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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Size
    2. Cooking Chamber
    3. Cooking Versatility
  5. Performance
    1. Frying Quality
    2. Cooking Speed
    3. Preheat Speed
    4. Temperature Stability
  6. Comments

Ninja DoubleStack SL201 vs Gotham Steel Air Fryer

Side-by-Side Comparison

Products

Ninja DoubleStack SL201
Gotham Steel Air Fryer

Tested using Methodology v1.0

Updated Oct 23, 2024 12:52 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.0

Updated Apr 24, 2025 07:07 PM

SEE PRICE
Amazon.com
Ninja DoubleStack SL201 Picture
Gotham Steel Air Fryer Picture

Variants

  • SL201 (Black)
  • Air Fryer (Black)

Our Verdict

Ninja DoubleStack SL201

Gotham Steel Air Fryer

The Gotham Steel Air Fryer and the Ninja DoubleStack SL201 have different strengths; the Gotham Steel produces better-quality fried food, but the Ninja is much more versatile. When air frying with the Gotham Steel, nearly two-thirds of each batch turns out crispy and golden brown, while the Ninja leaves over half either burnt or undercooked. The Ninja, on the other hand, comes with two baskets, so you can cook different foods at the same time. It also includes six different cooking presets, so you can opt for settings like 'Roast' and 'Reheat,' and it has a larger range of temperatures and fan speeds. These setting options make it a great choice for tackling a variety of recipes, while the Gotham Steel is best suited for classic air fryer options like onion rings, wings, and French fries.

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Check Price

Black
Air Fryer
B&H
Black
SL201
B&H
Black
Air Fryer
BestBuy.com

Main Differences for
Air Frying

Threshold 

0.10

Air Frying 

6.6
6.9

Frying Quality 
 

5.5
7.3

Cooking Versatility 
 

9.2
6.1

Temperature Stability 
 

7.8
6.6

Full Comparison

Design

Size 
 

6.3
7.9

Device Dimensions  

Ninja DoubleStack SL201 Device Dimensions
Gotham Steel Air Fryer Device Dimensions

Height 
 

15.0" (38.0 cm)
11.5" (29.3 cm)

Width 
 

11.4" (28.9 cm)
10.6" (27.0 cm)

Depth 
 

17.9" (45.5 cm)
12.8" (32.5 cm)

Overall Volume 
 

3,049.3 in³ (49,968 cm³)
1,569.0 in³ (25,711 cm³)

Cooking Chamber 
 

7.9
6.8

Isometric Basket View  

Ninja DoubleStack SL201 Isometric Basket View
Gotham Steel Air Fryer Isometric Basket View

Surface Area Picture  

Ninja DoubleStack SL201 Surface Area Picture
Gotham Steel Air Fryer Surface Area Picture

Single Basket Surface Area 
 

41.4 in² (267.1 cm²)
52.7 in² (339.9 cm²)

Total Basket Surface Area  

82.8 in² (534.1 cm²)
52.7 in² (339.9 cm²)

Advertised Capacity  

8.0 qt (7.6 L)
4.0 qt (3.8 L)

Measured Capacity  

8.0 qt (7.6 L)
2.7 qt (2.6 L)

Chamber Height 
 

4.0" (10.2 cm)
3.5" (8.9 cm)

Nonstick Coating Type 
 

Ceramic
PTFE
Show Text 

Cooking Versatility 
 

9.2
6.1

Control Panel Photo  

Ninja DoubleStack SL201 Control Panel Photo
Gotham Steel Air Fryer Control Panel Photo

Dual Cooking Chambers  

Yes
No

Cooking Method Presets 
 

6
1

Minimum Temperature 
 

80 °F (27 °C)
175 °F (79 °C)

Maximum Temperature 
 

450 °F (232 °C)
400 °F (204 °C)

Minimum Fan Speed 
 

1,170 RPM
2,300 RPM

Maximum Fan Speed 
 

3,050 RPM
2,300 RPM

Temperature Probe 
 

No
No
Show Text 
Performance

Frying Quality 
 

5.5
7.3

Sorted Fries  

Ninja DoubleStack SL201 Sorted Fries
Gotham Steel Air Fryer Sorted Fries

Fry Sorting Video  

Crispy Fries 
 

45.2%
63.3%

Overcooked Fries 
 

29.0%
3.3%

Undercooked Fries 
 

25.8%
33.3%
Show Text 

Cooking Speed 
 

7.0
6.7

Moisture Loss Over Time  

See details on graph tool
See details on graph tool

Time To Reach 45% Moisture Loss  

19:56
20:57

Preheat Speed 
 

5.4
8.8

Preheat Speed  

See details on graph tool
See details on graph tool

Preheat Reminder 
 

No
No

Time to Reach 400°F 
 

03:47
02:12

Temperature Stability 
 

7.8
6.6

Temperature Stability  

See details on graph tool
See details on graph tool

Recovery Time Once Food Added 
 

03:21
03:19

Temperature Variation at 400°F 
 

16 °F
82 °F
Show Text 

Check Price

Black
Air Fryer
B&H
Black
SL201
B&H
Black
Air Fryer
BestBuy.com

Ninja DoubleStack SL201

Gotham Steel Air Fryer

Comments

  1. Comparison

Ninja DoubleStack SL201 vs Gotham Steel Air Fryer: Main Discussion

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