The EGO POWER+ 16-Inch String Trimmer with 56V Battery and Charger is my best overall pick among the best string trimmers because it offers the strongest balance of cutting width, battery convenience, and yard-ready power. The DEWALT 60V DCST972X1 is the premium choice for thicker growth and attachment versatility, while the WORX WG163 makes more sense for smaller yards where low weight and easy edging matter more than raw force. The main tradeoffs are battery platform, cutting swath, weight, line loading, and whether a corded model is acceptable. Shoppers with larger lots should lean toward EGO, Greenworks 60V, or DEWALT; smaller-lawn buyers can save money with WORX, BLACK+DECKER, or Greenworks 40V. Continue reading for the full ranking logic, buyer-type recommendations, and the details that separate similar-looking models.
Key Takeaways
- EGO POWER+ 16-Inch kit sits first because it blends wide cutting, kit completeness, and lower ownership friction better than the tool-only EGO models.
- DEWALT 60V DCST972X1 is the power and attachment pick, but its cost and size make it excessive for light weekly edging.
- WORX WG163 and WG170 beat the bigger models for small-lot convenience, while giving up heavy-weed speed and long-run durability.
- BLACK+DECKER 40V MAX 13-inch kits overlap so closely that I would buy the cheaper bundle unless one includes a stronger battery or better warranty support.
- Greenworks 60V is the strongest middle-ground value; Greenworks 40V is easier to handle but less persuasive for dense growth.
| EGO POWER+ 16-Inch String Trimmer with 56V Battery and Charger |  | Best Overall Cordless Kit | Power Source: Battery powered | Battery: 56V 4.0Ah lithium-ion battery included | Cutting Width: 16 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| WORX 3-in-1 Cordless String Trimmer, Edger, and Mini Mower, 12″, 20V, WG170 |  | Best Multifunction Pick for Small Yards | Power Source: Battery powered | Battery: Two lithium-ion batteries included | Cutting Width: 12 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| BLACK+DECKER 40V MAX 13-inch Cordless String Trimmer Edger Kit |  | Best Fast-Charging Trimmer-Edger | Power Source: Battery powered | Battery: 40V MAX lithium-ion battery included | Cutting Width: 13 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| Black+Decker 40V MAX 13-Inch Cordless String Trimmer and Edger Kit |  | Best Lighter 40V Option | Power Source: Lithium-ion battery | Battery: One 40V MAX battery included | Cutting Width: 13 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| BLACK+DECKER 20V MAX 12 Inch Cordless String Trimmer and Edger with Battery and Charger |  | Best Light-Duty Starter Pick | Power Source: Battery powered | Battery: 20V MAX 2.5Ah battery included | Cutting Width: 12 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| EGO POWER+ 16″ String Trimmer with POWERLOAD Technology, Battery Not Included |  | Best Tool-Only Upgrade | Power Source: Battery powered | Battery Platform: EGO 56V, sold separately | Battery Life: Up to 45 minutes | VIEW LATEST PRICE | See Our Full Breakdown |
| BLACK+DECKER Weed Wacker with Auto Feed, 14-Inch 2-in-1 String Trimmer Lawn Edger, 6.5-Amp Electric |  | Best Corded Value | Power Source: Corded electric | Motor: 6.5 Amp | Cutting Width: 14 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| EGO Power+ String Trimmer, 15-inch Cordless, Battery-Powered with POWERLOAD Technology |  | Best Lightweight EGO Pick | Power Source: Battery powered | Battery Platform: EGO 56V ARC Lithium compatible | Battery Life: Up to 45 minutes | VIEW LATEST PRICE | See Our Full Breakdown |
| Greenworks 60V 16 Inch Brushless Cordless String Trimmer with 2.5Ah Battery & Charger |  | Best Battery-Included Pick for Larger Yards | Power Source: Battery powered | Motor: Brushless 60V | Battery: 2.5Ah included | VIEW LATEST PRICE | See Our Full Breakdown |
| WORX Cordless String Trimmer & Lawn Edger, 12″, 20V, WG163 |  | Best Lightweight Trimmer-Edger | Power Source: Battery powered | Battery Voltage: 20V | Battery Included: Yes, two batteries | VIEW LATEST PRICE | See Our Full Breakdown |
| Greenworks 40V 12-Inch Cordless String Trimmer with 2Ah Battery & Charger |  | Best for Small Yards | Power Source: Battery | Battery Type: Lithium Ion | Battery Included: Yes | VIEW LATEST PRICE | See Our Full Breakdown |
| DEWALT 60V Cordless String Trimmer with Battery & Charger, 17 Inch, Attachment Capable (DCST972X1) |  | Best Heavy-Duty Cordless Upgrade | Power Source: Battery powered | Battery: 1 lithium ion battery included | Cutting Width: 15 inches | VIEW LATEST PRICE | See Our Full Breakdown |
More Details on Our Top Picks
EGO POWER+ 16-Inch String Trimmer with 56V Battery and Charger
I put the EGO POWER+ 16-Inch String Trimmer at the top because it balances reach, runtime, and cutting strength better than the smaller 12- and 13-inch models here. The 16-inch swath covers more ground than the WORX WG170 or BLACK+DECKER 20V MAX, while the 56V 4.0Ah battery gives it a better shot at finishing a full yard without stopping. Compared with the BLACK+DECKER 40V kits, this pick feels more serious for thicker grass thanks to the 0.095-inch line and carbon fiber shaft. The tradeoff is weight and setup: it is more tool than casual users may want, and Powerload line replacement can still feel less simple than basic auto-feed systems for beginners.
Pros:- Long runtime of up to 60 minutes for bigger trimming sessions
- Wide 16-inch cutting path clears more grass per pass
- Carbon fiber telescopic shaft helps tailor fit and reach
- Line IQ and Powerload reduce common line-feed interruptions
Cons:- Heavier than smaller 20V and 40V alternatives
- Line loading may take beginners more time to learn
- More power and size than tiny yards usually need
Best for: Homeowners with medium to larger yards who want one cordless trimmer kit with strong runtime, wider cutting, and fewer mid-job pauses.
Not ideal for: Apartment dwellers or users with only light fence-line cleanup, since the larger battery and 16-inch build may feel like extra weight.
- Power Source:Battery powered
- Battery:56V 4.0Ah lithium-ion battery included
- Cutting Width:16 inches
- Line Diameter:0.095 inch
- Runtime:Up to 60 minutes
- Shaft Material:Carbon fiber
- Weather Resistance:IPX4
- Key Features:Powerload technology, Line IQ, digital two-speed selector
Bottom line: This is my pick for buyers who want cordless power close to gas-style yard coverage without buying a bare-tool kit.
WORX 3-in-1 Cordless String Trimmer, Edger, and Mini Mower, 12″, 20V, WG170
The WORX WG170 earns its spot because it solves a different problem than the EGO POWER+ 16-inch model: it is about flexibility, not brute force. Its 3-in-1 trimmer, edger, and mini mower design makes the most sense for small lawns, townhouse strips, and tidy borders where one light tool is easier than storing several. At 5.5 pounds, it is much easier to manage than the 7.8-pound BLACK+DECKER 40V MAX kit. The tradeoff is capacity. The 12-inch cutting width and 20V platform are less suited to thick overgrowth, and the 5-hour charge time can be annoying if both batteries run down before the yard is done.
Pros:- 3-in-1 design handles trimming, edging, and mini mowing
- Very light 5.5-pound body is easy to maneuver
- Adjustable handle and rotating head help with awkward angles
- Includes two lithium-ion batteries
Cons:- Five-hour charging time can slow longer projects
- Less cutting width than 13- and 16-inch models
- Needs two batteries for full operation
Best for: Townhouse owners and small-yard users who want one lightweight tool for trimming, edging, and quick grass touch-ups.
Not ideal for: Large-lot homeowners with dense weeds or long fence lines, because the 12-inch cut and 20V batteries limit pace and endurance.
- Power Source:Battery powered
- Battery:Two lithium-ion batteries included
- Cutting Width:12 inches
- Speed:7600 RPM
- Weight:5.5 pounds
- Functions:String trimmer, edger, mini mower
- Dimensions:45.1 inches L x 37.4 inches W
- Color:Black and orange
Bottom line: This is the smartest choice here for small yards where versatility and low weight matter more than raw cutting power.
BLACK+DECKER 40V MAX 13-inch Cordless String Trimmer Edger Kit
I like the BLACK+DECKER 40V MAX 13-inch Kit for buyers who want more punch than a 20V trimmer but do not need the wider, heavier EGO POWER+ setup. Its 8500 RPM speed and 13-inch cut place it above the WORX WG170 for tougher grass along beds and walkways. The biggest advantage over the other Black+Decker 40V kit in this batch is the 2-hour fast charger, which matters if weekend yard work happens in stages. Still, this is not the smoothest pick for all-day work. At 7.8 pounds, it is heavier than the 6.4-pound Black+Decker 40V model, and runtime may still fall short for bigger properties.
Pros:- 40V battery offers stronger output than 20V light-duty models
- Fast 2-hour charger shortens downtime
- Converts quickly between trimming and edging
- High 8500 RPM speed helps with denser growth
Cons:- Heavier than several cordless options in this lineup
- Battery life may not cover large properties in one run
- Requires assembly before use
Best for: Homeowners with average suburban yards who want a cordless trimmer-edger that recharges faster between yard-work rounds.
Not ideal for: Users with wrist or shoulder fatigue concerns, since the 7.8-pound weight can feel tiring during longer trimming sessions.
- Power Source:Battery powered
- Battery:40V MAX lithium-ion battery included
- Cutting Width:13 inches
- Speed:Up to 8500 RPM
- Weight:7.8 pounds
- Charging:Fast charger included, about 2 hours
- Dimensions:46.5 inches L x 13.5 inches W x 11 inches H
- Function:Converts from trimmer to edger
Bottom line: This pick fits buyers who want midrange cordless power and quicker charging without moving up to a larger 56V platform.
Black+Decker 40V MAX 13-Inch Cordless String Trimmer and Edger Kit
The Black+Decker 40V MAX 13-Inch Kit is the more approachable 40V choice in this group. It gives buyers the same 13-inch trimming and edging format as the heavier BLACK+DECKER B00I2F51SG, but at 6.4 pounds it should be easier to carry around shrubs, fences, and sloped borders. I would rank it below the EGO POWER+ for demanding yards because it has a smaller cut and less heavy-growth authority, but it is more practical for routine lawn grooming. The automatic line feed helps reduce stops, though it can jam if handled roughly, and the design may not hold up as well under frequent thick-weed work.
Pros:- Lighter than the other Black+Decker 40V kit in this batch
- 13-inch cut gives more reach than compact 12-inch models
- Trimmer-to-edger conversion supports cleaner borders
- Battery charge indicator helps plan remaining work
Cons:- Runtime may fall short on larger yards
- Auto-feed system can jam if the line is not managed well
- Less durable for repeated heavy-duty cutting
Best for: Suburban homeowners who want 40V trimming power in a lighter body for weekly lawn edges and moderate grass control.
Not ideal for: Buyers clearing rough overgrowth or maintaining large properties, since the build and battery are better matched to routine upkeep.
- Power Source:Lithium-ion battery
- Battery:One 40V MAX battery included
- Cutting Width:13 inches
- Weight:6.4 pounds
- Dimensions:40 inches L x 9 inches W
- Function:Cordless string trimmer and edger
- Line Feed:Automatic line feeding
- Color:Orange
Bottom line: This is the 40V pick I would choose for routine yard maintenance when lower weight matters more than maximum cutting force.
BLACK+DECKER 20V MAX 12 Inch Cordless String Trimmer and Edger with Battery and Charger
The BLACK+DECKER 20V MAX 12 Inch is the pick I would steer toward buyers who want simple upkeep, not a yard-work powerhouse. Compared with the EGO POWER+ 16-inch model, it gives up cutting width, battery strength, and thick-grass confidence, but it is easier to justify for small lawns and quick touch-ups. Against the WORX WG170, it is less versatile because it lacks the mini mower role, yet its dual-speed control gives a useful choice between runtime and cutting pace. The PowerDrive transmission helps it feel less underpowered than the battery size suggests. The weak points are predictable: very large yards can outrun the battery, and the dual-speed switch may not feel natural to every beginner.
Pros:- Light-duty cordless setup is easy for beginners to handle
- Dual-speed control balances runtime and cutting pace
- Converts between trimming and edging for basic lawn borders
- Adjustable height and handle improve fit for different users
Cons:- 20V battery is limited for large yards
- 12-inch cutting width covers less ground per pass
- Dual-speed control may take some getting used to
Best for: First-time cordless trimmer buyers with small yards, narrow edges, and routine grass cleanup after mowing.
Not ideal for: Owners of large or overgrown lots, because the 20V battery and 12-inch swath are built for light maintenance rather than heavy clearing.
- Power Source:Battery powered
- Battery:20V MAX 2.5Ah battery included
- Cutting Width:12 inches
- Speed Control:Dual speed
- Transmission:PowerDrive
- Function:String trimmer and edger
- Adjustability:Adjustable height and handle
- Warranty:2-year limited warranty
Bottom line: This is the best fit for buyers who want an easy starter trimmer for small-yard cleanup and do not need heavy-duty power.
EGO POWER+ 16″ String Trimmer with POWERLOAD Technology, Battery Not Included
I rank the EGO POWER+ 16-inch POWERLOAD as the best tool-only upgrade because it gives buyers a wide 16-inch cutting path, a brushless motor, and a lighter carbon fiber shaft without forcing another battery into the cart. Compared with the EGO Power+ 15-inch, this model has a larger swath and a more premium shaft, so it makes more sense for EGO owners who already have 56V batteries and want faster trimming. The tradeoff is cost clarity: because the battery and charger are not included, it can become pricey for first-time cordless buyers. The Greenworks 60V kit is the better all-in-one package, but this EGO is cleaner for people already inside the EGO system.
Pros:- POWERLOAD head makes line replacement faster and less fussy
- 16-inch swath covers more ground than smaller cordless models
- Carbon fiber telescopic shaft helps reduce fatigue and fit different user heights
- Brushless motor and IPX4 weather resistance suit regular yard maintenance
Cons:- Battery and charger are sold separately
- Total cost rises quickly if the buyer is not already in the EGO 56V platform
- Less complete out of the box than the Greenworks 60V kit
Best for: Homeowners who already own EGO 56V batteries and want a wider, lighter, more adjustable trimmer body.
Not ideal for: First-time cordless buyers who need a battery and charger included in the box.
- Power Source:Battery powered
- Battery Platform:EGO 56V, sold separately
- Battery Life:Up to 45 minutes
- Cutting Width:16 inches
- Line Diameter:0.095 inches
- Weight:7.5 lbs
- Motor:Brushless
- Construction:IPX4-rated weather-resistant build
- Warranty:5-year limited
Bottom line: This is the EGO trimmer I would pick for buyers who already have the batteries and want a wider, more refined tool body.
BLACK+DECKER Weed Wacker with Auto Feed, 14-Inch 2-in-1 String Trimmer Lawn Edger, 6.5-Amp Electric
The BLACK+DECKER 6.5-Amp corded trimmer earns the value slot because it avoids battery pricing while still offering a useful 14-inch cut and a true trimmer-to-edger setup. Compared with the WORX WG163, it gives steadier plugged-in power and no battery juggling, which matters for buyers who trim near outlets and want predictable runtime. Compared with the EGO models, though, it feels less free-moving because the extension cord shapes every pass. I like it most for small suburban lots, sidewalks, and flower-bed borders where the wheeled edge guide matters more than raw acreage. The automatic feed spool is convenient, but it can feel less controlled than manual line management when the yard gets messy.
Pros:- 6.5-Amp motor gives steady corded power for routine weeds
- 2-in-1 trimmer and edger design adds border-cleanup value
- Automatic feed spool reduces stops for line bumping
- Light 6.3-pound body is easy to handle for short trimming sessions
Cons:- Cord limits reach and can slow work around trees, fences, and beds
- Larger yards may require a long outdoor extension cord
- Automatic line feed may use line less predictably than a manual system
Best for: Budget-focused homeowners with small lots, nearby outlets, and regular edging along sidewalks or beds.
Not ideal for: Large-yard owners or anyone who needs to move far from outdoor power without dragging an extension cord.
- Power Source:Corded electric
- Motor:6.5 Amp
- Cutting Width:14 inches
- Speed:8000 RPM
- Weight:6.3 pounds
- Functions:2-in-1 trimmer and edger
- Line Feed:Automatic feed spool
- Guide:Wheeled edge guide
- Cord Feature:Cord retention system
Bottom line: This is the practical budget pick for buyers who want reliable corded trimming and edging near the house.
EGO Power+ String Trimmer, 15-inch Cordless, Battery-Powered with POWERLOAD Technology
The EGO Power+ 15-inch POWERLOAD is my lighter EGO pick for buyers who want the same easy line-loading idea as the 16-inch EGO but can live with a slightly smaller cut. Its 7.4-pound body and telescopic aluminum shaft make it easier to place than the heavier Greenworks 60V, especially for buyers who trim around landscaping rather than wide rough areas. Compared with the EGO POWER+ 16-inch carbon fiber model, this one gives up an inch of swath and the more premium shaft material, but it keeps the core benefit: quick loading, brushless power, and up to 45 minutes of runtime. The catch is familiar: the no battery or charger setup makes sense only if the buyer already owns EGO batteries or has budgeted for them.
Pros:- POWERLOAD technology simplifies line replacement
- Lighter than many higher-voltage kit options
- Telescopic shaft helps match different user heights
- Compatible with EGO 56V ARC Lithium batteries
Cons:- Battery and charger are not included
- 15-inch swath is smaller than the 16-inch EGO and Greenworks models
- Aluminum shaft is less premium than the carbon fiber shaft on the 16-inch EGO
Best for: EGO battery owners who want a balanced cordless trimmer for weekly edging, beds, fences, and moderate grass.
Not ideal for: Buyers starting from scratch who want one box with the tool, charger, and battery included.
- Power Source:Battery powered
- Battery Platform:EGO 56V ARC Lithium compatible
- Battery Life:Up to 45 minutes
- Cutting Width:15 inches
- Weight:7.4 pounds
- Dimensions:64.9 in L x 12.6 in W
- Shaft:Adjustable telescopic aluminum
- Included Battery:No
Bottom line: This is the easier-handling EGO choice for buyers who value POWERLOAD convenience over maximum cutting width.
Greenworks 60V 16 Inch Brushless Cordless String Trimmer with 2.5Ah Battery & Charger
The Greenworks 60V 16-inch brushless trimmer belongs high in the ranking because it comes ready to work with a 2.5Ah battery and charger, while many EGO options in this batch are tool-only. Compared with the EGO POWER+ 16-inch, it is heavier at 11.2 pounds with the battery, but it removes the platform guesswork and offers up to 53 minutes of runtime. That makes it a stronger fit for larger yards where stopping to buy or swap batteries is a bigger annoyance than carrying extra weight. I also like the 0.095-inch line and 16-inch swath for thicker weeds, though buyers facing heavy brush may still prefer the DEWALT 60V attachment-capable model or a gas unit. The 45-minute recharge time can interrupt long cleanup days.
Pros:- Battery and charger are included, unlike the tool-only EGO models
- 60V brushless motor is suited to thicker weeds and heavier grass
- 16-inch swath covers more ground per pass
- Up to 53 minutes of runtime supports larger yard work
Cons:- 11.2-pound weight with battery can tire smaller users
- 45-minute recharge may pause longer trimming jobs
- Still not the strongest choice for extreme overgrowth or brush
Best for: Owners of medium-to-large yards who want a cordless kit with battery, charger, broad cutting width, and strong weed control.
Not ideal for: Buyers who need the lightest tool for short edging sessions or who already own another battery platform.
- Power Source:Battery powered
- Motor:Brushless 60V
- Battery:2.5Ah included
- Charger:Included
- Runtime:Up to 53 minutes
- Swath:16 inches
- Line Diameter:0.095 inches
- Weight:11.2 lbs with battery
- Warranty:4 years
Bottom line: This is the cordless kit I would point to for larger-yard buyers who want power and included battery hardware in one purchase.
WORX Cordless String Trimmer & Lawn Edger, 12″, 20V, WG163
The WORX WG163 is the most approachable pick here for quick lawn touch-ups because it weighs only 5.5 pounds and includes two 20V batteries. Compared with the BLACK+DECKER corded 14-inch, it gives up continuous plugged-in power but gains cordless freedom around fences, mailboxes, and corners. Compared with the Greenworks 60V, it is far easier to handle, but its 12-inch cutting diameter and 0.065-inch line show its limits in tall, dense weeds. I see it as a precision and convenience tool rather than a heavy-duty cutter. The support wheels and tilting head make edging more controlled for newer users, while the plastic parts and smaller battery platform make it less appealing for buyers who need a long-term workhorse for rough acreage.
Pros:- Very light 5.5-pound build is easy to maneuver
- Includes two 20V batteries and a charger
- 2-in-1 design switches between trimming and edging
- Support wheels and 90-degree head tilt help with cleaner borders
Cons:- 12-inch cut is slower across larger areas
- 0.065-inch line is less suited to thick weeds
- Plastic components may not age as well under rough use
Best for: Beginners, townhouse owners, and small-lawn buyers who want a light cordless trimmer that also handles neat edging.
Not ideal for: Large-property owners or anyone cutting thick overgrowth where a 60V or larger-swath trimmer makes more sense.
- Power Source:Battery powered
- Battery Voltage:20V
- Battery Included:Yes, two batteries
- Charger Included:Yes
- Cutting Diameter:12 inches
- Line Diameter:0.065 inches
- No-Load Speed:7600 rpm
- Weight:5.5 lbs
- Head Tilt:90 degrees
Bottom line: This is the pick I would choose for small yards where low weight, cordless movement, and tidy edging matter more than raw cutting force.
Greenworks 40V 12-Inch Cordless String Trimmer with 2Ah Battery & Charger
I’d rank the Greenworks 40V 12-Inch Cordless String Trimmer as the small-yard pick because it keeps the setup simple: battery, charger, auto feed, and variable speed are all included. Compared with the Greenworks 60V 16 Inch Brushless Cordless String Trimmer or the EGO POWER+ 16-Inch String Trimmer, this model gives up cutting width and heavy-growth confidence, but it is easier to justify for routine grass trimming around fences, beds, and walkways. The 12-inch swath also makes it less bulky than wider trimmers, though it means more passes on open areas. Its 2Ah battery is the main limit; I’d treat this as a tidy maintenance tool, not the right choice for thick weeds or a large corner lot.
Pros:- Complete kit includes battery and charger
- 12-inch cutting width is easy to control in tight spots
- Auto feed line reduces interruptions while trimming
- Variable speed helps balance control and battery use
Cons:- Too limited for dense weeds or heavy overgrowth
- 2Ah battery may run short on larger yards
- Narrower swath takes longer than 15- or 16-inch models
Best for: Homeowners with small suburban yards who want a complete cordless kit for weekly trimming around edges, fences, and planting beds.
Not ideal for: Large-lot owners or anyone cutting tall weeds regularly, since the 12-inch swath and 2Ah battery are built for lighter maintenance.
- Power Source:Battery
- Battery Type:Lithium Ion
- Battery Included:Yes
- Cutting Width:12 inches
- Speed:7500 RPM
- Weight:12 pounds
- Line Feed:Auto feed
- Warranty:3 years
Bottom line: Pick this Greenworks if you want a manageable cordless trimmer for light, routine yard care without paying for more power than you need.
DEWALT 60V Cordless String Trimmer with Battery & Charger, 17 Inch, Attachment Capable (DCST972X1)
The DEWALT 60V Cordless String Trimmer DCST972X1 belongs higher on my power scale because its brushless motor, high speed, and attachment-ready design make it more than a basic lawn-edge tool. Compared with the Greenworks 40V 12-Inch Cordless String Trimmer, it is the better fit for thicker growth and buyers who want one power head for multiple yard jobs. It also competes more directly with the EGO POWER+ 16-Inch String Trimmer, though DEWALT’s 15-pound weight makes comfort the tradeoff. The quick-load spool is a practical win for people who hate line changes, and the included FLEXVOLT battery adds value. Still, this is a bigger, heavier, assembly-required trimmer, so it makes sense when power and tool-system flexibility matter more than easy handling.
Pros:- 60V brushless motor is better suited to heavier cutting than smaller 20V or 40V models
- Attachment-capable design can replace several single-purpose yard tools
- Quick-load spool reduces downtime during line changes
- Battery and charger are included
Cons:- Heavy 15-pound body may fatigue some users
- Assembly is required before first use
- Runtime can still be a constraint on large jobs
Best for: Property owners with tougher trimming needs who want a cordless trimmer that can also support attachment-based yard tools.
Not ideal for: Users who need a lightweight trimmer for short sessions only, since the 15-pound build can feel tiring during extended trimming.
- Power Source:Battery powered
- Battery:1 lithium ion battery included
- Cutting Width:15 inches
- Speed:8000 RPM
- Motor:Brushless
- Weight:15 pounds
- Dimensions:40 in L x 10 in W
- Assembly Required:Yes
- Attachment Capability:Universal attachment capable
Bottom line: Choose the DEWALT if you want cordless power and attachment flexibility, and you are comfortable trading extra weight for that capability.
How We Picked
I ranked these 12 models by yard-clearing ability, ease of use, battery and charger value, and ownership friction. Cutting width and voltage mattered, but they did not win by themselves; a powerful trimmer that is tiring, awkward to reload, or sold bare without a battery falls behind a better-rounded kit. I gave extra credit to brushless motors, wider swaths, smart line loading, variable speed, and kits that make sense on day one. I marked down models that ask buyers to pay for power they may not need or accept a small cutting path when a stronger alternative sits close in price.
The order also reflects how each trimmer fits against the rest of this exact lineup. I checked product details against public references such as DEWALT’s DCST972X1 page and current WORX WG163 coverage, then compared the models by buyer outcome rather than spec sheet drama. The EGO 16-inch kit ranks above the other EGO entries because it gives the broadest mix of power and readiness. The DEWALT 60V ranks high for demanding work but loses points for bulk and price, while the WORX and BLACK+DECKER options move up when the buyer values lighter handling over force.
Factors to Consider When Choosing Best String Trimmers
The best choice depends less on the biggest voltage number and more on yard size, growth density, battery ecosystem, and how often the tool comes out of the shed. I would not rank a 17-inch attachment-capable tool ahead of a light 12-inch model for a townhouse lawn just because it has more force. The smarter move is matching the trimmer to the work pattern, because that affects fatigue, runtime, string use, and long-term cost.
Match Voltage to the Workload
20V trimmers make sense when the job is weekly grass trimming, light edging, and cleanup around beds. They are easier to store and handle, but they slow down when weeds get stalky or the edge has been ignored for weeks. 40V and 56V models are the better middle ground for most suburban yards because they carry more torque without jumping straight to contractor-style size. 60V machines like the DEWALT and Greenworks entries are better for rougher lots, fence lines, and thicker seasonal growth. The common mistake is buying the highest voltage and then avoiding the tool because it feels heavy. I would rather match voltage to the hardest recurring job, not the worst patch the yard has ever seen.
Cutting Width Changes Speed and Control
A wider head, such as a 16-inch or 17-inch swath, clears open areas faster and reduces the number of passes along long fences. That advantage fades near tight beds, patio furniture, downspouts, and young trees, where a big head can feel less precise. A 12-inch trimmer is slower on a large property but easier to guide in narrow spaces. Mid-size 13-inch and 14-inch models sit between those extremes, which is why the BLACK+DECKER options work best for ordinary edging instead of heavy clearing. Width also affects line use: larger, more powerful heads tend to chew through string faster when cutting dense growth. I would not pay for the widest swath unless the yard has enough uninterrupted trimming to make that speed useful.
Battery Platform Beats One-Time Price
Battery tools get much cheaper or much more expensive depending on what is already in the garage. A tool-only EGO POWERLOAD model can be a smart buy for someone who already owns compatible 56V packs, but it is a poor bargain for a first EGO tool if the charger and battery must be added later. The same logic helps explain why kit versions from Greenworks, DEWALT, WORX, and BLACK+DECKER deserve extra attention. Battery amp-hour rating matters because it controls runtime, but extra capacity adds weight at the handle or rear of the shaft. A second smaller pack can be better than one oversized battery for short, frequent sessions. I would price the full system, including spare spools and batteries, before judging which trimmer is truly the cheaper pick.
Line Feeding Can Decide Daily Happiness
Line systems look minor until the tool stops every few minutes. POWERLOAD and quick-load heads reduce the annoyance of rewinding string, which matters for buyers who trim long fence lines or cut around abrasive concrete. Auto-feed designs, like several BLACK+DECKER models, remove bump-feed timing but can use more line if the mechanism feeds aggressively. Manual or pre-wound spool systems, common on WORX models, are friendly for beginners but can cost more over time than bulk line. Thicker line usually cuts tougher weeds better, yet it needs a motor designed for that load. I would treat line loading as a real cost factor, not a small convenience feature.
Choose Corded, Compact, or Attachment Capable Deliberately
A corded trimmer such as the BLACK+DECKER 6.5-Amp 14-Inch can be the cheapest long-term option for a small yard near outdoor outlets. It avoids battery aging and mid-job charging, but the cord limits reach and can slow work around trees, fences, and garden beds. A compact cordless model is easier to grab for quick cleanup, especially for buyers who dislike maintaining gas tools or handling bulky batteries. Attachment-capable systems, led by the DEWALT 60V, make sense when the trimmer head is only one part of a broader yard tool plan. They cost more and weigh more, so they are a bad match for someone who only needs tidy edges after mowing. I would choose the simplest format that handles the real weekly workload, because unused versatility is just paid-for clutter.
Frequently Asked Questions
Which String Trimmer Is Best for Most Homeowners?
For most homeowners in this lineup, I would start with the EGO POWER+ 16-Inch String Trimmer with 56V Battery and Charger. It has enough cutting width and voltage for larger suburban jobs, yet it arrives as a complete kit instead of asking a first-time buyer to source a separate battery. Compared with the DEWALT 60V, it is less specialized and easier to justify for routine grass and weeds. Compared with WORX and BLACK+DECKER, it offers more headroom when the yard gets away from you. It is not the cheapest or lightest, but it is the pick with the fewest compromises across common yard sizes.
Should I Buy a 20V or 40V String Trimmer?
Buy 20V if the yard is small, the trimming is frequent, and the main goal is clean edges rather than clearing weeds. Move to 40V when the grass is thicker, the fence line is longer, or missed mowings are common. The WORX and BLACK+DECKER 20V-style picks are easier to handle, while the BLACK+DECKER 40V kits give more buffer without moving into heavy-tool territory. Runtime also changes with technique: running full speed through heavy growth drains any battery faster than trimming light edges. I would pick the lowest voltage that handles the hard weekly work, then spend saved money on an extra battery or line.
Is the DEWALT 60V Too Much for a Small Yard?
For a small, tidy yard, the DEWALT 60V DCST972X1 is probably more machine than needed. Its 17-inch capability, FLEXVOLT battery, and attachment-ready design are better matched to rough property edges, taller weeds, and buyers who want one power head for multiple outdoor tasks. Against the EGO 16-inch kit, DEWALT feels more specialized and more expensive, even though it can take on tougher jobs. The extra size can also make short edging sessions feel more involved than they need to be. I would buy it for demanding work or attachment plans, not for ten minutes of weekly sidewalk cleanup.
Are the Two BLACK+DECKER 40V 13-Inch Kits Different Enough to Rank Separately?
The two BLACK+DECKER 40V MAX 13-inch listings in this roundup appear close enough that most buyers should treat them as the same decision tier. The real differences are likely to come from bundle contents, battery capacity, retailer pricing, warranty handling, or model-year packaging. Against the BLACK+DECKER 20V, either 40V kit is the better pick for thicker grass and longer runs. Against EGO or DEWALT, both are lighter-duty choices built around value and straightforward edging. I would choose the cheaper 40V bundle after checking that it includes the battery and charger expected.
Is a WORX 3-In-1 Worth It If I Already Own a Mower?
The WORX WG170 earns its place when a buyer wants trimming, edging, and very small patch mowing from one compact tool. If there is already a full mower in the shed, the WORX WG163 may be the cleaner buy because it focuses on light trimming and edging without paying for the mini-mower angle. Both WORX models are easier to handle than the EGO, Greenworks 60V, or DEWALT picks. The tradeoff is power: they are not the right choice for dense weeds, large yards, or neglected fence lines. I would choose WG170 for tiny lawns and WG163 for simple cordless edge work.
Conclusion
My best overall recommendation is the EGO POWER+ 16-Inch String Trimmer with 56V Battery and Charger because it best balances power, cutting width, and kit completeness. For value, I would compare the Greenworks 60V 16-Inch Brushless against whichever BLACK+DECKER 40V 13-inch kit is cheaper; Greenworks is the stronger yard tool, while BLACK+DECKER is easier to justify for lighter routines. For beginners and small yards, the WORX WG163 is the simplest pick, while the WORX WG170 makes sense when tiny-lawn mowing is part of the job. For premium power, rough edges, and attachment use, I would step up to the DEWALT 60V DCST972X1. For compact cleanup, the BLACK+DECKER 20V MAX is the light-duty choice, and for plug-in savings, the BLACK+DECKER 6.5-Amp corded model fills the budget slot. Existing EGO owners should look closely at the EGO POWERLOAD tool-only options, since skipping another battery can change the value math completely.
