Amesser A-65 vs Longzon 4-stage: A Side-by-Side Comparison

Overall Verdict

Ranking by

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The Amesser A-65 and the Longzon 4-stage sharpeners are both of a decent size and solidly constructed. Both also sport a tapered base which slightly affects their ability to keep their balance during use.

The Amesser did a little better in our speed and sharpness tests, though arguably only because the Longzon was below average. On the other hand, the Longzon removed far less steel and left a much smoother and more even edge.

All in all, the Amesser is the slightly better choice. If you prefer the design of the Longzon but want better performance, check out its identical twin: the Mueller KS-4ST.

Pros & Cons

Affordable
Instinctive and easy to use
Well-built with a solid design
Grippy and comfortable handle
Safety glove included

Sleek design
Substantial, accommodative size
Fine, smooth knife edge
Inclusion of protective gloves
Slot for scissors

Tapered base
High center of gravity

Tall base
Slow sharpening
Ineffective slot layout

Key Specs

Stages

Scissor sharpene

Yes

Abrasives

Diamond, tungsten carbide, ceramic

Grit size

Coarse, Medium, Fine

Dimensions

L7.9 x W1.9 x H2.9 inches

L9.3 x W1.8 x H3.1 inches

Where to Buy

Price at publication

$16.60

$13.30

Check Price on Amazon

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Analysis and Test Results

Performance

Overall Performance Scoring

6.3

5.6

Sharpening Time to Cut a Lemon

5.2

1.0

Sharpening Time

2 minutes

3 minutes 10 seconds

Cutting Feel

Swift and smooth

Material Retention

6.0

9.0

Metal residue on an abrasive slot on the Amesser handheld knife sharpener

A bowl containing metal sharpening residue next to the base of the Amesser A-65 manual 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

Target Sharpness

Maximum Sharpness Achieved

7.0

6.0

Sharpening Time

6 minutes

Sharpness Level

8 - (Chicken breast, two swipes)

7 (ripe tomatoes)

Edge Smoothness

7.7

9.0

Close up view in vignette of the knife blade and edge after sharpening with the Amesser A-65 knife sharpener

Design

Overall Design Scoring

9.3

9.1

In the Box

The Amesser sharpener next to its package box, a glove, and promotional leaflets

The Longzon knife sharpener lying next to its package box, instruction leaflet, and two gloves

Dimensions

Length

7.9" (20.1 cm)

9.3" (23.6 cm)

Width

1.9" (4.8 cm)

1.8" (4.6 cm)

Height

2.9" (7.4 cm)

3.1" (7.9 cm)

Weight

6.4 oz (183 g)

8.7 oz (246 g)

Build Quality

9.2

9.1

The Amesser’s working section, with the abrasives detached from the base

The base of the Amesser, when the working section has been detached

The Amesser A-65’s abrasive section as detached from the base

The Longzon sharpener standing on a surface

Working Section

Levels of Sharpening

Prepare, Sharpen, Polish

Sharpen, Hone, Polish

Abrasive

Diamond-coated rods, tungsten steel blades, ceramic rods

Tungsten carbide blades, diamond rods, ceramic rods

Mechanism

Pull-through

Pull through

Sharpening Angle

20°

20 degrees

Base

The Amesser A-65 manual sharpener on a salt-sprinkled surface, 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

ABS plastic

ABS

Feet Type

Non-slip rubber base

EVA feet

Grip

9.5

9.0

A hand gripping on the Amesser A-65 manual sharpener

Material

ABS plastic

ABS, TPR

Usability

Overall Usability Scoring

9.1

8.2

Slot Arrangement

7.0

The working section on the Amesser A-65, with 3 slots featuring diamond rods, tungsten carbide blades, ceramic rods

The working section on the Longzon handheld sharpener, with 1 slot for scissors and slots 2, 3, 4 for knives

Insertion

9.0

Top view of a knife being sharpened with the Amesser A-65, 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

9.5

8.0

A hand holding the Amesser knife sharpener and sharpening a kitchen knife with it

A kitchen knife being sharpened with the Longzon, and the 2 hands that hold the knife and the sharpener

Stability on a Clean Surface

9.0

8.5

Top view of a knife being sharpened with the Amesser 3-slot knife sharpener, with the user’s two hands visible

A hand holding the Longzon on a kitchen countertop and sharpening a knife with it.

Stability on a Wet and Dirty Surface

7.5

8.0

Two hands holding and sharpening a kitchen knife with the Amesser 3-slot knife sharpener on a salt-sprinkled countertop

A kitchen knife being sharpened with the Longzon on a countertop with salt particles

Behind the Comparison

Anh NgoSenior Editorial Director

Anh Ngo is a writer with 9 years experience at different media outlets, covering from public news and events to product testing and analysis. At HealthyKitchen101, she works across different departments, communicating closely with its network of writers, editors, and health, tech, and search engine experts to provide a meaningful and pleasant reading experience for visitors.

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.

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.