Best Cordless String Trimmers for Lawns (2026): 5 Picks Compared
Five cordless string trimmers for lawns compared by cutting swath, battery voltage, line feed system, weight, and warranty to help maintain yard edges.
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Top picks at a glance
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- 1
Best OverallGreenworks 24V Trimmer9.6/10View on Amazon - 2
Best Wheeled EdgerWorx WG170.2 3-in-19.5/10View on Amazon - 3
Best Trimmer & Blower ComboWorx WG928 Combo9.4/10View on Amazon - 4
Best LightweightGardenJoy 12V Trimmer9.3/10View on Amazon - 5
Husqvarna 130L Gas String TrimmerView on Amazon - 6
WORX 15" 2-in-1 Electric String Trimmer & Lawn Edger for LawnView on Amazon - 7
BLACK+DECKER String Trimmer / EdgerView on Amazon - 8
Supstable Cordless Pole Saw & Hedge Trimmer 6-in-1View on Amazon - 9
Wild Badger Power Gen2 26cc Gas String TrimmerView on Amazon
Keeping lawn borders, fence lines, and garden beds manicured requires the right equipment after the lawn mower finishes its passes. The best cordless string trimmers for lawns offer quiet, push-button operation without fuel mixing, pull cords, or trailing extension cords. In this comparison, we evaluate five battery-powered models featuring 12-inch cutting swaths, compact blade designs, support wheels, and folding shafts to help you find the best cordless string trimmer for home use on residential lawns under two acres. For each model, we report exact manufacturer specifications from published listings and clearly state what each listing omits.
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Quick picks
- Best Overall Greenworks 24V Trimmer: Highest Acre Score here: 24V platform, 3-year tool warranty, and .065-inch auto-feed head Check price on Amazon
- Best Wheeled Edger Worx WG170.2 3-in-1: Dual support wheels, 90-degree pivoting head, and 3-in-1 trimming, edging, and mini-mowing Check price on Amazon
- Best Trimmer & Blower Combo Worx WG928 Combo: Two tools in one kit: 12-inch trimmer and 360 CFM leaf blower with two 20V batteries Check price on Amazon
- Best Lightweight GardenJoy 12V Trimmer: Lowest stated weight at 3.7 lb, interchangeable blade system, and 1-year machine warranty Check price on Amazon
Our acreage picks
Greenworks 24V 12 in Cordless String Trimmer (ST24B217)
Cordless 12-inch string trimmer and edger on the Greenworks 24V platform with a 3-year tool warranty and auto-feed line.
Who it's for: homeowners with small to medium lawns who want a quiet, lightweight string trimmer backed by an established tool platform and a clear warranty.
Who should skip it: anyone maintaining large properties who needs hours of continuous trimming without stopping to recharge, or those requiring dual-line cutting.
Read the full review
The ST24B217 is a 12-inch string trimmer and edger operating on the Greenworks 24V battery platform. The listing states an 8500 rpm motor speed, a 30-minute average runtime, a 75 dB noise rating, and a .065-inch single-line auto-feed head. Its telescoping aluminum shaft adjusts for users between 4'8" and 6'5", and the head rotates 90 degrees for edging. The listing includes a 3-year tool warranty and 2-year battery coverage. Note a minor contradiction in the listing: bullets state 6 lb while the spec table lists 5.2 lb.
Pros
- 3-year tool warranty and 2-year battery coverage stated on the listing
- 24V battery platform powers 150+ compatible Greenworks tools
- Telescoping aluminum shaft adjusts for user heights from 4'8" to 6'5"
- .065-inch single-line auto-feed head and 90-degree rotating head for edging
Cons
- Listing bullets state 6 lb while the spec table lists 5.2 lb item weight
- Only one 2.0Ah battery included, rated for 30 minutes of runtime
- Single-line feed rather than dual-line cutting head
- Slope rating is not stated on the listing, only a 90-degree pivoting head
Worx 20V 12 in 3-in-1 Cordless String Trimmer and Edger (WG170.2)
Lightweight 12-inch trimmer, edger, and mini-mower featuring dual support wheels, 90-degree pivot head, and push-button line feed.
Who it's for: homeowners with sidewalks, garden beds, and driveways who want straight edging lines supported by wheels and push-button line advance.
Who should skip it: buyers who want a published warranty term or those needing a stated runtime figure before purchasing.
Read the full review
The Worx WG170.2 combines trimming, edging, and mini-mowing in a single 5.5 lb tool. The listing gives a 12-inch cutting width, a 7600 rpm motor speed, and an on-demand Command Feed line system that dispenses line via a push-button without bumping. Dual support wheels guide the cutting head along lawn borders, and the shaft collapses for storage. The spec table lists dimensions of 45.1"L x 37.4"W, where 37.4 inches wide is an unusual dimension for a trimmer. The listing does not state a warranty term or rated runtime in minutes.
Pros
- 3-in-1 function switches between trimming, wheeled edging, and mini-mowing
- Dual support wheels guide edging along walks and driveways
- Push-button Command Feed advances fresh line on demand
- Lightweight design at 5.5 lb with a 7-position adjustable handle
Cons
- Warranty term is not stated on the listing
- Listing gives no rated runtime in minutes or square feet
- Spec table lists an unusual item width of 37.4 inches
- Only one 2.0Ah battery included in the kit
Worx 20V 12 in Cordless String Trimmer and Leaf Blower Combo (WG928)
Two-tool yard care kit pairing a 12-inch Command Feed trimmer/edger with a 360 CFM turbine blower and two 2.0Ah batteries.
Who it's for: yard owners who need both an edging trimmer and a leaf blower to clear grass clippings from patios, driveways, and walks in one package.
Who should skip it: anyone seeking a standalone trimmer with dedicated specs and a published manufacturer warranty.
Read the full review
The Worx WG928 provides a complete post-mowing cleanup setup by bundling a 12-inch string trimmer/edger with a turbine leaf blower delivering 360 CFM and 75 mph. The trimmer uses the brand's Command Feed push-button system for line advance and pivots for edging. Two 2.0Ah batteries and a charger are included. There are contradictions in the listing: the title and bullets confirm two batteries, but the spec table states one battery required; furthermore, the spec table enters 75 mph under speed rather than stating trimmer motor rpm. The listing does not state a warranty term or battery runtime.
Pros
- Two-tool kit includes both a 12-inch string trimmer and a 360 CFM turbine blower
- Includes two 20V 2.0Ah batteries and a charger
- Command Feed push-button line delivery on the trimmer
- PowerShare battery system works across WORX 20V, 40V, and 80V tools
Cons
- Warranty term is not stated on the listing
- Spec table contradicts title and bullets by listing only 1 battery required
- Trimmer motor speed is not stated, listing only the 75 mph blower airspeed
- Combined package weight is 10.4 lb, and individual tool weights are not stated
GardenJoy 12V Cordless Lawn Trimmer with Wheel Kit (FH-GT120NEW)
Ultralight 3.7-pound 12V trimmer equipped with support wheels, three blade styles, and a 1-year machine warranty.
Who it's for: users seeking the lightest possible garden trimmer with wheeled support for trimming small borders and tight garden beds.
Who should skip it: anyone maintaining medium to large lawns who needs a broad 12-inch cutting swath and conventional flexible trimmer line.
Read the full review
The GardenJoy FH-GT120NEW is an ultralight 3.7 lb lawn trimmer powered by a 12V 2000mAh battery. Unlike traditional string trimmers, it uses three blade types: a circular saw blade for thicker growth, two metal blades for weeds, and six plastic blades for light grass. It features a detachable wheel kit, an adjustable handle, a snap-together shaft, and a double-switch safety lock. The listing states a 1-year machine warranty and a 10000 rpm motor speed, but its cutting width is only 5.83 inches, and runtime in minutes is not stated.
Pros
- Lightest model here with a stated weight of 3.7 lb
- Includes 3 blade types: saw blade, metal blades, and plastic blades
- Detachable support wheels and double-switch safety lock
- 1-year machine warranty stated on the listing
Cons
- Narrowest cutting swath here at 5.83 inches, less than half the other picks
- Operates on a 12V platform, the lowest voltage in this comparison
- Uses rigid blades rather than standard replacement trimmer string
- Listing does not state battery runtime in minutes
KOMASTY 20V 12 in Foldable Cordless String Trimmer (TT-BBC2012BM-1Z)
Foldable 20V 12-inch string trimmer and edger with two 2.0Ah batteries, 9,500 rpm motor, and auto line feed.
Who it's for: townhouse or apartment owners with small yards who need a folding trimmer that fits into tight storage spaces.
Who should skip it: anyone wanting a stated weight, a recognized brand track record, or a published manufacturer warranty.
Read the full review
The KOMASTY TT-BBC2012BM-1Z features an innovative 3-way folding shaft that collapses 180 degrees for vertical storage in tight garage corners. The listing states a 12-inch cutting width, a 9500 rpm motor speed, an automatic line feed system, a 90-degree adjustable head, and a 180-degree rotatable handle. It includes two 2.0Ah batteries and a charger, providing a total stated runtime of 30 minutes (roughly 15 minutes per pack). However, the listing omits the tool's weight in pounds and states no warranty term.
Pros
- Shaft folds 180 degrees in three ways for vertical compact storage
- Two 2.0Ah batteries included, rated for up to 30 minutes total runtime
- High motor speed of 9,500 rpm with a 12-inch cutting swath
- Automatic line feed dispenses cord as needed without manual bumping
Cons
- Weight is not stated anywhere on the listing
- Warranty term is not stated on the listing
- Unestablished brand with limited brand background
- Total 30-minute runtime requires swapping between the two included batteries
Other machines to compare
Husqvarna 130L Gas String TrimmerCheck price on Amazon
WORX 15" 2-in-1 Electric String Trimmer & Lawn Edger for LawnCheck price on Amazon
BLACK+DECKER String Trimmer / EdgerCheck price on Amazon
Supstable Cordless Pole Saw & Hedge Trimmer 6-in-1Check price on Amazon
Wild Badger Power Gen2 26cc Gas String TrimmerCheck price on Amazon
Side-by-side specs
| Model | Acre Score | Cutting swath | Battery platform | Cutting system | Weight | Stated runtime | Warranty |
|---|---|---|---|---|---|---|---|
| Greenworks 24V 12 in (ST24B217) | 9.6/10 | 12 in | 24V, 1 x 2.0Ah | .065 in auto-feed line | 6 lb (listing bullets) | 30 minutes | 3-year tool, 2-year battery |
| Worx 20V 12 in 3-in-1 (WG170.2) | 9.5/10 | 12 in | 20V, 1 x 2.0Ah | Command Feed line | 5.5 lb | Not stated | Not stated |
| Worx 20V Combo (WG928) | 9.4/10 | 12 in | 20V, 2 x 2.0Ah | Command Feed line | 10.4 lb (kit) | Not stated | Not stated |
| GardenJoy 12V Trimmer (FH-GT120NEW) | 9.3/10 | 5.83 in | 12V, 1 x 2.0Ah (2000mAh) | 3 blade types | 3.7 lb | Not stated | 1-year machine |
| KOMASTY 20V Foldable (TT-BBC2012BM-1Z) | 9.3/10 | 12 in | 20V, 2 x 2.0Ah | Automatic line feed | Not stated | 30 minutes (2 batteries) | Not stated |
Specifications are manufacturer rated as listed, collected 9 October 2026.
Acreage and terrain fit
Greenworks 24V Trimmer
Worx WG170.2 3-in-1
Worx WG928 Combo
GardenJoy 12V Trimmer
KOMASTY 20V Foldable
Buying guide: choosing the best cordless string trimmers for lawns
Cutting swath and trimmer head design
Cutting width determines how quickly you can trim along fences and garden borders. Four models in this group provide a standard 12-inch cutting swath, which offers a practical balance between cutting coverage and battery power consumption on typical residential lawns. A 12-inch swath clears weeds efficiently while remaining nimble around landscape stones and delicate perennials. The GardenJoy trimmer uses a much narrower 5.83-inch cutting width with rigid blades rather than flexible line. While a narrower head fits between narrow plantings, it requires significantly more passes to edge an open lawn.
Battery voltage and multi-tool platforms
Voltage ratings among these picks range from 12V up to 24V. The Greenworks model operates on a 24V platform that powers more than 150 compatible yard and workshop tools. Worx uses its 20V PowerShare system, which allows batteries to interchange across 20V, 40V, and 80V equipment. The KOMASTY trimmer runs on a 20V platform and includes two 2.0Ah batteries in the box, providing an extra pack when runtime runs short. The GardenJoy trimmer uses a compact 12V battery suitable for light yard grooming but with less raw torque for dense weed patches.
Line feed systems: auto-feed vs push-button feed
Managing trimmer line affects convenience during weekend yard work. The Greenworks ST24B217 utilizes a .065-inch single-line auto-feed system that advances line automatically when you start the trigger, eliminating manual bumping. The Worx WG170.2 and WG928 models feature Command Feed, an electronic push-button mechanism on the handle that dispenses fresh line on demand without stopping. KOMASTY also provides an automated line feed system. In contrast, the GardenJoy trimmer replaces flexible nylon cord entirely with interchangeable plastic, steel, and circular saw blades.
Wheeled edging and pivoting heads
Converting a trimmer into a lawn edger allows you to create sharp borders along concrete driveways and walkways. The Worx WG170.2 features dual support wheels that roll smoothly along curbs and pavement while the 90-degree pivoting head maintains a vertical cutting angle. GardenJoy provides a detachable triangular wheel kit to reduce shoulder fatigue. The Greenworks trimmer incorporates a 90-degree rotating head for edging, though it relies on user control rather than dedicated guide wheels.
Shaft ergonomics and storage footprint
Trimmer weight and shaft adjustability directly impact physical strain during longer trimming sessions. The GardenJoy trimmer is the lightest model here at 3.7 lb, followed by the Worx WG170.2 at 5.5 lb and the Greenworks ST24B217 at 6 lb (with 5.2 lb listed in its spec table). Greenworks includes an aluminum telescoping shaft adjustable for operators between 4’8″ and 6’5″. For tight storage spaces, the KOMASTY trimmer incorporates an innovative 3-way folding shaft that collapses 180 degrees for vertical storage in closets or crowded garage corners.
Planning runtime for home lawns
Cordless string trimmers for lawn care generally deliver between 15 and 30 minutes of runtime per 2.0Ah battery charge. Greenworks rates its 24V trimmer for an average of 30 minutes of continuous trimming, while KOMASTY lists 30 minutes total across its two included 2.0Ah packs. Trimming dense growth or using edging modes at high speeds draws more current, so having two battery packs available, as supplied with the Worx WG928 and KOMASTY models, ensures you can complete post-mowing cleanup without waiting for a recharge.
Lawn size, deck width and speed in; minutes per mow out. Or work backward from the time you want to spend.
Wear eye and hearing protection, long pants and sturdy footwear, and keep bystanders well back while the line or blade spins. Clear stones and debris first, and stop the engine or remove the battery before clearing the head. Refuel only with the engine off and cool. See OSHA landscaping safety. Read our Safety Disclaimer.
The Acre Score explained
The Acre Score weighs five factors: performance (cutting swath, motor rpm, and cutting power), build quality (shaft construction, rotating head mechanics, and weight distribution), value (included battery packs, chargers, and features relative to specifications), safety (safety locks, protective guards, and stated certifications), and warranty (length of coverage and stated terms).
| Product | Acre Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Greenworks 24V Trimmer | 9.6 | 30 | 21 | 22 | 0 | 3 |
| Worx WG170.2 3-in-1 | 9.5 | 29 | 21 | 21 | 0 | 0 |
| Worx WG928 Combo | 9.4 | 28 | 19 | 22 | 0 | 0 |
| GardenJoy 12V Trimmer | 9.3 | 23 | 18 | 20 | 0 | 2 |
| KOMASTY 20V Foldable | 9.3 | 28 | 18 | 20 | 0 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
FAQ: mowing large lots
What is the best trimmer string?
For residential cordless string trimmers, .065-inch round nylon trimmer line, as specified on the Greenworks ST24B217, provides clean cuts on grass while maintaining motor rpm and battery runtime. Round line feeds reliably through automated and push-button dispenser heads without jamming. For heavier growth, some compact tools like the GardenJoy bypass nylon string entirely in favor of rigid metal or plastic cutting blades.
What is the best cordless grass trimmer to buy?
The best model depends on your lawn layout and existing power equipment. For general residential lawn care, a 12-inch cordless string trimmer backed by an established multi-tool battery platform and a multi-year manufacturer warranty offers the best utility. If straight edging along concrete walkways is your priority, look for a model with dedicated support wheels and a 90-degree pivoting head.
How long does a 2.0Ah battery last in a cordless string trimmer?
A standard 2.0Ah battery typically powers a residential cordless trimmer for 15 to 30 minutes of active cutting. The Greenworks 24V listing states a 30-minute average runtime, while KOMASTY rates two 2.0Ah batteries for 30 minutes of combined operation. Cutting thick overgrown weeds or running continuously along hard edges reduces runtime.
Is a string trimmer with wheels worth it for lawn edging?
Support wheels guide the cutting head along sidewalks and driveways, keeping the line at a consistent height and preventing accidental scalping. Models like the Worx WG170.2 use dual wheels to support the machine’s 5.5 lb weight, making it significantly easier to maintain clean borders without arm fatigue.
Can a cordless string trimmer replace a lawn mower?
A cordless string trimmer is designed for borders, fence lines, and tight areas where a mower cannot reach. While some models with support wheels and multi-position heads advertise light mini-mowing capability for small patches, a dedicated push mower or riding mower remains necessary for open turf.
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