10 Best Knife Sharpeners in 2021

best electric knife sharpener

Tired of your knives getting dull? Want a more cost-effective way to deal with it? Purchasing an electric knife sharpener will help you with that.

A knife is the most used tool in your kitchen. Even the most high-end knives will inevitably get blunt after a few months of constant use. 

Electric knife sharpeners are a quick way to get your knives sharpened with just a touch of a button. Depending on the type of model, the electric sharpeners can sharpen knives of different sizes and blade types.

In this article, we have reviewed the top10 electric knife sharpeners available to help you choose the best option for your usage.

In a Hurry? Check out our Top Picks:

Disclaimer – This article may contain affiliate links, this means that at no cost to you, we may receive a small commission for qualifying purchases.

Best Overall

EdgeKeeper Electric Knife Sharpener

EdgeKeeper Electric Knife Sharpener
  • Two stages of sharpening
  • Easy to clean
  • Non-slip base
  • ETL Approved
  • 120 V output

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Best Budget

Presto 08800 EverSharp Electric Knife Sharpener

Presto 08800 EverSharp Electric Knife Sharpener
  • Ease of use
  • Perfect sharpening angle
  • Two-step sharpening process
  • Sapphirite wheels

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Premium Choice

Chef’sChoice Trizor XV Electric Knife Sharpener

Chef’sChoice Trizor XV Electric Knife Sharpener
  • Diamond abrasives
  • Noise level: 65-75 dB
  • Versatile
  • Durable
  • Limited warranty for three years

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1. EdgeKeeper Electric Knife Sharpener

EdgeKeeper Electric Knife Sharpener

Let’s start the list with our top best overall electric knife sharpener from Edgekeeper. 

This product comes with diamond abrasives that provide excellent strength and speed and also an access panel to remove the filings.

It is only ideal for your fine edge blades, suitable with most American/ European style kitchen knives of stainless or carbon steel. It is advised not to use any other type of knives that don’t fit in the slot, such as the serrated steak knives.

This electric sharpener takes just two stages to get your knife as sharp as any other. There are blades attached that help position the knives at an angle that is ideal for more professional results. Cleaning also comes easy with the removable magnet catching the metal shavings that fall off.

You can sharpen your knife without worrying about the sharpener moving about as it comes with silicone feet to stabilize it. 

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  • Durable
  • High strength
  • High speed


  • Only for fine edge knives

2. Presto 08800 EverSharp Electric Knife Sharpener

Presto 08800 EverSharp Electric Knife Sharpener

Introducing the Presto 08800 EverSharp Electric Knife Sharpener from Presto. With a weight of just 2.95 pounds, this product is one of the best electric knife sharpeners out there.

Not only does it boast a compact and lightweight design, but it is also budget-friendly, so it will go easy on the pocket. This will definitely be a great addition to your kitchen.

The product is user-friendly, so you will not have any problems even if it is your first time sharpening a knife. Still, if you have any doubts, you can always refer to the clear and precise instructions they provide.

The Presto 08800 EverSharp comes with two slots. There will be two stages to sharpen your blunt knives. All you need to do is put it into the slot, angling it right effortlessly.

The model features a wheel made of sapphirite, commonly used by many companies to manufacture knives. This will undoubtedly sharpen almost all types of knives.

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  • Easy to use
  • Two-stage process
  • Quite affordable
  • Fast sharpening


  • Harsh to fragile knives

3. Chef’s Choice Trizor XV Electric Knife Sharpener

Chef’s Choice Trizor XV Electric Knife Sharpener

Chef’s Choice makes some of the most high-quality products available on the market. The Trizor XV Electric Knife Sharpener is one of the best among the best that will deliver the best results.

This knife sharpener has three steps of exclusive sharpening technique, featuring diamond abrasives. Although it cannot sharpen curved knives, it works quite well with straight-edged blades. It provides a proper angle of 15 degrees to your blades.

In regards to its functionality, it features three-step EdgeSelect to ensure the blade is appropriately ground, honed, and polished. This makes sure it only takes a minute to sharpen your blade the first time. To resharpen, it only takes ten seconds; therefore, it is quite convenient.

In addition, the Trizor XV Electric Knife Sharpener from Chef’s Choice offers a warranty of three years.

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  • Provides three-stage sharpening procedure
  • Suitable for straight knives
  • Sharpens fast
  • Easy to use


  • A little on the expensive side
  • Not ideal for curved knives

4. Wusthof Electric Knife Sharpener

Wusthof Electric Knife Sharpener

The Wusthof Electric Knife Sharpener uses the Precision Edge Technology (PEtec), providing perfect precision to sharpen your knives in just three stages. This product comes with an internal vacuum to collect the metal filings.  

The three stages include “refine,” “sharpen,” and “shape.” The shape button in this product allows you to even fix the damaged knives that need repair and provide sharpening as well. The refine button is used to work with the edge weekly, and the sharpen button is for monthly use.

It is very easy and convenient to use. You just need to press and button, and the Wusthof electric knife sharpener will take care of your knife. It maintains the knife at an angle so that it is evenly and perfectly sharpened.

You can use this product with fine edge knives as well as serrated knives. The company provides a warranty for this product for a period of 3 years. 

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  • Can be used for both fine edge and serrated knives 
  • User friendly
  • Precise 
  • High speed


  • Comes with only one single belt

5. Shenzhen Electric Diamond Knife Sharpener

Shenzhen Electric Diamond Knife Sharpener

Next up, we have the Shenzhen Electric Diamond Knife Sharpener, a high-quality yet affordable product you can own. This model is designed to treat stainless steel as well as ceramic blades.

With a two-stage sharpening mechanism, it provides two slots; one to coarse grind and the other to fine grind the blades. These slots also come with a wheel of diamond abrasives and deliver an angle of 18 and 20 degrees.

Furthermore, this knife sharpener has a compact design, and it is quite user-friendly. It is a convenient tool for the home. Also, its wheel can be easily removed; hence you will not have any issues cleaning it after use.

The Shenzhen Electric Diamond Knife Sharpener can treat most blades that are straight-edged. However, it is not suitable to sharpen curved knives.

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  • Suitable for home use
  • Not so pricey
  • Sharpens kitchen blades easily
  • Compact design


  • Not ideal for serrated blades

6. Work Sharp Culinary Kitchen Knife Sharpener

Work Sharp Culinary Kitchen Knife Sharpener

The Work Sharp Culinary Kitchen Knife Sharpener stands out from the rest of the products on this list. Featuring a honing rod that comes separately, you can manually hone the blades to get a fine finish.

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Like most electric knife sharpeners, this model comes with two slots to sharpen electrically. In fact, it actually has three stages of hybrid sharpening techniques.

This product is suitable for sharpening most straight or serrated knives easily in just 90 seconds.

Another unique feature about the Work Sharp Culinary Kitchen Knife Sharpener is that it has a built-in vacuum. This vacuum makes sure any fragments from the sharpening do not dirty the counter. Its angles are also already set, so the sharpener will treat the blades automatically.

On a side note, the Culinary Kitchen Knife Sharpener from Work Sharp was awarded the Innovation Award in the year 2020. This speaks volumes about its great functionality and excellent design.

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  • Sharpens blades in 90 seconds
  • Easy to use
  • Compact
  • Features a separate honing rod


  • Expensive

7. Chef’s Choice 320 Flexhone Strop Professional Compact Electric Knife Sharpener

Chef’s Choice 320 Flexhone Strop Professional Compact Electric Knife Sharpener

Chef’s Choice manufactures many fantastic kitchen tools that mentioning just one does not suffice. The second product in our list from Chef’s Choice is the 320 Flexhone Strop Professional Compact Electric Knife Sharpener. 

This product places your knives at an angle of 20 degrees to give precise sharpening, and you don’t need any guesswork. 

It is compatible with both straight-edge and serrated knives. You can use it to sharpen your filet knives, bread knives, pocket knives, and even hunting knives.

This product features a two-stage functioning that is easy to use. In the first stage, it uses its diamond coated sharpening wheels for more strength and honing. 

In the second stage, the Chef’s Choice 320 uses its polymer disks to strop the edge and polish it for more sharpness. You need to make sure to use serrated knives only in the second stage. The straight-edged knives are suitable for both stages. 

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  • 2-year warranty
  • High speed
  • High strength
  • Removes less metal
  • User friendly


  • On the heavier side: 5 pounds

8. Presto Professional Electric Knife Sharpener

Presto Professional Electric Knife Sharpener

Here we have yet another amazing product from Presto, the Professional Electric Knife Sharpener. This model promises great functionality similar to the 08800 model. However, if you are searching for one with a more controlled whetting process and better versatility, then this product is for you.

With a simple and compact design, this knife sharpener features three steps to sharpen a knife. First step is to coarse grind, the second for precision grinding, and the third to hone the blades.

Also, you do not have to worry about the angling for your knives as the machine provides perfectly angled slots. Simply insert the blade into each slot, and the result will be a sharp-edged, polished finish.

Furthermore, this electric knife sharpener offers three modes depending on the sort of the knife and its thickness. If you have a fillet knife, you can select the thin mode. The medium setting is for kitchen knives or a Santoku knife, while the thick setting is for sporting or hunting blades.

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9. Chef’s Choice 120 Diamond Hone Professional Electric Knife Sharpener

Chef’s Choice 120 Diamond Hone Professional Electric Knife Sharpener

Bagging another spot on our list is the Chef’s Choice 120 Diamond Hone Professional electric knife sharpener. With three stages and its Trizor-Plus system, it provides quick sharpening for both fine-edged as well as serrated edged knives. 

The first stage provides a maximum edge with diamond abrasives and can sharpen even your most damaged and dull knives. The second stage has a finer diamond form for your routine use. Formed with its patented material, you can use the third stage for polishing and stropping.

In just a few seconds, this product sharpens your knife with utmost precision. This product also delivers a knife angle of 20 degrees. It also employs feet-holds that firmly keeps your sharpener in place. 

Chef’s Choice provides a household warranty of 3 years with this product.

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  • Fast and easy to use
  • Durable
  • Long-lasting
  • 3year household warranty


  • Mostly for household use

10. Chef’s Choice 250 Hone Hybrid Electric and Manual Knife Sharpener

Chef’s Choice 250 Hone Hybrid Electric and Manual Knife Sharpener

Being the fourth product from Chef’s Choice, the 250 Hone Hybrid Knife Sharpener is the perfect tool for all the chefs out there.

This machine stands out from the rest of the products on our list because of its two-in-one function. It is a combination of both electric and manual knife sharpening.

The model has three steps of the sharpening mechanism. The first and second steps are to whet your knives electrically. Simultaneously, the third step is for polishing the knife manually to ensure a glossy finish.

This tool uses triple-bevel technology; hence it is incredibly durable. After doing the third step, the technology makes sure the edge of your knife has the shape of an arch.

Overall, this knife sharpener is perfect for serrated blades and effortlessly sharpens the knives.

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  • Features electric and manual whetting
  • Suitable for straight-edged as well as serrated blades
  • Lightweight design
  • Provides diamond abrasives


  • Not ideal for thick-edged blades

Electric Knife Sharpeners Buyer’s Guide:

Buying a knife sharpener may look simple, but once you get into it, with the many features available, you may get more confused. Here below, we have a few points that will make it easier for you. 

Angle Guide

Ranging from 15 to 30 degrees, the angle guide of a sharpener directs you to position your knife without having to guess. If your sharpener has a higher range of degrees, you will be able to sharpen more blades of different shapes and sizes.


You should purchase your knife sharpener by keeping in mind the type of knives you use. Some sharpeners are only used for fine-edged knives, and some are even compatible with serrated knives. Knowing the compatibility of your knife and sharpener is essential.


You would want your tools to last a longer period of time, and knowing the warranty can help you with that. Purchase a product with at least one-year warranty as it provides more reliability and assurance of your product lasting longer.


These are all one-of-a-kind products specially designed for all household and commercial use. Now that we have reached the end of this guide, we hope that you have found the product that caters to your needs.

Written by:

Hi there! My name is Herbert Miller and I´m one of these you could call a real handyman. My hobby is to fix everything whenever it comes to cars or stuff in my garden. I created this website to share my knowledge with all the different tools I have tried through the years.