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Zwilling 4-Stage vs. Longzon 4-Stage Manual Sharpener Side-by-Side Comparison

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Zwilling 4-Stage vs. Longzon 4-Stage Manual Sharpener: Great Build Quality, Mediocre Capacity

Overall Verdict

The Zwilling 4-stage and the Longzon 4-stage sharpeners are well-built, robust sharpening devices, but that didn’t help them score well in our sharpening tests.

The Zwilling 4-stage has a solid body that is certainly made of high quality materials. Unfortunately, its fancy design features were not very useful in practice—its thin and narrow base did not help with balance, while the supposedly ergonomic handle proved awkward to grasp. The sharpener was also one of the slowest to show results. 

The Longzon offered better balance and ease of use during sharpening. It was gentle to the knife and created an extremely fine edge. However, the improvement in sharpness was modest compared to other sharpeners. The device took longer to achieve sharpness than most sharpeners as well. 

Between the two, the Longzon is the more acceptable choice. But there are better performers—take a look at our rating tables to find the right one for you.

Ranking by
Showing: 2/2 Items

Pros & Cons

  • Substantial weight
  • Sharpens both Asian and standard knives
  • Strong build, high-quality body material
  • Slot cover 
  • Beautiful design
  • Sleek design
  • Substantial, accommodative size
  • Fine, smooth knife edge
  • Inclusion of protective gloves
  • Slot for scissors
  • Brittle sharpening blades 
  • Anti-slip pad doesn’t fully cover the base
  • Awkward grip
  • Tall base
  • Slow sharpening
  • Ineffective slot layout

Key Specs

Stages
2
3
Scissor sharpener
No
Yes
Abrasives
Ceramic discs
Diamond, tungsten carbide, ceramic
Grit size
Coarse, Fine
Coarse, Medium, Fine
Dimensions
L9.3 x W1.7 x H3.1 inches
L9.3 x W1.8 x H3.1 inches

Where to Buy

Price at publication
$29.53
$13.30

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Analysis and Test Results

Performance

Overall Performance Scoring
4.7
5.6

Sharpening Time to Cut a Lemon

1.0
1.0
Sharpening Time
3 minutes
3 minutes 10 seconds
Cutting Feel
Slightly forced
Swift and smooth

Material Retention

6.0
9.0
Medal dust on an abrasive slot on the Zwilling knife sharpener
Medal dust on an abrasive slot on the Zwilling knife sharpener
A bowl containing metal sharpening residue next to the Zwilling sharpener
Metal residue in the sharpening slots of the Longzon knife sharpener
Metal residue in the sharpening slots of the Longzon knife sharpener
The Longzon household knife sharpener next to a bowl containing metal dust residue
Sharpening Time
1 minute
1 minute
Target Sharpness

Maximum Sharpness Achieved

7.0
6.0
ZWILLING Maximum Sharpness Achieved video
ZWILLING Maximum Sharpness Achieved video 1
Sharpening Time
6 minutes
6 minutes
Sharpness Level
8 - (Chicken breast with skin, 2 swipes)
7 (ripe tomatoes)

Edge Smoothness

7.3
9.0
Close up view in vignette of the knife blade and edge after sharpening with the Zwilling
Longzon Knife Sharpener Edge Smoothness

Design

Overall Design Scoring
7.5
9.1

In the Box

The Zwilling Henckels knife sharpener in between its clear plastic case and instruction manual
The Longzon knife sharpener lying next to its package box, instruction leaflet, and two gloves

Dimensions

The Zwilling handheld sharpener with arrows and figures showing its dimensions
The Longzon household sharpener with arrows and figures showing its dimensions.
Length
9.3" (23.6 cm)
9.3" (23.6 cm)
Width
1.7" (4.3 cm)
1.8" (4.6 cm)
Height
3.1" (7.9 cm)
3.1" (7.9 cm)
Weight
11.2 oz (318 g)
8.7 oz (246 g)

Build Quality

7.8
9.1
The Zwilling Henckels 4-stage knife sharpener standing on a surface
The Longzon sharpener standing on a surface

Working Section

The working section of the Zwilling with 4 abrasive slots on a frame and its clear cover
Longzon Knife Sharpener Working Section
Levels of Sharpening
Sharpen, Polish
Sharpen, Hone, Polish
Abrasive
Ceramic blades
Tungsten carbide blades, diamond rods, ceramic rods
Mechanism
Pull through
Pull through
Sharpening Angle
15 degrees, 10 degrees
20 degrees

Base

The Zwilling sharpener lying on a surface with its base in full view
The Zwilling sharpener lying on a surface with its base in full view
The Zwilling sharpener’s base and base pad
The Longzon sharpener lying on a surface with its base in full view
The Longzon sharpener lying on a surface with its base in full view
Part of the base of the Longzon manual knife sharpener
Material
Plastic
ABS
Feet Type
EVA pad
EVA feet

Grip

6.5
9.0
The grip of the Zwilling 4-stage knife sharpener
The grip of the Zwilling 4-stage knife sharpener
A hand holding the Zwilling knife sharpener and a hand resting on the table
Longzon Knife Sharpener Grip
Material
ABS, EVA
ABS, TPR

Usability

Overall Usability Scoring
8.2
8.2

Slot Arrangement

10
7.0
The working section on the Zwilling sharpener, with 4 slots featuring Coarse and Fine gits for standard and Asian knives
The working section on the Longzon handheld sharpener, with 1 slot for scissors and slots 2, 3, 4 for knives

Insertion

9.0
9.0
Top view of a knife being sharpened with the Zwilling pro 4 stage sharpener, the sharpener being held in one hand
Top view of a kitchen knife being sharpened using the Longzon with 2 hands holding them

Pulling Through

7.5
8.0
2 hands holding and sharpening a kitchen knife with the Zwilling Henckels 4 stage knife sharpener
A kitchen knife being sharpened with the Longzon, and the 2 hands that hold the knife and the sharpener

Stability on a Clean Surface

7.5
8.5
2 hands holding and sharpening a kitchen knife with the Zwilling knife sharpener on a countertop
A hand holding the Longzon on a kitchen countertop and sharpening a knife with it.

Stability on a Wet and Dirty Surface

6.0
8.0
2 hands holding and sharpening a kitchen knife with the Zwilling 4-stage sharpener on a salt-sprinkled countertop
A kitchen knife being sharpened with the Longzon on a countertop with salt particles