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

Chef's Choice 4643 vs. PriorityChef 2-stage manual sharpener comparison. Check how they stack up in speed, effectiveness, and more.

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


Price at publication
Scissor sharpener
Diamond discsDiamond
Grit size
Coarse, FineCoarse, Fin
L9.3 x W2.0 x H2.8 inchesL7.9 x W2.4 x H2.6 inches


Build Quality
Overall Design Scoring

This is the aspect where the Chef’s Choice 4643 really lives up to the brand’s reputation. The sharpener is well-built, ergonomic, and a delight to work with.

There’s not much to write home about the Priority Chef’s construction and design. It’s simple and functional, and we love that it has a sturdy working section, a full, flat base, and low center of gravity. 

The biggest shortcoming seems to be the low-quality pad under the base. We’d also prefer something with more grip, though the existing one doesn’t ruin the experience.


Slot Arrangement
Pulling Through
Stability on Clean Surface
Stability on a Wet and Dirty Surface
Overall Usability Scoring

The Chef’s Choice 4643 is one of the safest and most comfortable sharpeners to use. Just make sure you do not sharpen in the wrong slot.

With a straightforward design and slot arrangement, the learning curve is very mild with the Priority Chef. Its low center of gravity and wide, flat base offers good balance and stability. 

However, its narrow slot openings might be a bit challenging to work with. And the stainless steel grip may not be so ideal if your hands are sweaty or oily.


Sharpening Time to Cut a Lemon
Maximum Sharpness Achieved
Edge Smoothness
Material Retention
Overall Performance Scoring

The Chef’s Choice 4643 gave a subpar performance both in speed and sharpness level. It did not shave off too much steel, but it did not really do anything to the knife’s primary edge either.

The Priority Chef sharpened blades quickly while creating a decent edge and shaving off very little material from our test knife. Our test knife came out as keen as when brand-new. The device is undoubtedly one of the top performers among the ones we’ve tested, and a very well-rounded one.

Overall Scores

Ease of Use
Overall Scoring

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


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.

Behind the Comparison

Headshot of Anh Ngo
Anh NgoReviewer

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.

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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