Splendid Mystral E Inverter 9 includes an activated carbon filter, while the average air conditioner does not include an activated carbon filter.
  • 4 cm lower indoor unit
    Olimpia Splendid Mystral E Inverter 9 has a lower indoor-unit height than the average air conditioner (25 cm vs 29 cm).
    What it is: Indoor unit height is the vertical dimension of the wall-mounted indoor unit.
    When it matters: A shorter indoor unit needs less vertical wall space and fits above doors or windows more easily.

    Importance: MEDIUM

    Good value: Up to 30 cm

    Olimpia Splendid Mystral E Inverter 9 has a lower indoor-unit height than the average air conditioner (25 cm vs 29 cm).25 cm vs 29 cm
  • Active air purification
    Does Olimpia Splendid Mystral E Inverter 9 actively purify the air? yes. What about the average air conditioner? no.
    Includes active air purification such as ionization, plasma, or UV treatment.
    What it is: Active air purification uses a dedicated treatment function beyond ordinary passive filtration to improve indoor air quality.
    When it matters: It is useful when reducing fine particles, allergens, odors, or other airborne contaminants is a priority.

    Importance: LOW

    Good value: yes

    Does Olimpia Splendid Mystral E Inverter 9 actively purify the air? yes. What about the average air conditioner? no.
  • 2.8 cm narrower indoor unit
    Olimpia Splendid Mystral E Inverter 9 has a narrower indoor unit than the average air conditioner (77.7 cm vs 80.5 cm).
    What it is: Indoor unit width is the horizontal side-to-side dimension of the wall-mounted unit.
    When it matters: A narrower indoor unit fits more easily on limited wall sections and between furniture or openings.

    Importance: MEDIUM

    Good value: Up to 80 cm

    Olimpia Splendid Mystral E Inverter 9 has a narrower indoor unit than the average air conditioner (77.7 cm vs 80.5 cm).77.7 cm vs 80.5 cm
  • 2.08x cheaper
    Olimpia Splendid Mystral E Inverter 9 is cheaper than the average air conditioner (£240 vs £500).
    Olimpia Splendid Mystral E Inverter 9 is cheaper than the average air conditioner (£240 vs £500).£240 vs £500
  • 1.1 points higher seasonal heating efficiency
    Olimpia Splendid Mystral E Inverter 9 achieves a higher seasonal heating efficiency (SCOP) than the average air conditioner (5.1 vs 4).
  • 4 dB lower indoor sound power
    Olimpia Splendid Mystral E Inverter 9 operates with a quieter indoor unit than the average air conditioner (52 dB vs 56 dB).
  • 4 more fan speeds
    Olimpia Splendid Mystral E Inverter 9 provides more fan speed options than the average air conditioner (7 vs 3).
  • Includes an activated carbon filter
    Olimpia Splendid Mystral E Inverter 9 includes an activated carbon filter, while the average air conditioner does not include an activated carbon filter.
  • Active air purification
    Does Olimpia Splendid Mystral E Inverter 9 actively purify the air? yes. What about the average air conditioner? no.
  • 4 cm lower indoor unit
    Olimpia Splendid Mystral E Inverter 9 has a lower indoor-unit height than the average air conditioner (25 cm vs 29 cm).
  • 2.8 cm narrower indoor unit
    Olimpia Splendid Mystral E Inverter 9 has a narrower indoor unit than the average air conditioner (77.7 cm vs 80.5 cm).
  • 0.4 cm shallower indoor unit
    Olimpia Splendid Mystral E Inverter 9 has a shallower indoor unit than the average air conditioner (20.1 cm vs 20.5 cm).

Total
Overall
Performance
Features
Design
  • 0.9 kW lower cooling capacity
    Olimpia Splendid Mystral E Inverter 9 delivers a lower cooling capacity than the average air conditioner (2.6 kW vs 3.5 kW).
  • 0.2 points lower seasonal cooling efficiency
    Olimpia Splendid Mystral E Inverter 9 has a lower seasonal cooling efficiency (SEER) than the average air conditioner (6.1 vs 6.3).
  • 85 m³/h lower indoor-unit airflow
    Olimpia Splendid Mystral E Inverter 9 delivers a lower indoor airflow rate than the average air conditioner (510 m³/h vs 595 m³/h).
  • 5 m² smaller room coverage
    Olimpia Splendid Mystral E Inverter 9 covers a smaller room area than the average air conditioner (30 m² vs 35 m²).
  • Does not support comfort airflow mode
    Olimpia Splendid Mystral E Inverter 9 does not support comfort airflow mode, while the average air conditioner supports comfort airflow mode.
  • Does not support voice control
    Olimpia Splendid Mystral E Inverter 9 does not support voice control, while the average air conditioner supports voice control.
  • 19.5% heavier indoor unit
    Olimpia Splendid Mystral E Inverter 9 has a heavier indoor unit than the average air conditioner (10.4 kg vs 8.7 kg).
  • Does not support comfort airflow mode
    Olimpia Splendid Mystral E Inverter 9 does not support comfort airflow mode, while the average air conditioner supports comfort airflow mode.
    What it is: Indicates whether the air conditioner provides a comfort airflow mode that avoids blowing directly on people.
    When it matters: When you want comfortable cooling without a direct draft on people in the room.

    Importance: MEDIUM

    Good value: yes

    Olimpia Splendid Mystral E Inverter 9 does not support comfort airflow mode, while the average air conditioner supports comfort airflow mode.
  • 0.9 kW lower cooling capacity
    Olimpia Splendid Mystral E Inverter 9 delivers a lower cooling capacity than the average air conditioner (2.6 kW vs 3.5 kW).
    What it is: Cooling capacity is the rate at which the air conditioner can remove heat from a room, expressed in kilowatts.
    When it matters: Adequate capacity is essential for cooling the intended room size without excessive run time or poor temperature control.

    Importance: HIGH

    Good value: At least 3.5 kW

    Olimpia Splendid Mystral E Inverter 9 delivers a lower cooling capacity than the average air conditioner (2.6 kW vs 3.5 kW).2.6 kW vs 3.5 kW
  • 0.2 points lower seasonal cooling efficiency
    Olimpia Splendid Mystral E Inverter 9 has a lower seasonal cooling efficiency (SEER) than the average air conditioner (6.1 vs 6.3).
    What it is: SEER expresses the air conditioner’s average cooling efficiency over a typical season.
    When it matters: A higher SEER generally means less electricity is needed to deliver the same seasonal cooling.

    Importance: HIGH

    Good value: At least 6.1

    Olimpia Splendid Mystral E Inverter 9 has a lower seasonal cooling efficiency (SEER) than the average air conditioner (6.1 vs 6.3).6.1 vs 6.3
  • Does not support voice control
    Olimpia Splendid Mystral E Inverter 9 does not support voice control, while the average air conditioner supports voice control.
    What it is: Indicates whether the air conditioner can be operated through supported voice assistants.
    When it matters: When hands-free temperature changes and smart-home voice routines are useful.

    Importance: LOW

    Good value: yes

    Olimpia Splendid Mystral E Inverter 9 does not support voice control, while the average air conditioner supports voice control.
  • 19.5% heavier indoor unit
    Olimpia Splendid Mystral E Inverter 9 has a heavier indoor unit than the average air conditioner (10.4 kg vs 8.7 kg).
    What it is: Indoor unit weight is the net mass of the wall-mounted indoor component.
    When it matters: A lighter indoor unit is easier to lift and places less load on the mounting surface during installation.

    Importance: HIGH

    Good value: Up to 10 kg

    Olimpia Splendid Mystral E Inverter 9 has a heavier indoor unit than the average air conditioner (10.4 kg vs 8.7 kg).10.4 kg vs 8.7 kg
  • 85 m³/h lower indoor-unit airflow
    Olimpia Splendid Mystral E Inverter 9 delivers a lower indoor airflow rate than the average air conditioner (510 m³/h vs 595 m³/h).
    What it is: Maximum indoor-unit airflow is the greatest volume of air the indoor unit can circulate in one hour.
    When it matters: Higher airflow can distribute cooled or heated air more quickly, especially in larger rooms.

    Importance: HIGH

    Good value: At least 600 m³/h

    Olimpia Splendid Mystral E Inverter 9 delivers a lower indoor airflow rate than the average air conditioner (510 m³/h vs 595 m³/h).510 m³/h vs 595 m³/h
  • 5 m² smaller room coverage
    Olimpia Splendid Mystral E Inverter 9 covers a smaller room area than the average air conditioner (30 m² vs 35 m²).
    What it is: Maximum recommended room area is the largest floor area the manufacturer recommends for effective operation.
    When it matters: It helps match the system to the intended room size and avoid choosing an undersized unit.

    Importance: LOW

    Good value: At least 35 m²

    Olimpia Splendid Mystral E Inverter 9 covers a smaller room area than the average air conditioner (30 m² vs 35 m²).30 m² vs 35 m²
Total
Performance
Features
Design

Graphic comparison of Olimpia Splendid Mystral E Inverter 9 and other products in the Air Conditioners category

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Third-party reviews

What customers like about Olimpia Splendid Mystral E Inverter 9?

  • High energy efficiency, achieving an A++ energy class in cooling.
  • Utilizes eco-friendly R-32 refrigerant.
  • Very quiet operation, especially noticeable in sleep/silent modes.
  • Rapidly modifies room temperature to provide stable and consistent comfort.
  • Includes a 56°C sterilization cycle that prevents mold and bacteria growth.
  • Integrated Wi-Fi allows for convenient management via smartphone.

What customers dislike about Olimpia Splendid Mystral E Inverter 9?

  • Some users report that the initial setup and configuration of the built-in Wi-Fi and app can be slightly finicky.
  • Like most fixed split systems, professional installation is required.
  • Can struggle to maintain optimal temperatures extremely quickly on days of peak or extreme heat.

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