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KOIOS 4-In-1 vs. Chefman Cordless Side-by-Side Comparison

KOIOS 4-in-1 vs. Chefman Cordless. We put these immersion blenders through rigorous testing to see how they compare against each other.

By , , and Updated

KOIOS 4-In-1

Chefman Cordless

KOIOS 4-In-1 vs. Chefman Cordless: The Two Attract Different Buyers

Overall Verdict

8.0
Overall Score
8.0
Overall Score
  • Performance (50%)7.9
  • Design (20%)7.6
  • Usability (30%)8.3
  • Performance (50%)7.7
  • Design (20%)7.4
  • Usability (30%)8.8

The KOIOS 4-in-1 is our choice for the best budget immersion blender and there’s a good reason for that. The performance is fine for a machine in this segment. With a mid-range motor, this blender is moderate at preparing hot soup, frozen fruit smoothies, and mayonnaise. Its whipping capability is also very impressive thanks to the included whisk attachment.

Our comparison showed the Chefman Cordless to have plenty of redeeming virtues as well. We particularly liked its smoothie-making performance, which is ranked among the tops. In the remaining tests, it shared roughly the same performance, except for beating eggs. 

For overall build, the KOIOS 4-in-1 has been developed with a lot of stiff plastic. The Chefman Cordless feels a bit plasticky in areas, too, but it at least has the look of quality and luxury.

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.
  • The lock function helps prevent accidental operation, reducing the likelihood of personal injury. 
  • It feels like a fancy blender.
  • Multiple speed options allow for a wide range of tasks. 
  • It is capable of pulverizing frozen fruit and making mayonnaise.
  • Colored LED ring indicates the battery’s status accurately.
  • All the buttons are easy to control.
  • An included cookware guard keeps pots and pans scratch-free.
  • 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.
  • It is unable to whip eggs due to the lack of a whisk attachment

Key Specs

Dimension
H15.3 x W2.1 inches
H16.4 x W2.3 inches
Weight
3.4 lbs (1.5 kg)
1.4 lbs
Number of speeds
13
N/A
Pulse/Turbo option
Yes
No
Min speed
11,500 RPM
10,500 RPM
Max speed
14,480 RPM
14,333 RPM

Where to Buy?

Price at publication
$39.98
$55.97

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Analysis and Test Results

Performance

Overall Performance Scoring
7.9
7.7

Puree Soup

7.5
7.0
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.
The Chefman Cordless Immersion Blender Hot Soup Purée Test
Scooping a spoon of pureéd soup from its full batch in a plastic beaker made by the Chefman battery-powered immersion blender.
A batch of soup pureéd by the Chefman cordless blender is checked for smoothness by being drained through a stainless steel mesh strainer.
Pureeing Time
30 seconds
30 seconds
Result
Slightly Chunky
Smooth
Suction
No
 Slightly

Frozen Smoothie

7.8
9.0
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’s motor body and a smartphone displaying the total blending time (1 minute and 10 seconds).
A plastic beaker containing a batch of green smoothie whose parts are scooped with a stainless steel spoon is between the Chefman’s motor body and a smartphone displaying the total blending time (1 minute and 10 seconds).
The Chefman Cordless Immersion Blender Smoothie Test
After finishing blending, the green smoothie made by the Chefman cordless immersion blender was spread evenly throughout a white paper to check for solid chunks.
Blending Time
1 min 20 secs
1 min 10 secs
Result
Slightly Coarse
Smooth
Suction
No
No

Mayonnaise

9.8
8.8
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
The Chefman Cordless Immersion Blender Mayonnaise Test
Scooping a spoon of mayonnaise from its full batch made by the Chefman cordless stick 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 cordless hand blender.
Emulsifying Time
1 min 10 secs
1 min 30 secs
Result
Velvety
Smooth
Suction
No
No

Almond Milk

7.5
8.5
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
The Chefman Cordless Immersion Blender Almond Milk Test
A white plate of almond pulp produced by the Chefman battery-powered stick blender being between the Chefman’s motor body and a smartphone displaying the total grinding time (55 seconds).
Grinding Time
1 min 10 secs
1 min 10 secs
Result
Fine
Very Fine
Suction
No
Yes

Whipped Egg Whites

7.0
0.0
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 Chefman Cordless Immersion Blender Whipped Egg-Whites Test
Someone is holding a plastic beaker which contains a batch of failed beaten egg-white of the Chefman immersion blender and is between the Chefman’s motor body and a smartphone displaying the total whipping time (2 minutes 2 seconds).
Beating Time
2 min 40 secs
N/A
Result
Stiff
N/A
Suction
No
N/A

Design

Overall Design Scoring
7.6
7.4

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.
An owner manual, USB cord, charger adapter, immersion blending wand with its motor body attached, blade edge guard, blade guard, and paper cartoon box of The Chefman cordless hand blender being side by side on a white table.

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 cordless immersion 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 8.2 inches, and the total length of the unit as 16.4 inches.
Height
15.3" (38.9 cm)
16.4" (41.7 cm)
Width
2.1" (5.3 cm)
2.3" (5.8 cm)
Weight
3.4 lbs (1.5 kg)
1.4 lbs (0.6 kg)
Shaft Length
7.9" (20.1 cm)
8.2" (20.8 cm)

Build Quality

7.5
8.0
The whisk attachment, motor body, and blending shaft of the KOIOS 4-in-1 hand-held blender lying flat on a gray table.
The Chefman’s blending shaft and motor body lying on a white table.

Blades

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 blade assembly featuring two sharp prongs of the Chefman battery-powered blender.
A close-up of the blade assembly featuring two sharp prongs of the Chefman battery-powered blender.
The immersion blending shaft with its blade guard attached of the Chefman cordless blender lying flat on a white table.
A close-up of the Chefman’s blending shaft with its blade guard attached.
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

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 the variable speed control button on the front interface of the Chefman cordless stick blender.
A close-up of the variable speed control button on the front interface of the Chefman cordless stick blender.
A close-up of the safety lock button and the USB port on the rear of the Chefman cordless hand blender.
A close-up of Chefman’s handle which features the safety lock button and USB port on the rear and the power button on the front.
A close-up of the LED charge indicator ring and the variable speed control button of the Chefman cordless blender.
Activation
Press-button & speed dial
Press
Min Speed
11,500 RPM
10,500 RPM
Max Speed
14,480 RPM
14,333 RPM
Presets
No
No
Noise Level
90 dB
72 dB
Digital Display
No
No
Pulse Mode
Yes
No

Accessories

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

Main Jar

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

Usability

Overall Usability Scoring
8.3
8.8

Blade Assembly

8.5
9.5
The KOIOS Blade Assembly

Handling

8.0
9.0
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 immersion handle and at the same time pressing its variable speed control button, with one hand.

Cleanability

8.5
8.0

Easeof Use

8.3
8.8

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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.

Headshot of Lap Vo
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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