The 7 Best String Trimmers

The WORX WG163 stands out as an excellent entry-level option for homeowners seeking a cordless trimming solution that doesn't require purchasing two separate tools. The 2-in-1 design genuinely delivers on versatility, with a tool-free conversion that takes seconds to accomplish. The Command Feed system is particularly useful for users who prefer manual control over when they deploy fresh line, eliminating the guesswork of automatic feed systems that may advance line when you don't need it.

Build quality reflects the price point well, with thoughtful design touches like the 90-degree tilting head and rubberized guidance wheels that improve cutting precision. At just 5.5 pounds, this trimmer remains comfortable to use even during longer yard work sessions, a significant advantage over heavier models. The inclusion of two 20V batteries and a charger means you can work continuously by swapping batteries, while the adjustable spacer guard provides genuine protection for landscape features and plantings.

The main limitation is the 12-inch cutting width, which works best for smaller properties or detail work on larger yards. If you have extensive trimming needs or prefer variable speed control, WORX's higher-end models in their lineup offer those features. For most residential properties and budget-conscious buyers, however, this model delivers reliable performance and excellent functionality at an attractive price.

Is This Right for You? The WG163 works best for homeowners with small to medium-sized yards (under 0.5 acres) who want a lightweight, affordable solution. It's ideal if you value convenience and want to avoid buying separate tools.

Yard Size Considerations The 12-inch cutting width is suitable for detail work and smaller properties. If you have extensive open areas to trim, consider stepping up to the 13-inch or 15-inch models in WORX's lineup for faster coverage.

Battery Life Tips Two batteries allow continuous work by swapping while one charges. Battery runtime varies by conditions, but expect 30-45 minutes per charge for typical residential use. Keep batteries charged and stored in cool conditions for longevity.

Command Feed Advantage Unlike automatic bump-feed systems, Command Feed requires you to press the button for line. This prevents wasting line and gives you precise control, though it requires conscious attention during use.

Power Share Compatibility Your batteries work with any WORX 20V or 40V Power Share tool, making this a smart foundation for building a cordless yard care ecosystem over time.

Value Winner: The WG163 offers the best overall value for budget-conscious buyers who want 2-in-1 functionality. You get two batteries and a charger for less than competitors charge for single-battery models. The WG173 offers a larger cutting width but costs 40% more and includes only one battery.

The EGO POWER+ ST1623T represents a significant leap forward in cordless trimmer technology, primarily due to its LINE IQ auto-sensing system. Unlike traditional bump-feed trimmers that require tapping the head on the ground to release new line, this trimmer monitors line length automatically and feeds precisely what you need. In practice, this means uninterrupted cutting and dramatically less downtime. The POWERLOAD technology complements this by making manual line replacement nearly effortless, a genuine quality-of-life improvement for regular users.

Build quality stands out immediately. The carbon fiber shaft is noticeably lighter and more rigid than aluminum alternatives found on competing models, and the lifetime warranty on the shaft underscores EGO's confidence in durability. The telescopic design allows quick adjustment for different user heights, and at 7.5 pounds, the trimmer feels balanced and manageable even during extended yard work. The 60-minute runtime from the included 4.0Ah battery proves sufficient for most residential properties, and the battery integrates seamlessly with EGO's broader 56V ecosystem if you own other tools.

The digital variable speed selector and brushless motor deliver smooth, consistent performance while keeping noise levels reasonable for a power tool. IPX4 weather resistance means light rain won't stop your trimming schedule. The 0.095-inch professional-grade dual-line cutting head produces a clean 16-inch swath, handling both delicate edging and tougher weeds effectively. This is a premium trimmer designed for homeowners who value convenience and performance enough to invest in quality.

LINE IQ vs. Traditional Bump-Feed: LINE IQ uses auto-sensing technology that continuously monitors line length and feeds new string automatically. Traditional bump-feed systems require you to tap the trimmer head on the ground to release pre-wound line. LINE IQ eliminates this step entirely, providing uninterrupted cutting and faster overall trimming time.

POWERLOAD vs. Manual Reload: POWERLOAD winds new line automatically when you insert it and press a button. Manual reload systems require you to wind the line by hand or use a separate tool. POWERLOAD reduces reload time from several minutes to just seconds, a meaningful advantage if you trim regularly.

Carbon Fiber vs. Aluminum Shafts: The ST1623T uses carbon fiber, which is lighter and more rigid than aluminum used on lower-tier EGO models. Carbon fiber reduces vibration, improves handling comfort, and provides superior durability. The lifetime warranty on this shaft reflects the material's longevity advantages.

60-Minute vs. 45-Minute Runtime: The included 4.0Ah battery provides 60 minutes of operation, compared to 45 minutes on models with 2.5Ah batteries. This extra 15 minutes of runtime means many homeowners can complete their entire yard without needing a second battery.

Is This Trimmer Right for You? The ST1623T works best for homeowners with quarter-acre to half-acre properties who trim regularly and value convenience. If you have a smaller yard and trim occasionally, consider whether the premium price justifies the advanced features. If you have a large property exceeding one acre, you may want multiple batteries.

Battery Ecosystem: This trimmer is compatible with all EGO 56V ARC Lithium batteries. If you own other EGO tools (mowers, blowers, chainsaws), batteries interchange freely, maximizing value. If this is your first EGO tool, the included battery and charger provide everything needed to start.

Setup Expectations: Assembly is straightforward but required. Budget 15-20 minutes for initial setup and battery charging. The battery requires 60 minutes to fully charge with the included 320W charger. Read the manual carefully to understand LINE IQ operation, as it functions differently from traditional trimmers.

Maintenance: Cordless trimmers require minimal maintenance compared to gas models. Store the battery in a cool, dry place and charge before extended storage. The trimmer head occasionally needs line inspection, but LINE IQ reduces how often you'll manually add line.

The BLACK+DECKER LST522 delivers practical value for homeowners seeking a single tool to handle both trimming and edging. The automatic line advancement system keeps you working without interruption, while the dual-speed transmission lets you prioritize power when tackling thicker weeds or extend runtime for broader yard coverage. The conversion between trimming and wheeled edging is straightforward, making this tool genuinely versatile for typical residential landscapes.

Battery performance is a standout feature. The included 2.5Ah extended-runtime battery offers 66% more capacity than standard models, which means most homeowners can complete average yard work on a single charge. The 20V MAX system compatibility also provides flexibility if you own other tools in this platform. At 5.7 pounds with adjustable height and a textured soft-grip handle, the trimmer remains manageable for extended use without excessive fatigue.

Realistic expectations matter here. The 12-inch cutting width is narrower than some alternatives, so larger properties may require more passes. The wheeled edger is functional but adds complexity compared to a dedicated string trimmer. For typical suburban yards and homeowners who value convenience and battery-powered operation over maximum power or cutting speed, this tool represents solid value and genuine 2-in-1 functionality.

Cutting Performance: The 12-inch cutting width and PowerDrive transmission handle typical residential grass and light brush effectively. Dual-speed control lets you boost torque for dense growth or extend battery life for general trimming on average lawns.

Battery Runtime: The extended-runtime battery provides approximately 30-45 minutes of runtime depending on speed setting and grass conditions. Most homeowners can complete typical yard maintenance without recharging, though larger properties or heavy growth may benefit from a second battery.

Trimmer vs. Edger Mode: The tool excels at both tasks, but switching between modes takes a minute. Use trimmer mode for open areas and edger mode for precise borders along walkways and driveways. The wheeled edger creates clean, professional-looking edges without the precision learning curve of handheld edging.

Best For: Homeowners with typical suburban yards (under one-half acre) who value convenience, battery-powered operation, and the simplicity of one tool handling multiple tasks.

Consider Alternatives If: You maintain a large property (over one acre) requiring extended runtime, prefer maximum cutting power for heavy brush, or need a wider cutting swath to reduce pass-over time.

System Compatibility: The 20V MAX battery works with other BLACK+DECKER tools in this platform, allowing you to build a cordless yard tool collection with shared batteries and chargers. This ecosystem approach can provide long-term value if you plan additional yard equipment purchases.

The EGO POWER+ ST1502SA represents a significant step forward in cordless yard maintenance technology. The standout feature is the Rapid-Reload head, which genuinely simplifies the frustrating task of reloading cutting line. Simply align the arrows, insert the line, and twist to lock it in place. No fumbling with alignment guides or dealing with tangled line. The brushless motor delivers smooth, vibration-free operation while maintaining professional-grade cutting power through its 0.095 inch dual-twist line and 15-inch cutting swath.

Battery performance is practical for typical residential use. The included 56V 2.5Ah battery provides approximately 50 minutes of runtime, which covers most standard yard cleanups without interruption. The variable speed control lets you dial back power for lighter trimming tasks, extending battery life when full power isn't necessary. Charging takes 50 minutes from empty to full, and the fan-cooled charging system prevents overheating during rapid recharge cycles. The IPX4 weather-resistant rating means you can work through light rain without concern.

From a value perspective, this trimmer checks multiple boxes for homeowners seeking to move away from gas-powered equipment. The 5-year tool warranty and 3-year battery warranty demonstrate manufacturer confidence in durability. The broader EGO ecosystem compatibility means you can invest in additional batteries or other tools and share power across your entire yard equipment collection. The 4.3-star rating across thousands of reviews reflects consistent real-world performance and user satisfaction.

Cutting Power - The 5800 RPM brushless motor combined with the 0.095 inch dual-twist line delivers professional-grade cutting performance. This setup handles dense weeds, thick grass, and light brush effectively across the full 15-inch swath.

Battery Life Strategy - The 50-minute runtime covers most residential yards. For larger properties or back-to-back yard work, consider purchasing an additional 2.5Ah or higher capacity battery. Switching batteries takes seconds, and all EGO batteries are interchangeable.

Variable Speed Benefits - Using lower speed settings for light trimming and edge work extends battery runtime significantly. Reserve full speed for thick weeds and dense growth where maximum power is needed.

Weather Conditions - The IPX4 rating handles light rain and morning dew without issues. Avoid submerging the motor head or prolonged heavy rain exposure. Dry the unit after wet conditions for longevity.

Maintenance Ease - The Rapid-Reload system eliminates the most time-consuming maintenance task. Regular inspection of the cutting line for damage and occasional cleaning of the intake vents keeps the motor running efficiently.

Who Should Buy This Trimmer - Homeowners with typical residential yards (up to 1 acre) seeking a cordless alternative to gas-powered equipment. Ideal if you value quiet operation, minimal maintenance, and ecosystem compatibility with other EGO tools.

Who Might Look Elsewhere - Users with large commercial properties may want higher capacity batteries or gas-powered options for all-day runtime. Those committed to a different battery ecosystem should verify compatibility before purchasing.

Battery Investment Considerations - The included 2.5Ah battery handles standard trimming tasks. If you frequently use EGO tools simultaneously or have larger properties, purchasing additional batteries (2.5Ah or 5.0Ah) provides flexibility and eliminates downtime.

Ecosystem Value - EGO Power+ makes string trimmers, hedge trimmers, leaf blowers, mowers, and more. All share the same 56V battery platform. Growing your collection means expanding capabilities while maintaining a single charging system.

Warranty Protection - The 5-year tool and 3-year battery warranties are among the best in the category. Registration through the included card activates warranty coverage and connects you to customer support resources.

The WORX WG170 GT Revolution delivers impressive versatility in a remarkably compact package. At just 5.5 pounds, this cordless trimmer transforms effortlessly between string trimmer, in-line wheeled edger, and mini-mower configurations, making it an excellent choice for homeowners seeking a single tool to handle multiple yard tasks. The 7-position adjustable handle combined with six rotating head settings ensures comfortable operation regardless of your height or the terrain you're working on, reducing fatigue during extended use.

The Command Feed feature stands out as a genuine convenience enhancement. Rather than stopping work to manually reload trimmer line, you simply press a button to extend fresh line automatically. This keeps you productive and eliminates frustrating interruptions. The twin-wheeled edging system with its self-supporting design produces clean, professional-quality edges without the steep learning curve associated with traditional rotating-head edgers. The 7600 RPM motor delivers adequate cutting power for typical residential applications, efficiently handling both regular grass and tougher weeds.

Battery performance proves adequate for standard quarter-acre lawns. The two included 2.0Ah 20V lithium batteries provide reasonable runtime, and compatibility with WORX's broader PowerShare ecosystem means you can leverage additional batteries from other WORX tools if needed. The five-hour charge time is standard for this battery class, though it requires some planning for larger properties or back-to-back yard work sessions. Overall, this represents solid value for homeowners prioritizing lightweight maneuverability and multi-function capability over maximum power or cutting width.

String Trimmer Mode: Perfect for edging along flower beds, sidewalks, and fence lines. The 12-inch cutting width handles regular grass and light weeds efficiently. Use this mode for precise perimeter work and detail trimming.

In-Line Wheeled Edger Mode: The twin-wheel system creates crisp, clean edges along driveways and garden borders. The wheeled design is self-supporting, making it easier to maintain consistent depth and achieve professional results compared to rotating-head edgers.

Mini-Mower Mode: Tackle grass strips and tight corners that your primary mower cannot reach. The compact design and light weight make it ideal for navigating around obstacles, under low-hanging branches, and in confined spaces.

Setup Tips: The 7-position handle allows you to find your optimal working height and angle, reducing strain during extended use. Experiment with different positions during your first few uses to discover what feels most comfortable for your body type and yard layout.

Runtime Expectations: Each 2.0Ah battery provides sufficient runtime for typical residential properties up to approximately 1/4 acre. Actual runtime varies based on grass type, thickness, and cutting mode. String trimmer mode generally consumes less power than mowing mode.

Battery Compatibility: Both batteries are compatible with the entire WORX 20V PowerShare system. If you own other WORX 20V tools, batteries are fully interchangeable, providing flexibility and reducing the need to purchase multiple battery sets.

Charging Information: Standard charge time is approximately 5 hours per battery with the included charger. Plan ahead for larger projects or consider purchasing an optional fast charger for quicker turnaround between uses.

Battery Care: Lithium-ion batteries perform best when stored in cool, dry conditions. Avoid leaving batteries in direct sunlight or extreme temperatures. Regular use maintains battery health better than extended storage periods.

Who Should Buy: This model is ideal for homeowners with small to medium-sized lawns (up to 1/4 acre), those who value lightweight maneuverability, and anyone seeking a versatile multi-function tool. It's particularly well-suited for people who struggle with heavier equipment or need to work for extended periods without fatigue.

Who Might Look Elsewhere: If you have a large property exceeding 1/2 acre, require maximum cutting width, or prefer variable speed control, consider WORX's larger models like the WG173 or WG184. For users who prioritize cutting power over weight, gas-powered alternatives may be more suitable.

Lawn Size Considerations: The WG170 handles typical quarter-acre properties with one or two battery charges. For larger lawns, budget time for charging between battery swaps or invest in additional batteries from the PowerShare lineup.

Feature Priorities: Value ease of use and lightweight design? The WG170 excels. Need maximum cutting width or variable speed? Higher-end models offer these features. Want basic, reliable functionality at a mid-range price? This trimmer delivers solid performance for the investment.

The Greenworks 40V cordless string trimmer strikes a practical balance between performance and convenience for residential lawn care. Its 12-inch dual-line cutting system with 0.065-inch line diameter delivers clean, consistent results around sidewalks, driveways, fences, and garden beds. The automatic feed line system is a genuine time-saver, advancing cutting line during operation without requiring the bump-and-feed method common on many trimmers. This feature keeps you trimming smoothly without interruption, making yard work more efficient and less frustrating.

Variable speed control is a standout feature that allows you to dial in the right power level for your task. Whether you're doing light edging work or tackling thicker grass patches, the trigger-based speed adjustment gives you precise control without wasting battery power. At just 12 pounds, the trimmer's lightweight, ergonomic design significantly reduces user fatigue during longer yard sessions, making it accessible for users of various ages and physical capabilities. The included 2Ah lithium-ion battery and charger mean you're ready to work immediately after unboxing.

Greenworks backs this trimmer with a comprehensive 3-year limited warranty covering both the tool and battery, which reflects confidence in the product's longevity. The battery is also compatible with 75+ other Greenworks tools, creating potential value if you're building a cordless yard care ecosystem. For homeowners seeking a cordless alternative to gas-powered equipment without the maintenance hassles of fuel mixing and spark plug servicing, this trimmer offers solid reliability and user-friendly operation at a competitive price point.

Is This Trimmer Right for You? The Greenworks 40V works best for small to medium-sized residential properties with light-to-moderate trimming needs. If you have a yard under 0.5 acres or primarily need edging and light weed control, this cordless option excels. Larger properties or heavy brush clearing may require multiple battery charges or a more powerful model.

Battery Considerations The included 2Ah battery provides adequate runtime for typical residential trimming sessions. Greenworks batteries are cross-compatible with 75+ tools in their 40V lineup, so investing in additional batteries or higher-capacity options (sold separately) can extend your working time without replacing the entire trimmer.

Maintenance & Accessories Replacement trimmer line spools and bulk line (100ft and 240ft options) are readily available as accessories. Unlike gas trimmers, you'll never need to mix fuel or change spark plugs. Simply charge the battery after use and store the trimmer in a dry location. The 3-year warranty provides excellent protection for both the tool and battery against manufacturing defects.

Cutting Performance The dual 0.065-inch line system cuts cleanly through standard lawn grass and light weeds. The 12-inch cutting width is narrower than some competing models, which means you'll cover ground more slowly on larger areas but with excellent maneuverability in tight spaces around landscaping and garden beds. At 7,500 RPM, the motor delivers adequate cutting force for residential use without excessive vibration.

Auto Feed Advantage The automatic line feed system is genuinely convenient. Rather than stopping to bump the trimmer head against the ground to advance the line, it feeds automatically during operation. This keeps you working continuously and reduces downtime, making the overall trimming experience smoother and more efficient than manual-feed alternatives.

Speed Control Benefits Variable speed control lets you conserve battery power on light tasks and increase power when needed. This flexibility extends battery life and reduces unnecessary strain on the motor, contributing to long-term reliability. The ergonomic, lightweight design means less arm fatigue during extended use, which is particularly valuable for older users or those with limited upper body strength.