Top 4 Best Rated Grass Trimmers: Real-World Run Time, Noise, and Cost Compared

You’ve probably done this dance before. You buy a trimmer, wrestle with the bump head for ten minutes, and the line snaps the second you hit thick weeds. Or the battery dies halfway through the backyard, and you’re left staring at a half-finished edge line.

A great grass trimmer solves three problems at once: it feeds line without a fight, it lasts long enough to finish the job, and it doesn’t wreck your back or your ears. Voltage numbers on the box tell you almost nothing about how a trimmer behaves in real grass. What matters is run time under load, the feed system, the weight balance, and how much the replacement spools will cost you over a season.

We ranked these four by who they actually suit, not by spec-sheet bragging rights. The WORX WG163 is our top pick for most suburban yards. The WORX WG928 bundle wins for anyone who also needs a blower. The WeGofly 13″ takes overgrown lots and brush. And the ALSO GO 24V is the budget-friendly pick for small, tidy lawns.

Here’s a quick look at how they stack up on the specs that actually drive the buying decision.

Features	WORX WG163	WORX WG928 Bundle	WeGofly 13″ Weed Wacker	ALSO GO 24V
Cutting Width	12 inches	12 inches	13 inches	Not specified
Power Source	20V battery	20V battery	2x 21V 6.0Ah batteries	2x 24V 2.0Ah batteries
Feed System	Push-button command feed	Push-button command feed	3 blade types	5 replaceable blades
Weight	Not specified	5.3 lbs (trimmer)	5.2 lbs	Not specified
Best Use Case	Suburban yards, edging	Yards needing blower too	Overgrown lots, brush	Small lawns, budget

WORX 20V 12″ 2-in-1 Cordl…

This trimmer is built for the homeowner with a quarter-acre lot and a clear line between lawn and flowerbed. It converts from a string trimmer to an edger in seconds, which means you don’t need a separate tool for crisp sidewalk edges. The rubberized wheels guide the edger along pavement, and the spacer guard keeps you from scalping your landscaping.

The push-button command feed is the standout feature here. You press a button, and fresh line feeds out instantly. No bumping the head on the ground, no stopping to pull line by hand. WORX also throws in free spools for life, which kills the single most annoying ongoing cost of owning a string trimmer. The head tilts 90 degrees, so you can reach under shrubs and along slopes without contorting your wrist.

It’s not a heavy-duty machine. Thick, woody weeds will slow it down, and the 12-inch cutting swath means more passes on a large lawn. You’ll be fine with this unless you’re clearing a half-acre of overgrown field. For normal suburban trimming and edging, it does the job without fuss.

• Converts to an edger with a simple head pivot
• Command feed system eliminates bump-head frustration
• Free spools for life reduces long-term line costs
• 90-degree tilting head reaches under bushes and on slopes
• Adjustable spacer guard protects plants and ornaments

Best for: Suburban homeowners who want one tool for trimming and edging without a steep learning curve.

WORX 20V 12″ Cordless Str…

Picture someone who moved into a house with a small lawn and no tools at all. They need to trim the edges and blow the clippings off the driveway. Buying two separate tools feels wasteful. This bundle solves that problem by pairing the same 12-inch trimmer/edger with a 360 CFM leaf blower, two batteries, and a quick charger.

The blower uses a turbine design modeled after a jet engine, pushing 360 cubic feet per minute at 75 mph. That’s enough to clear grass clippings, leaves, and light debris from a patio or driveway. The blower weighs just 4.4 pounds with the battery attached, and the trimmer comes in at 5.3 pounds. Both are light enough to hand to a teenager without worrying about arm fatigue.

The trade-off is that neither tool is a powerhouse. The blower won’t move wet leaves or heavy gravel, and the trimmer shares the same 12-inch swath limitation as the standalone version. You’ll be fine with this unless you need commercial-grade clearing power. For a typical suburban yard, the convenience of two tools on one battery platform outweighs the modest performance ceiling.

• Two tools share the same 20V battery platform
• Includes two batteries and a quick charger
• Blower moves 360 CFM at 75 mph
• Trimmer converts to an edger
• Blower weighs only 4.4 lbs with battery

Best for: New homeowners or anyone who needs both a trimmer and a blower without buying two separate kits.

WeGofly 13″ Electric Weed…

This one is for the person staring at a neglected back corner of the property. Blackberry vines, thick weeds, small saplings. The WeGofly 13-inch weed wacker handles all of it because it’s not really just a string trimmer. It’s a 4-in-1 tool that switches between trimmer line, metal blades, and saw blades. That means you can trim soft grass, cut thick weeds, and prune small shrubs with the same machine.

The brushless motor spins at 15,000 RPM, and the steel gear set gives it more torque than the typical budget trimmer. Two 21V 6.0Ah batteries provide extended runtime, so you’re not stopping every 20 minutes to recharge. The 13-inch cutting width covers more ground per pass than the WORX models. The telescopic pole adjusts for different heights, and the non-slip handle reduces arm fatigue during longer sessions.

It’s heavier and more complex than a basic string trimmer. Swapping between three blade types takes practice, and the metal blades require more caution around fences and tree trunks. You’ll be fine with this unless you want a simple grab-and-go trimmer for light edging. For reclaiming overgrown areas, the versatility justifies the extra setup time.

• 4-in-1 design: trimmer, edger, mini mower, brush cutter
• Three blade types for different cutting tasks
• Two 6.0Ah batteries for extended runtime
• 15,000 RPM brushless motor with steel gears
• 13-inch cutting width and adjustable telescopic pole

Best for: Homeowners with overgrown sections, brush, or small saplings who need one tool to handle everything.

24V Electric Weed Wacker…

This trimmer targets the budget-conscious buyer with a small, manageable lawn. It comes with five replaceable blade types: metal blades for thick weeds, saw blades for branches, and plastic blades for tender grass. The telescopic pole adjusts from 35 to 47 inches, so shorter and taller users can both find a comfortable working position.

The 650W pure copper motor hits 11,000 RPM no-load speed, which is respectable for light to medium-duty trimming. Two 24V 2.0Ah batteries provide steady power, though the manual recommends resting the motor for 15 minutes after every 30 to 45 minutes of continuous use. Dual safety lock switches prevent accidental startups, a nice feature if you have kids or curious pets in the yard. The auxiliary wheel helps guide the trimmer along edges, which reduces strain on your arms and back.

The main limitation is the duty cycle. This isn’t a marathon trimmer. If you have a large yard with heavy grass, you’ll spend more time waiting for the motor to cool than actually cutting. You’ll be fine with this unless you’re clearing a big property in one session. For small lawns and light touch-ups, it’s a practical, affordable option.

• Five blade types for different garden tasks
• 650W copper motor with 11,000 RPM no-load speed
• Two 24V 2.0Ah batteries included
• Dual safety lock switches for secure operation
• Auxiliary wheel and telescopic pole for ergonomic use

Best for: Budget-minded homeowners with small lawns who want blade versatility without spending much.

How We Chose These Products

We started with the specs that matter for real-world use: cutting width, motor type, battery capacity, feed system, and weight. Then we filtered out trimmers with known reliability complaints or unclear warranty terms. The four that made the cut all have distinct strengths and serve different buyer profiles.

Our evaluation prioritized total cost of ownership over sticker price. A trimmer with free spools for life saves money every season. A bundle with two batteries and a charger saves you from buying accessories later. We also considered how each trimmer handles the tasks its target buyer actually faces, not how it performs in ideal conditions.

Buying Guide: What Really Matters

Voltage is the most misunderstood spec in the trimmer aisle. A 20V trimmer and a 24V trimmer can perform similarly if the motor and gearing are different. What matters more is run time under load. A 6.0Ah battery will outlast a 2.0Ah battery by a wide margin, regardless of voltage. If you have a quarter-acre or more, prioritize amp-hours over voltage.

Feed systems fall into three categories: bump feed, auto-feed, and manual. Bump feed requires tapping the head on the ground to advance line. Auto-feed advances line automatically, but can waste string. Manual feed means stopping to pull line by hand. The WORX command feed system is a push-button design that sits between auto and manual, and it’s one of the least frustrating systems available. If you hate dealing with trimmer line, pay attention to this spec.

Weight and balance matter more than most buyers expect. A 5-pound trimmer feels light for the first ten minutes and heavy after thirty. Look for a model with a telescopic pole and an adjustable handle so you can customize the balance to your height. If you have wrist or shoulder issues, consider a trimmer with an auxiliary wheel or a shoulder strap. Noise and vibration are harder to compare on paper, but battery trimmers are generally quieter and smoother than gas models. For a deeper look at how different trimmer types perform, see this trimmer and weed wacker guide.

Our Top Recommendation

The WORX WG163 is our top pick for most homeowners. It balances price, performance, and convenience better than anything else in this group. The push-button feed system eliminates the most common frustration with string trimmers, and the free spools for life remove the ongoing cost of replacement line. It converts to an edger in seconds, which means you don’t need a second tool for sidewalk edges.

If you also need a leaf blower, the WORX WG928 bundle is the smarter buy. You get two tools, two batteries, and a charger for less than buying them separately. If your yard has overgrown sections or brush, the WeGofly 13″ is the better choice because of its blade versatility and larger cutting width. And if you’re on a tight budget with a small lawn, the ALSO GO 24V covers the basics without breaking the bank. For larger properties, you may want to check this guide on trimmers for large yards.

Frequently Asked Questions

How long does a battery trimmer actually run under heavy grass?

Claimed run times are measured under light load. In thick grass, expect 40 to 60 percent of the advertised number. A trimmer rated for 45 minutes might give you 20 to 25 minutes in heavy weeds. The WeGofly’s two 6.0Ah batteries help here because you can swap and keep working. The ALSO GO’s 2.0Ah batteries are better suited to light trimming with breaks.

What’s the real cost of replacement line and spools over a season?

If you trim weekly during growing season, you’ll go through two to four spools. Generic replacement line costs less but can jam the feed system. The WORX free spools for life program eliminates this cost entirely, which adds up to real savings over several years. For other brands, budget for replacement spools as an annual expense.

Can I use a battery trimmer for edging along a driveway?

Yes, if the trimmer has an edging mode. The WORX models convert to an edger with a head pivot and include guide wheels for straighter lines. The WeGofly and ALSO GO models can edge with the right blade and head angle, but they don’t have dedicated guide wheels. For crisp, consistent edges, a trimmer with a wheeled edging mode is easier to control.

How do I store a battery trimmer for winter?

Remove the battery and store it indoors at room temperature. Charge it to about 50 percent before storage, not full. Clean grass and debris from the cutting head and vents. Store the trimmer hanging or on a shelf, not resting on the cutting head. For gas trimmers, you’d need to drain the fuel, but battery models are simpler. Just keep the battery out of freezing temperatures and you’ll avoid most issues.

For more detail on specific trimmer types, including string trimmer options, our other guides cover those categories in depth.