Ninja sl400uk
Air Fryers

sl400uk

Ninja

Released May 1, 2024 · Analysis updated Mar 3, 2026

Air fryer with intuitive controls, double stack racks for larger batches, and a compact stacked design with dishwasher-safe parts. The Ninja sl400uk scores 80/100 based on 4 expert reviews in the air fryers category. Coverage includes reviews from Techradar, T3, Housebeautiful, and Idealhome.

Critic Score

What's this?
80

based on 4 expert reviews

TechradarT3HousebeautifulIdealhome

Low confidence · only 4 reviews

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Pros

No pros extracted yet

Cons

  • High price(3)
  • Uneven cooking(3)
  • Long cook times(2)

4 Publication Reviews

95
Major publication05/2024

AI summary of this review

The Ninja Double Stack air fryer has its drawers stacked on top of each other, to maximize counter space without losing cooking capacity, and it's easily my favorite air fryer.

Score estimated from the review text

78
Established publication06/2024

AI summary of this review

The Ninja Double Stack XL is a two-drawer air fryer that takes up less worktop space than its rivals.

Score estimated from the review text

78
Independent publication08/2024

AI summary of this review

The Ninja Double Stack offers a space-saving design with four cooking racks but cooks slightly slower and less evenly than the Dual Zone.

Score estimated from the review text

68
Independent publication07/2024

AI summary of this review

The Ninja Double Stack Air Fryer is an innovative space-saving design, but its performance doesn't quite match Ninja's usual high standards.

Score estimated from the review text