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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

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

Side-by-Side Comparison

Products

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

Tested using Methodology v1.0

Updated Sep 24, 2024 05:16 PM

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Amazon.com

Tested using Methodology v1.0

Updated Jan 06, 2025 07:55 PM

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Amazon.com
Ninja Blender Duo with Auto-iQ BL642 Picture
Ninja Professional Plus Blender with Auto-iQ Picture
  1. Recommended in 1 article:
  2. Crushing Ice

Variants

  • BL642 (Black)
  • BL640 (Black)
  • BL641 (Black/Silver)
  • BN700 (Black)
  • BN701 (Dark Gray)

Our Verdict

Ninja Blender Duo with Auto-iQ BL642

Ninja Professional Plus Blender with Auto-iQ

The Ninja Blender Duo with Auto-iQ BL642 and the Ninja Professional Plus Blender with Auto-iQ have a similar design and a similar performance in their 72-ounce main jars. However, the BL642 is better for making single-serve smoothies because it comes with three personal jars that you can use to make a well-blended smoothie with fibrous ingredients like kale. It's also somewhat quieter when it's running.

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Black/Silver
BL641
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Main Differences for

Threshold 

0.10

Multi-Purpose 

6.9
6.5

Fibrous Ingredients (Small Batches) 
 

9.3
6.6

Full Comparison

Design

Dimensions 
 

Blender Type 
 

Full Size Blender
Full Size Blender

Box Picture  

Ninja Blender Duo with Auto-iQ BL642 Box Picture
Ninja Professional Plus Blender with Auto-iQ Box Picture

Height 
 

17.8" (45.2 cm)
17.4" (44.2 cm)

Width  

7.6" (19.2 cm)
7.2" (18.4 cm)

Depth  

10.0" (25.5 cm)
8.7" (22.2 cm)

Weight 
 

8.8 lbs (4.0 kg)
7.9 lbs (3.6 kg)

Shaft Length (Immersion Blenders) 
 

N/A
N/A

Show text

Build Quality 
 

8.0
8.0

Build Quality Picture  

Ninja Blender Duo with Auto-iQ BL642 Build Quality Picture
Ninja Professional Plus Blender 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)
N/A

Show text

Jar/Beaker Materials 
 

Jar Picture  

Ninja Blender Duo with Auto-iQ BL642 Jar Picture
Ninja Professional Plus Blender with Auto-iQ Jar Picture

Optional Jar Picture  

Ninja Blender Duo with Auto-iQ BL642 Optional Jar Picture
Ninja Professional Plus Blender with Auto-iQ Optional Jar Picture

Jar/Beaker Material 
 

BPA-Free Plastic
BPA-Free Plastic

Dishwasher Safe 
 

Yes
Yes

Show text

Blades 
 

Blades Picture  

Ninja Blender Duo with Auto-iQ BL642 Blades Picture
Ninja Professional Plus Blender 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  

Ninja Blender Duo with Auto-iQ BL642 Lid Picture
Ninja Professional Plus Blender with Auto-iQ Lid Picture

Two-Part Lid 
 

No
No

Lid Closing Type 
 

Lock Mechanism
Lock Mechanism

Show text

Power Cord  

Cable Picture  

Ninja Blender Duo with Auto-iQ BL642 Cable Picture
Ninja Professional Plus Blender 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  

Ninja Blender Duo with Auto-iQ BL642 Bundle Picture
Ninja Professional Plus Blender with Auto-iQ Bundle Picture

Show text

Performance

Fibrous Ingredients (Small Batches) 
 

9.3
6.6

Fibrous Ingredients (Small Batches) Photo  

Ninja Blender Duo with Auto-iQ BL642 Fibrous Ingredients (Small Batches) Photo
Ninja Professional Plus Blender with Auto-iQ Fibrous Ingredients (Small Batches) Photo

Jar Used 
 

Additional Jar
Main Jar

Fibrous Ingredients (Small Batches) Video  

Fibrous Ingredients Processing 
 

8.5
5.0

Fibrous Ingredients Texture 
 

9.5
7.0

Show text

Fibrous Ingredients (Full Capacity) 
 

6.8
6.8

Fibrous Ingredients (Full Capacity) Photo  

Ninja Blender Duo with Auto-iQ BL642 Fibrous Ingredients (Full Capacity) Photo
Ninja Professional Plus Blender 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  

Ninja Blender Duo with Auto-iQ BL642 Crushed Ice Photo
Ninja Professional Plus Blender 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
8.1

Nut Butter Picture  

Ninja Blender Duo with Auto-iQ BL642 Nut Butter Picture
Ninja Professional Plus Blender with Auto-iQ Nut Butter Picture

Nut Butter Video  

Nut Butter Preparation 
 

6.0
6.0

Nut Butter Texture 
 

9.5
9.5

Show text

Noise 
 

7.4
7.8

Noise @ Max Speed 
 

91.4 dB
89.4 dB

Noise Video  

Show text

Blade Speed 
 

Min Speed 
 

3,200 RPM
3,700 RPM

Power 
 

1,200 W
1,400 W

Max Speed 
 

4,600 RPM
5,000 RPM

Speed Adjustment Based On Jar Type 
 

Yes
No

Show text

Ease Of Use

Controls And Programs 
 

Control Panel  

Ninja Blender Duo with Auto-iQ BL642 Control Panel
Ninja Professional Plus Blender 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
3

Blending Time Indicator 
 

Yes
No

Programmable Timer 
 

No
No

Show text

Cleaning 
 

6.0
6.0

Self-Cleaning Video  

Cleaning Video  

Show text

Check Price

Black/Silver
BL641
Searching
Finding store
 

Ninja Blender Duo with Auto-iQ BL642

Ninja Professional Plus Blender with Auto-iQ

Comments

  1. Comparison

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

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