Best Cordless String Trimmers for Edging, Trimming and Small Yards
Product details in this guide come from the Amazon product pages for the 15 items linked below. Cutting widths, speeds, batteries and features are reported as the pages give them. Where two fields on one page disagree, the entry says so. Two items are not string trimmers as such: one is a battery charger and two are trimmer-and-blower kits.
Quick answer: how to choose a cordless string trimmer
Start with the battery. Seven of the 15 items here are tool-only, so the battery and charger are extra purchases. If you already own a battery platform from WORX, Greenworks, Dewalt, Milwaukee, Makita or Ryobi, a tool-only model can save money. If you do not, pick a kit that includes two batteries and a charger. Next, check the cutting width. A 12-inch swath covers most lawns and edges in one pass, while a 5.9-inch model suits tight spots and narrow edges.
After battery and width, look at three features that change daily use. Automatic or command line feed saves you from stopping to tap the head. A head that tilts or rotates lets you switch from trimming to edging without a second tool. A telescopic shaft or handle adjustment helps taller and shorter users keep their back and arms relaxed. Check the spool line diameter too, since replacement line must match the head.
Quick picks by situation:
- Most small and medium yards, with batteries included: WORX WG163 2-in-1, which ships with two 20V batteries and a charger.
- Edging and walkway work with one tool: WORX WG170.9 3-in-1, which converts to an edger and a mini mower.
- Trimming plus clearing leaves: Greenworks 40V trimmer and 390 CFM blower combo, with one 2.0 Ah battery included.
- Storage in a small garage or shed: KOMASTY 20V, which folds in three ways and includes two batteries and a charger.
- Narrow edges and tight spaces: Windpost 5-in-1, with a 5.9-inch cutting width and a telescopic rod.
Who should buy and who should skip
Buy a cordless trimmer if you maintain a small or medium yard, want to edge along walkways and beds without a gas engine, or need to trim around fences, planters and tree bases. Cordless models avoid fuel and oil, and most run more quietly than gas models. They suit people who prefer quick, simple maintenance and who can recharge batteries between jobs.
Skip a cordless trimmer if your yard is mostly thick brush or heavy weed growth. The Ohey page states that its tool is designed for grass and light brush, not for cutting or shearing thick material. Skip a tool-only model if you do not already own a compatible battery, because the batteries and charger add cost. Skip any item whose battery runtime is too short for your job; several listings give 30 minutes or less per battery set.
Buying criteria that matter
Battery platform and runtime. The pages name several battery families: WORX 20V PowerShare, Greenworks 40V and 24V, Dewalt 60V FlexVolt and 20V MAX XR, Makita 18V, Milwaukee M18, and Ryobi 40V. Runtime varies from about 30 minutes on two batteries (KOMASTY) to about 71 minutes on one 4 Ah battery (Ryobi). If your yard takes longer, buy a spare battery or choose a platform you can extend.
Cutting width. Widths on these pages run from 5.9 inches to 15 inches. A wider head covers more ground per pass but is heavier to swing. A narrow head is easier to control along edges and fences.
Line feed. Command feed and automatic feed both release more line without stopping. The WORX pages describe push-button command feed, the KOMASTY and Greenworks pages describe automatic feed, and the Ohey page describes a wheel-assisted edging head. Automatic feed suits long jobs; a manual bump head suits small trims.
Head angle and shaft. A head that tilts 90 degrees lets you reach slopes and the base of trees, and a rotating head switches you between trimming and edging. Telescopic shafts, adjustable handles and folding shafts make the tool fit different body heights and storage spaces.
Line diameter. The pages list several line sizes: 0.065 inch on WORX and Greenworks, 0.080 inch (accepting 0.095 inch) on the Dewalt, and 0.11 inch on the MtiolHig. Match the spool line to the head, and check the packaging before buying replacement line.
Fit and storage checks
Measure the space where the tool will hang or stand. The folding KOMASTY shaft folds in three ways, which suits a tight garage corner. The Windpost pages list a telescopic rod that adjusts over a height range, so it suits users of different heights. Several full-length tools run more than 45 inches long, so check the wall or floor space before you buy.
Check the weight with the battery in place. Several pages list the tool weight without the battery; a kit with two batteries can weigh noticeably more than the trimmer alone.
Comparison table
| # | Product | Brand | Cutting width (as listed) | Battery in box | Head or feature | Type |
|---|---|---|---|---|---|---|
| 1 | WORX WG163 2-in-1 (B018S68U40) | WORX | 12 in | Yes, two 20V and charger | Command feed, 90-degree tilt | Trimmer and edger |
| 2 | WORX WG170.9 3-in-1 (B07TB4WSD3) | WORX | 12 in | No | Converts to mini mower | Trimmer, edger and mower |
| 3 | Greenworks 40V Trimmer and Blower (B01CA4PS8C) | Greenworks | 12 in | One 2.0 Ah battery | 390 CFM blower | Combo kit |
| 4 | WORX WG163.9 2-in-1 (B01DGPH8M8) | WORX | 12 in | No | Command feed, 90-degree tilt | Trimmer and edger |
| 5 | KOMASTY 20V Trimmer (B0G6KMRNJ5) | KOMASTY | 12 in | Yes, two 2.0 Ah and charger | Folding shaft | Trimmer and edger |
| 6 | Greenworks 24V Trimmer and Blower (B0GKFXYBBW) | Greenworks | 12 in | One battery | 270 CFM blower | Combo kit |
| 7 | MtiolHig 3-in-1 (B0DSPSGPNX) | MtiolHig | See entry 7 | No | Fuel gauge, 75-degree head | Trimmer, edger and mower |
| 8 | Gonine Charger (B0GJRCCP6Z) | Gonine | Not a trimmer | Charger only | Battery charger | Accessory |
| 9 | Houselife Trimmer and Blower Combo (B0G43S39CJ) | Houselife | 12 in | No | 400 CFM blower | Combo kit |
| 10 | RAXONE 2-in-1 Trimmer (B0HFJCZDT6) | RAXONE | 12 in | Yes, two 2.5 Ah and charger | Rotating head | Trimmer and edger |
| 11 | SHOHO Milwaukee-Compatible Trimmer (B0HHMDT5SK) | shoho | 12 in | No | Three-in-one | Trimmer, edger and mower |
| 12 | Ohey Brush-Style Trimmer (B0H371B18X) | Ohey | See entry 12 | Two batteries | Four cutting modes | Trimmer and brush cutter |
| 13 | Windpost 5-in-1 Trimmer (B0HGKF8PKB) | Windpost | 5.9 in | See entry 13 | Telescopic rod | Trimmer and edger |
| 14 | DEWALT 60V FlexVolt Trimmer (B078SKVPLD) | DEWALT | 15 in | No | Hi and Lo trigger | Trimmer |
| 15 | RYOBI 40V Trimmer (B0D23XZKZL) | RYOBI | See entry 15 | No | Attachment capable | Trimmer |
The 15 items, one by one
1. WORX WG163 20V 2-in-1 Trimmer and Edger (B018S68U40)
This is a 12-inch trimmer and edger with a 7,600 rpm no-load speed, sold with two 20V lithium-ion batteries and a charger. The page lists a machine weight of 5.5 pounds, a 10-inch cutting line length and a 0.065-inch line. The command feed button releases more line without stopping, and the head tilts 90 degrees for slopes. Rubberized wheels guide the edger for straighter lines, and the adjustable spacer guard protects plants and lawn decor. The kit includes a safety guard, a flower guard, an edger wheel, a spool and spool caps.
The benefit of a battery in the box is that you can start the same day, and the batteries work on other WORX 20V tools, according to the page. The package measures 44.6 by 35 inches. No conflicts appear in the fields for this entry.
2. WORX WG170.9 20V 3-in-1 Trimmer, Edger and Mini Mower (B07TB4WSD3)
This is a 12-inch Revolution-style tool that converts from a string trimmer to an in-line wheeled edger and a mini mower. It runs at 7,600 rpm and weighs 4.6 pounds in the tool-only configuration. The page lists seven handle adjustments and six rotating head settings, which help with reach and posture. The command feed adds line on demand. The kit includes three 10-foot spools, support wheels, a safety guard, a flower guard and a spool holder.
Battery and charger are sold separately, so this is a good pick if you already own a WORX 20V battery. The page describes it as a longer and stronger version of the earlier WORX model, with a motor it lists at 7,600 rpm. Package dimensions are 45.1 by 37.4 inches.
3. Greenworks 40V 12-Inch Trimmer and 390 CFM Blower Combo (B01CA4PS8C)
This is a trimmer and leaf blower kit on one 40V platform. The trimmer has a 12-inch cutting width and runs at 7,500 rpm, and the blower is rated at 390 CFM with cruise control. One 2.0 Ah lithium-ion battery is included. The page describes automatic line feed and a 0.065-inch cutting line, and it lists a 3-year warranty on the head. Together the kit lets you trim edges and then clear the same walkway with one battery.
Not confirmed: the copy describes an 8-pound balanced design for the trimmer, while the item weight field lists 16.5 pounds for the full kit. Both can be true because the kit includes a blower, but check the trimmer-only weight if you tire easily. The page lists four items without naming each one, so confirm what the box contains before buying.
4. WORX WG163.9 20V 2-in-1 Trimmer and Edger, Tool Only (B01DGPH8M8)
This is the bare-tool version of the 2-in-1 WORX trimmer, with a 12-inch cutting width, a 7,600 rpm speed and a 4.6-pound weight. The command feed spool adds line at the push of a button. The page describes a telescopic shaft that adjusts to height and posture, a 90-degree tilting shaft for slopes and hard-to-reach areas, and a rubberized twin-wheel set that supports and guides the edger. The included component is the trimmer alone.
Battery and charger are not included, so this model fits someone who already owns a compatible WORX 20V battery. If you are starting from scratch, pick WG163 (entry 1) instead, which ships with batteries.
5. KOMASTY 20V Foldable Trimmer and Edger (B0G6KMRNJ5)
This 12-inch cordless trimmer runs at 9,500 rpm, with two 2.0 Ah batteries and a charger included. The page gives a total runtime of about 30 minutes from the two batteries, which the copy says is enough for most small yard jobs. The shaft folds 180 degrees in three ways, which suits tight garages and apartments. The head adjusts 90 degrees and the handle rotates 180 degrees. Automatic line feed releases line as needed.
The copy advises keeping the cutting head parallel to the ground to avoid hitting hard objects, and it asks you to let batteries cool before recharging to protect their life. The product dimensions are 40 by 8 inches. The 30-minute runtime is the main limit: larger yards will need spare batteries.
6. Greenworks 24V 12-Inch Trimmer and 270 CFM Blower Combo (B0GKFXYBBW)
This is a brushless trimmer and blower kit. The trimmer has a 12-inch cutting path with a 0.065-inch single line and auto-feed, and the blower moves 270 CFM at 130 mph for clearing leaves, clippings and light debris. The copy says the trimmer weighs 4.08 pounds without the battery, and it includes a 3-year warranty for both tools. The charger is a 30W USB-C GaN unit, which also charges phones and tablets, according to the page. One battery is included.
The product dimensions are 48.97 by 10.27 inches. The battery is listed as a nonstandard type, so check that the charger and battery match before you buy extra batteries. The kit suits someone who wants trimming and clearing from one platform.
7. MtiolHig 3-in-1 Weed Wacker, Makita 18V Compatible, Tool Only (B0DSPSGPNX)
This is a tool-only trimmer designed for Makita 18V batteries, with a built-in fuel gauge that shows remaining charge. The page describes a brushless motor, a 75-degree tilting head, a 90-degree handle and a 50 to 60-inch telescopic shaft. It folds to 28 inches and weighs about 5.5 pounds according to the copy. The package includes 18 extra 0.11-inch lines and an adjustable guard. The page says battery and charger are not included, and it recommends a 4 Ah or larger battery for best runtime.
Not confirmed: the speed and cutting width fields read 4,800 rpm and 12 inches, while the copy gives 8,500 rpm and an 11-inch cutting width. The weight field lists 6 pounds, while the copy gives 5.5. Confirm the speed and width before comparing this model with others in the set.
8. Gonine LCS1620B Replacement Battery Charger (B0GJRCCP6Z)
This entry is a replacement battery charger, not a string trimmer. It is designed for Black+Decker 12V MAX and 20V MAX lithium batteries, and it works with drills, screwdrivers, saws, multi-tools, vacuum cleaners and LED work lights according to the page. The output is 20V DC at 0.4 A, the port is a round jack, and the cord is 4.9 feet long. The page lists a 1-year warranty and includes overload, short-circuit and temperature protection.
Not confirmed: the input voltage field reads 120 V AC, while the copy describes a worldwide input range of 100 to 240 V. Check the label on the charger before you plug it in abroad. If you were looking for a trimmer, skip this entry; if you need a charger for a Black+Decker tool, it is a separate purchase.
9. Houselife Cordless Weed Eater and Leaf Blower Combo (B0G43S39CJ)
This is a bare-tool kit with a 12-inch string trimmer and a 400 CFM, 130 mph handheld blower. It is compatible with Dewalt 20V MAX XR batteries, and the page says it lets you add tools without buying another charger. The page describes the trimmer as 4.2 pounds and the blower as 3 pounds, which adds to the 7.2-pound total on the item weight field. The trimmer has auto line feed and an 8,500 rpm motor, and the copy describes a 3-in-1 head that converts to an edger and a mini mower.
Battery and charger are not included. Check that your Dewalt battery is a 20V MAX XR model before buying. The manufacturer lists a 1-year warranty.
10. RAXONE 2-in-1 Trimmer and Edger with Two Batteries (B0HFJCZDT6)
This is a 12-inch trimmer and edger with a 9,500 rpm motor, sold with two 2.5 Ah batteries and a fast charger. The page gives a total weight of 6.2 pounds and a 12-inch cutting path. Automatic line feed releases line without manual tapping, and the head rotates 90 degrees and tilts 0 to 90 degrees for slopes and corners. The kit includes 10 lines. The product dimensions are 49.21 by 12 inches.
The batteries and charger are included, so this is a self-contained pick for a small yard. The page does not name a battery warranty.
11. SHOHO Cordless Trimmer, Milwaukee M18 Compatible, Tool Only (B0HHMDT5SK)
This is a bare-tool 12-inch trimmer built to run on Milwaukee M18 batteries, which suits professionals who already own that platform. The copper-wound motor runs at 9,000 rpm, according to both the field and the copy. The page describes a three-in-one design that converts to a precision trimmer, an upright wheeled edger and a mini lawn mower. It has a 180-degree adjustable auxiliary handle and a head that tilts from 0 to 90 degrees. The page lists eight spare spools, a spool system that the copy says avoids line tangling during installation, and a 1-year warranty.
Batteries and chargers are not included. The product dimensions are 51 by 16 inches.
12. Ohey 20,000 RPM Cordless Brush Cutter and Trimmer (B0H371B18X)
This is a four-in-one tool with two batteries that the page rates at about 120 minutes of average life. The copy describes an 800 W motor with a 20,000 rpm no-load speed, four cutting modes and tool-free blade changes. The kit includes five long trimmer lines, five short lines, four steel blades and two brush-cutter blades. The page gives a cutting width that depends on the attachment: up to 11 to 12 inches with the edging wheel and longest line, 7 to 8 inches with the steel blade, and 6 to 7 inches with the brush blade and auxiliary wheels.
The copy states that the tool is not designed for cutting, slicing, grinding or shearing materials, so treat it as a grass and light-brush tool. The page lists a 3-year warranty and says support responds within 12 hours.
13. Windpost 5-in-1 Cordless Weed Wacker with Wheels (B0HGKF8PKB)
This is a 5-in-1 weed wacker with detachable wheels and a telescopic rod that adjusts from 98 to 155 centimeters. The cutting width is 5.9 inches, which is narrower than most other items here, so it suits edges, stone paths and tight corners more than broad lawns. The head adjusts from 0 to 90 degrees, and the page lists five blade types, protective gloves and a foldable structure that saves storage space. The housing is nylon, polyprop and stainless steel, according to the copy.
Not confirmed: the battery field reads two AAA batteries included, while the copy describes two rechargeable batteries with a dedicated charger. Not confirmed: the weight field reads 3.5 pounds, while the copy gives 2.5 kilograms, which is about 5.5 pounds. Check the battery type and weight before ordering.
14. DEWALT DCST970B 60V FlexVolt Cordless String Trimmer, Tool Only (B078SKVPLD)
This bare-tool trimmer has a 15-inch cutting swath, the widest of the set, and a brushless motor that the page describes as maximizing runtime and motor life. It weighs 12 pounds according to the item field, which is heavy for long trimming sessions. The gear drive is described as powering through tough overgrowth. A variable speed trigger with Hi and Lo settings lets you manage power and battery use. The bump-feed head comes with one quick-load spool of 0.080-inch dual line and accepts 0.095-inch line as well.
The package is tool only, so you need a compatible 60V FlexVolt battery and charger. The page lists a 3-year limited warranty, which is among the longest in this set.
15. RYOBI 40V Attachment-Capable 15-Inch String Trimmer, Tool Only (B0D23XZKZL)
This is a bare-tool 40V trimmer designed for lawn and garden trimming. The page lists 8,500 rpm, a runtime of 71 minutes on a 40V 4 Ah battery, and a weight of 11 pounds. It is attachment capable, so the same drive unit can take other Ryobi attachments, which saves space if you already own one. The copy calls the tool a gas replacement with more power than a 21cc gas trimmer. That is a manufacturer claim, and the page gives no independent test data.
Not confirmed: the name says 15 inches, while the cutting width field reads 13 inches. Measure the swath you need before buying. The page lists a 30-day limited warranty, which is short compared with others in this set. Battery and charger are sold separately.
Best for and avoid if
Edging along walkways and beds. The WORX WG163 (battery included), WORX WG170.9 (converts to an edger and mini mower), and the RAXONE 2-in-1 (batteries and charger included) suit edging. Choose the WORX models if you already own WORX batteries, and the RAXONE if you want a complete kit.
Trimming plus clearing leaves. The Greenworks 40V and 24V combo kits give a trimmer and a blower on one battery platform. The Houselife combo suits Dewalt 20V MAX XR owners, and it adds a 400 CFM blower.
Small garages and apartments. The KOMASTY folds in three ways and includes batteries and a charger. Its 30-minute runtime is the limit, so keep a spare battery for bigger jobs.
Narrow edges and tight corners. The Windpost 5-in-1 with a 5.9-inch cutting width suits stone paths and fences. Avoid it for broad lawns, where a 12-inch swath covers more ground per pass.
Large lawns or heavy trimming. The DEWALT 60V FlexVolt has a 15-inch swath and a 3-year warranty, but it weighs 12 pounds without the battery. The RYOBI 40V gives 71 minutes on a 4 Ah battery, which helps for longer jobs.
Owners of a specific battery platform. The SHOHO (Milwaukee M18), MtiolHig (Makita 18V), Houselife (Dewalt 20V MAX XR) and WORX tool-only models suit people who already own those batteries. Avoid them if you need the battery in the box.
Avoid if you need a cutting tool for thick brush. The Ohey page says the tool is not for cutting or shearing materials. Choose a brush-rated tool for heavy growth.
Pre-purchase checks
Run through this checklist before you order:
- Confirm the battery and charger. Check whether the item is tool-only or kit, and whether the battery matches your platform.
- Check the cutting width against the area you need to cover: 12 inches for general lawn work, 5.9 inches for narrow edges.
- Match the line diameter. Note the head line size (0.065 inch, 0.080 inch, 0.095 inch or 0.11 inch) and buy replacement line to match.
- Confirm the runtime. A single battery set may run 30 minutes or 71 minutes, so match runtime to your yard size.
- Check the weight with the battery in place. Several pages list weight without the battery.
- Check the storage footprint. Measure the length of the folded or full shaft before buying.
- Look at the warranty. The DEWALT lists 3 years and the RYOBI lists 30 days; check the terms that match your usage.
- Verify any Not confirmed field before ordering, including the MtiolHig speed, the Windpost battery type and the RYOBI width.
Care and maintenance
Keep the cutting head parallel to the ground when you trim, as the KOMASTY and RAXONE pages advise, so the line does not strike hard objects and break. Clear grass and debris from the guard and the head after each use, since build-up can stop the spool from turning. Replace the line before it gets too short to feed.
Let batteries cool for a few minutes after heavy use before you recharge them, as the KOMASTY page recommends. Store batteries and tools indoors out of direct heat, and check the spool and head fasteners at the start of each season. Clean the battery contacts with a dry cloth, and do not use water on the motor housing.
Frequently asked questions
Is a cordless trimmer strong enough for thick grass? It depends on the model. The Greenworks, KOMASTY and RYOBI pages give high-speed motors suited to tall grass, but the Ohey page says its tool is not for cutting thick material. Test the tool on your own grass before you buy extra batteries.
Should I buy a tool-only model or a kit? Buy tool-only if you already own a compatible battery and charger. Buy a kit if you need a complete setup. Add up the cost of the battery and charger before deciding.
Which trimmer converts to an edger? Most of the trimmers and edgers here do, including the WORX WG163, WORX WG170.9, RAXONE, SHOHO and Houselife entries. Check the head and the wheel set on each page.
What line size do I need? Check the head on your tool. The pages list 0.065-inch, 0.080-inch and 0.11-inch line, and the DEWALT page notes it accepts 0.095-inch line too.
Is the Gonine charger a trimmer? No. It is a replacement battery charger for Black+Decker 20V MAX and 12V MAX tools. Do not buy it as a trimmer.
Does a combo kit save money? A combo with a blower adds a second tool for the same battery platform. It makes sense if you need a blower for leaves and clippings, and it does not replace a trimmer you already own.
