Choosing String Trimmers in 2026: The Specs That Matter and 8 Picks

Key Specs for String Trimmers

Voltage and Power Source

Voltage indicates the electrical potential available to drive the motor. Higher voltage generally means more torque and sustained power for thick grass. Most cordless models in this guide range from 20V to 60V. The 20V WORX kit offers versatility with multiple tools but less raw power. The 60V Greenworks system provides stronger performance for tougher weeds. You should match the voltage to your yard size and grass density. Lower voltage units may struggle with dense growth. Higher voltage units often come with heavier batteries. Choose a system that aligns with your existing battery ecosystem to save money and reduce clutter.

Look for

• Check the voltage rating on the label
• Verify battery compatibility with other tools

Cutting Width

The cutting width determines how much grass you can trim in a single pass. Wider decks cover more ground but can be harder to maneuver in tight spaces. The EGO Power+ attachment offers a wide 16-inch swath for fast work. Standard models like the EGO 15-inch trimmer provide a balanced approach for most yards. Smaller 12-inch or 13-inch options, such as the Greenworks 40V models, are better for edges and tight spots. A wider cut reduces the number of passes needed but increases weight and bulk. You should select a width that matches your typical trimming tasks and storage constraints.

Look for

• Measure the maximum cutting diameter
• Ensure it fits your storage space

Weight and Balance

Weight affects comfort during extended use. Heavier tools can cause fatigue in your arms and shoulders. The EGO 16-inch attachment is lightweight at 3.4 pounds, making it easy to handle. However, full kits like the WORX 3-in-1 weigh 17.7 pounds due to multiple tools. The Greenworks 40V 13-inch trimmer weighs 9.92 pounds, offering a middle ground. You should consider the total weight including the battery. A lighter unit is easier to control around obstacles. Heavier units may provide more stability but require more effort. Check the weight distribution to ensure the tool feels balanced in your hands.

Look for

• Check the total weight with battery
• Look for a balanced center of gravity

Shaft Material and Build

The shaft material impacts durability and weight. Carbon fiber shafts are lightweight and resistant to corrosion. The WORX 40V 15-inch trimmer features a carbon fiber shaft for extended use. Steel shafts are durable but heavier. The EGO Power+ models use sturdy construction for reliable performance. You should choose a material that suits your maintenance habits. Carbon fiber reduces fatigue but can be more expensive. Steel offers robust protection against impacts. Consider the build quality of the connection points between the shaft and head. A solid build prevents rattling and ensures consistent cutting performance over time.

Look for

• Identify the shaft material type
• Inspect connection points for sturdiness

Battery Capacity and Runtime

Battery capacity, measured in amp-hours, determines how long the tool runs on a single charge. Higher capacity batteries last longer but add weight. The Greenworks 60V combo includes 4.0 Ah batteries for extended runtime. The EGO 15-inch trimmer uses a 2.5 Ah battery, which is sufficient for standard tasks. The Greenworks 40V 12-inch combo comes with a 2.0 Ah battery. You should match the capacity to your yard size. Larger yards require higher capacity to avoid mid-job recharging. Smaller yards may only need lower capacity units. Check if the battery is included in the kit price.

Look for

• Check the amp-hour rating
• Verify if the battery is included

Multi-Tool Versatility

Some kits include multiple attachments to save space and money. The WORX 20V kit combines a trimmer, hedge trimmer, and blower. The Greenworks 40V and 60V combos also offer additional tools. This approach is ideal for users who want a unified system. You can share batteries across different tools. However, multi-tool kits may have lower individual tool performance compared to dedicated units. The EGO Power+ attachment is a standalone tool for existing systems. You should decide if versatility or dedicated power is more important for your needs.

Look for

• List included tool attachments
• Check shared battery compatibility

Drive Type and Maneuverability

Drive type refers to how the tool moves or is propelled. Most string trimmers are handheld and do not have a drive system. The Greenworks 60V mower is a push deck, which is not a string trimmer. String trimmers rely on user movement. You should consider the length and flexibility of the shaft. Telescopic shafts, like the EGO 15-inch model, allow height adjustment for comfort. A longer shaft helps reach tall grass without bending. A shorter shaft offers better control in tight spaces. Ensure the tool allows for easy maneuvering around trees and flower beds.

Look for

• Check for telescopic shaft options
• Verify shaft length adjustability

Types of Cordless String Trimmers

Standalone trimmers

These units operate independently with their own battery and handle. The EGO Power+ 15-Inch Cordless String Trimmer (ST1502SA) features a 56V brushless motor and weighs 7.4 pounds. It offers a 15-inch cutting width. This configuration suits users who prioritize a lightweight design and easy line reloading for standard maintenance tasks. The trade-off is that you need to carry a separate battery for this single tool, rather than sharing across multiple devices.

Multi-tool kits

Bundles combine a trimmer with other attachments like hedge trimmers or blowers. The WORX WG931 20V 3-in-1 Kit includes a trimmer, hedge trimmer, and blower. It weighs 17.7 pounds total. This kit fits users who want trim, hedge, and blow functions with one battery. The Greenworks 40V 12-Inch Trimmer and Blower Combo is another option. These kits offer versatility over raw power. The main trade-off is that individual tools may have narrower cutting paths compared to dedicated standalone models.

Attachment heads

These are specialized heads that connect to existing power heads. The EGO Power+ 16-Inch Carbon Fiber Trimmer Attachment (STA1600) weighs only 3.4 pounds. It provides a 16-inch cutting swath. This attachment adds wide-path trimming capability to your existing EGO system. It is ideal for owners of multi-head power heads. You do not need a separate motor. The trade-off is limited use; this tool only works with compatible EGO power heads and cannot function as a standalone unit.

Common String Trimmer Buying Mistakes

Choosing low voltage for heavy duty work

Buying a 20V model for heavy brush. Lower voltage motors struggle with thick weeds and lack sustained torque. Choose a 56V or higher system if you have dense vegetation. Higher voltage ensures the motor maintains speed under load without bogging down.

Overlooking the weight of the trimmer head

Ignoring weight when trimming overhead or for long periods. A heavy unit causes arm fatigue quickly. Check the weight specification carefully. Lighter models under eight pounds reduce strain. This matters most for users with smaller yards or limited upper body strength.

Picking the widest cutting width available

Assuming a wider cutting path always means faster work. A wider deck requires more power to maintain blade speed. If your mower lacks torque, a wide cut slows down. Match cutting width to your motor power. Smaller widths often cut cleaner.

Not checking battery platform compatibility first

Forgetting to check battery compatibility with existing tools. Different brands use proprietary battery systems. You cannot swap batteries between incompatible brands. Ensure your new mower uses the same battery platform as your other garden tools. This saves money on extra packs.

Quick picks

Our 8 picks

1

EGO Power+ 16-Inch Carbon Fiber Trimmer Attachment

Best for: EGO multi-head power head owners

Cutting Swath

16 in.

Shaft Type

carbon fiber

Line Feed System

POWERLOAD

Cutting Width

16-Inch

Dimensions

39.5 × 7.36 × 5 inches

Weight

3.4 pounds

View on Amazon: EGO Power+ 16-Inch Carbon Fiber Trimmer Attachment

This is a string trimmer attachment for the EGO multi-head system. It gives you a 16-inch cutting swath, a 3.4-pound weight, and a carbon fiber shaft. It uses 0.095-inch spiral-twist dual line and carries an IPX4 weather-resistance rating. It fits your existing PH1400 or PH1420 power head, making it suitable if you already own compatible EGO gear.

Pros

• 16-inch cutting swath
• Lightweight 3.4-pound tool weight
• Carbon fiber shaft with lifetime warranty
• IPX4 weather-resistant build

Cons

• Requires an EGO PH1400 or PH1420 power head sold separately
• POWERLOAD push-button feeding only works with the PH1420 power head

Good fit if

• You own an EGO PH1400 or PH1420 power head.
• You want a wide 16-inch cutting path with 0.095-inch line.

Skip if

• You need a standalone trimmer without buying a separate power head.
• You use a PH1400 power head and want push-button line feeding.

Verdict: EGO Power+ 16-Inch Carbon Fiber Trimmer Attachment works for owners of EGO multi-head power heads who want a 16-inch cutting swath. Its 3.4-pound weight and carbon fiber shaft add wide-path trimming capability to your existing system.

2

WORX WG931 20V 3-in-1 Kit

Best for: Users wanting trim, hedge, and blower in one kit

Voltage

20V

Cutting Swath

12 in

Power Source

battery

Line Feed System

command feed

Cutting Width

22-Inch

Dimensions

36.3 × 7.5 × 5.5 inches

View on Amazon: WORX WG931 20V 3-in-1 Kit

This WORX kit combines a 12-inch trimmer, a 22-inch hedge trimmer, and a 360 CFM blower into one 20V system. The trimmer uses command feed line and converts to a wheeled edger. You get three tools from a single battery platform. It suits users who want to trim, hedge, and blow leaves without buying separate devices. The 17.7-pound weight covers all three functions.

Pros

• Includes a 12-inch string trimmer with command feed
• Converts to a wheeled edger in seconds
• Features a 22-inch hedge trimmer with dual-action blades
• Provides a 360 CFM turbine blower rated at 75 MPH
• Uses one 20V battery for all three tools

Cons

• 20V voltage is lower than the 40V systems in other picks
• 12-inch cutting swath is narrower than the 15-16 inch options elsewhere
• Kit weighs 17.7 pounds, adding bulk compared to single tools

Good fit if

• You want to trim, hedge, and blow leaves with one battery
• You prefer a wheeled edger for clean borders
• You already own other 20V WORX tools

Skip if

• You need a wider 15-inch or larger cutting swath
• You prefer a higher voltage 40V system for more power
• You only need a trimmer and do not want extra tools

Verdict: WORX 20V 3-Tool Garden Kit is a practical bundle for users who want to trim, hedge, and blow leaves with one battery. It fits those who value versatility over raw power or a wider cutting path.

3

EGO Power+ 15-Inch Cordless String Trimmer

Best for: Standard yard maintenance and line reloading

Voltage

56V

Cutting Swath

15-inch

Power Source

battery

Motor Type

brushless

Line Feed System

Rapid Reload

Battery Capacity

2.5Ah

View on Amazon: EGO Power+ 15-Inch Cordless String Trimmer

The EGO Power+ ST1502SA is a 56V cordless string trimmer with a 15-inch cutting swath. It uses a 2.5Ah battery for up to 45 minutes of runtime. The brushless motor offers low vibration and reliability. A Rapid Reload head simplifies line changes. Variable speed controls let you match power to the task. It includes a charger and charges in 50 minutes. This tool suits users needing a lightweight, reliable trimmer for standard yard work.

Pros

• 56V brushless motor for efficiency
• 15-inch cutting width
• Rapid Reload line head
• Up to 45 minutes runtime
• 50-minute fast charging

Cons

• 2.5Ah battery offers less runtime than higher capacity options
• No variable speed trigger mentioned in data
• Not a combo kit with blower or hedge trimmer

Good fit if

• You want a lightweight 7.4-pound trimmer
• You prefer a 15-inch cutting swath
• You already use EGO 56V batteries

Skip if

• You need a blower or hedge trimmer attachment
• You require more than 45 minutes of continuous runtime
• You prefer a wider 16-inch cutting path

Verdict: The EGO Power+ 15-Inch Cordless Trimmer delivers reliable performance with its 56V brushless motor and quick-charging battery. It fits users who prioritize a lightweight design and easy line reloading for standard maintenance tasks.

4

Greenworks 40V 12-Inch Trimmer and Blower Combo

Best for: clearing edges and debris from hard surfaces

Voltage

40V

Cutting Swath

12 in

Power Source

battery

Line Feed System

auto-feed

Battery Capacity

2.0Ah

Cutting Width

12-Inch

View on Amazon: Greenworks 40V 12-Inch Trimmer and Blower Combo

This Greenworks kit pairs a 40V string trimmer with a 390 CFM blower, both powered by a 2.0 Ah battery. The 12-inch cutting swath and auto-feed line system handle edges and light brush. Weighing 16.5 pounds, the balanced design reduces fatigue during extended use. The 67 dB noise level allows for early morning work. This combo suits users who want to clear walkways and driveways efficiently with a single power source.

Pros

• 40V battery system supports multiple tools in the ecosystem
• 390 CFM blower clears wet leaves and debris
• Auto-feed line system maintains cutting speed
• 12-inch cutting width covers moderate areas
• 67 dB operation level for quieter use

Cons

• 2.0 Ah battery provides limited runtime for larger jobs
• 12-inch cutting swath is narrower than some competitors
• Heavier than gas alternatives due to battery weight

Good fit if

• You need to clear edges along driveways and walkways
• You want to use one battery for multiple garden tools
• You prefer a quieter operation for early morning cleanup

Skip if

• You require a wider cutting swath for thick brush
• You need longer runtime without swapping batteries
• You are looking for a standalone trimmer without a blower

Verdict: Greenworks 40V 12" String Trimmer & Blower Combo is a practical choice for homeowners who value versatility and quiet operation for maintaining edges and clearing debris from hard surfaces.

5

Greenworks 60V 13-Inch Trimmer 3-Tool Combo

Best for: small lawns needing a 60V yard system

Voltage

60V

Cutting Swath

13 in

Power Source

battery

Line Feed System

bump feed

Battery Capacity

4.0Ah, 5.0Ah

Cutting Width

13-Inch

View on Amazon: Greenworks 60V 13-Inch Trimmer 3-Tool Combo

This Greenworks kit pairs a 13-inch string trimmer with a 21-inch mower and blower on a 60V platform. It includes two batteries with 4.0Ah and 5.0Ah capacities. The dual-line bump feed handles weeds along edges. You get a steel deck on the mower and a blower for cleanup. The system supports over 75 compatible tools for a complete yard setup.

Pros

• 60V battery platform for fade-free power
• 13-inch cutting path with dual-line bump feed
• Includes 4.0Ah and 5.0Ah batteries
• Dual-port auto-switch tech for extended runtime
• Compatible with 75+ Greenworks 60V tools

Cons

• 13-inch cutting width is narrower than 15-inch or 16-inch competitors
• Push drive type requires more physical effort than self-propelled models
• Battery capacity is lower than the 5.0Ah or higher options available in other kits

Good fit if

• You need a complete yard system with mower, trimmer, and blower
• You already own other Greenworks 60V tools
• You prefer a push mower for smaller, flat lawns

Skip if

• You require a self-propelled mower for hilly terrain
• You need a wider 15-inch or 16-inch trimmer head
• You want a lighter 20V or 40V system

Verdict: Greenworks 60V 13" String Trimmer suits users who want a unified 60V ecosystem with a mower, trimmer, and blower. It fits those with smaller, flat lawns who do not mind a push deck and a narrower trimmer width. It is less ideal if you need self-propulsion or a wider cutting swath.

6

WORX 40V 15-Inch Trimmer and Blower Combo

Best for: Medium to large yards needing trim and blow

Voltage

40V

Cutting Swath

15 in

Power Source

battery

Shaft Type

carbon fiber

Cutting Width

15-Inch

Dimensions

12.4 × 8.62 × 38.4 inches

View on Amazon: WORX 40V 15-Inch Trimmer and Blower Combo

This kit pairs a 40V cordless string trimmer with a 530 CFM leaf blower. The 15-inch cutting swath handles medium to large yards, while the carbon fiber shaft reduces weight for better balance. It operates at 57 dB for quieter use. The system uses the PowerShare battery platform, allowing you to mix 20V, 40V, or 80V batteries across tools. It includes two batteries and a dual charger.

Pros

• 15-inch cutting swath for efficient coverage
• Carbon fiber shaft for improved balance and control
• 530 CFM blower airflow for heavy debris
• Quiet operation at 57 dB
• Compatible with WORX PowerShare battery system

Cons

• Heavier at 20 pounds compared to lighter single tools
• Larger overall dimensions may be bulky for small storage spaces
• No adjustable handle or telescoping shaft mentioned for varied user heights

Good fit if

• You need a two-in-one tool for trimming and blowing
• You already own WORX PowerShare batteries
• You have medium to large yards with heavy debris

Skip if

• You prefer a lightweight, single-purpose string trimmer
• You have very small storage areas with limited space
• You require a telescoping shaft for height adjustment

Verdict: WORX 40V 15" Trimmer & Blower Kit fits homeowners who want to clear debris and trim grass with one battery system. The carbon fiber shaft and quiet motor make it suitable for extended use in medium to large yards.

7

Greenworks 40V 13-Inch Cordless String Trimmer

Best for: small lawns and tight spaces

Voltage

40V

Cutting Swath

13 in

Power Source

battery

Shaft Type

telescoping

Battery Capacity

2.0Ah

Cutting Width

13-Inch

View on Amazon: Greenworks 40V 13-Inch Cordless String Trimmer

This Greenworks 40V string trimmer features a 13-inch cutting swath and a 2.0 Ah battery. It includes a telescoping shaft that adjusts from 40 to 52 inches and a pivoting head with seven positions. The unit weighs 9.92 pounds and operates at 78 dB. It converts to an edger in three clicks. This model suits users who need a lightweight tool for small to medium lawns.

Pros

• 13-inch cutting width for efficient grass trimming
• Telescoping shaft adjusts to 52 inches for tall users
• Seven-position pivoting head for detailed edging and under-deck work
• Lightweight 9.92-pound design reduces fatigue

Cons

• 2.0 Ah battery capacity is smaller than competitors
• 13-inch cutting swath is narrower than 15-inch or 16-inch models
• 78 dB noise level may be too loud for strict HOA rules

Good fit if

• You have a small lawn under 1/4 acre
• You need to trim under decks or fences
• You want a tool that converts to an edger

Skip if

• You have a large property requiring extended runtime
• You need a wider 15-inch or 16-inch cutting path
• You require a high-capacity battery for heavy use

Verdict: Greenworks 40V 13in Cordless Trimmer is a compact option for light-duty tasks. It fits users with small yards who value maneuverability over cutting width.

8

EGO Power+ 15-Inch Telescopic String Trimmer

Best for: Users with existing EGO 56V batteries

Voltage

56V

Cutting Swath

15 in

Power Source

Battery

Motor Type

Brushless

Shaft Type

Telescopic aluminum

Line Feed System

Bump feed

View on Amazon: EGO Power+ 15-Inch Telescopic String Trimmer

This EGO Power+ trimmer uses a 56V brushless motor to deliver up to 45 minutes of runtime with a 2.5Ah battery. It features a 15-inch cutting swath and a telescopic aluminum shaft for adjustable comfort. The patented PowerLoad system simplifies line refilling. It is suitable for users who want durable, weather-resistant equipment with efficient line management for standard yard maintenance.

Pros

• Patented PowerLoad technology for quick line refills
• Telescopic aluminum shaft for adjustable height
• Brushless motor for long runtime and low vibration
• 15-inch cutting swath with dual line spiral-twist

Cons

• Battery and charger are not included
• Bump feed system requires manual tapping to advance line
• 7.4-pound weight may cause fatigue during extended use

Good fit if

• You want a durable, weather-resistant trimmer for regular use
• You prefer easy line refilling with the PowerLoad system
• You need an adjustable shaft for comfort

Skip if

• You need a battery and charger included in the box
• You prefer an automatic line feed system
• You want a lighter tool for extended overhead work

Verdict: EGO Power+ 15" Cordless String Trimmer is a solid choice for users who value durable construction and easy line management. It fits those who already own EGO 56V batteries and want a reliable tool for standard yard maintenance.

Specifications side by side

Frequently asked questions

See also

• best lawn mowers under 150
• best lawn mowers under 200
• rangefinder buying guide
• dresser buying guide