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Comparison

Ninja AF400UK vs Ninja SL400UK: specifications

Manufacturer-listed specifications for Ninja AF400UK, Ninja SL400UK, presented by product with source links.

By MainBuyer Editorial TeamPublished 7 October 2026Updated 7 October 2026Research-based assessment
Products referenced

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Specifications side by side

The approved specifications are grouped by topic below. Entries may describe different features or use different units. A missing entry means this article has no approved claim for that topic, not that the product lacks a feature.

Manufacturer-listed specifications by topic
TopicNinja AF400UKNinja SL400UK
Capacity
  • The total capacity is 9.5L across two drawers.
  • Each drawer fits up to 1.4 kg of fries or a 2 kg chicken.
  • The total capacity is 9.5L, made up of two 4.75L drawers.
  • Each 4.75L drawer can fit a 1.4kg roast chicken.
Dimensions
  • Product dimensions are 51.79 cm L x 42.19 cm W x 41.91 cm H.
  • Product dimensions are 46.99 cm L x 27.99 cm W x 38.51 cm H.
Weight
  • The Ninja Foodi MAX Dual Zone Air Fryer AF400UK weighs 11.5 kg.
Not covered in this article’s approved evidence.
PowerNot covered in this article’s approved evidence.
  • The unit is rated at 240 volts, 2,470 watts and 11 amps.
Documented modes
  • The air fryer offers 6 cooking functions: Air Fry, Max Crisp, Roast, Bake, Reheat and Dehydrate.
  • The air fryer offers 6 cooking functions: Air Fry, Max Crisp, Roast, Bake, Dehydrate and Reheat.
  • The SYNC function makes both drawers finish cooking at the same time.
  • The MATCH function applies the same settings to both drawers to cook larger quantities of one food.
Documented controls
  • It has 2 separate cooking drawers, and cooking programs and times can be set to SYNC or MATCH between them.
  • The air fryer has variable temperature controls.
  • The two drawers are individually controlled, allowing different cooking functions, times and temperatures in each drawer.
Documented components
  • The box contains the main unit, 2 non-stick drawers, 2 non-stick crisper plates, an instruction booklet and an inspiration guide.
  • The box contains the main unit, 2 x 4.75L non-stick drawers, 2 x non-stick crisper plates, 2 x multi-layer racks and an instruction booklet.
Documented design detailsNot covered in this article’s approved evidence.
  • The air fryer has 2 drawers stacked vertically rather than side by side.
  • Food can be cooked on 4 levels at the same time by layering it using the 2 included racks.
SourceNinja AF400UK manufacturer sourceNinja SL400UK manufacturer source

Ninja AF400UK

  • The Ninja Foodi MAX Dual Zone Air Fryer AF400UK weighs 11.5 kg.
  • Product dimensions are 51.79 cm L x 42.19 cm W x 41.91 cm H.
  • The box contains the main unit, 2 non-stick drawers, 2 non-stick crisper plates, an instruction booklet and an inspiration guide.
  • The air fryer offers 6 cooking functions: Air Fry, Max Crisp, Roast, Bake, Reheat and Dehydrate.
  • The total capacity is 9.5L across two drawers.
  • Each drawer fits up to 1.4 kg of fries or a 2 kg chicken.
  • It has 2 separate cooking drawers, and cooking programs and times can be set to SYNC or MATCH between them.
  • The air fryer has variable temperature controls.

Ninja SL400UK

  • The air fryer offers 6 cooking functions: Air Fry, Max Crisp, Roast, Bake, Dehydrate and Reheat.
  • The total capacity is 9.5L, made up of two 4.75L drawers.
  • Each 4.75L drawer can fit a 1.4kg roast chicken.
  • Product dimensions are 46.99 cm L x 27.99 cm W x 38.51 cm H.
  • The unit is rated at 240 volts, 2,470 watts and 11 amps.
  • The box contains the main unit, 2 x 4.75L non-stick drawers, 2 x non-stick crisper plates, 2 x multi-layer racks and an instruction booklet.
  • The air fryer has 2 drawers stacked vertically rather than side by side.
  • The two drawers are individually controlled, allowing different cooking functions, times and temperatures in each drawer.
  • The SYNC function makes both drawers finish cooking at the same time.
  • The MATCH function applies the same settings to both drawers to cook larger quantities of one food.
  • Food can be cooked on 4 levels at the same time by layering it using the 2 included racks.

Manufacturer sources

Bottom line

These are manufacturer-listed specifications. This overview does not report hands-on testing or make a recommendation.

Methodology

How this article was prepared

This is a research-based MainBuyer article using current web evidence, official product information and verified MainBuyer product records. It does not claim hands-on laboratory testing.

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