6 Best 3-in-1 String Trimmers, Compared
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
Choosing the best 3-in-1 string trimmers requires looking at hard specs. We compared 6 models based on the data published in their listings. The Wild Badger Power 26cc 17-Inch Gas String Trimmer leads because its 17-inch cutting width handles thick weeds and brush cutting better than any other option. This guide helps you decide which tool matches your yard size and vegetation type. You will see how battery capacity, weight, and motor type affect daily use. Focus on the numbers that matter for your specific lawn care needs.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Wild Badger Power 26cc 17-Inch Gas String Trimmer Best overall | thick weeds and brush cutting | Check price of Wild Badger Power 26cc 17-Inch Gas String Trimmer on Amazon |
| 2 | iToolMax 6" 3-in-1 Cordless Trimmer Also great | small yards and seniors | Check price of iToolMax 6" 3-in-1 Cordless Trimmer on Amazon |
| 3 | BLACK+DECKER 12-Inch 20V Max 3-in-1 Trimmer Best premium | Versatile lawn care with extended battery life | Check price of BLACK+DECKER 12-Inch 20V Max 3-in-1 Trimmer on Amazon |
| 4 | BLACK+DECKER 12-Inch 20V MAX 3-in-1 Trimmer Also great | small lawns needing trim, edge, and mow | Check price of BLACK+DECKER 12-Inch 20V MAX 3-in-1 Trimmer on Amazon |
| 5 | Worx 20V 13-Inch Cordless Trimmer and Edger Best 20v | precise edging and slope navigation | Check price of Worx 20V 13-Inch Cordless Trimmer and Edger on Amazon |
| 6 | AMERISUN 16-Inch 26cc Gas String Trimmer Best budget | clearing dense vegetation with a wide swath | Check price of AMERISUN 16-Inch 26cc Gas String Trimmer on Amazon |
The best fit for you
- You need to cut through thick weeds and brush Wild Badger Power 26cc 17-Inch Gas String Trimmer The 26cc gas engine provides the robust power needed for heavy vegetation.
- You want the most compact and lightweight model iToolMax 6" 3-in-1 Cordless Trimmer Weighing only 4.4 pounds, this unit is ideal for users prioritizing lightweight handling.
- You need precise edging and slope navigation Worx 20V 13-Inch Cordless Trimmer and Edger Its pivoting head and brushless motor allow for detailed lawn borders and slopes.
- You want to clear dense vegetation with a wide swath AMERISUN 16-Inch 26cc Gas String Trimmer The 16-inch cutting width offers the largest swath on this list.
Our 6 picks
Wild Badger Power 26cc 17-Inch Gas String Trimmer
Best for: thick weeds and brush cutting
- Mowing Function
- 3-in-1 (what this guide is about)
- Cutting Swath
- 17-inch
- Power Source
- gas
- Voltage
- 26cc
- Dimensions
- 11.2 × 11 × 45 inches
- Weight
- 12 pounds
View on Amazon: Wild Badger Power 26cc 17-Inch Gas String Trimmer Affiliate link
This 3-in-1 gas string trimmer combines a 17-inch cutting swath with a 10-inch brush cutter blade. The 26cc two-cycle engine provides reliable power for thick vegetation. Weighing 12 pounds, it includes a shoulder strap and rubber handle for control. It features easy start capability and tool-free air filter access. This model suits users needing heavy-duty yard care.
Pros
- 26cc gas engine for thick brush
- 17-inch string trimmer and 10-inch brush cutter
- Easy start within five pulls
- Tool-free air filter access
Cons
- Gas powered requires fuel mixing
- Heavier at 12 pounds
- No electric start option listed
Good fit if
- You need to cut thick weeds
- You prefer gas engine power
- You want a brush cutter attachment
Skip if
- You prefer cordless electric tools
- You want a lightweight trimmer
- You need electric start capability
Verdict: Wild Badger Power 26cc Gas Trimmer offers robust gas power for heavy vegetation. It fits users managing thick weeds who do not mind mixing fuel.
iToolMax 6" 3-in-1 Cordless Trimmer
Best for: small yards and seniors
- Mowing Function
- 3-in-1 (what this guide is about)
- Cutting Swath
- 6 inches
- Power Source
- battery
- Shaft Type
- telescopic
- Battery Capacity
- 2.0Ah
- Application
- Yard, Garden, Lawn
View on Amazon: iToolMax 6" 3-in-1 Cordless Trimmer Affiliate link
The iToolMax GARDEN31 is a 3-in-1 cordless string trimmer, edger, and mower. It weighs 4.4 pounds and features a 6-inch cutting width. The unit includes two 2.0Ah batteries for 30–40 minutes of runtime. Its telescopic pole adjusts from 36 to 50 inches. This lightweight design suits users seeking reduced physical strain during yard work.
Pros
- Weighs only 4.4 pounds for easy handling
- Includes two 2.0Ah lithium batteries
- Telescopic pole adjusts from 36 to 50 inches
- Operates at 72 decibels for low noise
Cons
- 6-inch cutting width is narrow compared to competitors
- Battery runtime is limited to 30–40 minutes
- No display or battery level indicator mentioned
Good fit if
- You need a lightweight tool for seniors
- You want to switch between trimming and edging
- You prefer quiet operation under 75 decibels
Skip if
- You require a wide cutting deck for large yards
- You need extended runtime beyond 40 minutes
- You prefer gas-powered tools for heavy brush
Verdict: The iToolMax 6" Cordless 3-in-1 Trimmer is a compact, quiet option for small lawns. It fits users who prioritize lightweight handling and adjustable height over wide cutting capacity.
BLACK+DECKER 12-Inch 20V Max 3-in-1 Trimmer
Best for: Versatile lawn care with extended battery life
- Mowing Function
- 3-in-1 (what this guide is about)
- Voltage
- 20V MAX
- Cutting Swath
- 12 in
- Power Source
- battery
- Battery Capacity
- 4.0 Ah
- Cutting Width
- 12-Inch
View on Amazon: BLACK+DECKER 12-Inch 20V Max 3-in-1 Trimmer Affiliate link
This BLACK+DECKER tool converts from a mower to a string trimmer and edger. It uses a 20V MAX battery with 4.0 Ah capacity, offering twice the runtime of standard 2.0 Ah packs. The 12-inch cutting swath is compact for tight spaces. It includes two batteries for extended use and features an adjustable height deck. This setup suits users who need versatile lawn care tools with reliable power for moderate tasks.
Pros
- Includes two 4.0 Ah batteries for extended runtime
- Converts easily between mower, trimmer, and edger modes
- Adjustable height deck and pivoting handle for maneuverability
- 20V MAX system provides consistent power for lawn tasks
Cons
- 12-inch cutting width is narrower than larger mowers
- 2.5-hour charge time is slower than fast-charging options
- 4.0 Ah battery is heavier than 2.0 Ah alternatives
Good fit if
- You want a single tool for mowing, trimming, and edging
- You need extra runtime for larger lawns
- You prefer adjustable cutting heights for varied terrain
Skip if
- You require a wide cutting deck for quick coverage
- You need rapid charging between sessions
- You prefer lightweight tools for extended overhead use
Verdict: BLACK+DECKER 12-Inch 3-in-1 Mower is ideal for homeowners who value versatility and extended battery life over maximum cutting width. It fits users who want to switch between mowing, trimming, and edging without buying separate devices.
BLACK+DECKER 12-Inch 20V MAX 3-in-1 Trimmer
Best for: small lawns needing trim, edge, and mow
- Mowing Function
- 3-in-1 (what this guide is about)
- Voltage
- 20V MAX
- Cutting Swath
- 12 in
- Battery Capacity
- 1.5Ah
- Application
- Lawn
View on Amazon: BLACK+DECKER 12-Inch 20V MAX 3-in-1 Trimmer Affiliate link
This BLACK+DECKER tool is a 3-in-1 unit that converts from a string trimmer to a wheeled edger and a 12-inch mower. It runs on 20V MAX power with a 1.5Ah battery. The Power Drive Transmission increases torque for better cutting performance. You can adjust the deck height for ideal results. It suits users who want one device for trimming, edging, and mowing small to medium lawns.
Pros
- Converts from trimmer to wheeled edger
- Power Drive Transmission for increased torque
- 3 tools in 1 with 12-inch mower deck
- Adjustable 2 height adjustment deck
Cons
- 12-inch cutting swath is smaller than competitors
- 1.5Ah battery capacity is lower than typical kits
- No remote or smart app connectivity listed
Good fit if
- You want a single tool for trim, edge, and mow
- You have a small lawn under 1/4 acre
- You prefer manual height adjustments over complex settings
Skip if
- You need a wide cutting swath over 12 inches
- You require a high-capacity battery for long runtime
- You want to mow large or uneven terrain
Verdict: BLACK+DECKER 20V 12-inch 3-in-1 is a compact option for users with small yards who value versatility over cutting width and battery life.
Worx 20V 13-Inch Cordless Trimmer and Edger
Best for: precise edging and slope navigation
- Mowing Function
- 3-in-1 (what this guide is about)
- Voltage
- 20V
- Cutting Swath
- 13 in
- Power Source
- battery
- Motor Type
- brushless
- Shaft Type
- telescopic
View on Amazon: Worx 20V 13-Inch Cordless Trimmer and Edger Affiliate link
The WORX WG173 is a 20V cordless 3-in-1 string trimmer, edger, and mini mower with a 13-inch cutting swath. It uses a brushless motor and a 4.0Ah battery for sustained power. The pivoting head and dual edging wheels help you navigate slopes and edges. An electronic push-button line feed saves time. This model suits users who want gas-like performance without the maintenance.
Pros
- Brushless motor delivers high torque without slowing in thick weeds.
- 13-inch dual-line head provides a wide cutting swath.
- Electronic push-button line feed eliminates manual bumping.
- 90-degree pivoting head adapts to uneven terrain.
Cons
- 13-inch cutting width is narrower than some gas competitors.
- Single battery included may limit runtime on large yards.
- Mini mower function is less capable than full-sized mowers.
Good fit if
- You need a lightweight tool for slopes and edges.
- You want zero string waste with instant line feed.
- You already own WORX 20V Power Share batteries.
Skip if
- You require a cutting width wider than 13 inches.
- You prefer gas power for heavy-duty commercial work.
- You need a full-sized mower deck for large areas.
Verdict: WORX 13-Inch 20V 3-in-1 Trimmer fits users who value precise edging and low maintenance over raw cutting width. Its brushless motor and pivoting head make it ideal for detailed lawn borders and slopes.
AMERISUN 16-Inch 26cc Gas String Trimmer
Best for: clearing dense vegetation with a wide swath
- Mowing Function
- 3-in-1 (what this guide is about)
- Cutting Swath
- 16"
- Power Source
- gas
- Voltage
- 26cc
- Cutting Width
- 16-Inch
- Application
- Yard, Garden
View on Amazon: AMERISUN 16-Inch 26cc Gas String Trimmer Affiliate link
The AMERISUN 26cc gas string trimmer offers a 16-inch cutting swath, making it the widest option in this list. It switches between a brush cutter, trimmer, and edger. The 19.1-pound weight includes a shoulder strap for portability. You get a fast-start pull system and a 10-inch metal blade for thick overgrowth. This gas model suits users needing power and reach without battery constraints.
Pros
- 16-inch cutting swath for wider coverage
- 26cc air-cooled 2-cycle engine for high torque
- Switches between brush cutter, trimmer, and edger
- Includes shoulder strap and rubber handle for comfort
Cons
- Heavier at 19.1 pounds compared to cordless options
- Requires gas mixing and engine maintenance
- 10-inch blade limits cutting width in brush cutter mode
Good fit if
- You need the widest 16-inch cutting swath available
- You prefer gas power for heavy-duty brush cutting
- You want a tool that handles thick overgrowth
Skip if
- You prefer lightweight cordless electric tools
- You want zero emissions or noise
- You need a battery-powered system for quiet operation
Verdict: AMERISUN 16-inch 26cc Gas Trimmer delivers the largest cutting width on this list. It fits users who prioritize raw power and a wide swath for clearing dense vegetation.
Specifications side by side
| Spec | Wild Badger Power 26cc 17-Inch Gas String Trimmer | iToolMax 6" 3-in-1 Cordless Trimmer | BLACK+DECKER 12-Inch 20V Max 3-in-1 Trimmer | BLACK+DECKER 12-Inch 20V MAX 3-in-1 Trimmer | Worx 20V 13-Inch Cordless Trimmer and Edger | AMERISUN 16-Inch 26cc Gas String Trimmer |
|---|---|---|---|---|---|---|
| Voltage | not stated | not stated | 20V MAX | 20V MAX | 20V | not stated |
| Cutting Swath | 17-inch | 6 inches | 12 in | 12 in | 13 in | 16" |
| Power Source | gas | battery | battery | not stated | battery | gas |
| Motor Type | not stated | not stated | not stated | not stated | brushless | not stated |
| Shaft Type | not stated | telescopic | not stated | not stated | telescopic | not stated |
| Line Feed System | not stated | not stated | not stated | not stated | push-button | not stated |
| Battery Capacity | not stated | 2.0Ah | 4.0 Ah | 1.5Ah | 4.0Ah | not stated |
| Cutting Width | not stated | not stated | 12-Inch | not stated | 13-Inch | 16-Inch |
| Mowing Function | 3-in-1 | 3-in-1 | 3-in-1 | 3-in-1 | 3-in-1 | 3-in-1 |
| Application | not stated | Yard, Garden, Lawn | Lawn | Lawn | Lawn | Yard, Garden |
| Size | 17-Inch | 6" Cordless Foldable (2.0Ah) | 12 inches | 12 inches | No Size | 16 inches |
| Dimensions | 11.2 × 11 × 45 inches | 47 × 6 × 5 inches | not stated | not stated | 43.1 × 35.6 × 5 inches | 73.6 × 15 × 5 inches |
| Weight | 12 pounds | 4.4 pounds | not stated | not stated | 6.62 pounds | 19.1 pounds |
| Color | Blue | Green | multi-color | Black | Black and Orange | Black+Red |
| Model | WB26BCI | GARDEN31 | not stated | LSTE525 & MTD100 | WG173 | AM4532 |
Key Specs to Check First
-
Check Cutting Width
The cutting width determines how much ground you cover per pass. A wider deck reduces the time needed for large areas. The AMERISUN 16-inch model offers a broad swath for dense vegetation. Smaller units like the iToolMax 6-inch are better for tight corners. Match the width to your yard size. Wider decks require more power to maintain speed. Narrower decks offer better maneuverability in cluttered spaces. Choose based on your primary cutting needs.
-
Select Power Source
Power source affects maintenance and weight. Gas models deliver high torque for tough jobs. The Wild Badger Power 26cc handles thick weeds without battery anxiety. However, you must mix fuel and manage emissions. Cordless units offer quiet operation and zero emissions. The iToolMax and WORX options are lighter and easier to store. Cordless models require charging time. Gas models need engine upkeep. Pick the source that fits your maintenance comfort.
-
Review Battery Capacity
Battery capacity dictates runtime for cordless models. Higher amp-hour ratings provide longer continuous use. The WORX 20V includes a 4.0 Ah battery for extended work. The iToolMax uses a 2.0 Ah pack, suitable for small yards. Larger batteries add weight to the unit. Check if the battery is included or sold separately. Ensure the voltage matches your tool ecosystem. More capacity means fewer interruptions for recharging. It is critical for larger properties.
-
Consider Unit Weight
Weight impacts handling comfort and fatigue. Lighter tools are easier to maneuver for extended periods. The iToolMax weighs only 4.4 pounds, making it ideal for seniors. Heavier gas models like the AMERISUN weigh over 19 pounds. This weight provides stability but increases user strain. Consider your physical strength and yard layout. A lighter unit reduces back and arm strain. Heavier units may offer more durability. Balance weight with required power output.
-
Verify Mowing Function
The 3-in-1 function allows switching between trimming, edging, and mowing. This versatility replaces multiple tools. The BLACK+DECKER 12-inch model supports all three modes. Ensure the mechanism allows quick transitions. Some models may require tool changes for mode switching. Check if the deck height adjusts for mowing. Edging capability helps maintain clean lawn borders. Trimming handles grass along fences. Verify all functions are included in your specific model. This saves storage space and cost.
Frequently asked questions
Which 3-in-1 string trimmer is best for thick weeds?
The Wild Badger Power 26cc Gas String Trimmer is the best choice for thick weeds and brush cutting. It features a 17-inch cutting width, which covers more ground per pass than most competitors. The 26cc gas engine provides the robust power needed to handle heavy vegetation that cordless models might struggle with.
What is the lightest 3-in-1 string trimmer available?
The iToolMax 6-inch Cordless 3-in-1 Trimmer is the lightest option at just 4.4 pounds. Its compact design makes it ideal for seniors or users managing small yards. You get a foldable unit that is easy to store and maneuver, prioritizing lightweight handling over wide cutting capacity.
Does the WORX trimmer have a brushless motor?
Yes, the WORX 20V 13-Inch Cordless Trimmer and Edger includes a brushless motor. This component offers precise edging and low maintenance compared to brushed alternatives. The pivoting head allows for detailed lawn borders and slope navigation, making it suitable for users who value precision over raw cutting width.
Which model has the largest cutting width?
The AMERISUN 16-Inch 26cc Gas String Trimmer has the largest cutting width on this list at 16 inches. It is designed for clearing dense vegetation with a wide swath. This gas-powered model delivers raw power, fitting users who prioritize coverage area and strength for tough outdoor jobs.
Are there cordless options with high battery capacity?
The BLACK+DECKER 12-Inch 20V Max 3-in-1 Trimmer and the WORX 20V model both offer 4.0 Ah battery capacity. This extended battery life supports longer runtime for versatile lawn care tasks. You can switch between mowing, trimming, and edging without needing to recharge frequently during smaller yard projects.
Which trimmer is best for precise edging?
The WORX 20V 13-Inch Cordless Trimmer and Edger is best for precise edging. Its pivoting head allows you to navigate slopes and create clean lawn borders. The 13-inch cutting width provides a balance of coverage and control, making it ideal for detailed work rather than just wide-area mowing.
Is there a compact trimmer for small yards?
The iToolMax 6-inch Cordless 3-in-1 Trimmer is the most compact option for small yards. Weighing only 4.4 pounds, it is easy to handle and store. This green, foldable unit is quiet and perfect for users who prioritize lightweight handling and adjustable height over maximum cutting width.
What power source does the Wild Badger Power trimmer use?
The Wild Badger Power 26cc Gas String Trimmer uses a gas power source. It requires mixing fuel, which some users may find less convenient than plugging in or charging. However, the 26cc engine delivers the raw strength needed for thick weeds and heavy brush cutting tasks.