# Ninja DoubleStack XL 2-Basket Air Fryer (SL400): specs and price

**Price (US):** Not published (No US price sourced for the exact SL400 (4-in-1) model. The fetched Amazon listing for this exact model (ASIN B0DQYQCGGJ, Model Number SL400-cr) showed "No featured offers available" (no price). The SharkNinja.com product page lists $249.99 MSRP (reduced to $209.99) but that is the SL401 6-in-1 sibling trim, not the SL400, so it was not used.), as of 2026-07-07.
**Brand:** Ninja
**Released:** 2024
**Deskmark:** Gold Deskmark — pay-blind category standing 68/100, #3 of 23 in class (independent, computed from sourced data, never for sale).

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | Not published |
| Brand | Ninja |
| Released | 2024 |
| Capacity qt | 10 |
| Type | dual-basket |
| Max temp f | — |
| Presets | 4 |
| Dishwasher safe | — |
| Wattage | 1690 |
| Drawers | 2 |

## Where it stands

On the spec sheet, its presets of 4 is the lowest of the 23, its drawers of 2 is the highest of the 21, and its capacity qt of 10 is above the median of the 20. By release date, it is among the newer of the 15 we date.

## What reviewers say

Two whitelisted hands-on reviewers (TechRadar, Reviewed/USA Today) both praise the DoubleStack XL as a strong counter-space saver that cooks up to four foods at once and cleans up easily. TechRadar rates cooking top-tier with no compromise from the stacked drawers and flags only the high price. Reviewed is more mixed: it likes the convenience but flags near-double cook times when running both baskets, a tall/heavy/loud build, and inconsistent results. Neither published lab measurements. (Based on 2 reviews, 2024-05-08–2024-07-23.)

Praised: Compact vertical footprint saves counter space versus side-by-side dual fryers; Cooks up to four foods at once via two baskets plus extra racks; Dishwasher-safe baskets make cleanup easy; Top-tier crisping performance with no compromise from the stacked drawers (per TechRadar).
Flagged: Running both baskets at once nearly doubles cook times; Tall, heavy and surprisingly loud in use; Expensive for a dual-basket air fryer (per TechRadar); Can't fit large foods (whole chicken, pizza); '8-person' capacity feels ambitious.
Disagreement: The two testers split on cooking consistency and price. TechRadar found near-even, top-tier results with no compromise from the vertical stacking and called price the only real downside; Reviewed did not flag price but hit uneven results (undercooked Brussels sprouts alongside perfectly cooked potatoes) and additionally flagged the unit as tall, heavy, and surprisingly loud.
Sources: TechRadar (2024-05-08, techradar.com), Reviewed (USA Today) (2024-07-23, reviewed.com)

## Frequently asked questions

**What do reviewers say about the Ninja DoubleStack XL 2-Basket Air Fryer (SL400)?**

Two whitelisted hands-on reviewers (TechRadar, Reviewed/USA Today) both praise the DoubleStack XL as a strong counter-space saver that cooks up to four foods at once and cleans up easily. TechRadar rates cooking top-tier with no compromise from the stacked drawers and flags only the high price. Reviewed is more mixed: it likes the convenience but flags near-double cook times when running both baskets, a tall/heavy/loud build, and inconsistent results. Neither published lab measurements. Praised: Compact vertical footprint saves counter space versus side-by-side dual fryers; Cooks up to four foods at once via two baskets plus extra racks; Dishwasher-safe baskets make cleanup easy; Top-tier crisping performance with no compromise from the stacked drawers (per TechRadar). Flagged: Running both baskets at once nearly doubles cook times; Tall, heavy and surprisingly loud in use; Expensive for a dual-basket air fryer (per TechRadar); Can't fit large foods (whole chicken, pizza); '8-person' capacity feels ambitious. (From 2 tester reviews.)

**How much does the Ninja DoubleStack XL 2-Basket Air Fryer (SL400) cost?**

The Ninja DoubleStack XL 2-Basket Air Fryer (SL400) has no published US price as of 2026-07-07.

**When was the Ninja DoubleStack XL 2-Basket Air Fryer (SL400) released?**

The Ninja DoubleStack XL 2-Basket Air Fryer (SL400) was released 2024.

**What are the Ninja DoubleStack XL 2-Basket Air Fryer (SL400)'s key specs?**

Ninja DoubleStack XL 2-Basket Air Fryer (SL400) (Ninja): capacity qt 10, type dual-basket, presets 4, wattage 1690, drawers 2. Full sourced spec sheet verified 2026-07-07.

Source: https://www.amazon.com/Ninja-DoubleStack-2-Basket-Compact-Renewed/dp/B0DQYQCGGJ (amazon.com, accessed 2026-07-07)
Corroboration: https://www.sharkninja.com/ninja-doublestack-xl-2-basket-10-qt-air-fryer/SL401.html (accessed 2026-07-07)
Canonical: https://frontdeskreview.com/product/air-fryers/ninja-doublestack-xl-sl400/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl