Chef's Choice 4643 vs. PriorityChef Manual Knife Sharpener Comparison

Overall Verdict

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The PriorityChef 2-stage sharpener is a better manual sharpener than most, and it’s an easy pick over the Chef's Choice 4643.

The PriorityChef features a basic, function-oriented design, while the Chef's Choice’s design offers both stability and great comfort. Both sharpeners are sturdy, but the latter is more robust and has a much better fit and finish.

Instead of the blades and rods usually seen on other manual sharpeners, these two employ abrasive wheels, which remove considerably less knife material. However, the ones on the PriorityChef sharpened much faster and more effectively, while those on the Chef’s Choice didn’t seem to hit the knife’s edge at the right angle and delivered rather subpar results.

Pros & Cons

Works with 20° and 15° edges
Compatible with serrated blades
Grippy handle
Neat, ergonomic overall design

Modest height, low center of gravity
Full, flat base
Gimmick-free design
Great edge retention

Expensive price
Awkward slot layout

Cheap base pad
Small slot openings

Key Specs

Stages

Scissor sharpener

Abrasives

Diamond discs

Diamond

Grit size

Coarse, Fine

Coarse, Fin

Dimensions

L9.3 x W2.0 x H2.8 inches

L7.9 x W2.4 x H2.6 inches

Where to Buy

Price at publication

$51.51

$22.07

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Analysis and Test Results

Performance

Overall Performance Scoring

4.3

8.7

Sharpening Time to Cut a Lemon

1.0

8.8

Sharpening Time

4 minutes

1 minute 15 seconds

Cutting Feel

Slightly heavy

Swift and smooth

Material Retention

7.0

A bowl containing metal sharpening residue next to the base of the Chef's Choice AngleSelect sharpener

The coarse slot on the Priority Chef sharpener, with metal dust and part the diamond coated abrasive disc shown

Sharpening Time

1 minute

Maximum Sharpness Achieved

6.0

8.0

Sharpening Time

6 minutes

Sharpness Level

7 (Ripe tomatoes, 1 swipe)

8 (chicken breast with skin, 1 swipe)

Edge Smoothness

5.2

7.5

Close up view of the knife blade and edge after sharpening with the Chef's Choice AngleSelect

Close up view in vignette of the knife blade and knife edge after sharpening with the Priority Chef diamond knife sharpener

Design

Overall Design Scoring

9.3

7.8

In the Box

The Chef’s Choice manual knife sharpener next to its plastic case

The Priority Chef diamond sharpener on its package box next to the instruction leaflet

Dimensions

Length

9.3" (23.6 cm)

7.9" (20.1 cm)

Width

2.0" (5.1 cm)

2.4" (6.1 cm)

Height

2.8" (7.1 cm)

2.6" (6.6 cm)

Weight

6.6 oz (187 g)

8.3 oz (234 g)

Build Quality

9.0

7.9

The Chef’s Choice 4643 sharpener disassembled on a cutting board, with a lemon slice

The Chef’s Choice 4643 sharpener disassembled on a cutting board

Working Section

Levels of Sharpening

Coarse, Fine

Sharpen, Hone

Abrasive

Diamond-coated disks

Diamond-coated coarse disc, ceramic honing disc

Mechanism

Pull through

Sharpening Angle

15° & 20°

17 degrees

Base

The underneath of the Chef's Choice sharpener

One of the feet underneath the Chef's Choice sharpener

Material

Synthetic rubber

Stainless steel

Feet Type

Slip-proof sole (x 4)

Sponge pad

Grip

7.5

A hand holding the Chef’s Choice manual knife sharpener

The grip of the Priority Chef and part of its base

Material

Rubber

Stainless steel

Usability

Overall Usability Scoring

8.4

8.2

Slot Arrangement

7.0

The Chef’s Choice 4643 manual knife sharpener viewed from the side

The working section on the Priority Chef, with 2 abrasive slots named Coarse and Fine supported by a black frame

Insertion

8.5

7.0

Close up view of the Chef’s Choice sharpener’s sharpening slots 1, 2, and 3

The working section on the Chef's Choice, with 3 slots featuring diamond-coated abrasive discs

Top view of a kitchen knife being sharpened using the Priority Chef, which is held by a hand

Pulling Through

8.5

One of the abrasive slots on the Chef’s Choice 4643 with cutting marks on it

A kitchen knife being sharpened with the Priority Chef, and the two hands that hold the knife and the sharpener

Stability on a Clean Surface

9.5

8.0

2 hands holding and sharpening a kitchen knife with the Chef's Choice sharpener

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

Stability on a Wet and Dirty Surface

7.0

2 hands holding and sharpening a kitchen knife with the Chef's Choice on a salt-sprinkled countertop

A kitchen knife being sharpened with the Priority Chef on a countertop sprinkled 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.