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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Dimensions
    2. Build Quality
    3. Jar Capacity
    4. Jar/Beaker Materials
    5. Blades
    6. Lid
    7. Power Cord
    8. In The Box
  5. Performance
    1. Fibrous Ingredients (Small Batches)
    2. Fibrous Ingredients (Full Capacity)
    3. Crushed Ice
    4. Nut Butter
    5. Noise
    6. Blade Speed
  6. Ease Of Use
    1. Controls And Programs
    2. Cleaning
  7. Comments

KitchenAid K400 vs Ninja Foodi Power Blender Ultimate System

Side-by-Side Comparison

Products

KitchenAid K400
Ninja Foodi Power Blender Ultimate System

Tested using Methodology v1.0

Updated Apr 23, 2025 05:44 PM

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Amazon.com

Tested using Methodology v1.0

Updated Apr 23, 2025 08:55 PM

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KitchenAid K400 Picture
Ninja Foodi Power Blender Ultimate System Picture

Variants

  • K400 (Almond Cream)
  • K400 (Beetroot)
  • K400 (Blue Velvet)
  • K400 (Blue Velvet W/ Tamper)
  • K400 (Candy Apple)
  • K400 (Contour Silver)
  • K400 (Contour Silver W/ Tamper)
  • K400 (Contour Silver W/ Tamper & Personal Jar)
  • K400 (Dried Rose W/ Tamper)
  • K400 (Matte Black)
  • K400 (Matte Black W/ Tamper)
  • K400 (Matte Black W/ Tamper & Personal Jar)
  • K400 (Milkshake W/ Tamper)
  • K400 (Passion Red)
  • K400 (Passion Red W/ Tamper)
  • K400 (Pistachio W/ Tamper)
  • K400 (White)
  • K400 (White W/ Tamper)
  • CO401B (Black)
  • SS401 (Silver)

Our Verdict

KitchenAid K400

Ninja Foodi Power Blender Ultimate System

The KitchenAid K400 and the Ninja Foodi Power Blender Ultimate System have different strengths. The KitchenAid K400 makes a smoother blend with big batches of fibrous ingredients, and it can hot blend, so it's better for multiple servings of smoothies and soups. On the other hand, the Ninja comes with lots of extra accessories, including personal jars for smoothies and a 'Smoothie Maker Bowl' that makes it easy to make thick mixtures like nut butter. There are also extra blades included for tasks like forming dough and slicing vegetables.

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Blue Velvet
K400
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Blue Velvet W/ Tamper
K400
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Candy Apple
K400
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Contour Silver
K400
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Contour Silver W/ Tamper
K400
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Contour Silver W/ Tamper & Personal Jar
K400
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Dried Rose W/ Tamper
K400
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Matte Black
K400
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Matte Black W/ Tamper
K400
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Matte Black W/ Tamper & Personal Jar
K400
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Milkshake W/ Tamper
K400
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Passion Red
K400
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Passion Red W/ Tamper
K400
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Pistachio W/ Tamper
K400
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White W/ Tamper
K400
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Main Differences for
Multi-Purpose

Threshold 

0.10

Multi-Purpose 

8.7
7.1

Hot Blending 
 

Yes
No

Fibrous Ingredients (Full Capacity) 
 

9.7
6.2

Nut Butter 
 

6.9
9.3

Cleaning 
 

7.0
9.0

Fibrous Ingredients (Small Batches) 
 

9.7
8.9

Full Comparison

Design

Dimensions 
 

Blender Type 
 

Full Size Blender
Full Size Blender

Box Picture  

KitchenAid K400 Box Picture
Ninja Foodi Power Blender Ultimate System Box Picture

Height 
 

15.2" (38.7 cm)
14.4" (36.5 cm)

Width  

7.7" (19.5 cm)
7.9" (20.0 cm)

Depth  

9.2" (23.5 cm)
8.9" (22.5 cm)

Weight 
 

13.0 lbs (5.9 kg)
8.2 lbs (3.7 kg)

Shaft Length (Immersion Blenders) 
 

N/A
N/A
Show Text 

Build Quality 
 

8.0
7.5

Build Quality Picture  

KitchenAid K400 Build Quality Picture
Ninja Foodi Power Blender Ultimate System Build Quality Picture
Show Text 

Jar Capacity 
 

7.8
9.8

Main Jar Capacity 
 

56.0 oz (1,656 ml)
72.0 oz (2,129 ml)

Additional Jar Capacity 
 

N/A
18.0 oz (532 ml)
Show Text 

Jar/Beaker Materials 
 

Jar Picture  

KitchenAid K400 Jar Picture
Ninja Foodi Power Blender Ultimate System Jar Picture

Optional Jar Picture  

KitchenAid K400 Optional Jar Picture
Ninja Foodi Power Blender Ultimate System Optional Jar Picture

Jar/Beaker Material 
 

BPA-Free Plastic
BPA-Free Plastic

Dishwasher Safe 
 

Yes
Yes
Show Text 

Blades 
 

Blades Picture  

KitchenAid K400 Blades Picture
Ninja Foodi Power Blender Ultimate System Blades Picture

Blade Type 
 

Sharp
Sharp

Blade Count 
 

4
6

Removable 
 

No
Yes

Dishwasher Safe 
 

Yes
Yes
Show Text 

Lid 
 

Lid Picture  

KitchenAid K400 Lid Picture
Ninja Foodi Power Blender Ultimate System Lid Picture

Two-Part Lid 
 

Yes
No

Lid Closing Type 
 

Friction
Lock Mechanism
Show Text 

Power Cord  

Cable Picture  

KitchenAid K400 Cable Picture
Ninja Foodi Power Blender Ultimate System Cable Picture

Stow-Away Compartment 
 

No
No

Cord Length 
 

3.0 ft (0.9 m)
3.0 ft (0.9 m)
Show Text 

In The Box  

Bundle Picture  

KitchenAid K400 Bundle Picture
Ninja Foodi Power Blender Ultimate System Bundle Picture
Show Text 
Performance

Fibrous Ingredients (Small Batches) 
 

9.7
8.9

Fibrous Ingredients (Small Batches) Photo  

KitchenAid K400 Fibrous Ingredients (Small Batches) Photo
Ninja Foodi Power Blender Ultimate System Fibrous Ingredients (Small Batches) Photo

Jar Used 
 

Main Jar
Additional Jar

Fibrous Ingredients (Small Batches) Video  

Fibrous Ingredients Processing 
 

8.5
8.5

Fibrous Ingredients Texture 
 

10
9.0
Show Text 

Fibrous Ingredients (Full Capacity) 
 

9.7
6.2

Fibrous Ingredients (Full Capacity) Photo  

KitchenAid K400 Fibrous Ingredients (Full Capacity) Photo
Ninja Foodi Power Blender Ultimate System Fibrous Ingredients (Full Capacity) Photo

Fibrous Ingredients (Full Capacity) Video  

Jar Used  

Main Jar
Main Jar

Fibrous Ingredients Processing 
 

8.5
5.0

Fibrous Ingredients Texture 
 

10
6.5
Show Text 

Crushed Ice 
 

9.7
10

Crushed Ice Photo  

KitchenAid K400 Crushed Ice Photo
Ninja Foodi Power Blender Ultimate System Crushed Ice Photo

Crushed Ice Video  

Crushed Ice Preparation 
 

9.0
10

Crushed Ice Texture 
 

10
10
Show Text 

Nut Butter 
 

6.9
9.3

Nut Butter Picture  

KitchenAid K400 Nut Butter Picture
Ninja Foodi Power Blender Ultimate System Nut Butter Picture

Nut Butter Video  

Nut Butter Preparation 
 

3.0
9.0

Nut Butter Texture 
 

9.5
9.5
Show Text 

Noise 
 

6.8
6.7

Noise @ Max Speed 
 

94.8 dB
95.0 dB

Noise Video  

Show Text 

Blade Speed 
 

Min Speed 
 

3,200 RPM
1,500 RPM

Power 
 

1,119 W
1,200 W

Max Speed 
 

16,000 RPM
4,900 RPM

Speed Adjustment Based On Jar Type 
 

No
Yes
Show Text 
Ease Of Use

Controls And Programs 
 

Control Panel  

KitchenAid K400 Control Panel
Ninja Foodi Power Blender Ultimate System Control Panel

On/Off Switch 
 

No
Yes

Speed Presets 
 

0
10

Hot Blending 
 

Yes
No

Speed Dial 
 

Yes
Yes

Pulse/Turbo Mode 
 

Yes
Yes

Programs 
 

4
5

Blending Time Indicator 
 

No
Yes

Programmable Timer 
 

No
No
Show Text 

Cleaning 
 

7.0
9.0

Self-Cleaning Video  

Cleaning Video  

Show Text 

Check Price

Blue Velvet
K400
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Blue Velvet W/ Tamper
K400
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Finding store
 
Candy Apple
K400
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Finding store
 
Contour Silver
K400
Searching
Finding store
 
Contour Silver W/ Tamper
K400
Searching
Finding store
 
Contour Silver W/ Tamper & Personal Jar
K400
Searching
Finding store
 
Dried Rose W/ Tamper
K400
Searching
Finding store
 
Matte Black
K400
Searching
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Matte Black W/ Tamper
K400
Searching
Finding store
 
Matte Black W/ Tamper & Personal Jar
K400
Searching
Finding store
 
Milkshake W/ Tamper
K400
Searching
Finding store
 
Passion Red
K400
Searching
Finding store
 
Passion Red W/ Tamper
K400
Searching
Finding store
 
Pistachio W/ Tamper
K400
Searching
Finding store
 
White W/ Tamper
K400
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Finding store
 

KitchenAid K400

Ninja Foodi Power Blender Ultimate System

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KitchenAid K400 vs Ninja Foodi Power Blender Ultimate System: Main Discussion

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