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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.

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


Price at publication
H15.3 x W2.1 inchesH14.6 x W2.5 inche
3.4 lbs (1.5 kg)1.5 pounds
Number of speeds
Pulse/Turbo option
Min speed
11,500 RPM10,479 RPM
Max speed
14,480 RPM13,211 RPM
Max noise
90 dB72 dB
Dishwasher-safe wand
YesThree spiralizing blades, a spiralizer, a whisk attachment, and a food processor attachment
A whisk attachment, a food processor attachment, and a 24-ounce blending containerYes


Blending Shaft
Build Quality
Power Cord
Overall Design Scoring

Nothing is particularly unique in the KOIOS 4-in-1’s design, but common features like the stainless steel blades and control buttons are built well enough to make the blender itself stand out.

The Chefman 6-in-1 has a hard plastic body, giving it a light, balanced weight. All the parts are designed well for the price, but they don't look really opulent. They have much in common with other blenders in this price range, so nothing in particular makes this one stand out.


Ease of Use
Blade Assembly
Overall Usability Scoring

Despite utilizing the same key design features as other low-range blenders such as the Muller Ultra-Stick, the KOIOS 4-in-1 manages to provide a better blending experience.

The balanced weight and simple controls make this blender a breeze to use, and its ergonomically-designed handle means that it’ll fit comfortably in your palm. Sometimes it’s difficult to maneuver, though, since it can create quite a bit of suction at the bottom of the container.


Hot Soup Purée
Frozen Fruit Smoothie
Almond Milk
Whipped Egg-Whites
Overall Performance Scoring

The KOIOS 4-in-1 wasn’t designed for powerful performance, but it passed all of our tests without much difficulty. As you might assume, a low-range hand blender won’t churn out velvety results, but all the blends were definitely better than we expected.

The Chefman 6-in-1 worked great for beating eggs and emulsifying mayonnaise. We wish we could say the same when it came to preparing frozen fruit smoothies, puréeing leafy greens, and grinding nuts; it was very mediocre in those tests. For a broader spectrum of blending tasks, we recommend considering other higher-powered blenders.

Overall Scores

Overall Scoring

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.


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.

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 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.

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.

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