Do you ever find that you just can’t get the result you want with a traditional knife sharpener? Perhaps it’s the fear of hurting yourself that has stopped you from giving your knives the attention they need. Electric knife sharpeners are a great modern solution for this age-old problem.

Best Electric Knife Sharpener Comparison Table

PRODUCT FEATURES LATEST PRICE
1. THRITOP 3 in 1 Electric Knife Sharpener Tool
  • Retractable cord
  • Two-stage sharpening
  • Non-slip feet
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2. Work Sharp E2 Kitchen Sharpener, DAA
  • Works on all types of knives
  • Compact size
  • Operates on the push of a button
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3. Warsun Electric Knife Sharpener
  • Adjustable blade thickness
  • Cordless
  • Suitable for thick hunting knives
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4. Kitchellence 3-Stage Knife Sharpener
  • Straightens damaged blades
  • Ergonomic handle
  • Cut-resistant glove included
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5. Presto EverSharp Electric Knife Sharpener
  • Two-stage sharpening system
  • Blade guides for the perfect angle
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6. Narcissus Knife Sharpener
  • 15-degree blade for a sharper cut
  • Also sharpens scissors and screwdrivers
  • Sharpens in just 4 strokes
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7. Chef’sChoice 15 Trizor XV EdgeSelect Professional Electric Knife Sharpener
  • Sharpening system featuring diamond abrasives
  • Quickly and easily converts 20-degree knives to an optimal 15-degree edge
  • 3-stage EdgeSelect sharpening
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8. Work Sharp Combo Knife Sharpener
  • Versatile – works on all types of knives
  • Unique 25-degree angled guide
  • Combined sharpening technology
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9. Amesser Knife Sharpener Diamond Wheel
  • Superior sharpening qualities
  • Does both sharpening and honing
  • Safe and easy to use
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10. EdgeKeeper Electric Knife Sharpener
  • Built-in magnet to collect shavings
  • Sharpens at the perfect angle
  • Non-slip feet
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Chefs, hunters, craftsmen, and fishermen are just some of the people that can benefit from having a sharp knife. When looking for the perfect tool, the choice can sometimes be overwhelming. That’s why we’ve put together an electric knife sharpener review to highlight the best products on the market – it’s time to bring your blunt knives life back to life. Check them out below!

Our Best Electric Knife Sharpener Reviews and Comparisons

1. THRITOP 3 in 1 Electric Knife Sharpener Tool

Product Highlights

This Electric Knife Sharpener Tool will not only keep your knives feeling fresh it can be used on scissors and screwdrivers too. There’s nothing better than a multifunctional product. Why just sharpen one thing when you can sharpen everything you own?

Useful for cooks and craftsmen alike, this tool will make your life a lot easier. It has a powerful 40W motor too, meaning it can get to work quickly on all your sharpening needs.

Features

  • Retractable cord
  • Two-stage sharpening
  • Non-slip feet

What We Like About THRITOP 3 in 1 Electric Knife Sharpener Tool

This machine may look small but it’s certainly powerful. It’s three functions are very easy to use and produce impressive results. The scissor sharpener is a particular highlight, making cutting paper feel wonderful after you’ve freshened the edges of your blades up with this tool. This compact machine also makes it easy to stay tidy. When used on a countertop, any dust gathers neatly and can be disposed of without a fuss.

What We Don’t Like About THRITOP 3 in 1 Electric Knife Sharpener Tool

The shape of the sharpening blade means that some larger scissors won’t be compatible. That’s a shame if you are trying to sharpen fabric scissors or kitchen scissors. The sheer power of the tool may also cause problems if you aren’t careful. Its motors work at high speed and it can be possible to damage or even ruin your knives.

PROS

  • Sharpens scissors and screwdrivers as well as knives
  • Easy to use
  • Small and compact

CONS

  • Doesn’t fit all scissors
  • The powerful motor can damage knives

2. Work Sharp E2 Kitchen Sharpener, DAA

Product Highlights

This fully guided sharpener works just by pushing a button. Simple as that! It takes the complexity out of knife sharpening and offers an easy solution for amateur chefs or fishermen.

Despite its simplicity, this tool gives a professional level of sharpness. It works by automating the sharpening of your knives for a perfectly sharpened knife every time. It can be used on serrated knives, pocket knives and scissors too.

Features

  • Works on all types of knives
  • Compact size
  • Operates on the push of a button

What We Like About Work Sharp E2 Kitchen Sharpener, DAA

This model uses abrasive discs instead of an abrasive belt. The result – a smoother and more gentle sharpening. Unlike other electric sharpeners, you are able to sharpen all types of knives, even serrated ones! It’s a compact and simple machine that achieves impressive results.

You can be sure that your knives will stay sharp for a long time after use. It’s intuitive too – the machine will automatically turn off after a blade is completed, so you don’t oversharpen. Also, we love how the power source is neatly tucked away. This allows for easy storage and keeps your kitchen neat and tidy.

What We Don’t Like About Work Sharp E2 Kitchen Sharpener, DAA

The blade only sits at one angle, meaning you are out of luck if you own both western and eastern kitchen knives. It’s perhaps not the best option for knife buffs. It isn’t very customizable and appears simple at times. If you are looking for a more customizable sharpener it’s best to look elsewhere.

The guide for sharpening scissors also falls short. With a tiny opening, it can be tricky to get your scissors in. With bad luck, it can leave your scissors ending up worse than before!

PROS

  • Longevity – comes with replaceable flexible discs
  • Sharpens serrated knives
  • Automatic turn off once knives are sharpened

CONS

  • The scissor function is unreliable
  • The coarse grinding wheel lacks a professional finish

3. Warsun Electric Knife Sharpener

Product Highlights

This cordless sharpener offers an easy two-stage sharpening system that can be used anywhere. Fully rechargeable and compact, this little sharpener offers a lot of options.

It can be used outside the kitchen too. Perfect if you like camping, fishing or adventuring. It has a clever blade thickness selector – that means you can even sharpen a hunting knife with this thing! The guides adjust to optimum sharpening angle, so you can just sit back and relax.

Features

  • Adjustable blade thickness
  • Cordless
  • Suitable for thick hunting knives

What We Like About Warsun Electric Knife Sharpener

It’s super easy to customize your knife sharpening with this model. With the ability to select a unique setting for each knife, you can be sure that the results will be good. There’s a simple indicator light to show whether the device is powered on and whether the gear speed is medium or high. The USB charging is very convenient. The cordless feature means that there is no danger of wires getting in the way!

What We Don’t Like About Warsun Electric Knife Sharpener

Whilst the idea of a cordless device is appealing – this is not the most powerful tool. Its portability means that you have to compromise on great results. The device lacks the strength of some of its competitors, meaning that you may be left disappointed with the results. It’s small and compact but can feel a bit cheap and flimsy compared to others on the market.

PROS

  • USB charger
  • Small and compact

CONS

  • Cordless = low power
  • The plastic design feels cheap

4. Kitchellence 3-Stage Knife Sharpener

Product Highlights

This sharpener uses an incredible three-slot system to produce its finished result. First, it repairs and straightens any damaged blades. Next, it uses tungsten steel to provide a coarse sharpening that restores the blade to a V-shape. It then finishes by applying a stunning polish to your knives!

It’s got a cool ergonomic handle, making it easy to use whether you’re right or left-handed. If that’s not enough, it even comes with a cut-resistant glove for added safety. You can’t say they haven’t thought of everything here!

It comes crafted from solid ABS plastic which makes it strong and durable. This sharpener is certainly designed to last a lifetime. Unlike many others out there, it can even be used on ceramic knives!

Features

  • Straightens damaged blades
  • Ergonomic handle
  • Cut-resistant glove included

What We Like About Kitchellence 3-Stage Knife Sharpener

With its slick design easy to grip handle, there are lots to like about this sharpener. The handle is comfortable and the anti-slip base means that it doesn’t slide around on the countertop. Very important if you ask us!

Oh, and a cut-resistant glove included in the package gives it bonus points too. Nice to know your hands are going to be kept safe from any nasty accidents! We like the careful consideration that’s gone into the design and presentation of this product. It’s made to impress and deliver exceptional results.

What We Don’t Like About Kitchellence 3-Stage Knife Sharpener

This isn’t a machine for someone in a hurry. It’s not that straightforward to use it when you first start out. The process of putting each knife through the 3 stages can be a bit complex. If not done properly it can be hard to achieve smooth results for your knives. Perhaps more suited to someone who really knows what they are doing and has specific requirements. Unlike other more basic sharpeners, it can feel like it’s a lot of effort using this machine.

PROS

  • Strong and durable
  • Leaves knives polished as well as sharpened

CONS

  • A bit complicated to use
  • Can be hard to pull knives through the blade

5. Presto EverSharp Electric Knife Sharpener

Product Highlights

Using rapidly rotating Sapphirite grinding wheels this little machine gives off a professional appearance. It uses a two-stage system: knives are ground and sharpened on one half of the machine, and then refined on the other half. There are blade guides to hold the knife at the ideal sharpening angle, saving you any hassle. It’s suitable for knives made of alloy, carbon, or stainless steel too – making it super versatile.

Features

  • Two-stage sharpening system
  • Blade guides for the perfect angle

What We Like About Presto EverSharp Electric Knife Sharpener

This sharpener is simple to operate and produces impressive results. It takes less than two minutes to see a big difference. It’s practically capable of bringing your knives back to life! After using this sharpener there’s a noticeable difference in cutting fruit and veg. Great for that ‘good as new’ feeling!

What We Don’t Like About Presto EverSharp Electric Knife Sharpener

The grinding wheels are quite coarse and can leave a rough edge. This is a shame as the cutting results are impressive. The end result is something sharp, but not that pretty. The finish is not always as smooth as we would like it to be – perhaps not suited for use on high-quality knives.

PROS

  • Quick and easy to use
  • Impressive results

CONS

  • Coarse grinding wheels
  • Could damage high-quality knives

6. Narcissus Knife Sharpener

Product Highlights

The Narcissus electric knife sharpener is quick and easy to use. It claims that only 4 strokes are needed to achieve the perfect sharpness too. It’s also unique in sharpening at a 15-degree angle, providing a sharper cut than a traditional 20-degree angled edge.

There’s more to this sharpener than you think – There are also slots for scissors and screwdrivers making it the ultimate multifunctional gadget.

Features

  • 15-degree blade for a sharper cut
  • Also sharpens scissors and screwdrivers
  • Sharpens in just 4 strokes

What We Like About Narcissus Knife Sharpener

This sharpener is a perfect size and sits on the tabletop firmly. It produces results really quickly – so more time to enjoy chopping!

Suitable for chefs and huntsmen, this sharpener is reliable and high quality. It even comes with three extra sharpening stones which means you can keep your knives sharp for a long time. It’s easy to replace the stones and keep using the tool for many years. That seems like a good value to us!

What We Don’t Like About Narcissus Knife Sharpener

Despite producing good results, this tool can take longer than expected to use. If you are in a hurry you may want to choose another option. It claims to sharpen blades in just 4 strokes, but it can actually take up to 100 strokes to get a good result. The slow process can be a bit off-putting for anyone looking for a quick fix for their knives. Additionally, the slot for sharpening scissors is positioned at an awkward angle making it hard to use.

PROS

  • Compact size
  • Quick results
  • Extra sharpening stones included

CONS

  • Can take longer to sharpen certain blades
  • Scissor sharpener is difficult to access

7. Chef’sChoice 15 Trizor XV EdgeSelect Professional Electric Knife Sharpener

Product Highlights

Using a unique sharpening system that features diamond abrasives, this machine is razor sharp! It is ideal for converting the traditional 20-degree edges of your household knives too. With this tool, you can upgrade them to high-performance 15-degree edged knives – just like the professionals! The ability to transform your knives this way is completely unique and really makes this product stand out. It’s a cut above the rest when it comes to quality!

Features

  • Sharpening system featuring diamond abrasives
  • Quickly and easily converts 20-degree knives to an optimal 15-degree edge
  • 3-stage EdgeSelect sharpening

What We Like About Chef’sChoice 15 Trizor XV EdgeSelect Professional Electric Knife Sharpener

This machine takes your knives from blunt to razor-sharp in no time at all! If you’re a cook or professional chef who values their cookware like tools, this is the perfect gadget to get super sharp knives very fast. The results are impressive and it works on a range of knives. From a professional kitchen knife to a $1 blade – everything will cut like a dream once you’re done with the Chef’sChoice sharpener.

What We Don’t Like About Chef’sChoice 15 Trizor XV EdgeSelect Professional Electric Knife Sharpener

We didn’t think there could be such a thing – but it’s possible that this sharpener makes knives too sharp! Caution should be taken when using this machine as the results can be serious. If you aren’t careful then there could also be some cosmetic damage to the blades. If you’ve bought some beautiful looking knives, it’s best not to put them near the Chef’s Choice Trizor as you’ll end up ruining the finish on the side of your knife.

PROS

  • Very sharp knives
  • Quick results
  • Angle control

CONS

  • Can damage the appearance of blades
  • Can make knives dangerously sharp

8. Work Sharp Combo Knife Sharpener

Product Highlights

The Work Sharp Combo Knife Sharpener is an all-round solution for many types of knives. Suitable for outdoor knives, pocket knives, kitchen knives, and serrated knives – it really does tick all the boxes!

It works by combining power sharpening technology (flexible abrasive belts) with manual sharpening technology (angle-guided ceramic honing). The result – a fast, easy, and super effective sharpening system.

This sharpener is unique as it uses a precise 25-degree angle guide for both sharpening and honing. It’s very easy to use and produces results fast. An all-round crowd-pleaser in the knife sharpening world!

Features

  • Versatile – works on all types of knives
  • Unique 25-degree angled guide
  • Combined sharpening technology

What We Like About Work Sharp Combo Knife Sharpener

This machine is very simple to use – and we like that. All of your knives can be sorted in one go with this extremely versatile tool. For people who use their knives every day for work, this tool is ideal – run the knife 5 times on each side and it is ready to cut. The combined technology produces great results for practical use.

What We Don’t Like About Work Sharp Combo Knife Sharpener

If you are a knife collector and have expensive knives in your collection, then this might not be for you. The motor is sometimes weak and can leave marks on the blades. Although only a cosmetic concern, we don’t like the fact that our knives come away looking slightly worse for wear.

PROS

  • Easy to use
  • Quick results
  • Works on serrated knives

CONS

  • Can damage the appearance of blades
  • Slow motor

9. Amesser Knife Sharpener Diamond Wheel

Product Highlights

This is a highly professional sharpener! It’s diamond wheels really make it glisten above the rest – you can expect great results from this one. It uses 3-stage sharpening to make sure that you are left with a quality result.

Its design makes it suitable for both left and right-handed people – so no one is left out of the fun! Safety is key with this sharpener. Included with the tool is a cut-proof glove to keep your hands safe. It also comes mounted on a rubber base, meaning that it won’t slip off the countertop and cause any accidents.

Features

  • Superior sharpening qualities
  • Does both sharpening and honing
  • Safe and easy to use

What We Like About Amesser Knife Sharpener Diamond Wheel

Not only does it do the job well, we think this little machine looks beautiful too. Something to have proudly displayed on your kitchen worktop anywhere. The fact that it uses a diamond wheel really stands out for us too – does anyone else get excited by diamonds? Tired and old knives can become as good as new with this sharpener.

If you were planning to throw old knives away, it’s worth thinking twice before you do. This diamond wheel sharpener can really transform something that you thought had no life left. We love the inclusion of a safety glove too. It really helps make you look the part when you are sharpening your knives (and keeps your hand intact too).

What We Don’t Like About Amesser Knife Sharpener Diamond Wheel

This product won’t work on scissors or serrated knives, making it less versatile than some of its competitors. If you are looking for a multi-use product then this one might not be for you. It’s more focused on sharpening traditional knives and geared towards professionals. If you are looking for something more suited to the amateur market then this may not be your ideal product.

PROS

  • Beautiful design
  • Diamond wheel
  • Brings old knives back to life

CONS

  • Not suitable for serrated knives
  • Not suitable for scissors

10. EdgeKeeper Electric Knife Sharpener

Product Highlights

This two-stage sharpener works at speed to sharpen almost any fine edge blade. It’s smart, too, using a clever built-in magnet to collect any mess left over from sharpening.

Safety conscious as well as clever, this sharpener sits on a non-slip mat to avoid any accidents in the kitchen. With customizable angle control, you can be sure that your knife is getting the right treatment and will have brilliant results.

Features

  • Built-in magnet to collect shavings
  • Sharpens at the perfect angle
  • Non-slip feet

What We Like About EdgeKeeper Electric Knife Sharpener

This sharpener looks cute and does what it’s supposed to do! An added bonus that we love is the lack of clearing up we have to do. The genius magnet built into this device collects and metal shavings and gathers them up. It saves a lot of mess and time which we love. The whole thing is very user friendly and easy to use too.

What We Don’t Like About EdgeKeeper Electric Knife Sharpener

The simplicity of the design means it’s probably not suitable for premium knives. Its functions are quite basic and it can even damage knives if you aren’t careful. There is a possibility that your knives can end up bent or even broken with this machine, so beware.

PROS

  • Slick design
  • Magnet collection tool

CONS

  • Can damage knives
  • Quite basic

BUYER’S GUIDE

Of all the knives we’ve looked at in our Electric Knife Sharpener Review – our favorite has to be the THRITOP 3 in 1 Electric Knife Sharpener Tool. With the added bonus of being able to sharpen other bits as well as knives, it really stands out for us. I mean, sharp scissors anyone?

It’s also very practical to use this sharpener. It’s got non-slip feet to keep it still on the work surface and a retractable cord so that it can be packed away neatly. We think it’s the perfect combination of style and function too. It’s small and compact design means that you can use it anywhere – even in small kitchens. We are very impressed by its results!

Final Verdict

An electric knife sharpener is something you might not have realized you need. While there are plenty of traditional ways of getting a sharp blade, sometimes technology gives the most satisfying result. Since all blades dull with use, it’s important to protect the knives you have invested in with the right tools. A knife’s long-term performance depends on how it is looked after. Resharpening is an important part of the TLC your knives need. Don’t go without it!

The quality of your knife will determine how often it needs to be sharpened. Knives made of high-grade steel will hold an edge longer, but even the best quality knives will dull over time.

Did you know that the initial factory edge only lasts for the first few days of use? That means that for more than 99% of a knife’s useful life, its performance depends on how it is resharpened. With today’s marketplace of electric sharpeners, you can do more than replicate the factory edge of your knives. Some machines can make them even better and sharper than when you first bought them!

Things to look out for when buying a sharpener include the following:

  • The angle of the blade
  • The sharpening process
  • Blade compatibility

Different machines work best for different types of blades, so it’s important to take this into account when selecting the most suitable one for your needs. If you are looking to sharpen professional knives then you may want to consider investing in a diamond blade. These provide greater precision when sharpening. These types of tools also look after your blade too – you don’t want to end up damaging an expensive knife in the sharpening process.

For general kitchen knives, there are more basic sharpeners that will do the job. Some are very easy to use and provide good results at the touch of a button. Others take a bit more time to learn how to operate but can be more suitable for specialist knives. If you use your knives for hunting or fishing, for example, there are specific sharpeners suited to wider blades. It’s worth exploring your options to find the perfect electric knife sharpener for you.

FAQ Section:

Can I use a knife sharpener to sharpen knives other than kitchen knives?
This depends on how thick the blades are. For example, a knife sharpener would NOT work with a garden machete or hedge clippers. Sharpeners are designed explicitly for kitchen blades that fit correctly in the sharpener slots. It’s always best to check the manual of any sharpener that you buy to find out exactly what it can do. Many sharpeners are capable of sharpening hunting knives, daggers, Japanese knives and even scissors!

How durable is a knife sharpener? How many years before grinders lose effectiveness?
These machines should last a long time. The grinders can often be replaced so really they should last you forever. To make the most out of your machine it is recommended to take good care of it. Keep the motor clean and always make sure any filings are swept away after use.

It’s important to store your sharpener properly, away from anywhere damp so that the motor doesn’t get damaged. With the right care, you should be able to keep hold of your tool for a long time. Hopefully, your knives will last this long too!

How long does it take to sharpen a knife?
On average it takes around 5 minutes per knife to get a good level of sharpness. This really depends on a number of factors though. It also depends on how quickly you work as this can vary from person to person! If your knife is very blunt it will take much longer. The power of your sharpener also makes a difference – if you are short on time, think about getting a machine that prioritizes speed and efficiency.

Can I use a knife sharpener to sharpen a sword?
It’s not advised, no. You do not want to put a 15-degree edge on a sword! Parrying or binding with another sword will instantly nick or notch your blade if you do. After a few passes, your sword will look like a serrated blade. A sword does not need to be razor-sharp to cut easily and effectively.

Does sharpening knives leave any grit or dust?
Yes – during the process small particles of metal are loosened on the blade. This reshapes the knife and helps it to be sharpened. It’s always advised to use these tools in an area that you can clean up easily. Eye protection is also a good idea as you don’t want to end up with any of these particles in your eyes!

What is the best angle for sharpening a knife?
Most shop-bought knives come at a 20-degrees angle. Some professionals argue that 15-degrees is optimal for getting a very sharp cut. The best tools have the option to sharpen at multiple angles, giving you greater flexibility.