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NEFF S257ECX21E N70 Review | 59 Data compared

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  • Avg. price in UK: ~£710
  • Avg. price in US: ~$800
  • No. of place settings: 14
  • Energy efficiency class: D
  • Noise level: 42 dB
  • Overflow protection: yes
  • Height adjustable top basket: yes

NEFF S257ECX21E N70 review. Compare 59 technical specifications and user reviews to see how this product ranks in the Dishwashers category and whether it is worth buying.

7.8

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%

?

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%

8.0

Performance

30.0%

8.4

Features

25.0%

6.8

Programmes

10.0%

7.1

Design

Very good
?

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%

?

User reviews

30.0%

?

Popularity

  • 6.7
    Efficient operation

    Score components:

    35.0%

    3.5

    Energy consumption per cycle

    25.0%

    8.3

    Water usage per cycle

    20.0%

    7.0

    Energy efficiency class

    10.0%

    10

    Noise level

    10.0%

    10

    No. of place settings

  • 8.5
    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%

    3.5

    Energy consumption per cycle

    10.0%

    10

    No. of place settings

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Best prices in UK

Best rankings

?

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

Verdict

The NEFF S257ECX21E N70 is a fully integrated, 60 cm XXL built-in dishwasher offering a spacious 14 place setting capacity and an operating volume of 42 dB. Key characteristics include 8 wash programs—highlighted by the high-temperature Chef 70°C cycle for stubborn stains—and 4 special functions like VarioSpeed Plus and IntensiveZone. Notable pros feature the Open Dry automatic door-opening system for enhanced drying efficiency, TimeLight floor projection for program status, a highly adjustable Flex 1 basket system with an extra drawer, and smart operation through Home Connect Wi-Fi integration. On the downside, the appliance carries a relatively modest D energy efficiency rating on the modern A-G scale, and its standard Eco wash cycle requires a lengthy 4 hours and 35 minutes to complete.

Technical Specifications of dishwasher NEFF S257ECX21E N70

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%

?

Performance

30.0%

?

Features

25.0%

?

Programmes

10.0%

?

Design

7.8
NEFF S257ECX21E N70 has a technical score of 7.77 points, which is higher than 50.2% 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%

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 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
NEFF S257ECX21E N70 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%

7.8

Overall score

40.0%

6.8

Price

7.5
NEFF S257ECX21E N70 has a quality-to-price ratio of 7.5 points, which is lower than 74.1% 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
NEFF S257ECX21E N70 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
NEFF S257ECX21E N70 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
NEFF S257ECX21E N70 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
NEFF S257ECX21E N70 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

0.85 kWh
NEFF S257ECX21E N70 uses 0.85 kWh per cycle, which is higher than that of 68.6% of dishwashers and equal to that of 8.1% 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

7
NEFF S257ECX21E N70 offers 7 wash programs, which is more than that of 52.4% of dishwashers and equal to that of 11.6% 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
NEFF S257ECX21E N70 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
NEFF S257ECX21E N70 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

275 min
NEFF S257ECX21E N70 completes its Eco wash in 275 min, which is longer than that of 86.8% of dishwashers and equal to that of 2.8% 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

yes
NEFF S257ECX21E N70 has a delicate wash program. This feature is present in 59.9% 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
NEFF S257ECX21E N70 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

yes
NEFF S257ECX21E N70 has a touch screen. This feature is present in 10.1% 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
NEFF S257ECX21E N70 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
NEFF S257ECX21E N70 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
NEFF S257ECX21E N70 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

built-in
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

14
NEFF S257ECX21E N70 holds 14 place settings, which is more than that of 44.9% of dishwashers and equal to that of 43.7% 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

no
NEFF S257ECX21E N70 does not have a cutlery basket. This feature is present in 58.5% 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
NEFF S257ECX21E N70 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
NEFF S257ECX21E N70 has a digital display. This feature is present in 90.3% of dishwashers.
Show more

NEFF S257ECX21E N70 vs the average dishwasher

  • Has a self-cleaning filter system
    NEFF S257ECX21E N70 has a self-cleaning filter system, while the average dishwasher does not have a self-cleaning filter system. 33.8% of dishwashers have a self-cleaning filter system.
    What it is: This attribute shows whether the dishwasher has Self-cleaning filter system.
    When it matters: This matters if you specifically want this feature.

    Importance: HIGH

    NEFF S257ECX21E N70 has a self-cleaning filter system, while the average dishwasher does not have a self-cleaning filter system. 33.8% of dishwashers have a self-cleaning filter system.
  • 2 more wash temperatures
    NEFF S257ECX21E N70 offers more wash temperatures than the average dishwasher (6 vs 4).
    What it is: This attribute refers to No. of wash temperatures.
    When it matters: This matters if you want to compare No. of wash temperatures across dishwashers.

    Importance: MEDIUM

    NEFF S257ECX21E N70 offers more wash temperatures than the average dishwasher (6 vs 4).6 vs 4
  • Supports Wi-Fi
    NEFF S257ECX21E N70 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

    NEFF S257ECX21E N70 supports Wi-Fi, while the average dishwasher does not support Wi-Fi. 44.1% of dishwashers support Wi-Fi.
  • Has a touch screen
    NEFF S257ECX21E N70 has a touch screen, while the average dishwasher does not have a touch screen. 10.2% of dishwashers have a 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

    NEFF S257ECX21E N70 has a touch screen, while the average dishwasher does not have a touch screen. 10.2% of dishwashers have a touch screen.
  • 2 dB lower noise level
    NEFF S257ECX21E N70 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

    NEFF S257ECX21E N70 has a lower noise level than the average dishwasher (42 dB vs 44 dB).42 dB vs 44 dB
  • Supports voice control
    NEFF S257ECX21E N70 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

    NEFF S257ECX21E N70 supports voice control, while the average dishwasher does not support voice control. 39.8% of dishwashers support voice control.
  • 1 min shorter quick wash time
    NEFF S257ECX21E N70 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

    NEFF S257ECX21E N70 finishes the quick wash sooner than the average dishwasher (29 min vs 30 min).29 min vs 30 min
  • 0.25 m longer cable length
    NEFF S257ECX21E N70 has a longer cable than the average dishwasher (1.8 m vs 1.5 m).
    What it is: This attribute refers to Cable length.
    When it matters: This matters if you want to compare Cable length across dishwashers.

    Importance: LOW

    NEFF S257ECX21E N70 has a longer cable than the average dishwasher (1.8 m vs 1.5 m).1.75 m vs 1.5 m
  • 2 more wash temperatures
    NEFF S257ECX21E N70 offers more wash temperatures than the average dishwasher (6 vs 4).
  • 2 dB lower noise level
    NEFF S257ECX21E N70 has a lower noise level than the average dishwasher (42 dB vs 44 dB).
  • 1 min shorter quick wash time
    NEFF S257ECX21E N70 finishes the quick wash sooner than the average dishwasher (29 min vs 30 min).
  • 1 more wash programs
    NEFF S257ECX21E N70 offers more wash programs than the average dishwasher (7 vs 6).
  • Has a self-cleaning filter system
    NEFF S257ECX21E N70 has a self-cleaning filter system, while the average dishwasher does not have a self-cleaning filter system. 33.8% of dishwashers have a self-cleaning filter system.
  • Supports Wi-Fi
    NEFF S257ECX21E N70 supports Wi-Fi, while the average dishwasher does not support Wi-Fi. 44.1% of dishwashers support Wi-Fi.
  • Has a touch screen
    NEFF S257ECX21E N70 has a touch screen, while the average dishwasher does not have a touch screen. 10.2% of dishwashers have a touch screen.
  • Supports voice control
    NEFF S257ECX21E N70 supports voice control, while the average dishwasher does not support voice control. 39.8% of dishwashers support voice control.
  • 0.25 m longer cable length
    NEFF S257ECX21E N70 has a longer cable than the average dishwasher (1.8 m vs 1.5 m).
  • 0.1 m longer supply hose length
    NEFF S257ECX21E N70 has a longer supply hose than the average dishwasher (1.7 m vs 1.55 m).
  • 1 cm shallower depth
    NEFF S257ECX21E N70 is shallower than the average dishwasher (55 cm vs 56 cm).

Total
Performance
Programmes
Features
Design
  • Uses a different motor type
    NEFF S257ECX21E N70 uses standard, while the average dishwasher uses inverter.
  • 0.1 kWh higher energy consumption per cycle
    NEFF S257ECX21E N70 uses more energy per cycle than the average dishwasher (0.9 kWh vs 0.75 kWh).
  • Does not have a half-load option
    NEFF S257ECX21E N70 does not have a half-load option, while the average dishwasher has a half-load option. 72.7% of dishwashers have a half-load option.
  • Does not have a quiet wash program
    NEFF S257ECX21E N70 does not have a quiet wash program, while the average dishwasher has a quiet wash program. 59.9% of dishwashers have a quiet wash program.
  • Does not have an intensive wash program
    NEFF S257ECX21E N70 does not have an intensive wash program, while the average dishwasher has an intensive wash program. 89.5% of dishwashers have an intensive wash program.
  • 40 min longer Eco wash time
    NEFF S257ECX21E N70 takes longer to finish the Eco wash than the average dishwasher (275 min vs 235 min).
  • Does not have an automatic door-opening feature
    NEFF S257ECX21E N70 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.
  • Does not have a detergent tablet counter in the app
    NEFF S257ECX21E N70 does not have a detergent tablet counter in the app, while the average dishwasher has a detergent tablet counter in the app. 67.1% of dishwashers have a detergent tablet counter in the app.
  • Does not have a cutlery basket
    NEFF S257ECX21E N70 does not have a cutlery basket, while the average dishwasher has a cutlery basket. 58.4% of dishwashers have a cutlery basket.
  • Does not have a child lock
    NEFF S257ECX21E N70 does not have a child lock, while the average dishwasher has a child lock. 52.4% of dishwashers have a child lock.
  • 4.5 cm taller height
    NEFF S257ECX21E N70 is taller than the average dishwasher (86.5 cm vs 82 cm).
  • 5 kg heavier weight
    NEFF S257ECX21E N70 is heavier than the average dishwasher (44.1 kg vs 39.1 kg).
  • Uses a different motor type
    NEFF S257ECX21E N70 uses standard, 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

    NEFF S257ECX21E N70 uses standard, while the average dishwasher uses inverter.standard vs inverter
  • Does not have an automatic door-opening feature
    NEFF S257ECX21E N70 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

    NEFF S257ECX21E N70 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.
  • Does not have a half-load option
    NEFF S257ECX21E N70 does not have a half-load option, while the average dishwasher has a half-load option. 72.7% of dishwashers have a half-load option.
    What it is: This attribute shows whether the dishwasher has Half load option.
    When it matters: This matters if you specifically want this feature.

    Importance: MEDIUM

    NEFF S257ECX21E N70 does not have a half-load option, while the average dishwasher has a half-load option. 72.7% of dishwashers have a half-load option.
  • Does not have a quiet wash program
    NEFF S257ECX21E N70 does not have a quiet wash program, while the average dishwasher has a quiet wash program. 59.9% of dishwashers have a quiet wash program.
    What it is: This attribute shows whether the dishwasher has Quiet wash program.
    When it matters: This matters if you specifically want this feature.

    Importance: LOW

    NEFF S257ECX21E N70 does not have a quiet wash program, while the average dishwasher has a quiet wash program. 59.9% of dishwashers have a quiet wash program.
  • 0.1 kWh higher energy consumption per cycle
    NEFF S257ECX21E N70 uses more energy per cycle than the average dishwasher (0.9 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

    NEFF S257ECX21E N70 uses more energy per cycle than the average dishwasher (0.9 kWh vs 0.75 kWh).0.85 kWh vs 0.75 kWh
  • Does not have an intensive wash program
    NEFF S257ECX21E N70 does not have an intensive wash program, while the average dishwasher has an intensive wash program. 89.5% of dishwashers have an intensive wash program.
    What it is: This attribute shows whether the dishwasher has Intensive wash program.
    When it matters: This matters if you specifically want this feature.

    Importance: MEDIUM

    NEFF S257ECX21E N70 does not have an intensive wash program, while the average dishwasher has an intensive wash program. 89.5% of dishwashers have an intensive wash program.
  • Does not have a detergent tablet counter in the app
    NEFF S257ECX21E N70 does not have a detergent tablet counter in the app, while the average dishwasher has a detergent tablet counter in the app. 67.1% of dishwashers have a detergent tablet counter in the app.
    What it is: This attribute shows whether the dishwasher has Tab counter.
    When it matters: This matters if you specifically want this feature.

    Importance: LOW

    NEFF S257ECX21E N70 does not have a detergent tablet counter in the app, while the average dishwasher has a detergent tablet counter in the app. 67.1% of dishwashers have a detergent tablet counter in the app.
  • 40 min longer Eco wash time
    NEFF S257ECX21E N70 takes longer to finish the Eco wash than the average dishwasher (275 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

    NEFF S257ECX21E N70 takes longer to finish the Eco wash than the average dishwasher (275 min vs 235 min).275 min vs 235 min
Total
Overall
Performance
Programmes
Features
Design

Graphic comparison of NEFF S257ECX21E N70 and other products in the Dishwashers category

Attribute category
Attribute
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Third-party reviews

What customers like about NEFF S257ECX21E N70?

  • Excellent cleaning results, especially with the intensive Chef 70°C program for stubborn stains
  • Extremely quiet operation at a low 42 dB noise level
  • Useful TimeLight feature that projects the remaining cycle time onto the kitchen floor
  • Open Dry automatic door opening system that improves air drying efficiency
  • Flexible Flex 2 basket layout with an adjustable RackMatic upper basket and a dedicated cutlery drawer
  • Convenient Home Connect smart app integration for remote monitoring and control

What customers dislike about NEFF S257ECX21E N70?

  • Long cycle duration when running the energy-saving Eco program
  • A cutlery drawer layout that some users find fiddly or tedious to pack compared to an upright basket
  • Lower energy efficiency grade (Class D under newer EU rating standards)

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