You’re probably spending too much time wrestling with your yard work instead of enjoying your outdoor space. The right string trimmer can transform how you handle edging, weed control, and lawn maintenance. But with cordless, corded, and gas-powered options flooding the market, you’ll want to know which models actually deliver on their promises. We’ve narrowed down the top performers that’ll streamline your routine.
| VARSK 20V Cordless Weed Wacker String Trimmer Edger |  | Best Overall | Power Source: 20V cordless battery | Cutting Width: 12 inches | Motor Speed (RPM): 8700 RPM | VIEW LATEST PRICE | Read Our Analysis |
| Greenworks 80V Cordless String Trimmer with Battery |  | Most Powerful | Power Source: 80V cordless battery | Cutting Width: 16 inches | Motor Speed (RPM): 6500 RPM | VIEW LATEST PRICE | Read Our Analysis |
| CRAFTSMAN V20 Cordless String Trimmer and Edger (CMCST900D1) |  | Best Value | Power Source: 20V cordless battery | Cutting Width: 13 inches | Motor Speed (RPM): Not specified | VIEW LATEST PRICE | Read Our Analysis |
| String Trimmer Cordless 21V Battery Powered Weed Wacker |  | Budget-Friendly Pick | Power Source: 21V cordless battery | Cutting Width: 5.9 inches | Motor Speed (RPM): 11000 RPM | VIEW LATEST PRICE | Read Our Analysis |
| BLACK+DECKER 14-Inch 2 in 1 String Trimmer (BESTA510) |  | Most Popular | Power Source: Corded electric (6.5 Amp) | Cutting Width: 14 inches | Motor Speed (RPM): Not specified (6.5 Amp motor) | VIEW LATEST PRICE | Read Our Analysis |
| WORX Nitro Cordless String Trimmer & Lawn Edger (WG173) |  | Best Versatility | Power Source: 20V cordless battery | Cutting Width: 13 inches | Motor Speed (RPM): 7600 RPM | VIEW LATEST PRICE | Read Our Analysis |
| Greenworks 40V Cordless String Trimmer with Auto Feed |  | Best For Beginners | Power Source: 40V cordless battery | Cutting Width: 12 inches | Motor Speed (RPM): 7500 RPM | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
VARSK 20V Cordless Weed Wacker String Trimmer Edger
If you’re looking for a versatile 2-in-1 tool that handles both trimming and edging without the hassle of cords or gas, the VARSK 20V is your answer. This lightweight trimmer weighs just 5.3 lbs, so you won’t tire easily during yard work. Its 8700RPM motor delivers powerful cutting performance across a 12-inch width, while automatic line feed keeps you moving without interruptions. The adjustable handle and pivoting cutting head give you flexibility for different tasks and angles. You’ll get 30+ minutes of runtime per charge with the included 2.0Ah batteries, plus six replacement spools. At a 4.5-star rating from 191 reviewers, it’s earned its #1 rank in power edgers.
- Power Source:20V cordless battery
- Cutting Width:12 inches
- Motor Speed (RPM):8700 RPM
- Runtime/Battery Life:30+ minutes
- Trimmer & Edger Conversion:2-in-1 (trimmer & edger)
- Weight:5.3 lbs
- Additional Feature:180° adjustable handle design
- Additional Feature:80° pivoting cutting head
- Additional Feature:6 replacement spools included
Greenworks 80V Cordless String Trimmer with Battery
The Greenworks 80V Cordless String Trimmer with Battery stands out as an excellent choice for homeowners seeking a lightweight, low-maintenance alternative to gas-powered models. You’ll appreciate its 80V brushless motor delivering impressive cutting power through a 16-inch path with dual .080″ line. The variable-speed trigger gives you precise control, while the bump feed system advances line effortlessly. At just 16 pounds, this ergonomic trimmer reduces fatigue during extended use. You’ll get 30 minutes of runtime per charge with the included 2.0Ah battery, which recharges in 30 minutes. Plus, there’s no gas, oil, or emissions—it starts instantly and runs quietly. The 4-year limited warranty provides solid protection for your investment.
- Power Source:80V cordless battery
- Cutting Width:16 inches
- Motor Speed (RPM):6500 RPM
- Runtime/Battery Life:30 minutes
- Trimmer & Edger Conversion:String trimmer only
- Weight:16 lbs
- Additional Feature:Brushless motor technology
- Additional Feature:Variable-speed trigger control
- Additional Feature:30-minute rapid charging
CRAFTSMAN V20 Cordless String Trimmer and Edger (CMCST900D1)
For homeowners seeking a versatile trimmer that won’t weigh you down, the CRAFTSMAN V20 stands out with its lightweight 6.3-pound design and quick conversion between trimmer and edger modes. You’ll appreciate the 13-inch cutting swath that covers ground efficiently, while the ergonomic telescoping pole adjusts to your comfort level. The 2.0 Ah lithium-ion battery delivers extended runtime, and you can choose between two speed settings depending on whether you prioritize power or longevity. An automatic line advance system keeps you trimming without interruption. The integrated VERSATRACK hook simplifies storage, and CRAFTSMAN backs it with a reassuring 3-year limited warranty.
- Power Source:20V cordless battery
- Cutting Width:13 inches
- Motor Speed (RPM):Not specified
- Runtime/Battery Life:Extended runtime (not specified)
- Trimmer & Edger Conversion:Converts from trimmer to edger
- Weight:6.3 lbs
- Additional Feature:2-speed power settings
- Additional Feature:VERSATRACK wall organization compatible
- Additional Feature:Ergonomic telescoping pole
String Trimmer Cordless 21V Battery Powered Weed Wacker
You’ll want this 21V cordless model if you’re constantly switching between trimming grass, cutting brush, and edging your landscape. The dual-blade system—diamond-shaped blades for weeds and circular saw blades for woody plants—handles diverse tasks without swapping equipment. With a 5.9-inch cutting width and 11,000 RPM motor, you’ll work efficiently through dense vegetation. The 90° rotating head and 180° adjustable handle adapt to various angles, while the adjustable height accommodates different user preferences. Two 2.0Ah batteries deliver 30 minutes of runtime, and three indicator lights track battery levels. Safety locks and a rotating baffle design protect against accidents, making yard maintenance straightforward and secure.
- Power Source:21V cordless battery
- Cutting Width:5.9 inches
- Motor Speed (RPM):11000 RPM
- Runtime/Battery Life:30 minutes
- Trimmer & Edger Conversion:Grass trimmer & edger
- Weight:Not specified
- Additional Feature:Diamond-shaped blade attachments
- Additional Feature:90° rotation cutting head
- Additional Feature:3 battery indicator lights
BLACK+DECKER 14-Inch 2 in 1 String Trimmer (BESTA510)
BLACK+DECKER’s 14-inch 2-in-1 trimmer stands out for homeowners who want versatility without investing in separate tools. You’ll appreciate the 6.5 Amp motor’s power combined with the lightweight design, making extended yard work less tiring. The adjustable handle and height positions let you customize comfort for your frame and trimming style. You’ll tackle grass and weeds in tight spaces, then flip to edging mode for crisp borders along sidewalks and flower beds. Automatic Feed Spool technology eliminates manual adjustments, while the cord retention system keeps things secure. With a 4.4-star rating from over 17,000 customers and BLACK+DECKER’s 2-year warranty backing your purchase, you’re getting reliable performance that won’t disappoint.
- Power Source:Corded electric (6.5 Amp)
- Cutting Width:14 inches
- Motor Speed (RPM):Not specified (6.5 Amp motor)
- Runtime/Battery Life:Unlimited (corded)
- Trimmer & Edger Conversion:2-in-1 (trimmer & edger)
- Weight:Not specified
- Additional Feature:Power Drive Transmission technology
- Additional Feature:6.5 Amp corded motor
- Additional Feature:Automatic Feed Spool technology
WORX Nitro Cordless String Trimmer & Lawn Edger (WG173)
The WORX Nitro WG173 stands out as an excellent choice if you’re seeking maximum versatility in a single tool. This 20V cordless trimmer combines three functions—trimmer, edger, and mini-mower—in one lightweight package weighing just 6.62 lbs. You’ll appreciate the brushless motor‘s 50% longer runtime and 25% increased power compared to standard motors. The 13-inch cutting width is 3X larger than previous models, letting you cover more ground faster. Its 90° pivoting head reaches tight corners effortlessly, while the push-button feed system simplifies line advancement. The included 4.0Ah battery works with 140+ WORX Power Share tools, maximizing your investment’s value.
- Power Source:20V cordless battery
- Cutting Width:13 inches
- Motor Speed (RPM):7600 RPM
- Runtime/Battery Life:30% longer than previous model (not specified)
- Trimmer & Edger Conversion:3-in-1 (trimmer, edger, mini-mower)
- Weight:6.62 lbs
- Additional Feature:3-in-1 mini-mower functionality
- Additional Feature:Push-button command feed system
- Additional Feature:Compatible with 140+ tools
Greenworks 40V Cordless String Trimmer with Auto Feed
If you’re tired of manual line feeding interrupting your trimming sessions, Greenworks’ 40V model delivers automatic convenience that keeps you working without constant stops. The auto feed line system eliminates downtime, while variable speed control gives you precise handling and extra power when tackling tougher edges. Its 12-inch cutting path efficiently handles sidewalks, driveways, and garden beds. At just 12 pounds with an ergonomic design, you’ll minimize fatigue during extended use. The lithium-ion battery powers smooth, consistent trimming at 7500 RPM. You’ll appreciate the three-year limited warranty covering both tool and battery, making this a reliable choice for routine yard maintenance.
- Power Source:40V cordless battery
- Cutting Width:12 inches
- Motor Speed (RPM):7500 RPM
- Runtime/Battery Life:Not specified
- Trimmer & Edger Conversion:String trimmer only
- Weight:12 lbs
- Additional Feature:Variable speed control precision
- Additional Feature:Auto feed line system
- Additional Feature:3-year limited warranty coverage
Factors to Consider When Choosing a String Trimmer
When you’re shopping for a string trimmer, you’ll want to evaluate the power source and runtime to guarantee it meets your yard’s demands without constant recharging. You should also consider the cutting width and performance capabilities, along with the weight and ergonomic design, since you’ll be holding and maneuvering the tool for extended periods. Finally, you’ll benefit from examining battery compatibility, charging options, and versatility through available attachment options, as these factors can extend your trimmer’s usefulness beyond basic edging.
Power Source And Runtime
Your choice of power source fundamentally affects a string trimmer’s performance, convenience, and long-term costs. Cordless battery models offer portability and quiet operation with 20 to 80 minutes of runtime per charge, depending on battery capacity measured in ampere-hours. You’ll appreciate rapid chargers that fully recharge in 30 minutes, though standard chargers may take several hours. Corded electric trimmers provide unlimited runtime without battery concerns, but you’re tethered to outlet proximity. Gas-powered models deliver superior power and extended runtime, yet you’ll contend with noise, fume emissions, fuel expenses, and regular maintenance. Consider your yard size, noise tolerance, and willingness to manage charging schedules or fuel requirements when selecting your ideal power source.
Cutting Width And Performance
Just as power source affects overall efficiency, cutting width and motor performance determine how quickly you’ll finish your yard work. You’ll find cutting widths typically range from 12 to 16 inches, with wider paths covering more ground per pass and boosting your productivity.
Motor power, measured in RPM, directly impacts your trimmer’s ability to cut through dense, overgrown vegetation. Higher RPM means you’ll tackle tougher weeds effortlessly. Variable speed controls let you adjust power output for different tasks, helping you balance runtime with performance based on your needs.
Consider upgrading to brushless motors—they’re more powerful, efficient, and durable than traditional brushed models. Dual-line string trimmers offer wider cutting paths and handle challenging growth better than single-line options, making them worth the investment for demanding yards.
Weight And Ergonomic Design
Because you’ll be holding your trimmer for extended periods, weight and ergonomic design profoundly impact your comfort and trimming efficiency. A lightweight model under 10 lbs reduces fatigue, allowing you to work longer without strain.
Look for ergonomic features that enhance usability. Adjustable handles and telescoping shafts accommodate different heights, ensuring you maintain proper posture throughout your session. Rotating heads provide flexibility for accessing tight spaces, while soft grips improve control and reduce hand discomfort.
Well-balanced trimmers distribute weight evenly across the tool, minimizing stress on your arms and back. Vibration-dampening technology further protects your hands and arms from the repetitive impact of prolonged use.
When evaluating trimmers, prioritize these design elements alongside cutting performance to maximize both comfort and productivity during yard work.
Battery Compatibility And Charging
When you’re shopping for a battery-powered string trimmer, selecting the right battery voltage and capacity makes all the difference in performance and convenience. You’ll want to evaluate runtime carefully—ensure the battery lasts long enough for your entire yard without frequent recharging interruptions.
Lithium-ion batteries are your best choice, delivering longer runtime and faster charging than older technologies. Look for models that include both batteries and chargers, which simplifies setup and guarantees compatibility across your tools.
Consider brushless motor options too. They’ll give you more torque and efficiency from the same battery capacity, maximizing your trimming power. By prioritizing these battery factors, you’ll invest in a trimmer that truly works when you need it.
Versatility And Attachment Options
A string trimmer’s true value emerges when you can swap attachments to tackle multiple yard tasks. Look for models that accept interchangeable heads—edgers, hedge trimmers, pole saws, and cultivators—so you won’t need separate tools cluttering your shed.
Check whether the trimmer uses a universal shaft system compatible with various manufacturers’ attachments or if you’re locked into proprietary options. Universal systems offer flexibility and cost savings over time.
Consider your yard’s specific needs. If you’ve got dense hedges and overgrown edges, versatile models justify their higher price. However, if you only need basic trimming, a single-function trimmer may suffice.
Evaluate weight distribution when swapping attachments. Heavier heads can strain your arms during extended use, so balance matters as much as capability.
Warranty And Support Coverage
Your investment in a quality string trimmer deserves protection beyond the initial purchase. Look for warranties covering both the trimmer and battery for at least one year, with extended coverage options available.
Prioritize manufacturers offering 24/7 customer support and efficient warranty claim processing. Verify that coverage includes wear-and-tear parts like trimmer line and spools, which you’ll replace regularly.
Check whether the warranty provides full refunds or replacements if the product underperforms. A hassle-free return policy is crucial—you’ll want quick resolution if problems arise during use.
Strong warranty support reflects manufacturer confidence in their equipment. Research brand reputation through customer reviews before purchasing, ensuring you’re backed by dependable service when you need it most.
Price And Overall Value
Most string trimmers range from budget-friendly to premium, but you’ll find that price alone doesn’t determine value. Instead, compare the price per feature—examining motor power, cutting width, and battery capacity—to guarantee you’re getting the best bang for your buck.
Look for models that balance affordability with high-quality components built for long-term durability. Evaluate what’s included: accessories, warranties, and customer support all factor into the overall value proposition. Don’t overlook long-term operating costs either. Factor in replacement line and battery pack expenses to understand your total cost of ownership.
