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KOIOS 4-In-1 vs. Chefman Vegetable Slicer 6-in-1 Side-by-Side Comparison

KOIOS 4-in-1 vs. Chefman Vegetable Slicer 6-in-1. We compare these immersion blenders in terms of efficiency, features, and specifications.

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KOIOS 4-In-1

Chefman Vegetable Slicer 6-in-1

KOIOS 4-In-1 vs. Chefman Vegetable Slicer 6-in-1:  Comparison of Specs, Features, and Efficiency

Overall Verdict

The two are basic, mid-range immersion blenders. In our efficiency testing, however, the KOIOS 4-in-1 outperformed the other. Compared with the Chefman 6-in-1, it blended frozen fruits faster and produced more silky pureé. It also ground nuts more evenly, churning out a serving of milk that was apparently richer in almond flavor.

Design-wise, they are pretty evenly matched, with reliable build quality for daily use. Still, we mostly agree the KOIOS 4-in-1 looks more catchy. Its design also allows the motor to run smoothly and is more comfortable to use on tough blends. In conclusion, if you have to choose between these models, we’d like to recommend the KOIOS 4-in-1 over the Chefman 6-in-1.

Ranking by
OverallScore Performance50% Design20% Usability30% ScoreOverall 50%Performance 20%Design 30%UsabilityKOIOS 4-In-1Chefman Vegetable S...8.07.97.68.36.65.86.87.8
Showing: 2/2 Items

Pros & Cons

  • The motor doesn’t vibrate as violently as others.
  • Extra attachments are included for a wider range of tasks.
  • It is easy to attach, remove, and clean the blending accessories.
  • The silicone buttons are responsive.
  • Its durability is backed up by a 2-year warranty.
  • We don't have to sacrifice efficiency for a bargain.
  • It can blend frozen fruits, chop vegetables, emulsify sauces, and beat eggs.
  • The motor runs quietly.
  • Its accessory package includes many helpful pieces.
  • The ergonomically-designed handle provides a comfortable grip.
  • The blade guard can cause damage to the cookware’s surface.
  • The motor rating is 400 watts rather than its advertised rating of 800 watts.
  • The metal blending shaft and whisk damaged our cookware’s surface.

Key Specs

Dimension
H15.3 x W2.1 inches
H14.6 x W2.5 inche
Weight
3.4 lbs (1.5 kg)
1.5 lbs
Number of speeds
13
2
Pulse/Turbo option
Yes
No
Min speed
11,500 RPM
10,479 RPM
Max speed
14,480 RPM
13,211 RPM

Where to Buy

Price at publication
$39.98
$45.81

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Analysis and Test Results

Performance

Overall Performance Scoring
7.9
5.8

Hot Soup Purée

7.5
5.0
Scooping a spoon of pureéd soup made by the KOIOS 800W immersion hand blender from a plastic beaker.
Scooping a spoon of pureéd soup made by the KOIOS 800W immersion hand blender from a plastic beaker.
KOIOS 4-In-1 Immersion Hot Soup
A batch of soup pureéd by the KOIOS 4-in-1 hand blender is checked for smoothness by being drained through a stainless steel mesh strainer.
Scooping a spoon of pureéd soup from its full batch in a plastic beaker made by the Chefman Food Prep Kit immersion blender.
Scooping a spoon of pureéd soup from its full batch in a plastic beaker made by the Chefman Food Prep Kit immersion blender.
A batch of soup pureéd by the Chefman Spiralizing Food Prep Kit immersion blender is checked for smoothness by being drained through a stainless steel mesh strainer.
Chefman Vegetable Slicer 6-in-1 Immersion Blender Hot Soup Purée Test
Pureeing Time
30 seconds
30 seconds
Result
Slightly Chunky
Slightly chunky
Suction
No
Slightly

Frozen Fruit Smoothie

7.8
5.0
A white bowl containing a batch of green smoothie whose parts are scooped with a stainless steel spoon is between the KOIOS’s motor body and a smartphone displaying the total blending time (1 minute and 19 seconds).
A white bowl containing a batch of green smoothie whose parts are scooped with a stainless steel spoon is between the KOIOS’s motor body and a smartphone displaying the total blending time (1 minute and 19 seconds).
KOIOS 4-In-1 Immersion Smoothie
After finishing blending, the green smoothie made by the KOIOS hand blender was spread evenly throughout a white paper to check for solid chunks.
A plastic beaker containing a batch of green smoothie whose parts are scooped with a stainless steel spoon is between the Chefman Vegetable Slicer 6-in-1 Immersion Blender motor body and a smartphone displaying the total blending time (2 minutes and 30 seconds).
A plastic beaker containing a batch of green smoothie whose parts are scooped with a stainless steel spoon is between the Chefman Vegetable Slicer 6-in-1 Immersion Blender motor body and a smartphone displaying the total blending time (2 minutes and 30 seconds).
After finishing blending, the green smoothie made by the Chefman hand blender was spread evenly throughout a white paper to check for solid chunks.
Chefman Vegetable Slicer 6-in-1 Immersion Blender Smoothie Test
Blending Time
1 min 20 secs
2 mins 30 secs
Result
Slightly Coarse
Smooth
Suction
No
Slightly

Mayonnaise

9.8
9.0
A little bit of mayonnaise sticking in the whisk attachment of the KOIOS 4-in-1 hand blender when it is removed from the full batch emulsified in a plastic beaker standing between the motor body and a smartphone displaying the total emulsion time (1 minute and 10 seconds).
A little bit of mayonnaise sticking in the whisk attachment of the KOIOS 4-in-1 hand blender when it is removed from the full batch emulsified in a plastic beaker standing between the motor body and a smartphone displaying the total emulsion time (1 minute and 10 seconds).
KOIOS 4-In-1 Immersion Mayonnaise
Scooping a spoon of mayonnaise from its full batch made by the Chefman immersion blender and contained in a plastic beaker that stands between the Chefman’s motor and a smartphone displaying the total mixing time ( 1 minute and 30 seconds).
Scooping a spoon of mayonnaise from its full batch made by the Chefman immersion blender and contained in a plastic beaker that stands between the Chefman’s motor and a smartphone displaying the total mixing time ( 1 minute and 30 seconds).
Scooping a spoon of mayonnaise from its full batch in a plastic beaker made by the Chefman corded hand blender.
Chefman Vegetable Slicer 6-in-1 Immersion Blender Mayonnaise Test
Emulsifying Time
1 min 10 secs
1 min 30 secs
Result
Velvety
Smooth
Suction
No
Yes

Almond Milk

7.5
5.0
The KOIOS’s motor body, a plastic beaker containing almond milk, a white plate of almond pulp, and a small red note displaying the total grinding time (1 minute 30 seconds) being side by side.
The KOIOS’s motor body, a plastic beaker containing almond milk, a white plate of almond pulp, and a small red note displaying the total grinding time (1 minute 30 seconds) being side by side.
KOIOS 4-In-1 Immersion Almond Milk
A white plate of almond pulp produced by the Chefman corded stick blender being between the Chefman’s motor body and a smartphone displaying the total grinding time (1 minute and 50 seconds).
A white plate of almond pulp produced by the Chefman corded stick blender being between the Chefman’s motor body and a smartphone displaying the total grinding time (1 minute and 50 seconds).
Chefman Vegetable Slicer 6-in-1 Immersion Blender Almond Milk Test
Grinding Time
1 min 10 secs
1 min 50 secs
Result
Fine
Coarse
Suction
No
Tightly

Whipped Egg-Whites

7.0
10
The 24-oz plastic beaker containing testing beaten egg-white of the KOIOS 4-in-1 immersion blender is put upside down on the gray table with its motor body and a smartphone displaying the total whipping time (2 minutes and 41 seconds) by its sides.
The 24-oz plastic beaker containing testing beaten egg-white of the KOIOS 4-in-1 immersion blender is put upside down on the gray table with its motor body and a smartphone displaying the total whipping time (2 minutes and 41 seconds) by its sides.
KOIOS 4-In-1 Immersion Whipped Egg-Whites
The plastic beaker containing testing beaten egg-white of the Chefman immersion blender is put upside down on the white table with its motor body and a smartphone displaying the total whipping time (1 minute and 29seconds) by its sides.
The plastic beaker containing testing beaten egg-white of the Chefman immersion blender is put upside down on the white table with its motor body and a smartphone displaying the total whipping time (1 minute and 29seconds) by its sides.
Looking at the beaten egg-white of the Chefman Stick Blender contained inside a plastic beaker.
Chefman Vegetable Slicer 6-in-1 Immersion Blender Whipped Egg-Whites Test
Beating Time
2 min 40 secs
1 min 30 secs
Result
Stiff
Stiff
Suction
No
No

Design

Overall Design Scoring
7.6
6.8

In the Box

The KOIOS 4-in-1 Stick Blender is shipped with a paper carton box, an immersion blending wand, a motor body, a plastic beaker, a whisk attachment, a food processor, and a user manual.
The Chefman Immersion Blender and its accessories, including a whisk attachment, three spiralizing blades, a spiralizer, a food processor, and a user manual.

Dimensions

The KOIOS 4-in Immersion Blender stands on top of its blending shaft on a gray table, with the length of the blending shaft being noted to the side as 7.9 inches, and the total length of the unit as 15.3 inches.
The Chefman hand-held blender standing on top of its blending shaft on a gray table, with the length of the blending shaft being noted to the side as 7.9 inches, and the total length of the unit as 14.6 inches.
Height
15.3" (38.9 cm)
14.6" (37.1 cm)
Width
2.1" (5.3 cm)
2.5" (6.4 cm)
Weight
3.4 lbs (1.5 kg)
1.5 lbs (0.7 kg)
Shaft Length
7.9" (20.1 cm)
7.9" (20.1 cm)

Build Quality

7.5
7.0
The whisk attachment, motor body, and blending shaft of the KOIOS 4-in-1 hand-held blender lying flat on a gray table.
The blending wand and motor body of the Chefman blender lying side by side on a white table.

Speed and Controls

A close-up of the Power button and the TURBO button of the KOIOS 4-in-1.
A close-up of the Power button and the TURBO button of the KOIOS 4-in-1.
A close-up of 12 speed settings on the top of the KOIOS’s motor body.
A close-up of two speed settings of the Chefman corded blender.
Activation
Press-button & speed dial
Press
Min Speed
11,500 RPM
10,479 RPM
Max Speed
14,480 RPM
13,211 RPM
Presets
No
No
Noise Level
90 dB
72 dB
Digital Display
No
No
Pulse Mode
Yes
Yes

Blending Shaft

7.0
7.0
The blending wand of the KOIOS 4-in-1 hand blender lying flat on a gray table.
A close-up of the stainless steel blade assembly featuring two prongs of the Chefman blender.
Material
Stainless steel
Stainless steel
Type
Sharp Blade
Sharp blade
Guard Material
Stainless steel
Stainless steel
Blade Count
2
2
Removable
Yes
No
Dishwasher Safe
Yes
Yes

Beaker

10
0.0
An included plastic beaker of the KOIOS 4-in-1 hand blender standing on a gray table.
Material
Plastic
 N/A
Capacity
20 oz
NaN fl oz (NaN ml)
Measurements
Yes
 N/A
Weight
0.22 lb
NaN oz (NaN g)
Height
6.7" (17.0 cm)
NaN" (NaN cm)
Dishwasher Safe
Yes
 N/A

Power Cord

10
10
The KOIOS 4-in-1 Immersion Blender on a gray table with its power cord rolled up next to it.
The Chefman Immersion Blender on a white table with its power cord that features a 2-prong plug rolled up next to it.
Cord Length
5.6 ft (1.7 m)
5.3 ft (1.6 m)
Type
2-prong plug
2-prong plug
Detachable
No
No

Extra Accessories

The KOIOS 4-in-1 Immersion Blender Whisk Attachment lying flat on a gray table.
The Chefman 6-in-1 Immersion Blender Whisk Attachment lying flat on a white table.
Material
Stainless steel
Stainless steel
Dishwasher Safe
Yes
Yes
Removable
Yes
Yes

Usability

Overall Usability Scoring
8.3
7.8

Ease of Use

8.3
7.6

Handling

8.0
7.5
Someone uses two hands to control the KOIOIS immersion blender: one for holding the handle and pressing the power button at the same time, the other for rotating the speed dial.
Someone is holding the Chefman’s handle with one hand.

Blade Assembly

8.5
9.0
The KOIOS Blade Assembly

Cleanability

8.5
8.5

Behind the Comparison

Headshot of Tina Pham
Tina PhamReviewer

Tina Pham is a staff writer and reviewer, with five years of experience in the industry. As a passionate amateur home cook, she loves to discover practical cooking solutions, and has made it her mission to bring her findings to every kitchen. Her ultimate goal is making cooking more of a pleasure for all.

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Lap VoTest Lead

Lap is Head of the Research, Testing, and Review Team (RTR Team) at HealthyKitchen101.com, where he directs and supervises the testing of kitchen gadgets and appliances.

Headshot of Tuyet Pham
Tuyet PhamProfessional Chef

Tuyet Pham is an award-winning Saigonese chef passionate about delicious and healthful foods. At HealthyKitchen101, she develops recipes and collaborates with our Research, Testing, and Review lab to evaluate the performance of cooking appliances. Her assessments add a strong authoritative voice to our product scoring process.

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Nguyen NtkVisual Specialist

Nguyen Ntk is a graphic designer, photographer, and videographer whose philosophy centers around respecting and celebrating the beauty of reality. Through his lenses, Nguyen strives to capture the true essence of objects and events, showcasing and highlighting authentic features without distortion or exaggeration.

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