Ninja Foodi DZ401 vs Breville the Joule Oven Air Fryer Pro

Which Air Fryer Is Better?

Products

Ninja Foodi DZ401
Breville the Joule Oven Air Fryer Pro

Tested using Methodology v1.0.1

Updated Aug 18, 2025 04:00 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.0.1

Updated Dec 15, 2025 04:55 PM

SEE PRICE
Amazon.com

Our Verdict

Ninja Foodi DZ401

Breville the Joule Oven Air Fryer Pro

The Ninja Foodi DZ401 is a better air fryer for most people than the Breville the Joule Oven Air Fryer Pro. Both appliances make decent-quality fried food and offer excellent versatility, but the Ninja preheats faster, cooks faster, and maintains a more stable temperature throughout the process. It also takes up less counter space. On the other hand, the Breville offers more capacity and more cooking surface area, so if you're making food for a crowd, you may prefer it. The Breville has some additional settings that are only available through their companion app, like 'Autopilot,' which automatically switches between cooking modes based on your recipe selection. You may find these features to be a benefit or drawback depending on whether you prefer to have assistance through guided recipes or full control over the cooking process.

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Variants

  • AF400EUCP (Copper/Black)
  • DZ401 (Gray)
  • AF400EU (Gray)
  • BOV950BST (Black Stainless Steel)
  • BOV950BSS (Brushed Stainless Steel)

Check Price

Copper/Black
AF400EUCP
Amazon.com
Black Stainless Steel
BOV950BST
SEE PRICE
Amazon.com
Brushed Stainless Steel
BOV950BSS
SEE PRICE
Amazon.com
Gray
AF400EU
Amazon.com
 

Main Differences for
Air Frying

Threshold 

0.10

Air Frying 
 

7.9
6.9

Cooking Speed 
 

8.6
5.1

Single Basket Surface Area 
 

50.0 in² (322.8 cm²)
178.7 in² (1,152.8 cm²)

Preheat Speed 
 

8.7
0.8

Full Comparison

Design

Size 
 

6.3
2.2

Device Dimensions 
 

Compare High-Res
Ninja Foodi DZ401 Device Dimensions
Compare High-Res
Breville the Joule Oven Air Fryer Pro Device Dimensions

Height 
 

12.8" (32.5 cm)
12.6" (32.0 cm)

Width 
 

16.4" (41.7 cm)
21.5" (54.6 cm)

Depth 
 

14.4" (36.6 cm)
17.3" (44.0 cm)

Overall Volume 
 

3,026.9 in³ (49,602 cm³)
4,691.3 in³ (76,877 cm³)

Cooking Chamber 
 

8.5
9.9

Isometric Basket View 
 

Compare High-Res
Ninja Foodi DZ401 Isometric Basket View
Compare High-Res
Breville the Joule Oven Air Fryer Pro Isometric Basket View

Surface Area Picture 
 

Compare High-Res
Ninja Foodi DZ401 Surface Area Picture
Compare High-Res
Breville the Joule Oven Air Fryer Pro Surface Area Picture

Single Basket Surface Area 
 

50.0 in² (322.8 cm²)
178.7 in² (1,152.8 cm²)

Total Basket Surface Area  

100.1 in² (645.6 cm²)
178.7 in² (1,152.8 cm²)

Advertised Capacity  

10.0 qt (9.5 L)
24.7 qt (23.4 L)

Measured Capacity  

10.1 qt (9.6 L)
23.2 qt (21.9 L)

Chamber Height 
 

4.3" (11.0 cm)
6.8" (17.2 cm)

Nonstick Coating Type 
 

Ceramic
No Coating
Show Text 

Cooking Versatility 
 

8.7
8.9

Control Panel Photo 
 

Compare High-Res
Ninja Foodi DZ401 Control Panel Photo
Compare High-Res
Breville the Joule Oven Air Fryer Pro Control Panel Photo

Dual Cooking Chambers  

Yes
No

Cooking Method Presets 
 

6
10

Minimum Temperature 
 

105 °F (41 °C)
85 °F (29 °C)

Maximum Temperature 
 

450 °F (232 °C)
480 °F (249 °C)

Minimum Fan Speed 
 

1,315 RPM
1,200 RPM

Maximum Fan Speed 
 

3,100 RPM
3,100 RPM

Maximum Power Draw 
 

1,545 W
1,615 W

Temperature Probe 
 

No
No
Show Text 
Performance

Frying Quality 
 

7.3
7.3

Sorted Fries 
 

Compare High-Res
Ninja Foodi DZ401 Sorted Fries
Compare High-Res
Breville the Joule Oven Air Fryer Pro Sorted Fries

Fry Sorting Video  

Crispy Fries 
 

62.9%
63.0%

Overcooked Fries 
 

20.0%
6.0%

Undercooked Fries 
 

17.1%
31.0%
Show Text 

Cooking Speed 
 

8.6
5.1

Moisture Loss Over Time  

See details
See details

Time To Reach 45% Moisture Loss  

16:26
27:42
Show Text 

Preheat Speed 
 

8.7
0.8

Preheat Speed  

See details
See details

Preheat Reminder 
 

No
Yes

Time to Reach 400°F 
 

02:19
07:21
Show Text 

Temperature Stability 
 

8.2
7.8

Temperature Stability  

See details
See details

Recovery Time Once Food Added 
 

02:38
02:01

Temperature Variation at 400°F 
 

16 °F
38 °F
Show Text 

Check Price

Copper/Black
AF400EUCP
Amazon.com
Black Stainless Steel
BOV950BST
SEE PRICE
Amazon.com
Brushed Stainless Steel
BOV950BSS
SEE PRICE
Amazon.com
Gray
AF400EU
Amazon.com
 

Ninja Foodi DZ401

Breville the Joule Oven Air Fryer Pro

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