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Ninja DUO vs Blender Duo with Auto-iQ BL642

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 DUO
Ninja Blender Duo with Auto-iQ BL642

Tested using Methodology v1.0

Updated Jan 06, 2025 06:11 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.0

Updated Jan 06, 2025 06:11 PM

SEE PRICE
Amazon.com
Ninja DUO Picture

Track

Ninja Blender Duo with Auto-iQ BL642 Picture

Track

Blender Type
Full Size Blender
Power
1,100 W
Hot Blending
No
Blender Type
Full Size Blender
Power
1,200 W
Hot Blending
No

Our Verdict

Ninja DUO

Ninja Blender Duo with Auto-iQ BL642

The Ninja DUO and the Ninja Blender Duo with Auto-iQ BL642 are full-size blenders with personal jars for smoothies and have different strengths. The DUO makes a smoother blend with fibrous ingredients and has a juicer attachment. On the other hand, the BL642 is much quieter when running and also makes well-blended single-serve smoothies if you use its personal jars.

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Variants

  • IV701 (Black)
  • BL642 (Black)
  • BL640 (Black)

Review

See Ninja DUO Review
See Ninja Blender Duo with Auto-iQ BL642 Review
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1 

Check Price

Black
IV701
SEE PRICE
Amazon.com
Black
BL642
SEE PRICE
Amazon.com
Black
IV701
SEE PRICE
BestBuy.com
Black
BL640
SEARCH
Amazon.com
Black
IV701
SEE PRICE
Walmart.com
Black/Silver
BL641
SEE PRICE
Amazon.com
Black
IV701
SEARCH
Lowes.com
 
Black
IV701
SEARCH
HomeDepot.com
 
Black
IV701
SEARCH
Ninja
 

Main Differences for
Multi-Purpose

Threshold 

0.10

Multi-Purpose 
 

7.2
6.9

Fibrous Ingredients (Full Capacity) 
 

9.4
6.8

Full Comparison

Design

Dimensions 
 

Blender Type 
 

Full Size Blender
Full Size Blender

Box Picture 
 

Compare High-Res
Ninja DUO Box Picture
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Box Picture

Height 
 

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

Width  

7.2" (18.2 cm)
7.6" (19.2 cm)

Depth  

10.0" (25.5 cm)
10.0" (25.5 cm)

Weight 
 

9.8 lbs (4.4 kg)
8.8 lbs (4.0 kg)

Shaft Length (Immersion Blenders) 
 

N/A
N/A
Show Text 

Build Quality 
 

8.0
8.0

Build Quality Picture 
 

Compare High-Res
Ninja DUO Build Quality Picture
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 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 
 

20.0 oz (591 ml)
32.0 oz (946 ml)
Show Text 

Jar/Beaker Materials 
 

Jar Picture 
 

Compare High-Res
Ninja DUO Jar Picture
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Jar Picture

Optional Jar Picture 
 

Compare High-Res
Ninja DUO Optional Jar Picture
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 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 DUO Blades Picture
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Blades Picture

Blade Type 
 

Sharp
Sharp

Blade Count 
 

8
6

Removable 
 

No
Yes

Dishwasher Safe 
 

Yes
Yes
Show Text 

Lid 
 

Lid Picture 
 

Compare High-Res
Ninja DUO Lid Picture
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Lid Picture

Two-Part Lid 
 

No
No

Lid Closing Type 
 

Lock Mechanism
Lock Mechanism
Show Text 

Power Cord  

Cable Picture 
 

Compare High-Res
Ninja DUO Cable Picture
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Cable Picture

Stow-Away Compartment 
 

Yes
Yes

Cord Length 
 

3.0 ft (0.9 m)
2.6 ft (0.8 m)
Show Text 

In The Box  

Bundle Picture 
 

Compare High-Res
Ninja DUO Bundle Picture
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Bundle Picture
Show Text 
Performance

Fibrous Ingredients (Small Batches) 
 

9.9
9.3

Fibrous Ingredients (Small Batches) Photo 
 

Compare High-Res
Ninja DUO Fibrous Ingredients (Small Batches) Photo
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Fibrous Ingredients (Small Batches) Photo

Jar Used 
 

Additional Jar
Additional Jar

Fibrous Ingredients (Small Batches) Video  

Fibrous Ingredients Processing 
 

9.5
8.5

Fibrous Ingredients Texture 
 

10
9.5
Show Text 

Fibrous Ingredients (Full Capacity) 
 

9.4
6.8

Fibrous Ingredients (Full Capacity) Photo 
 

Compare High-Res
Ninja DUO Fibrous Ingredients (Full Capacity) Photo
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Fibrous Ingredients (Full Capacity) Photo

Fibrous Ingredients (Full Capacity) Video  

Jar Used  

Main Jar
Main Jar

Fibrous Ingredients Processing 
 

9.0
6.0

Fibrous Ingredients Texture 
 

9.5
7.0
Show Text 

Crushed Ice 
 

9.6
10

Crushed Ice Photo 
 

Compare High-Res
Ninja DUO Crushed Ice Photo
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Crushed Ice Photo

Crushed Ice Video  

Crushed Ice Preparation 
 

8.5
10

Crushed Ice Texture 
 

10
10
Show Text 

Nut Butter 
 

7.8
8.1

Nut Butter Picture 
 

Compare High-Res
Ninja DUO Nut Butter Picture
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Nut Butter Picture

Nut Butter Video  

Nut Butter Preparation 
 

6.0
6.0

Nut Butter Texture 
 

9.0
9.5
Show Text 

Noise 
 

5.8
7.4

Noise @ Max Speed 
 

97.8 dB
91.4 dB

Noise Video  

Show Text 

Blade Speed 
 

Min Speed 
 

17,600 RPM
3,200 RPM

Power 
 

1,100 W
1,200 W

Max Speed 
 

20,500 RPM
4,600 RPM

Speed Adjustment Based On Jar Type 
 

No
Yes
Show Text 
Ease Of Use

Controls And Programs 
 

Control Panel 
 

Compare High-Res
Ninja DUO Control Panel
Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Control Panel

On/Off Switch 
 

Yes
Yes

Speed Presets 
 

2
3

Hot Blending 
 

No
No

Speed Dial 
 

No
No

Pulse/Turbo Mode 
 

Yes
Yes

Programs 
 

6
4

Blending Time Indicator 
 

Yes
Yes

Programmable Timer 
 

No
No
Show Text 

Cleaning 
 

6.5
6.0

Self-Cleaning Video  

Cleaning Video  

Show Text 

Check Price

Black
IV701
SEE PRICE
Amazon.com
Black
BL642
SEE PRICE
Amazon.com
Black
IV701
SEE PRICE
BestBuy.com
Black
BL640
SEARCH
Amazon.com
Black
IV701
SEE PRICE
Walmart.com
Black/Silver
BL641
SEE PRICE
Amazon.com
Black
IV701
SEARCH
Lowes.com
 
Black
IV701
SEARCH
HomeDepot.com
 
Black
IV701
SEARCH
Ninja
 
Back to Top

Ninja DUO

Ninja Blender Duo with Auto-iQ BL642

Comments

  1. Comparison
 • Posted 2 years ago

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

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