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Ninja Blender Duo with Auto-iQ BL642 vs Professional Plus Kitchen System with Auto-iQ

Which Blender Is Better?

    Top
    Main Differences
    Design
      DimensionsBuild QualityJar CapacityJar/Beaker MaterialsBladesLidPower CordIn The Box
    Performance
      Fibrous Ingredients (Small Batches)Fibrous Ingredients (Full Capacity)Crushed IceNut ButterNoiseBlade Speed
    Ease Of Use
      Controls And ProgramsCleaning
    Comments

Products

Ninja Blender Duo with Auto-iQ BL642
Ninja Professional Plus Kitchen System with Auto-iQ

Tested using Methodology v1.0

Updated Jan 06, 2025 06:11 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.0.1

Updated Feb 18, 2026 05:33 PM

SEE PRICE
Amazon.com
Ninja Blender Duo with Auto-iQ BL642 Picture

Track

Ninja Professional Plus Kitchen System with Auto-iQ Picture

Track

Blender Type
Full Size Blender
Power
1,200 W
Hot Blending
No
Blender Type
Full Size Blender
Power
1,400 W
Portable
No
Hot Blending
No

Our Verdict

Ninja Blender Duo with Auto-iQ BL642

Ninja Professional Plus Kitchen System with Auto-iQ

The Ninja Blender Duo with Auto-iQ BL642 and the Ninja Professional Plus Kitchen System with Auto-iQ perform very similarly but come with different jars. The Duo comes with a 72-ounce main jar with two or three personal jars, while the Kitchen System comes with a similar main jar, two personal jars, and a separate bowl and blade for food processing.

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Variants

  • BL642 (Black)
  • BL640 (Black)
  • BN805A (Black)
  • BN801 (Gray)

Review

See Ninja Blender Duo with Auto-iQ BL642 Review
See Ninja Professional Plus Kitchen System with Auto-iQ Review
1 
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Check Price

Black
BL642
SEE PRICE
Amazon.com
Black
BN805A
SEE PRICE
Amazon.com
Black
BL640
SEARCH
Amazon.com
Gray
BN801
SEE PRICE
Amazon.com
Black/Silver
BL641
SEE PRICE
Amazon.com
 
Read more

Main Differences for
Multi-Purpose

Threshold 

0.10

Multi-Purpose 
 

6.9
6.9
No major differences between these blenders for multi-purpose. See full list of tests below.

Full Comparison

Design

Dimensions 
 

Box Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Box Picture
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Box Picture

Blender Type 
 

Full Size Blender
Full Size Blender

Portable 
 

No

Height 
 

17.8" (45.2 cm)
18.0" (45.7 cm)

Width  

7.6" (19.2 cm)
7.3" (18.5 cm)

Depth  

10.0" (25.5 cm)
9.6" (24.4 cm)

Weight 
 

8.8 lbs (4.0 kg)
9.3 lbs (4.2 kg)

Shaft Length (Immersion Blenders) 
 

N/A
N/A
Show Text 

Build Quality 
 

8.0
8.0

Build Quality Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Build Quality Picture
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Build Quality Picture
Show Text 

Jar Capacity 
 

9.8
9.8

Main Jar Capacity 
 

72.0 oz (2,129 ml)
72.0 oz (2,129 ml)

Additional Jar Capacity 
 

32.0 oz (946 ml)
24.0 oz (710 ml)
Show Text 

Jar/Beaker Materials 
 

Jar Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Jar Picture
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Jar Picture

Optional Jar Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Optional Jar Picture
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Optional Jar Picture

Jar/Beaker Material 
 

BPA-Free Plastic
BPA-Free Plastic

Dishwasher Safe 
 

Yes
Yes
Show Text 

Blades 
 

Blades Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Blades Picture
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Blades Picture

Blade Type 
 

Sharp
Sharp

Blade Count 
 

6
6

Removable 
 

Yes
Yes

Dishwasher Safe 
 

Yes
Yes
Show Text 

Lid 
 

Lid Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Lid Picture
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Lid Picture

Two-Part Lid 
 

No
No

Lid Closing Type 
 

Lock Mechanism
Lock Mechanism
Show Text 

Power Cord  

Cable Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Cable Picture
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Cable Picture

Stow-Away Compartment 
 

Yes
Yes

Cord Length 
 

2.6 ft (0.8 m)
2.6 ft (0.8 m)
Show Text 

In The Box  

Bundle Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Bundle Picture
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Bundle Picture
Show Text 
Performance

Fibrous Ingredients (Small Batches) 
 

9.3
9.1

Fibrous Ingredients (Small Batches) Photo 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Fibrous Ingredients (Small Batches) Photo
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Fibrous Ingredients (Small Batches) Photo

Jar Used 
 

Additional Jar
Additional Jar

Fibrous Ingredients (Small Batches) Video  

Fibrous Ingredients Processing 
 

8.5
7.5

Fibrous Ingredients Texture 
 

9.5
9.5
Show Text 

Fibrous Ingredients (Full Capacity) 
 

6.8
6.8

Fibrous Ingredients (Full Capacity) Photo 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Fibrous Ingredients (Full Capacity) Photo
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Fibrous Ingredients (Full Capacity) Photo

Fibrous Ingredients (Full Capacity) Video  

Jar Used  

Main Jar
Main Jar

Fibrous Ingredients Processing 
 

6.0
6.0

Fibrous Ingredients Texture 
 

7.0
7.0
Show Text 

Crushed Ice 
 

10
10

Crushed Ice Photo 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Crushed Ice Photo
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Crushed Ice Photo

Crushed Ice Video  

Crushed Ice Preparation 
 

10
10

Crushed Ice Texture 
 

10
10
Show Text 

Nut Butter 
 

8.1
8.3

Nut Butter Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Nut Butter Picture
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Nut Butter Picture

Nut Butter Video  

Nut Butter Preparation 
 

6.0
6.5

Nut Butter Texture 
 

9.5
9.5
Show Text 

Noise 
 

7.4
7.4

Noise @ Max Speed 
 

91.4 dB
91.5 dB

Noise Video  

Show Text 

Blade Speed 
 

Min Speed 
 

3,200 RPM
4,100 RPM

Power 
 

1,200 W
1,400 W

Max Speed 
 

4,600 RPM
5,200 RPM

Speed Adjustment Based On Jar Type 
 

Yes
No
Show Text 
Ease Of Use

Controls And Programs 
 

Control Panel 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Control Panel
Compare High-Res
Ninja Professional Plus Kitchen System with Auto-iQ Control Panel

On/Off Switch 
 

Yes
Yes

Speed Presets 
 

3
3

Hot Blending 
 

No
No

Speed Dial 
 

No
No

Pulse/Turbo Mode 
 

Yes
Yes

Programs 
 

4
5

Blending Time Indicator 
 

Yes
Yes

Programmable Timer 
 

No
No
Show Text 

Cleaning 
 

6.0
6.0

Self-Cleaning Video  

Cleaning Video  

Show Text 

Check Price

Black
BL642
SEE PRICE
Amazon.com
Black
BN805A
SEE PRICE
Amazon.com
Black
BL640
SEARCH
Amazon.com
Gray
BN801
SEE PRICE
Amazon.com
Black/Silver
BL641
SEE PRICE
Amazon.com
 
Back to Top

Ninja Blender Duo with Auto-iQ BL642

Ninja Professional Plus Kitchen System with Auto-iQ

Comments

  1. Comparison
 • Posted 1 year ago

Ninja Blender Duo with Auto-iQ BL642 vs Ninja Professional Plus Kitchen System with Auto-iQ: Main Discussion

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