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  1. Home
  2. Blender
  3. Compare
  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

Vitamix A3500 vs Ninja Blender Duo with Auto-iQ BL642

Side-by-Side Comparison

Products

Vitamix A3500
Ninja Blender Duo with Auto-iQ BL642

Tested using Methodology v1.0

Updated Feb 13, 2025 05:56 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.0

Updated Sep 24, 2024 05:16 PM

SEE PRICE
Amazon.com
Vitamix A3500 Picture
Ninja Blender Duo with Auto-iQ BL642 Picture
Blender Type
Full Size Blender
Power
1,640 W
Hot Blending
Yes
Blender Type
Full Size Blender
Power
1,200 W
Hot Blending
No
  1. Recommended in 5 articles:
  2. Blenders
  3. Smoothies
  4. Vitamix
  5. Crushing Ice
  6. Frozen Drinks

Variants

  • A3500 (Black Stainless Metal Finish)
  • A3500 (Black W/ Stainless Steel Container)
  • A3500 (Brushed Stainless Metal Finish)
  • A3500 (Candy Apple Red)
  • A3500 (Copper)
  • A3500 (Graphite Metal Finish)
  • A3500 (Matte Navy)
  • A3500 (Matte Sage)
  • A3500 (Silver W/ Entertaining Bundle)
  • A3500 (White)
  • A3500 Gourmet SmartPrep Kitchen System (White)
  • BL642 (Black)
  • BL640 (Black)
  • BL641 (Black/Silver)

Review

See Vitamix A3500 Review
See Ninja Blender Duo with Auto-iQ BL642 Review
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Our Verdict

Vitamix A3500

Ninja Blender Duo with Auto-iQ BL642

The Vitamix A3500 is better for most purposes than the Ninja Blender Duo with Auto-iQ BL642. The Vitamix has a significantly better build quality. It's better at processing fibrous ingredients and making nut butter. You can also use it to hot blend, and it's easier to clean by hand. However, the Ninja comes with smaller blending jars with resealable lids for making single-serve drinks like smoothies.

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Check Price

Black Stainless Metal Finish
A3500
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Black
BL642
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Black W/ Stainless Steel Container
A3500
Searching
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Black
BL640
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Brushed Stainless Metal Finish
A3500
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Black/Silver
BL641
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Candy Apple Red
A3500
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Copper
A3500
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Graphite Metal Finish
A3500
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Matte Navy
A3500
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Matte Sage
A3500
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Silver W/ Entertaining Bundle
A3500
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White
A3500
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White
A3500 Gourmet SmartPrep Kitchen System
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Main Differences for
Multi-Purpose

Threshold 

0.10

Multi-Purpose 

9.3
6.9

Hot Blending 
 

Yes
No

Fibrous Ingredients (Full Capacity) 
 

10
6.8

Cleaning 
 

7.5
6.0

Nut Butter 
 

8.8
8.1

Fibrous Ingredients (Small Batches) 
 

10
9.3

Build Quality 
 

9.0
8.0

Full Comparison

Design

Dimensions 
 

Blender Type 
 

Full Size Blender
Full Size Blender

Box Picture  

Vitamix A3500 Box Picture
Ninja Blender Duo with Auto-iQ BL642 Box Picture

Height 
 

17.1" (43.4 cm)
17.8" (45.2 cm)

Width  

8.0" (20.4 cm)
7.6" (19.2 cm)

Depth  

11.3" (28.6 cm)
10.0" (25.5 cm)

Weight 
 

14.9 lbs (6.8 kg)
8.8 lbs (4.0 kg)

Shaft Length (Immersion Blenders) 
 

N/A
N/A
Show Text 

Build Quality 
 

9.0
8.0

Build Quality Picture  

Vitamix A3500 Build Quality Picture
Ninja Blender Duo with Auto-iQ BL642 Build Quality Picture
Show Text 

Jar Capacity 
 

9.0
9.8

Main Jar Capacity 
 

64.0 oz (1,893 ml)
72.0 oz (2,129 ml)

Additional Jar Capacity 
 

N/A
32.0 oz (946 ml)
Show Text 

Jar/Beaker Materials 
 

Jar Picture  

Vitamix A3500 Jar Picture
Ninja Blender Duo with Auto-iQ BL642 Jar Picture

Optional Jar Picture  

Vitamix A3500 Optional Jar Picture
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  

Vitamix A3500 Blades Picture
Ninja Blender Duo with Auto-iQ BL642 Blades Picture

Blade Type 
 

Sharp
Sharp

Blade Count 
 

4
6

Removable 
 

No
Yes

Dishwasher Safe 
 

Yes
Yes
Show Text 

Lid 
 

Lid Picture  

Vitamix A3500 Lid Picture
Ninja Blender Duo with Auto-iQ BL642 Lid Picture

Two-Part Lid 
 

Yes
No

Lid Closing Type 
 

Friction
Lock Mechanism
Show Text 

Power Cord  

Cable Picture  

Vitamix A3500 Cable Picture
Ninja Blender Duo with Auto-iQ BL642 Cable Picture

Stow-Away Compartment 
 

Yes
Yes

Cord Length 
 

3.9 ft (1.2 m)
2.6 ft (0.8 m)
Show Text 

In The Box  

Bundle Picture  

Vitamix A3500 Bundle Picture
Ninja Blender Duo with Auto-iQ BL642 Bundle Picture
Show Text 
Performance

Fibrous Ingredients (Small Batches) 
 

10
9.3

Fibrous Ingredients (Small Batches) Photo  

Vitamix A3500 Fibrous Ingredients (Small Batches) Photo
Ninja Blender Duo with Auto-iQ BL642 Fibrous Ingredients (Small Batches) Photo

Jar Used 
 

Main Jar
Additional Jar

Fibrous Ingredients (Small Batches) Video  

Fibrous Ingredients Processing 
 

10
8.5

Fibrous Ingredients Texture 
 

10
9.5
Show Text 

Fibrous Ingredients (Full Capacity) 
 

10
6.8

Fibrous Ingredients (Full Capacity) Photo  

Vitamix A3500 Fibrous Ingredients (Full Capacity) Photo
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 
 

10
6.0

Fibrous Ingredients Texture 
 

10
7.0
Show Text 

Crushed Ice 
 

10
10

Crushed Ice Photo  

Vitamix A3500 Crushed Ice Photo
Ninja Blender Duo with Auto-iQ BL642 Crushed Ice Photo

Crushed Ice Video  

Crushed Ice Preparation 
 

10
10

Crushed Ice Texture 
 

10
10
Show Text 

Nut Butter 
 

8.8
8.1

Nut Butter Picture  

Vitamix A3500 Nut Butter Picture
Ninja Blender Duo with Auto-iQ BL642 Nut Butter Picture

Nut Butter Video  

Nut Butter Preparation 
 

7.0
6.0

Nut Butter Texture 
 

10
9.5
Show Text 

Noise 
 

7.2
7.4

Noise @ Max Speed 
 

92.8 dB
91.4 dB

Noise Video  

Show Text 

Blade Speed 
 

Min Speed 
 

1,400 RPM
3,200 RPM

Power 
 

1,640 W
1,200 W

Max Speed 
 

22,800 RPM
4,600 RPM

Speed Adjustment Based On Jar Type 
 

Yes
Yes
Show Text 
Ease Of Use

Controls And Programs 
 

Control Panel  

Vitamix A3500 Control Panel
Ninja Blender Duo with Auto-iQ BL642 Control Panel

On/Off Switch 
 

Yes
Yes

Speed Presets 
 

0
3

Hot Blending 
 

Yes
No

Speed Dial 
 

Yes
No

Pulse/Turbo Mode 
 

Yes
Yes

Programs 
 

5
4

Blending Time Indicator 
 

Yes
Yes

Programmable Timer 
 

Yes
No
Show Text 

Cleaning 
 

7.5
6.0

Self-Cleaning Video  

Cleaning Video  

Show Text 

Check Price

Black Stainless Metal Finish
A3500
Searching
Finding store
Black
BL642
Searching
Finding store
Black W/ Stainless Steel Container
A3500
Searching
Finding store
Black
BL640
Searching
Finding store
Brushed Stainless Metal Finish
A3500
Searching
Finding store
Black/Silver
BL641
Searching
Finding store
Candy Apple Red
A3500
Searching
Finding store
 
Copper
A3500
Searching
Finding store
 
Graphite Metal Finish
A3500
Searching
Finding store
 
Matte Navy
A3500
Searching
Finding store
 
Matte Sage
A3500
Searching
Finding store
 
Silver W/ Entertaining Bundle
A3500
Searching
Finding store
 
White
A3500
Searching
Finding store
 
White
A3500 Gourmet SmartPrep Kitchen System
Searching
Finding store
 
Back to Top

Vitamix A3500

Ninja Blender Duo with Auto-iQ BL642

Comments

  1. Comparison
 • Posted 1 year ago

Vitamix A3500 vs Ninja Blender Duo with Auto-iQ BL642: Main Discussion

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