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Siemens SN23HI02KE Review | 59 Data compared

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  • Avg. price in UK: ~£550
  • Avg. price in US: ~$650
  • No. of place settings: 13
  • Energy efficiency class: D
  • Noise level: 42 dB
  • Overflow protection: yes
  • Height adjustable top basket: yes

Siemens SN23HI02KE review. Compare 59 technical specifications and user reviews to see how this product ranks in the Dishwashers category and whether it is worth buying.

7.7

Overall score

What it is: An overall evaluation of products in the Dishwashers category, based on technical analysis and user reviews.

When it matters: When you need a quick reference for identifying the best products in the Dishwashers category.

Score components:

80.0%

7.8

Technical Score

20.0%

7.3

User score

Very good
7.8

Technical Score

What it is: An assessment of technical performance for products in the Dishwashers category across these key areas: Performance, Programmes, Features, Design.

When it matters: When you want to compare products in the Dishwashers category by technical performance, specifications, and available features.

Score components:

35.0%

8.1

Performance

30.0%

7.8

Features

25.0%

7.6

Programmes

10.0%

7.2

Design

Very good
7.3

User score

What it is: A rating that combines user reviews with the total review volume for products in the Dishwashers category.

When it matters: When you want to know how products in the Dishwashers category perform in everyday use and how reliable owners find them over time.

Score components:

70.0%

10

User reviews

30.0%

1.0

Popularity

User score:
United Kingdom
amazon
5.0
(1)

(Reviews last updated: August 2026)

Very good
  • 7.0
    Efficient operation

    Score components:

    35.0%

    3.8

    Energy consumption per cycle

    25.0%

    10

    Water usage per cycle

    20.0%

    7.0

    Energy efficiency class

    10.0%

    10

    Noise level

    10.0%

    8.2

    No. of place settings

  • 8.3
    Quiet operation

    Score components:

    45.0%

    10

    Noise level

    20.0%

    8.0

    Noise emission class

    15.0%

    7.0

    Energy efficiency class

    10.0%

    3.8

    Energy consumption per cycle

    10.0%

    8.2

    No. of place settings

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Best prices in UK

Best rankings

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

Verdict

The Siemens SN23HI02KE iQ300 is a 60 cm freestanding dishwasher with capacity for 13 place settings, an iQdrive motor, and quiet 42 dB operation. It offers six programmes, four special options, 9 litres of water use per Eco cycle, and a Class D rating at 84 kWh per 100 cycles. Benefits include Home Connect remote control, flexible varioFlex baskets, and varioSpeed Plus for faster washing and drying. Drawbacks are the middling Class D efficiency, an Eco cycle lasting around four and a half hours, and a conventional cutlery basket rather than a third upper tray.

Technical Specifications of dishwasher Siemens SN23HI02KE

Technical Score

What it is: An assessment of technical performance for products in the Dishwashers category across these key areas: Performance, Programmes, Features, Design.

When it matters: When you want to compare products in the Dishwashers category by technical performance, specifications, and available features.

Score components:

35.0%

8.1

Performance

30.0%

7.8

Features

25.0%

7.6

Programmes

10.0%

7.2

Design

7.8
Siemens SN23HI2KE has a technical score of 7.8 points, which is higher than 51.8% 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 Dishwashers category.

When it matters: When you want to know how products in the Dishwashers category perform in everyday use and how reliable owners find them over time.

Score components:

70.0%

10

User reviews

30.0%

1.0

Popularity

User score:
United Kingdom
amazon
5.0
(1)

(Reviews last updated: August 2026)

7.3
Siemens SN23HI2KE has a user score of 7.3 points, which is lower than 93.7% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by products in the Dishwashers category.
When it matters: When you prefer products in the Dishwashers category that have been chosen and reviewed by many other buyers.
1.0
Siemens SN23HI2KE 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 Dishwashers category with their prices.

When it matters: When you are comparing products in the Dishwashers category and want a good balance between quality and price.

Score components:

60.0%

7.7

Overall score

40.0%

7.6

Price

7.7
Siemens SN23HI2KE has a quality-to-price ratio of 7.7 points, which is lower than 60.5% of products in this category.
Energy efficiency class
What it is: This attribute refers to Energy efficiency class.
When it matters: This matters if you have a preference for this specification.

Importance: HIGH

D
Siemens SN23HI2KE has energy efficiency class D, which is better than that of 32.5% of dishwashers and equal to that of 21.4% of dishwashers.
Washing efficiency class
What it is: This attribute refers to Washing efficiency class.
When it matters: This matters if you have a preference for this specification.

Importance: MEDIUM

A
Siemens SN23HI2KE has washing efficiency class A, which is better than that of 1.1% of dishwashers and equal to that of 98.9% of dishwashers.
Drying efficiency class
What it is: This attribute refers to Drying efficiency class.
When it matters: This matters if you have a preference for this specification.

Importance: MEDIUM

A
Siemens SN23HI2KE has drying efficiency class A, which is better than that of 1.1% of dishwashers and equal to that of 98.9% of dishwashers.
Noise emission class
What it is: This attribute refers to Noise emission class.
When it matters: This matters if you have a preference for this specification.

Importance: MEDIUM

B
Siemens SN23HI2KE has noise emission class B, which is better than that of 44.6% of dishwashers and equal to that of 54.2% of dishwashers.
Energy consumption per cycle
What it is: This attribute refers to Energy consumption per cycle.
When it matters: This matters if you want to compare Energy consumption per cycle across dishwashers.

Importance: HIGH

0.84 kWh
Siemens SN23HI2KE uses 0.84 kWh per cycle, which is higher than that of 62.7% of dishwashers and equal to that of 5.8% of dishwashers.
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No. of wash programs
What it is: This attribute refers to No. of wash programs.
When it matters: This matters if you want to compare No. of wash programs across dishwashers.

Importance: MEDIUM

6
Siemens SN23HI2KE offers 6 wash programs, which is more than that of 22.1% of dishwashers and equal to that of 30.3% of dishwashers.
Quick wash program
What it is: This attribute shows whether the dishwasher has Quick wash program.
When it matters: This matters if you specifically want this feature.

Importance: MEDIUM

yes
Siemens SN23HI2KE has a quick wash program. This feature is present in 99.6% of dishwashers.
Quick wash time
What it is: This attribute refers to Quick wash time.
When it matters: This matters if you want to compare Quick wash time across dishwashers.

Importance: MEDIUM

29 min
Siemens SN23HI2KE completes its quick wash in 29 min, which is shorter than that of 77.6% of dishwashers and equal to that of 10% of dishwashers.
Eco wash time
What it is: This attribute refers to Eco wash time.
When it matters: This matters if you want to compare Eco wash time across dishwashers.

Importance: MEDIUM

270 min
Siemens SN23HI2KE completes its Eco wash in 270 min, which is longer than that of 77.6% of dishwashers and equal to that of 9.2% of dishwashers.
Delicate wash program
What it is: This attribute shows whether the dishwasher has Delicate wash program.
When it matters: This matters if you specifically want this feature.

Importance: LOW

no
Siemens SN23HI2KE does not have a delicate wash program. This feature is present in 60% of dishwashers.
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Automatic door opening
What it is: This attribute shows whether the dishwasher has Automatic door opening.
When it matters: This matters if you specifically want this feature.

Importance: HIGH

no
Siemens SN23HI2KE does not have an automatic door-opening feature. This feature is present in 65.8% of dishwashers.
Touch screen
What it is: This attribute shows whether the dishwasher has Touch screen.
When it matters: This matters if you specifically want this feature.

Importance: LOW

no
Siemens SN23HI2KE does not have a touch screen. This feature is present in 10.2% of dishwashers.
Load sensor
What it is: This attribute shows whether the dishwasher has Load sensor.
When it matters: This matters if you specifically want this feature.

Importance: MEDIUM

yes
Siemens SN23HI2KE has a load sensor. This feature is present in 69.6% of dishwashers.
Overflow protection
What it is: This attribute shows whether the dishwasher has Overflow protection.
When it matters: This matters if you specifically want this feature.

Importance: HIGH

yes
Siemens SN23HI2KE has overflow protection. This feature is present in 97.1% of dishwashers.
Adjustable water softener
What it is: This attribute shows whether the dishwasher has Adjustable water softener.
When it matters: This matters if you specifically want this feature.

Importance: MEDIUM

yes
Siemens SN23HI2KE has an adjustable water softener. This feature is present in 99% of dishwashers.
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Type of installation
What it is: This attribute refers to Type of installation.
When it matters: This matters if you have a preference for this specification.

Importance: LOW

freestanding
No. of place settings
What it is: This attribute refers to No. of place settings.
When it matters: This matters if you want to compare No. of place settings across dishwashers.

Importance: MEDIUM

13
Siemens SN23HI2KE holds 13 place settings, which is fewer than that of 55.2% of dishwashers and equal to that of 20.7% of dishwashers.
Cutlery basket
What it is: This attribute shows whether the dishwasher has Cutlery basket.
When it matters: This matters if you specifically want this feature.

Importance: LOW

yes
Siemens SN23HI2KE has a cutlery basket. This feature is present in 58.4% of dishwashers.
Height adjustable top basket
What it is: This attribute shows whether the dishwasher has Height adjustable top basket.
When it matters: This matters if you specifically want this feature.

Importance: LOW

yes
Siemens SN23HI2KE has a height-adjustable top basket. This feature is present in 93% of dishwashers.
Digital display
What it is: This attribute shows whether the dishwasher has Digital display.
When it matters: This matters if you specifically want this feature.

Importance: LOW

yes
Siemens SN23HI2KE has a digital display. This feature is present in 90.3% of dishwashers.
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Siemens SN23HI02KE vs the average dishwasher

  • Supports Wi-Fi
    Siemens SN23HI2KE supports Wi-Fi, while the average dishwasher does not support Wi-Fi. 44.1% of dishwashers support Wi-Fi.
    What it is: This attribute shows whether the dishwasher has Wi-Fi.
    When it matters: This matters if you specifically want this feature.

    Importance: MEDIUM

    Siemens SN23HI2KE supports Wi-Fi, while the average dishwasher does not support Wi-Fi. 44.1% of dishwashers support Wi-Fi.
  • 2 dB lower noise level
    Siemens SN23HI2KE has a lower noise level than the average dishwasher (42 dB vs 44 dB).
    What it is: This attribute refers to Noise level.
    When it matters: This matters if you want to compare Noise level across dishwashers.

    Importance: HIGH

    Siemens SN23HI2KE has a lower noise level than the average dishwasher (42 dB vs 44 dB).42 dB vs 44 dB
  • Supports voice control
    Siemens SN23HI2KE supports voice control, while the average dishwasher does not support voice control. 39.8% of dishwashers support voice control.
    What it is: This attribute shows whether the dishwasher has Voice control.
    When it matters: This matters if you specifically want this feature.

    Importance: LOW

    Siemens SN23HI2KE supports voice control, while the average dishwasher does not support voice control. 39.8% of dishwashers support voice control.
  • 0.5 L lower water usage per cycle
    Siemens SN23HI2KE uses less water per cycle than the average dishwasher (9 L vs 9.5 L).
    What it is: This attribute refers to Water usage per cycle.
    When it matters: This matters if you want to compare Water usage per cycle across dishwashers.

    Importance: HIGH

    Siemens SN23HI2KE uses less water per cycle than the average dishwasher (9 L vs 9.5 L).9 L vs 9.5 L
  • 1 min shorter quick wash time
    Siemens SN23HI2KE finishes the quick wash sooner than the average dishwasher (29 min vs 30 min).
    What it is: This attribute refers to Quick wash time.
    When it matters: This matters if you want to compare Quick wash time across dishwashers.

    Importance: MEDIUM

    Siemens SN23HI2KE finishes the quick wash sooner than the average dishwasher (29 min vs 30 min).29 min vs 30 min
  • 140 L/year lower annual water consumption
    Siemens SN23HI2KE uses less water annually than the average dishwasher (2520 L/year vs 2660 L/year).
    What it is: This attribute refers to Annual water consumption.
    When it matters: This matters if you want to compare Annual water consumption across dishwashers.

    Importance: MEDIUM

    Siemens SN23HI2KE uses less water annually than the average dishwasher (2520 L/year vs 2660 L/year).2520 L/year vs 2660 L/year
  • 0.1 m longer supply hose length
    Siemens SN23HI2KE has a longer supply hose than the average dishwasher (1.7 m vs 1.55 m).
    What it is: This attribute refers to Supply hose length.
    When it matters: This matters if you want to compare Supply hose length across dishwashers.

    Importance: LOW

    Siemens SN23HI2KE has a longer supply hose than the average dishwasher (1.7 m vs 1.55 m).1.65 m vs 1.55 m
  • 2 dB lower noise level
    Siemens SN23HI2KE has a lower noise level than the average dishwasher (42 dB vs 44 dB).
  • 0.5 L lower water usage per cycle
    Siemens SN23HI2KE uses less water per cycle than the average dishwasher (9 L vs 9.5 L).
  • 140 L/year lower annual water consumption
    Siemens SN23HI2KE uses less water annually than the average dishwasher (2520 L/year vs 2660 L/year).
  • 1 min shorter quick wash time
    Siemens SN23HI2KE finishes the quick wash sooner than the average dishwasher (29 min vs 30 min).
  • Supports Wi-Fi
    Siemens SN23HI2KE supports Wi-Fi, while the average dishwasher does not support Wi-Fi. 44.1% of dishwashers support Wi-Fi.
  • Supports voice control
    Siemens SN23HI2KE supports voice control, while the average dishwasher does not support voice control. 39.8% of dishwashers support voice control.
  • 0.1 m longer supply hose length
    Siemens SN23HI2KE has a longer supply hose than the average dishwasher (1.7 m vs 1.55 m).

Total
Performance
Programmes
Features
Design
  • Uses a different motor type
    Siemens SN23HI2KE uses brushless, while the average dishwasher uses inverter.
  • 0.09 kWh higher energy consumption per cycle
    Siemens SN23HI2KE uses more energy per cycle than the average dishwasher (0.8 kWh vs 0.75 kWh).
  • Does not have a delicate wash program
    Siemens SN23HI2KE does not have a delicate wash program, while the average dishwasher has a delicate wash program. 59.9% of dishwashers have a delicate wash program.
  • 35 min longer Eco wash time
    Siemens SN23HI2KE takes longer to finish the Eco wash than the average dishwasher (270 min vs 235 min).
  • Does not have an automatic door-opening feature
    Siemens SN23HI2KE does not have an automatic door-opening feature, while the average dishwasher has an automatic door-opening feature. 65.7% of dishwashers have an automatic door-opening feature.
  • 1 fewer place settings
    Siemens SN23HI2KE holds fewer place settings than the average dishwasher (13 vs 14).
  • 4 cm deeper depth
    Siemens SN23HI2KE is deeper than the average dishwasher (60 cm vs 56 cm).
  • 2.5 cm taller height
    Siemens SN23HI2KE is taller than the average dishwasher (84.5 cm vs 82 cm).
  • 8.3 kg heavier weight
    Siemens SN23HI2KE is heavier than the average dishwasher (47.4 kg vs 39.1 kg).
  • 0.2 cm wider width
    Siemens SN23HI2KE is wider than the average dishwasher (60 cm vs 59.8 cm).
  • Does not have an automatic door-opening feature
    Siemens SN23HI2KE does not have an automatic door-opening feature, while the average dishwasher has an automatic door-opening feature. 65.7% of dishwashers have an automatic door-opening feature.
    What it is: This attribute shows whether the dishwasher has Automatic door opening.
    When it matters: This matters if you specifically want this feature.

    Importance: HIGH

    Siemens SN23HI2KE does not have an automatic door-opening feature, while the average dishwasher has an automatic door-opening feature. 65.7% of dishwashers have an automatic door-opening feature.
  • Uses a different motor type
    Siemens SN23HI2KE uses brushless, while the average dishwasher uses inverter.
    What it is: This attribute refers to Motor type.
    When it matters: This matters if you have a preference for this specification.

    Importance: HIGH

    Siemens SN23HI2KE uses brushless, while the average dishwasher uses inverter.brushless vs inverter
  • Does not have a delicate wash program
    Siemens SN23HI2KE does not have a delicate wash program, while the average dishwasher has a delicate wash program. 59.9% of dishwashers have a delicate wash program.
    What it is: This attribute shows whether the dishwasher has Delicate wash program.
    When it matters: This matters if you specifically want this feature.

    Importance: LOW

    Siemens SN23HI2KE does not have a delicate wash program, while the average dishwasher has a delicate wash program. 59.9% of dishwashers have a delicate wash program.
  • 1 fewer place settings
    Siemens SN23HI2KE holds fewer place settings than the average dishwasher (13 vs 14).
    What it is: This attribute refers to No. of place settings.
    When it matters: This matters if you want to compare No. of place settings across dishwashers.

    Importance: MEDIUM

    Siemens SN23HI2KE holds fewer place settings than the average dishwasher (13 vs 14).13 vs 14
  • 35 min longer Eco wash time
    Siemens SN23HI2KE takes longer to finish the Eco wash than the average dishwasher (270 min vs 235 min).
    What it is: This attribute refers to Eco wash time.
    When it matters: This matters if you want to compare Eco wash time across dishwashers.

    Importance: MEDIUM

    Siemens SN23HI2KE takes longer to finish the Eco wash than the average dishwasher (270 min vs 235 min).270 min vs 235 min
  • 0.09 kWh higher energy consumption per cycle
    Siemens SN23HI2KE uses more energy per cycle than the average dishwasher (0.8 kWh vs 0.75 kWh).
    What it is: This attribute refers to Energy consumption per cycle.
    When it matters: This matters if you want to compare Energy consumption per cycle across dishwashers.

    Importance: HIGH

    Siemens SN23HI2KE uses more energy per cycle than the average dishwasher (0.8 kWh vs 0.75 kWh).0.84 kWh vs 0.75 kWh
  • 4 cm deeper depth
    Siemens SN23HI2KE is deeper than the average dishwasher (60 cm vs 56 cm).
    What it is: This attribute refers to Depth.
    When it matters: This matters if you want to compare Depth across dishwashers.

    Importance: LOW

    Siemens SN23HI2KE is deeper than the average dishwasher (60 cm vs 56 cm).60 cm vs 56 cm
  • 2.5 cm taller height
    Siemens SN23HI2KE is taller than the average dishwasher (84.5 cm vs 82 cm).
    What it is: This attribute refers to Height.
    When it matters: This matters if you want to compare Height across dishwashers.

    Importance: LOW

    Siemens SN23HI2KE is taller than the average dishwasher (84.5 cm vs 82 cm).84.5 cm vs 82 cm
Total
Overall
Performance
Programmes
Features
Design

Graphic comparison of Siemens SN23HI02KE and other products in the Dishwashers category

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Third-party reviews

United Kingdom
amazon
5.0
1 Reviews

(Reviews last updated: August 2026)

What customers like about Siemens SN23HI02KE?

  • Whisper-quiet operation at 42dB
  • Smart features and convenient remote control via the Home Connect app
  • Significantly faster washing cycles with the varioSpeed Plus option
  • Flexible loading and unloading with the varioFlex basket system
  • Generous 13 place settings capacity

What customers dislike about Siemens SN23HI02KE?

  • Dishes and plastics can occasionally come out damp, requiring manual towel drying
  • The standard Eco mode cycle takes a long time to complete (around 4.5 hours)
  • The primary wash program sometimes struggles to completely remove stubborn, baked-on food from pots and pans
  • Energy efficiency class is only rated D
  • Lacks a dedicated third cutlery drawer, relying instead on a traditional cutlery basket

Expert reviews

D
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Summary of the review
Siemens SN23HI02KE review and test
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SIEMENS SN23HI02KE: review and opinion - DECO Proteste
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