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

The Amesser A-65 sharpens more effectively than the Longzon 4-stage, but the edge it produces is inferior. Read our detailed comparison.

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

Specifications

Price at publication
$16.60$13.30
Stages
33
Scissor sharpene
NoYes
Abrasives
Diamond, tungsten carbide, ceramicDiamond, tungsten carbide, ceramic
Grit size
Coarse, Medium, FineCoarse, Medium, Fine
Dimensions
L7.9 x W1.9 x H2.9 inchesL9.3 x W1.8 x H3.1 inches

Design

Build Quality
Grip
Overall Design Scoring

While the Amesser A-65 isn’t among our best performing sharpeners, it’s certainly one of the best built. The unit feels solid and sturdy from start to finish. The parts fit well together and the grip is only half a point shy of the perfect mark.

The Longzon looks identical to the Mueller handheld sharpener and has a much better build and design than its affordable price suggests. There’s no shoddy parts or gimmicky details — everything fits together securely and seamlessly to serve its purpose.

We also like the device’s substantial size which allows for easy sharpening of larger kitchen knives. The inclusion of the gloves is nice, though we didn’t feel the need to use them.

Usability

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

The Amesser A-65 is straightforward to use since it doesn’t have any quirky features to be wary of. With the sharpening order progressing in a natural flow, you should have no trouble following the steps. And while the result didn’t turn out particularly well for the slippery countertop test, it represented more of a slight drawback that many people could see coming rather than a serious dealbreaker.

The Longzon is straightforward, and there are visual cues on the device if you’re not sure how to use it at first glance. Its large grip and wide working section make sharpening natural and effortless. Though we think a more modest height would make it safer to use, its stability is well above average.

Performance

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

The Amesser A-65 will certainly make a dull edge keener, though admittedly not to a remarkable level, and leave a nice, smooth edge. On the other hand, it does shear off more metal from the blade than you would expect given the achieved sharpness.

The Longzon 4-stage knife sharpener creates one of the finest edges we’ve seen with a device of this type. Unfortunately, the edge’s functionality doesn’t match up with its aesthetics. It only became keen after more than 3 minutes of sharpening, and a prolonged sharpening time didn’t get it much further on the sharpness scale either.

Overall Scores

Performance
Design
Ease of Use
Overall Scoring

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

Conclusion

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.

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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