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Ninja Blender Duo with Auto-iQ BL642 vs Detect Duo Power Blender Pro

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 Detect Duo Power Blender Pro

Tested using Methodology v1.0

Updated Jan 06, 2025 06:11 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.0.1

Updated Apr 15, 2026 01:55 PM

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

Track

Ninja Detect Duo Power Blender Pro Picture

Track

Blender Type
Full Size Blender
Power
1,200 W
Hot Blending
No
Blender Type
Full Size Blender
Power
1,200 W
Portable
No
Hot Blending
No
  1. Recommended in 1 article:
  2. Crushing Ice

Our Verdict

Ninja Blender Duo with Auto-iQ BL642

Ninja Detect Duo Power Blender Pro

The Ninja Blender Duo with Auto-iQ BL642 is better than the Ninja Detect Duo Power Blender Pro. The BL642 makes a smoother blend with fibrous ingredients, which is important for silky smoothies, and it's easier to use for thicker recipes like nut butter. It's also quieter when it's running.

GIFT THIS COMPARISON

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Variants

  • BL642 (Black)
  • BL640 (Black)
  • TB301 (Black)

Review

See Ninja Blender Duo with Auto-iQ BL642 Review
See Ninja Detect Duo Power Blender Pro Review
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Check Price

Black
BL642
SEE PRICE
Amazon.com
Black
TB301
SEE PRICE
Amazon.com
Black
BL640
SEARCH
Amazon.com
Black
TB301
SEE PRICE
BestBuy.com
Black/Silver
BL641
SEE PRICE
Amazon.com
Black
TB301
SEE PRICE
Ninja
 
Black
TB301
SEE PRICE
HomeDepot.com
 
Black
TB301
SEE PRICE
Walmart.com
 
Black
TB301
SEARCH
Lowes.com
Read more

Main Differences for
Multi-Purpose

Threshold 

0.10

Multi-Purpose 
 

6.9
7.1

Nut Butter 
 

8.1
9.0

Fibrous Ingredients (Small Batches) 
 

9.3
10

Full Comparison

Design

Dimensions 
 

Box Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Box Picture
Compare High-Res
Ninja Detect Duo Power Blender Pro Box Picture

Blender Type 
 

Full Size Blender
Full Size Blender

Portable 
 

No

Height 
 

17.8" (45.2 cm)
17.4" (44.1 cm)

Width  

7.6" (19.2 cm)
8.3" (21.0 cm)

Depth  

10.0" (25.5 cm)
8.1" (20.6 cm)

Weight 
 

8.8 lbs (4.0 kg)
8.8 lbs (4.0 kg)

Shaft Length (Immersion Blenders) 
 

N/A
N/A

Build Quality 
 

8.0
7.5

Build Quality Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Build Quality Picture
Compare High-Res
Ninja Detect Duo Power Blender Pro Build Quality Picture

Feet  

Ninja Detect Duo Power Blender Pro Feet

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)

Jar/Beaker Materials 
 

Jar Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Jar Picture
Compare High-Res
Ninja Detect Duo Power Blender Pro Jar Picture

Optional Jar Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Optional Jar Picture
Compare High-Res
Ninja Detect Duo Power Blender Pro Optional Jar Picture

Jar/Beaker Material 
 

BPA-Free Plastic
BPA-Free Plastic

Dishwasher Safe 
 

Yes
Yes

Blades 
 

Blades Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Blades Picture
Compare High-Res
Ninja Detect Duo Power Blender Pro Blades Picture

Blade Type 
 

Sharp
Sharp

Blade Count 
 

6
6

Removable 
 

Yes
Yes

Dishwasher Safe 
 

Yes
Yes

Lid 
 

Lid Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Lid Picture
Compare High-Res
Ninja Detect Duo Power Blender Pro Lid Picture

Two-Part Lid 
 

No
No

Lid Closing Type 
 

Lock Mechanism
Lock Mechanism

Power Cord  

Cable Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Cable Picture
Compare High-Res
Ninja Detect Duo Power Blender Pro Cable Picture

Stow-Away Compartment 
 

Yes
No

Cord Length 
 

2.6 ft (0.8 m)
2.6 ft (0.8 m)

In The Box  

Bundle Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Bundle Picture
Compare High-Res
Ninja Detect Duo Power Blender Pro Bundle Picture
Performance

Fibrous Ingredients (Small Batches) 
 

9.3
10

Fibrous Ingredients (Small Batches) Photo 
 

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

Jar Used 
 

Additional Jar
Additional Jar

Fibrous Ingredients (Small Batches) Video  

Fibrous Ingredients Processing 
 

8.5
10

Fibrous Ingredients Texture 
 

9.5
10

Fibrous Ingredients (Full Capacity) 
 

6.8
7.4

Fibrous Ingredients (Full Capacity) Photo 
 

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

Fibrous Ingredients (Full Capacity) Video  

Jar Used  

Main Jar
Main Jar

Fibrous Ingredients Processing 
 

6.0
7.0

Fibrous Ingredients Texture 
 

7.0
7.5

Crushed Ice 
 

10
10

Crushed Ice Photo 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Crushed Ice Photo
Compare High-Res
Ninja Detect Duo Power Blender Pro Crushed Ice Photo

Crushed Ice Video  

Crushed Ice Preparation 
 

10
10

Crushed Ice Texture 
 

10
10

Nut Butter 
 

8.1
9.0

Nut Butter Picture 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Nut Butter Picture
Compare High-Res
Ninja Detect Duo Power Blender Pro Nut Butter Picture

Nut Butter Video  

Nut Butter Preparation 
 

6.0
7.5

Nut Butter Texture 
 

9.5
10

Noise 
 

7.4
6.3

Noise @ Max Speed 
 

91.4 dB
96.2 dB

Noise Video  

Blade Speed 
 

Min Speed 
 

3,200 RPM
3,700 RPM

Power 
 

1,200 W
1,200 W

Max Speed 
 

4,600 RPM
5,100 RPM

Speed Adjustment Based On Jar Type 
 

Yes
Yes
Ease Of Use

Controls And Programs 
 

Control Panel 
 

Compare High-Res
Ninja Blender Duo with Auto-iQ BL642 Control Panel
Compare High-Res
Ninja Detect Duo Power Blender Pro Control Panel

On/Off Switch 
 

Yes
Yes

Speed Presets 
 

3
10

Hot Blending 
 

No
No

Speed Dial 
 

No
Yes

Pulse/Turbo Mode 
 

Yes
Yes

Programs 
 

4
4

Blending Time Indicator 
 

Yes
Yes

Programmable Timer 
 

No
No

Cleaning 
 

6.0
6.0

Self-Cleaning Video  

Cleaning Video  

Check Price

Black
BL642
SEE PRICE
Amazon.com
Black
TB301
SEE PRICE
Amazon.com
Black
BL640
SEARCH
Amazon.com
Black
TB301
SEE PRICE
BestBuy.com
Black/Silver
BL641
SEE PRICE
Amazon.com
Black
TB301
SEE PRICE
Ninja
 
Black
TB301
SEE PRICE
HomeDepot.com
 
Black
TB301
SEE PRICE
Walmart.com
 
Black
TB301
SEARCH
Lowes.com
Back to Top

Ninja Blender Duo with Auto-iQ BL642

Ninja Detect Duo Power Blender Pro

Comments

  1. Comparison
 • Posted 2 years ago

Ninja Blender Duo with Auto-iQ BL642 vs Ninja Detect Duo Power Blender Pro: Main Discussion

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