Best String Trimmers

Review & Comparison, Last Update August 3, 2019
Do you need to cut grass or weeds around the house, in the yard or garden? Then you surely need a string trimmer! We have picked 5 best string trimmers so that you can make the right choice. ...Read more ...Read less
BEST 2019
PROS
CONS
OUR VERDICT
Operation
Usability
Size and Weight
Warranty
 
PROS
Brushless electric motor ensures the maximum efficiency and torque. Removable 20V Lithium-ion battery provides up to 45 minutes of continuous operation. Dual line (0.08-inch) with a bump switch.
CONS
The guard is rather small, though it's good for maneuverability.
OUR VERDICT

The DeWalt DCST920P1 is a high-performing and maneuverable tool able to cut tall and thick grass with effortless ease. Plus, it doesn't make much noise and almost does not vibrate, making its use very convenient.

detailed parameters
Operation

Electric cordless

Usability
2-speed controls on the main handle, Auxiliary handle for extra comfort
Size and Weight
67.8 inches long, 8.5 lbs
Warranty
3-year limited warranty, 1-year free service 90 days for commercial purposes or any other income-producing purpose
PROS

Able to perform as an edger, this lawn mower is best for users whose lawns have intricate shapes. What's more, it's fitted with a 40V battery which provides one hour operation; this is more than what you usually get even with some more expensive cordless models.

CONS

Make sure to clean the shaft off the dirt often, otherwise adjusting the length might be tricky.

OUR VERDICT

Like all Black & Decker tools, the LST136W packs a punch and is one of the best deals in terms of price/quality ratio. It will easily cope with the overgrowth while making the job of lawn mowing more enjoyable of you. It's well balanced, lightweight and easy to handle.



detailed parameters
Operation

Electric cordless

Usability

Adjustable handle, Converts into an edger

Size and Weight
43.9 inches long, 6.8 lbs
Warranty

3 years limited

PROS

Without any additional tools, the model turns into an edger in a matter of seconds, letting you form distinct boundaries between the lawn and other elements of your yard. The dual-positioned in-line wheels make the process of edging an absolute cakewalk.

CONS

The service life of the trimmer may shorten in a humid climate. 

OUR VERDICT

We could probably go as far as to call this model the best weed eater on the market since it delivers nothing but new levels of power, precision, and function. Plus, the remarkable number of features will be able to accommodate even the most particular customers.

detailed parameters
Operation

Electric cordless

Usability

PowerCommand® dial, PowerDrive™ transmission, Automatic feed spool, Fast Charger included, Converts into an edger, Ergonomic handle

Size and Weight

46.5 inches long, 6 lbs

Warranty

3 years

PROS

A single charge of the battery will offer you up to half an hour of runtime. The variable speed trigger provides different levels of power depending on the cutting conditions, offering you more speed when you deal with thicker grass or slowing down in order to extend the battery life when that additional speed is not necessary.

CONS

The release button on the battery may jam up from time to time.

OUR VERDICT

The Greenworks 12-Inch 40V Cordless String Trimmer is a great overall model but the kind of power it offers will prove to be a bit of an overkill if you're simply looking for a string trimmer. But if you plan on investing in a few other gardening and landscaping tools, you should definitely give this product a try.

detailed parameters
Operation

Electric cordless

Usability

Variable speed trigger, Adjustable auxiliary handle, Auto-feed head, Battery compatible with more than 25 family tools

Size and Weight

65 inches long, 9.2 lbs

Warranty

4 years (device), 2 years (battery)

PROS

The variable speed throttle control works wonders extending the model's run time and delivering the power necessary for different grass conditions. The adjustable, D-grip handle on the shaft gives you comfortable and smooth swipes. The pivoting cutting head can adjust to just about any sloped terrain for easy trimming.

CONS

The construction isn't entirely ergonomic. 

OUR VERDICT

The WORX WG184 string trimmer is all about making the job fast, efficient, and hassle-free. The model is equally effective with different grass conditions and terrains. You can turn the trimmer into the edger in a snap. Its power advantage is a force to be reckoned with.

detailed parameters
Operation

Electric cordless

Usability

Command Feed™ spool system, Variable speed throttle control, Adjustable, D-grip handle, Pivoting cutting head, Converts into an edger

Size and Weight

65.8 inches long, 8.6 lbs

Warranty

3 years 

DEWALT DCST920P1

Operation

This string trimmer runs on a 20V 5.0Ah Lithium-ion battery which ensures up to 45 minutes of non-stop operation. What this literally means is it poses minimum limitations on you and is perfect for those who have a fairly large garden or lawn that requires trimming. One other advantage to this model being a battery-powered tool is that it entails no regular expenses which are associated with gas trimmers such as buying gas and oil. Furthermore, since it has an electric model, it doesn't emit any harmful emissions which makes it an ideal solution for self-conscious users that worry about the health of our planet. Finally, its cordless design means no annoying cords and cables that always get in the way and impede the operation of the tool.

Review of DEWALT DCST920P1 13-Inch Lithium Ion XR Brushless String Trimmer

Usability

The DEWALT string trimmer has a convenient handle. This garden tool has 2 available speed settings for trimming different grass - from small and thin to quite tall and thick. The common 0.08-inch cutting line is usually made of nylon and that's why it wears off, making trimming nearly inefficient. DEWALT engineers have come up with an idea of a bump feed system to solve this issue. It is incredibly simple: you just need to gently bump the trimmer on the ground to release some more cutting line. However, the line shouldn't be extended beyond 13 inches. The DEWALT string trimmer will help you trim grass even in the most hard-to-reach areas of your yard or garden. But this tool isn't all-powerful - you should avoid trees and shrubs; this weed eater is for grass after all.

DEWALT DCST920P1 13-Inch Lithium Ion XR Brushless String Trimmer in the use

Size and Weight

This string trimmer is rather big - the total length is 67.8 inches and, what is peculiar, you can't adjust the length. It makes this DEWALT weed eater rather safe since the cutting line is far from a user's body. The overall weight of this tool is 8.5 lbs. It is not strange as the unit is made mostly of aluminum and plastic. In fact, the tool is rather lightweight and any person can use it; no need to be a muscular bodybuilder.

Detailed review of DEWALT DCST920P1 13-Inch Lithium Ion XR Brushless String Trimmer

Additional Info

User Manual     Manufacturer


 

Black & Decker LST136W

Operation

This is an electric cordless weed whacker produced by the well-known American brand, Black and Decker. This model has a powerful 40V Li-ion battery that you can remove and charge when it is necessary - the charging takes around 1 hour though you can charge it longer for the best runtime. The electric motor is good - the trimming string rotates at a speed of 8500 RPM and easily cuts grass, thick weeds, and small shrubs. The motor is quiet (since it is electric) and easy-to-operate.

Review of Black & Decker LST136W 13-Inch 40V Max Lithium String Trimmer

Usability

The advantage of this electric cordless string trimmer is the adjustable shaft length - you can make it a bit shorter or use a default (full) length. This is particularly good for short people who feel uncomfortable using a too long weed whacker. Also, there is an LED indication of battery charge and you can control the rotation speed - either more power and smaller runtime or vice versa. Also, the unit easily converts into an edger and cuts weeds along the lanes.

Black & Decker LST136W 13-Inch 40V Max Lithium String Trimmer in the use

Size and Weight

The overall length of the string trimmer is 43.9 inches, so really tall people might feel somewhat uncomfortable using this tool. However, for people of small or medium height, this grass trimmer is nice enough. Also, it is quite lightweight thanks to a small electric motor - just 6.8 lbs. If you need a high-tech money-saving yet efficient grass trimmer - Black and Decker is a truly excellent pick.

Detailed review of Black & Decker LST136W 13-Inch 40V Max Lithium String Trimmer

Additional Info

User Manual     Manufacturer


VIDEO
Review - Black & Decker LST136W 40V Lithium String Trimmer Cordless

What customers say about this product

Size & Weight

Very lightweight and decent balance for me (i'm 6 ft tall) , i feel like it's a bit short for me and I have to lean forward but the light weight makes it easy on my back. Less smell, noise & vibration compared to a gas trimmer.

Features

Easily turns into an edger and does a great job.

Power

The battery charges relatively fast - about on hour. And with that meter, you can see how much more it needs to charge (approximately).

Key Specs

Telescoping shaft allows you to collapse the overall length of the device, which is helpful for storage, or if you are short.
 

WORX WG163

Release the String

The WORX WG163 GT 3.0 is a powerhouse of features that will be able to attract just about any customer who isn't interested in your average, run-of-the-mill product. But despite the number of interesting features, there's one that stands out the most, appropriately named the Command Feed. In layman's terms, the innovative solution offers a spool system that instantly releases the string (also known as the line) the moment you start to run short on the latter. Not only does it make the entire process that much more effective but the solution also helps in terms of extending the service life of the cordless string trimmer.

Speaking of releases, there's also the quick-release lever that will provide the user with the opportunity to quickly adjust the height of the 90-degree tilting shaft. As you would imagine, both of these components will make reaching the seemingly inaccessible areas as simple of a task as it could possibly be. And since we aren't talking about some cheap product here, an ergonomic handle is also there, offering enough comfort to work around those areas without putting too much of a strain on your hands. Though the weed trimmer features about 47 inches in length, the whole thing weighs less than 6 pounds, meaning that we're dealing with one of the lightest options on the market.

Review of WORX WG163 12-Inch GT 3.0 20V Cordless Grass Trimmer

An Edger as Well

Now, before mentioning a few other features, we would like to point out the fact that the WORX WG163 GT 3.0 isn't just a string trimmer. Without the help of any additional tools, the model turns into an edger in a matter of seconds, offering you the ability to form distinct boundaries between the lawn and other elements of your yard. The dual-positioned in-line wheels that the manufacturers made sure to implement into their product will make the process of edging an absolute cakewalk.

Other than that, the model also features 100% automatic single-line feed, meaning that you won't have to deal with the usual issue of bumping to extend the line. Whether you're trimming, edging, or mowing, the handle offers 7 locking adjustments, all of which provide you with nothing but comfort by adapting to the landscape.

Naturally, you'd prefer to trim the grass in your lawn without damaging the plants and vegetables, so the people at Worx also didn't forget to add an adjustable spacer guard. Aside from protecting everything but grass from the wrath of this machine, the component works overtime by acting as the edger guide. And even though a single 20V MaxLithium battery offers enough power to extend the runtime, the second one that comes with the package is not going to hurt either. When one of them runs out of steam, simply put another one in and keep on trimming.

In conclusion, we could probably go as far as to call this model the best weed eater on the market since it delivers nothing but new levels of power, precision, and function. Plus, the remarkable number of features will be able to accommodate even the most particular customers.

WORX WG163 12-Inch GT 3.0 20V Cordless Grass Trimmer in the use

Additional Info

    Manufacturer


 

GreenWorks 2101602

One Battery to Rule Them All

Right off the bat, the Greenworks 12-Inch 40V Cordless String Trimmer is probably not the best option for people who are looking strictly for a string trimmer. It isn't that the model won't be able to cut it (speaking both literally and figuratively), it's that the 40V battery system will prove to be a bit of an overkill, with 2 times the power of your standard trimmer battery. No, what makes this battery system special is that both its power and the design will be able to accommodate up to 25 different tools from the very same company, so you will be able to save a long of money in the long run if you intend on buying a few landscaping or gardening tools a bit further down the road.

With so much power under the hood, it goes without saying that what we have here isn't the lightest option on the market. Though given the battery's capabilities and 65 inches in length, the fact that the whole thing weighs less than 10 pounds is nothing short of impressive. But what the cordless string trimmer in general and the battery in particular lacks in elegance, if you will, it more than makes up for that with power. A single charge of the battery will offer you up to half an hour of runtime, which is twice more than what your standard trimmer is capable of delivering. Besides, it takes the battery no more than an hour to recharge, so you won't be wasting too much time on that either.

Review of GreenWorks 2101602 12-Inch 40V Cordless String Trimmer, 2.0 AH Battery Included

Variable Trigger Speed

As for some of the more technical characteristics, we would like to direct your attention towards a couple of those that we believe to be the most interesting or important. First things first, we're dealing with a dual-line spool system. A dual-line head trims a lot faster than the single-line models since it cuts twice as much weed with each revolution. The line feed is automatic, meaning that it only releases more line (string) when it is necessary. That way, there's less of a chance that you will break your weed trimmer by bumping it into the ground. Plus, it will improve your performance just as well as it'll prolong the service life of the product.

Finally, we would be remiss not to mention the variable trigger speed. Depending on the cutting conditions, it provides a different level of power, offering you more speed when you deal with thicker grass or slowing down in order to extend the battery life when that additional speed is not necessary. Add to that the 12-inch cutting path and rest assured knowing that you'll be able to trim your entire lawn in no time at all.

To rephrase our earlier point, the Greenworks 12-Inch 40V Cordless String Trimmer is a great overall model but the kind of power it offers will prove to be a bit of an overkill if you're simply looking for a string trimmer. But if you plan on investing in a few other gardening and landscaping tools, you should definitely give this trimmer a try.

GreenWorks 2101602 12-Inch 40V Cordless String Trimmer, 2.0 AH Battery Included in the use

Additional Info

User Manual     Manufacturer


 

WORX WG184

Command the Feed

The WORX WG184 isn't necessarily cheap but the model is able to deliver precise and professional results every single time and that's worth paying for. The trimmer is powerful, effective, convenient, and overall practical. Its power advantage comes from the dual 20V power module batteries that are able to offer 40V of power and performance.

We're talking about enough juice here to trim just about a 1/2-acre yard. There's very little chance you've more land than that (kudos to you if you do though). That being said, you can pop the batteries into the dual charger or swap the batteries and you are good to go.

Now, let's address the convenience and practicality aspects. A good place to start would be the company's very own Command Feed™ spool system. At the push of the little red button, the system adds 1/4" of line. This way, there's no bumping and you don't have to wait for the usual automatic line feed.

A quality trimmer is almost always an edger too and the model here follows the very same principle. All you have to do is push the orange button on the shaft and rotate the head. Et voilà, you've been able to turn the timmer into an in-line wheeled edger. The switch system is about as easy and effortless as these things get.

Review of WORX WG184 13-Icnh 40V Cordless String Trimmer/Edger

Power Advantage

There are many smaller design solutions here that make the product such an attractive option in the first place. We can and definitely will highlight the variable speed throttle control that works wonders extending the model's run time and delivering the power necessary for different grass conditions.

The professional-grade trimmer line deserves a little recognition too considering the professionally landscaped results that it is able to deliver under various conditions.

The adjustable, D-grip handle on the shaft gives you comfortable and smooth swipes. That being said, the construction isn't entirely ergonomic and there's a good chance your wrist might start hurting after some time with the tool.

We aren't saying that the model isn't comfortable though. The pivoting cutting head, for example, can adjust to just about any sloped terrain for easy trimming.

Other than that, there isn't much to add here except for the trimmer's dimensions and weight. Measuring 65.8 inches long, it is neither too short nor too long and the same sentiment can be extended towards its 8.6 pounds in the weight department.

Simply put, the WORX WG184 string trimmer is all about making the job fast, efficient, and hassle-free. The model is equally effective with different grass conditions and terrains. You can turn the trimmer into the edger in a snap. Its power advantage is a force to be reckoned with.

WORX WG184 13-Icnh 40V Cordless String Trimmer/Edger in the use

Additional Info

User Manual     Manufacturer


 

What Is a String Trimmer?

A string trimmer has many names - this tool is also called a weed whacker, weed eater, grass trimmer, and so on. As the very name indicates, this tool is used to cut grass and weeds, just like a lawnmower, but unlike them, weed whackers allow you to handle steep and hard-to-reach places. Also, they are much cheaper than conventional lawnmowers and require less storage space. A weed eater has a long shaft with a cutting head at the end. Of course, there is an engine, a handle, and a shoulder strap to carry a string trimmer. The idea here isn't just to minimize the money you spend on a device with a singular and straightforward purpose but also to allow you occasional trimming without whipping out an often huge lawnmower.

While you're shopping for garden equipment we'd like to offer you to take a look at other tools that may come in handy in various situations such as gas chainsaws, edgers, and lawn mowers.

Best String Trimmers

What Features to Compare

There are many string trimmer reviews on the Internet but making the right choice is still a major problem for a common customer. Some reviews provide too much unnecessary information and useless details. That is why we have done our best to make our weed eater review clear and informative. 

First of all, you need to decide on the operation. Weed eaters can have different engines - there are gas-powered weed eaters which yield plenty of power but require the use of gas and oil and there are electric string trimmers that won't be as strong but will provide you with more flexibility and safety during application. The latter can further be divided into corded models that work from an outlet and cordless ones powered by batteries. If you have a small backyard you may benefit from buying a corded string trimmer, should it come with a long enough cord, or you may opt for a cordless grass trimmer if what you need is maximum flexibility. The advantage to cordless trimmers is that many of them come with the kind of batteries that can be used on other tools produced by the same manufacturer, making them a sensible solution for those who already own some collection of garden tools. The power yield of an electric string trimmer varies in the range of 175 and 1400 Watts and the tool typically requires around 10-15 min breaks between working cycles to prevent its motor from overheating.

The next feature to consider it the usability - a grass trimmer should feel comfortable in your hands so that you don't get tired too quickly while running it. To select a suitable model, make sure to consider what convenience features it offers. Many string trimmers feature an adjustable handle and a strap allowing the user to hold it comfortably. Some of them may also have an adjustable shaft which will enable you to change its working height depending on the type of cutting task you've got at hand. Many manufacturers supply their tools with additional attachments and accessories that expand functionality of the tools making them suitable for other jobs besides cutting grass. All of these are those extras that contribute to the usability of a grass trimmer and make the choice less tricky.

Last but not least, you should consider the size and the weight of a weed whacker. Unless you're a bodybuilder looking to grow your arm muscles, it's best to go for a smaller and more lightweight model. Also, you should consider the length of the shaft; despite many of them can be adjusted, it's still important to learn the original working height of the tool in order to estimate how much adjustment can be done.

Sources:

1. String trimmer, Wikipedia. September 9, 2016.

2. John Kelsey Choosing and Using String Trimmers, This Old House.

3. String Trimmer Buying Guide, Consumer Reports. March 2016.

4. Chris Barnes Whipper snipper buying guide, Choice. August 28, 2015.

5. Carl Laron Weed Eater Buying Guide, ConsumerSearch. April 12, 2016.

6. Katina Lewis How to Buy and Choose Weed Eaters, DoItYourself.com.

7. String Trimmer Buying Guide, Lowe's.

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