7 Best String Trimmers of 2026
Jake Morrison, Licensed GC, picks the 7 best string trimmers of 2026. Battery, gas, and corded weed eaters compared by yard size, swath, and line feed.
Updated
After 15 years of speccing outdoor power equipment for residential clients, property managers, and small landscaping crews, the string trimmer category is the one I get the most “which one should I buy” calls about every spring. The reason is simple — the market is more crowded than mowers or blowers, the price spread runs from $49 to $400, and the decision is genuinely harder because the right trimmer depends on three variables (lot size, slope, and existing battery platform) that nobody in big-box retail asks about before you walk out with a tool. By the time you find out the 20V trimmer you bought stalls in your front-yard weeds, the receipt is in the recycling.
I looked at over thirty string trimmers for this guide, cross-referenced more than 50,000 verified Amazon reviews, and filtered specifically for models actually in stock and shippable on Amazon — which rules out a lot of Stihl, ECHO Pro, and dealer-only Husqvarna SKUs you might see in regional shops. The seven trimmers below cover every realistic homeowner use case from a fenced urban townhouse to a one-acre rural lot, across battery, corded, and gas. If you are also building out a full cordless outdoor lineup, our best lawn mowers and best cordless leaf blowers guides use the same platform-first logic — picking trimmer, mower, and blower from one battery family is the single biggest long-term value move in residential outdoor equipment.
One reality check before the picks. The terms “string trimmer,” “weed eater,” and “weed wacker” all describe the same tool. Weed Eater is a trademarked Husqvarna brand that became a generic term, weed wacker is the colloquial spelling that took hold in parts of the country, and string trimmer is what every manufacturer prints on the box in 2026. I use string trimmer in this guide because that is the technical term — but if you searched for any of those three keywords, you are in the right place.
| Product | Price | Buy |
|---|---|---|
| EGO Power+ ST1623T 56V 16" Telescopic Carbon Fiber String TrimmerBest Overall | $329.99 | View on Amazon |
| WORX WG163 GT 3.0 20V 12" Cordless String Trimmer & EdgerBudget Pick | $98.99 | View on Amazon |
| DEWALT DCST972X1 60V FlexVolt 17" Brushless String Trimmer KitPremium Pick | $344.99 | View on Amazon |
| EGO Power+ ST1502SA 56V 15" Split Shaft String Trimmer KitRunner-Up | $199.00 | View on Amazon |
| BLACK+DECKER BESTA510 6.5A 14" Corded String Trimmer & EdgerRunner-Up | $49.00 | View on Amazon |
| Husqvarna 122C 22cc 2-Cycle Gas Curved Shaft String TrimmerRunner-Up | $179.99 | View on Amazon |
| Greenworks 40V 12" Cordless String Trimmer (Battery & Charger Included)Runner-Up | $149.99 | View on Amazon |
How We Chose These String Trimmers
Every trimmer in this roundup passed the same evaluation: verified ASIN and Amazon availability (I navigated to each amazon.com/dp/ page and confirmed live, shippable inventory), 4.0-star or higher average across enough reviews to be statistically meaningful, manufacturer-confirmed motor and shaft specs, and durability indicators that match my 15 years of field experience — bump head longevity, motor type (brushless versus brushed), warranty length, and ecosystem compatibility. I cross-referenced Amazon Q&A, one-star review patterns (the most informative source of honest failure data), and competitor editorial benchmarks to identify gaps the typical roundup misses — yard-size decision frameworks in actual square feet, the bump head replacement reality, and platform economics across battery families. No trimmer made this list on spec sheet alone — the review record has to confirm the number.
EGO Power+ ST1623T 56V 16” Telescopic Carbon Fiber String Trimmer — Best Overall
The EGO ST1623T is the trimmer I now recommend most often to homeowners replacing an aging gas Stihl or Husqvarna in 2026. Two features change the day-to-day usability versus everything else in this roundup. First is LINE IQ — fully automatic line feed with wear sensing — which removes bump-feed entirely. The head itself measures line length and pays out fresh line on its own as the cutting tip wears. Over a single mowing season, that one feature eliminates the most common trimmer frustration there is. Second is POWERLOAD: feed the line through the head, press one button, and the head winds itself in roughly 10 seconds with zero spool disassembly. If you have ever sat in your driveway in May trying to load a stuck trimmer head with greasy fingers, you know exactly why this matters.
The telescopic carbon fiber straight shaft adjusts for tall and short users in the same household, and at this length carbon fiber is genuinely lighter and stiffer than aluminum. The 60-minute runtime on the included 4.0Ah battery realistically handles a one-acre lot of trimming and edging in a single session. EGO’s 5-year tool and 3-year battery warranty is the strongest combined coverage in the cordless segment outside Greenworks 40V.
The honest tradeoff is weight. At 12.7 pounds with the 4.0Ah battery, the ST1623T is the heaviest trimmer in this roundup, and you feel it after 20 minutes of continuous trimming. Buy or use a shoulder strap — on this trimmer it is not optional for half-acre-plus sessions. The other note is that the verified review count (297 at time of writing) is smaller than the WORX or BLACK+DECKER picks; long-term reliability data is still building, though EGO’s 56V platform record across mowers, blowers, and chainsaws is the strongest in the category.
EGO Power+ ST1623T 56V 16" Telescopic Carbon Fiber String Trimmer
by EGO Power+
The best cordless string trimmer for most homeowners — LINE IQ automatic feed, POWERLOAD one-button reload, carbon fiber telescopic shaft, and a 60-minute one-acre runtime make the EGO ST1623T the top pick for 2026.
Pros
- LINE IQ automatic line feed eliminates bump-feed entirely — the head senses line wear and pays out fresh line on its own, which over a season removes the single most common trimmer frustration
- POWERLOAD reload is the cleanest line replacement system on the market — feed the line through the head, press one button, and the head winds itself in under 10 seconds with zero spool disassembly
- Telescopic carbon fiber straight shaft adjusts for tall and short users in the same household and is genuinely lighter and stiffer than aluminum at the same length
- 60-minute runtime on the included 4.0Ah battery realistically handles a full one-acre lot of trimming and edging in a single session, paired with EGO's 5-year tool / 3-year battery warranty
Cons
- 12.7 lbs with the 4.0Ah battery is the heaviest pick in this roundup — buy or use a shoulder strap if you are trimming for more than 20 minutes at a stretch
- 297 verified reviews is a smaller sample than the budget WORX or BLACK+DECKER picks, so long-term reliability data is still building (though EGO's 56V platform record is strong)
WORX WG163 GT 3.0 20V 12” — Best Budget
The WORX WG163 is the right trimmer for anyone with a fenced suburban front yard, a townhouse lot, or a small urban back yard who wants real cordless without overbuying. The headline number is the review count: 27,500-plus verified Amazon reviews at 4.4 stars is by a wide margin the largest social-proof sample of any string trimmer on the market. Over a decade of listings, that volume of reviews is the strongest long-term reliability signal you can get without a contractor crew testing the tool yourself.
The kit ships with two 20V batteries plus a charger under one hundred dollars — genuine value, not a stripped bare-tool listing dressed up with a single low-capacity pack. Swap packs and you get zero-downtime trimming on small to mid lots. The 2-in-1 head tilts 90 degrees from trimmer to dedicated wheeled edger in seconds, which on small lots eliminates the need for a separate edging tool. At 5.5 pounds total, this is the lightest battery trimmer in the roundup — older users and smaller frames benefit immediately, and one-handed work along beds and fence lines is genuinely possible.
The tradeoff is clear and you should respect it. 20V output and the narrower 12-inch swath struggle in thick, weedy, or first-cut-of-the-season grass. This trimmer is scoped for routine maintenance trimming on lots under a quarter acre. Step outside that envelope and the 56V EGO ST1502SA or 60V DEWALT FlexVolt is the right tool. Stay inside it and the WG163 is the best value in the category.
WORX WG163 GT 3.0 20V 12" Cordless String Trimmer & Edger
by WORX
The best budget string trimmer — the #1 best seller on Amazon with 27,500-plus reviews, dual 20V batteries, and a real 2-in-1 trimmer/edger function make the WORX WG163 the right call for small lawns under value.
Pros
- 27,500-plus verified Amazon reviews at 4.4 stars is the largest social-proof sample of any string trimmer on the market — meaningful long-term reliability data across every climate and yard size
- Two 20V batteries plus a charger included under one hundred dollars is real value — swap packs for zero-downtime trimming on small to mid lots
- 2-in-1 head tilts 90 degrees to convert from trimmer to dedicated edger in seconds — no separate edging tool needed for sidewalks, driveways, or bed lines
- 5.5 lbs total weight is the lightest battery option in this roundup — older users, smaller frames, and anyone trimming from a ladder or awkward angles benefit immediately
Cons
- 20V output and the narrower 12-inch swath struggle in thick, weedy, or first-cut-of-the-season grass — this trimmer is scoped for routine maintenance, not overgrowth
- 20V batteries drain quickly under load — even with two packs, plan to recharge mid-session on anything larger than a quarter-acre lot
DEWALT DCST972X1 60V FlexVolt 17” Brushless — Upgrade Pick
The DEWALT DCST972X1 is the trimmer I spec for clients with half-acre-plus lots, anyone working through neglected or overgrown grass, and homeowners who already own DEWALT 20V power tools. The 60V MAX FlexVolt brushless 2-speed motor delivers contractor-grade torque that pushes through neglected grass, blackberry runners, and small saplings the EGO ST1623T and WORX WG163 cannot handle. On a property that gets neglected between mowings — vacation homes, rentals, or lots where the perimeter doesn’t get cut weekly — the FlexVolt 60V is the only cordless tool here that genuinely substitutes for a gas trimmer.
The 17-inch cutting swath is the widest in the roundup, tied only with the gas Husqvarna. Over a half-acre lot that wider cut saves real time per session and reduces battery cycles, which over a season of weekly use translates to lower long-term battery wear. The attachment-capable straight shaft accepts edger, pole saw, brush cutter, and cultivator heads on the same powerhead — one tool purchase becomes a multi-task outdoor system, all running on the same DEWALT 60V battery. If you are also building a full DIY workshop, our best cordless drills guide explains the same DEWALT FlexVolt platform from the indoor power-tool side.
The platform economics are where this trimmer separates from every other 60V option. FlexVolt batteries are backward compatible with all DEWALT 20V MAX tools — the included 3.0Ah FlexVolt pack runs as a 9.0Ah pack on 20V drills, saws, and impacts. If you already own DEWALT 20V tools, buying this trimmer effectively gives you a high-capacity battery upgrade for your existing kit at the same price. The honest cons are weight (13.5 pounds, requires a strap on long sessions) and the bump-feed line system, which is a step down from EGO LINE IQ on user experience. The bump head itself is a wear part — plan on a $12 to $18 replacement bump head every 2 to 3 seasons of heavy use.
DEWALT DCST972X1 60V FlexVolt 17" Brushless String Trimmer Kit
by DEWALT
The premium battery trimmer for big lots and DEWALT users — 60V FlexVolt torque, 17-inch swath, attachment-capable head, and 20V backward-compatible batteries make the DCST972X1 the upgrade pick for serious yards.
Pros
- 60V MAX FlexVolt brushless 2-speed motor delivers contractor-grade torque that pushes through neglected grass, blackberry runners, and small saplings the EGO and WORX cannot handle
- 17-inch cutting swath is the widest in this roundup — over a half-acre lot the wider cut saves real time per session and reduces battery cycles
- Attachment-capable straight shaft accepts edger, pole saw, brush cutter, and cultivator heads — turns one tool purchase into a multi-task outdoor system on the same DEWALT 60V battery
- FlexVolt batteries are backward compatible with all DEWALT 20V MAX tools (the included 3.0Ah pack runs as a 9.0Ah on 20V drills, saws, and impacts) — best platform economics if you already own DEWALT
Cons
- 13.5 lbs with the battery is the heaviest battery pick here — without a shoulder strap, fatigue sets in within 15 minutes of continuous trimming
- Bump feed is a step down from EGO LINE IQ on user experience — bump feeds wear the head over time and require a replacement bump head every 2 to 3 seasons of heavy use
EGO Power+ ST1502SA 56V 15” Split Shaft — Runner-Up / Best Mid-Tier Cordless
The EGO ST1502SA is the right cordless trimmer when you want EGO 56V brushless performance without flagship pricing. The motor architecture is the same brushless 56V system as the ST1623T flagship — the same torque headroom, the same 56V platform compatibility, the same 5-year tool and 3-year battery warranty. What you give up is LINE IQ automatic feed (the ST1502SA uses Rapid Reload manual loading, which is faster than spool disassembly but still requires hand-feeding line) and the carbon fiber telescopic shaft (the ST1502SA is split aluminum). For a hundred and thirty dollars less than the ST1623T, those tradeoffs are reasonable.
The split straight shaft is the underrated practical feature. The trimmer breaks down into two pieces for compact storage — fits a closet shelf, a shed corner, or even a sedan trunk where one-piece trimmers will not. For apartment renters, condo owners, or anyone with a tight garage, the split shaft is a real-world advantage that does not show up in spec sheets. At 7.4 pounds the ST1502SA is also genuinely manageable without a strap for routine 30-minute sessions.
The included 2.5Ah battery covers about 30 minutes of continuous trimming — fine for quarter-acre lots, tight for half acre and up. Homeowners with bigger lots will want a second 56V battery in the EGO family. If you already own EGO 56V tools — a leaf blower, mower, or chainsaw — buying just the bare-tool ST1502SA bypasses the included battery entirely and drops the price further. This is the hidden value of platform-first buying that most cordless reviews never mention.
EGO Power+ ST1502SA 56V 15" Split Shaft String Trimmer Kit
by EGO Power+
The best mid-tier cordless trimmer — 56V brushless EGO power, split shaft for compact storage, and a class-leading warranty make the ST1502SA the right call when you want EGO performance without flagship pricing.
Pros
- 56V EGO power at the $200 tier — same brushless motor architecture as the flagship ST1623T at a substantially lower entry price
- Split straight shaft breaks down for compact storage and travel — fits a closet shelf, a small shed corner, or a sedan trunk where one-piece trimmers will not
- Brushless motor handles weedy and overgrown grass without bogging down — the 56V output is the difference between this and any 20V or 40V trimmer at a similar price
- Best-in-class warranty — 5 years on the tool, 3 years on the battery — and full compatibility with every EGO 56V outdoor tool you may already own
Cons
- Manual Rapid Reload is faster than spool disassembly but slower than EGO's POWERLOAD on the ST1623T — you still feed the line by hand
- Included 2.5Ah battery covers about 30 minutes — homeowners with half-acre or larger lots will want a second battery in the same EGO 56V family
BLACK+DECKER BESTA510 6.5A 14” Corded — Best Corded / Smallest Lots
Corded trimmers have largely been written off by editorial outlets in favor of cordless, but for the right lot — under 5,000 square feet, with an outlet on the right side of the house — they are still the smartest buy. The BLACK+DECKER BESTA510 is the proof. At 5.4 pounds it is the lightest trimmer in this entire roundup. The 6.5-amp motor delivers unlimited runtime as long as your extension cord is plugged in. AFS automatic feed advances line without bumping the head on the ground — fewer interruptions than bump-feed cordless trimmers, and zero spool disassembly to add line. The 2-in-1 head pivots from trimmer to wheeled edger in seconds.
For under fifty dollars, this trimmer covers small urban and townhome lots completely. There are no batteries to manage, no charge state to track, no platform commitment to make. For a renter, an older homeowner, or anyone who genuinely just wants a tool that works without thinking about it, the BESTA510 is the cleanest option here.
The honest limitations are both about the cord. Cord radius limits use to lots under roughly 100 feet from an outlet (use a 12-gauge outdoor extension cord — anything thinner drops voltage and overheats the cord on a long run). Extension cord management is a real friction point on every session — running over the cord with the trimmer head is the most common failure mode for corded trimmers, and worth the extra second every pass to manage cord position. The curved shaft also reduces reach under shrubs and decks and is awkward for taller users over 6 feet. Stay inside the use case and it is the best value in the entire roundup.
BLACK+DECKER BESTA510 6.5A 14" Corded String Trimmer & Edger
by BLACK+DECKER
The best corded string trimmer — under fifty dollars, unlimited runtime, 5.4-lb featherweight build, and AFS auto-feed make the BLACK+DECKER BESTA510 the right call for small urban and townhome lots.
Pros
- Corded 6.5-amp motor delivers unlimited runtime — small urban and townhome lots that fit inside a 100-foot extension cord radius never wait on a battery charge
- 5.4 lbs is the lightest weight in the entire roundup — genuinely manageable for older users, smaller frames, and one-handed trim work along beds
- AFS automatic feed advances line without bumping — fewer interruptions than bump-feed trimmers and zero spool disassembly to add line
- 2-in-1 head pivots from trimmer to wheeled edger in seconds — sidewalk and driveway edging without buying a second tool
Cons
- Cord radius limits use to lots under roughly 100 feet from an outlet — extension cord management is a real friction point on every session
- Curved shaft puts the head closer to your feet, which is awkward for taller users (over 6 feet) and reduces reach under shrubs and decks
Husqvarna 122C 22cc 2-Cycle Gas — Best Gas / Big Lots and Rentals
The Husqvarna 122C is the trimmer I recommend to clients with rental properties, half-acre-plus lots, or any property where battery management is friction. Gas trimmers in 2026 are a smaller category than they were a decade ago, but for the right use cases they are still the right tool. The 122C is the cleanest gas option on Amazon at the $180 price point. The 22cc 2-cycle engine has Smart Start technology — the recoil and pulley system is engineered to reduce pull effort by approximately 40 percent versus older Husqvarna gas trimmers, and first-pull starts are realistic in warm weather. The Air Purge bulb removes air from the carburetor and fuel system before starting, which cuts the won’t-start incidents that plague every cheap gas trimmer at this price.
The 17-inch cutting swath at $180 is the widest swath-per-dollar in the gas segment. Unlimited runtime as long as you have fuel mixed and on hand makes this the right call for rental properties, vacation homes, and any lot where the trimmer sits unused for weeks at a stretch and needs to start on demand. For a lawn equipment lineup that includes occasional power outage backup, our best portable generators guide covers the same 50:1 fuel-mix and ethanol concerns from the generator side.
The honest cons are real and you should know them. First, the 122C is not CARB compliant for sale in California — Amazon will not ship this trimmer to a California address. If you are in California, you need a different gas trimmer or a 60V cordless. Second, 16 pounds is the heaviest trimmer in this roundup, and the curved shaft compounds shoulder fatigue — a harness is required for any half-acre-plus job. Third, the gas-engine maintenance overhead is real. The 122C runs on 50:1 mix (one part 2-cycle oil to 50 parts gasoline — never run straight gas through it). Use ethanol-free fuel where available; ethanol content above 10 percent (E15 and higher) damages 2-cycle carburetors and is the single most common cause of gas-trimmer failure in my client base. Add fuel stabilizer for any storage longer than 30 days, drain the tank for winter storage in cold climates, and budget annual air filter and spark plug attention. None of that is hard, but it is real. If you want the unlimited runtime without the maintenance, the DEWALT FlexVolt 60V is the cordless answer.
Husqvarna 122C 22cc 2-Cycle Gas Curved Shaft String Trimmer
by Husqvarna
The best gas string trimmer for big lots — 22cc Smart Start engine, Air Purge starting, 17-inch swath, and unlimited runtime make the Husqvarna 122C the right call for half-acre-plus and rental properties (outside California).
Pros
- 22cc 2-cycle gas engine with Smart Start technology reduces pull effort by approximately 40 percent versus older Husqvarna gas trimmers — first-pull starts are realistic in warm weather
- Air Purge bulb removes air from the carburetor and fuel system before starting — cuts won't-start incidents that plague every cheap gas trimmer at this price
- 17-inch cutting swath at the $180 price point is wider than every battery trimmer here except the DEWALT FlexVolt — best swath-per-dollar value in the gas segment
- Unlimited runtime as long as fuel lasts — gas wins on rental properties, vacation homes, and any large or neglected lot where battery management is friction
Cons
- Not shippable to California — the 122C is not CARB compliant for sale in California, so check your state before ordering
- 16 lbs is the heaviest trimmer in this roundup, and the curved shaft compounds shoulder fatigue on long sessions — a harness is required for any half-acre-plus job
- Requires 50:1 fuel mix and the full small-engine maintenance calendar — air filter, spark plug, and fuel-system attention every season
Greenworks 40V 12” Cordless — Best Entry-Level Platform
The Greenworks 40V 12-inch is the right ramp into a full cordless outdoor lineup for budget-conscious buyers. At $149 with battery and charger included, it is the lowest 40V-and-above entry point in this roundup, and the Greenworks 40V platform has the broadest tool catalog of any cordless ecosystem outside EGO 56V — 75-plus tools share the same battery, including mowers, blowers, chainsaws, snow blowers, and pressure washers. If you are starting cordless from scratch and want a single platform that covers a full outdoor lineup over the next 5 to 10 years, Greenworks 40V is the most economical place to start.
The auto-feed line advance eliminates bump-feed stops mid-session, which is more important than it sounds — bump-feed interruptions are the second most common trimmer frustration after spool reload, and auto-feed quietly removes that friction every session. The 3-year tool and 3-year battery warranty is best-in-class — the longest combined coverage of any trimmer in this roundup at any price. Combined warranty is the metric that matters because batteries are the most expensive cordless consumable; a 3-year battery warranty turns the most likely replacement cost into a covered cost.
The tradeoffs are 12-inch swath and 40-minute runtime on the included 2.0Ah pack. The 12-inch swath means more passes on lots over a quarter acre — fine for routine maintenance trimming on small lots, slow on bigger jobs. The 40-minute runtime requires a spare battery for half-acre or larger sessions. Most Greenworks 40V buyers eventually own 2 to 3 batteries across their tool lineup, which solves runtime; if you are starting from scratch, plan to add a second 4.0Ah battery within the first year. The trimmer is also the lightest entry point into the Greenworks ecosystem — buying this first, then adding a mower from the best lawn mowers Greenworks options, builds the platform efficiently.
Greenworks 40V 12" Cordless String Trimmer (Battery & Charger Included)
by Greenworks
The best entry-level platform trimmer — Greenworks 40V auto-feed, 3-year tool and battery warranty, and shared batteries with 75-plus tools make the 12-inch Greenworks the right ramp into a full cordless outdoor lineup.
Pros
- Auto-feed line advance eliminates bump-feed stops mid-session — the head senses wear and pays out fresh line without you tapping the head on the ground
- Best-in-class 3-year tool and 3-year battery warranty — the longest combined coverage of any trimmer in this roundup at any price
- Greenworks 40V platform shares batteries with 75-plus tools (mower, blower, chainsaw, snow blower, pressure washer) — strong long-term ecosystem economics
- Lowest 40V-and-above entry point in this roundup at $149 with battery and charger included — the right ramp into cordless for budget-conscious buyers
Cons
- 12-inch swath is the smallest in the battery segment of this roundup — more passes on lots over a quarter acre
- 40-minute runtime on the included 2.0Ah requires a spare battery for half-acre or larger sessions
How to Choose the Best String Trimmer
Start with lot size in actual square feet. Most homeowners over- or under-estimate their lot by 30 percent. Pull the lot dimensions from your county assessor’s website (search “[county name] property records” and enter your address) — they are public record and free. Under 5,000 square feet (small urban lots, townhomes): the BLACK+DECKER corded or WORX 20V is plenty. Between 5,000 and 15,000 square feet (most suburban quarter to one-third acre lots): EGO ST1502SA, EGO ST1623T, or Greenworks 40V are the right calls. Over 15,000 square feet (half-acre-plus, rentals, overgrown lots): DEWALT 60V FlexVolt or Husqvarna 122C gas. The cordless-only narrative you sometimes see in editorial roundups is oversimplified — gas still wins on rentals and any lot where battery state of charge is friction.
Then make the platform call. Cordless trimmers are not standalone purchases — they commit you to a battery ecosystem for a decade. Inventory what you already own. If you have EGO 56V batteries from a leaf blower, the EGO trimmer is effectively discounted. If you have DEWALT 20V tools, the FlexVolt 60V trimmer doubles as a battery upgrade for your existing drill and impact. If you are starting from scratch, EGO 56V has the broadest outdoor catalog, Greenworks 40V has the lowest entry price with 75-plus tool compatibility, and DEWALT FlexVolt has the unique 20V backward compatibility. Match the trimmer to the platform that covers your full outdoor and indoor lineup.
Then line feed, swath, and shaft. If you trim weekly and value time, LINE IQ plus POWERLOAD on the EGO ST1623T is worth the premium — the time savings over a decade of weekly mowing are real. Auto-feed (BLACK+DECKER, Greenworks 40V) is the next best system. Bump feed is reliable but wears the head over time and requires a $12 to $18 replacement every 2 to 3 seasons. Match swath to lot — 12 to 14 inch for small lots, 15 to 16 inch standard, 17 inch for half-acre-plus. Straight shaft for taller users, edging, and attachment compatibility; curved shaft only if you are short and never plan to edge. Edging technique matters too: rotate the head 90 degrees vertical, walk parallel to the edge surface, and keep the line about 4 inches off the soil to avoid chewing the lawn edge into bare dirt.
Storage and seasonal maintenance. Battery trimmers store best at 40 to 80 degrees Fahrenheit with the battery at 50 percent state of charge — never store fully drained or fully charged for long periods. Gas trimmers (the Husqvarna 122C) need either a full tank with stabilizer added or a fully drained fuel system before winter storage; ethanol fuel left in a 2-cycle carburetor over winter is the single most common gas-trimmer failure I see in spring service calls. Clean line residue out of the head every 5 to 10 sessions and inspect the bump head for wear annually.
Buyer's Guide
I have speccd outdoor power equipment for residential clients and property managers for over 15 years. These six factors are what actually decide whether the trimmer you buy this May is still cutting clean lines in 2032 — or sitting in the back of your garage with a stripped bump head and a dead battery. Treat this as a contractor's decision framework, not a marketing checklist.
Power Source — Battery, Gas, or Corded (Yard Size Framework)
Match the power source to your lot size in square feet, not by feel. Under 5,000 square feet — small urban lots, townhomes, condos — a corded 6 to 8 amp trimmer or a 20V battery is the right call. Cord management on a lot that small is not a real burden, and a 20V battery delivers all the runtime you need before fatigue stops you. Between 5,000 and 15,000 square feet, which covers most US suburban lawns from quarter to roughly one-third acre, step up to 40V or 56V battery — the sweet spot for noise, maintenance, and start reliability. Over 15,000 square feet (half-acre-plus, rental properties, lots with overgrown perimeter), 60V battery or 22cc-plus gas are the realistic picks. The 60V DEWALT FlexVolt and Husqvarna 122C both fit this tier. The cordless-only take you sometimes see in editorial roundups is oversimplified — gas still wins on rental properties and any lot where nobody is tracking battery state of charge.
Cutting Swath Width
Trimmer swath ranges from 12 inches at the small end to 17 inches at the contractor end, and that span makes a real difference in time per session. 12 to 14 inch swath (the WORX WG163, BLACK+DECKER BESTA510, Greenworks 40V) is right for tight maneuvering around beds, fence posts, and corners on small to mid lots. 15 to 16 inch swath (the EGO ST1502SA and ST1623T) is the standard sweet spot — covers ground efficiently without becoming awkward in tight spaces. 17-inch swath (the DEWALT FlexVolt, Husqvarna 122C) is for half-acre-plus lots and any property where minutes per session matter — the wider cut covers measurably more ground per pass and reduces battery cycles on a 60V or fuel consumption on a gas trimmer. A swath that is too wide for your lot means awkward maneuvering and damaged ornamental plants; a swath too narrow means a longer session and more passes.
Line Feed System (Bump, Auto, Button, LINE IQ)
The line feed system is the single biggest day-to-day usability factor on any trimmer, and the difference between systems is real. Bump feed (DEWALT FlexVolt, Husqvarna 122C gas) — tap the head on the ground while running to release line. Reliable and cheap, but the bump head itself wears out after 2 to 3 seasons of heavy use and needs a $12 to $18 replacement (yes, the head, not just the line — most homeowners learn this after their first failed bump). Auto-feed (BLACK+DECKER BESTA510, Greenworks 40V) detects line wear and pays out automatically — fewer interruptions but uses more line per session. Button advance (WORX Command Feed) — press a button to release line on demand, more control than bump or auto. LINE IQ (EGO ST1623T flagship) — smart automatic feed with wear sensing, the cleanest system on the market in 2026. Pair LINE IQ with POWERLOAD reload (one-button line replacement) and you have eliminated the two most common trimmer frustrations entirely. You pay for it, but on a tool you use weekly for a decade, the time savings add up.
Shaft Type — Straight vs Curved (Reach, Edging, Attachments)
Shaft geometry decides reach, ergonomics, and whether you can edge cleanly. Straight shafts (EGO ST1623T, ST1502SA, DEWALT FlexVolt, Greenworks 40V) put the head further from your feet, deliver more reach under decks and shrubs, and rotate cleanly to a vertical edge along sidewalks and driveways. They are also the only shaft type that supports universal attachment systems — the DEWALT FlexVolt is attachment-capable, and its straight shaft accepts edger, pole saw, brush cutter, and cultivator heads on the same powerhead. Curved shafts (WORX WG163, BLACK+DECKER BESTA510, Husqvarna 122C) put the head closer to your feet, which feels more balanced for shorter users but is awkward for anyone over 6 feet tall. Curved shafts cannot rotate vertically as cleanly for edging, which is why the WORX and BLACK+DECKER both add separate 2-in-1 mechanisms (the head tilts or pivots) to compensate. If you are tall, plan to edge regularly, or want attachment compatibility, go straight shaft.
Weight, Balance, and Ergonomics
Trimmer weight in this roundup ranges from 5.4 pounds (BLACK+DECKER BESTA510 corded) to 16 pounds (Husqvarna 122C gas), which is a 3x difference that you feel within 10 minutes of continuous use. For routine 15 to 30 minute trimming sessions on a quarter-acre lot, anything under 8 pounds is comfortable without a strap — the WORX, BLACK+DECKER, and EGO ST1502SA all fit. For half-hour-plus sessions or on lots over half an acre, plan on a shoulder strap or harness regardless of trimmer weight — even an 8-pound trimmer becomes fatiguing after 45 minutes held at arm's length. The 12.7-pound EGO ST1623T and 13.5-pound DEWALT FlexVolt both ship with strap-compatible shafts; the 16-pound Husqvarna 122C effectively requires a harness for any half-acre-plus session. Carbon fiber telescopic shafts (the EGO ST1623T) are genuinely lighter and stiffer than aluminum at the same length and are the right call for taller users or anyone with chronic shoulder issues.
Attachment & Battery Platform Ecosystem
The most underrated decision in any cordless trimmer purchase is what battery platform and attachment system you are committing to for the next 10 years. EGO 56V is the broadest cordless outdoor ecosystem on Amazon — mowers, blowers, trimmers, chainsaws, snow blowers, pressure washers all share batteries. Greenworks 40V is the next broadest with 75-plus tools on the platform and the lowest entry price. DEWALT 60V FlexVolt is the only platform here whose batteries run as 9.0Ah packs on existing DEWALT 20V drills, saws, and impacts — best platform economics if you already own DEWALT power tools. On the attachment side, only the DEWALT FlexVolt in this roundup is attachment-capable — the same powerhead accepts edger, pole saw, brush cutter, and cultivator heads on a single shaft. Ryobi's Expand-It and Echo's Pro Attachment Series compete in the same space but neither hit our top picks for raw trimmer performance. Inventory the batteries you already own before buying. If you have three EGO 56V packs from a leaf blower, the EGO trimmer is effectively discounted. If you are starting from scratch, our [best cordless leaf blowers](/best-cordless-leaf-blowers/) and [best lawn mowers](/best-lawn-mowers/) guides use the same platform-first logic — match the trimmer to the platform that covers your full outdoor lineup.
Final Verdict
The EGO Power+ ST1623T is the best string trimmer for most homeowners in 2026. LINE IQ automatic line feed and POWERLOAD one-button reload remove the two most common trimmer frustrations entirely, the carbon fiber telescopic shaft adjusts for any user in the household, and the 60-minute runtime on the included 4.0Ah battery realistically handles a full one-acre lot in a single session. EGO’s 5-year tool and 3-year battery warranty backs the strongest cordless platform record on Amazon. If you are replacing an aging gas trimmer and want one tool that just works for the next decade, the ST1623T is the pick.
For small urban and townhome lots, the WORX WG163 GT 3.0 at under one hundred dollars with two batteries and a 2-in-1 edger function is the right budget call — 27,500-plus verified reviews at 4.4 stars is the longest reliability record in the entire trimmer category. For half-acre-plus lots, neglected grass, and DEWALT 20V owners, the DEWALT DCST972X1 60V FlexVolt is the upgrade pick — contractor-grade torque, attachment-capable shaft, and FlexVolt batteries that double as 20V upgrades. And for rental properties, vacation homes, and any lot outside California where unlimited runtime matters more than maintenance overhead, the Husqvarna 122C is the best gas option at $180.
Whichever you pick, the long-term value move is platform-first thinking. Pair your trimmer with a matching battery-platform leaf blower from our best cordless leaf blowers guide and a mower from the best lawn mowers lineup — shared batteries across the full outdoor trio is the single biggest cost-of-ownership advantage in residential outdoor power equipment in 2026. The best trimmer is the one that matches your lot size, your slope, your platform, and the maintenance overhead you are actually willing to take on.
Frequently Asked Questions
What is the difference between a string trimmer, weed eater, and weed wacker?
Should I buy a battery, gas, or corded string trimmer?
How long do battery string trimmers last on a charge?
What is the difference between bump feed and auto-feed line systems?
What line thickness should I use in my string trimmer?
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About the Reviewer
Jake Morrison, Licensed General Contractor
B.S. Construction Management, Purdue University
Jake Morrison has spent 14 years in residential construction and home renovation before founding DIYRated in 2026. After helping hundreds of homeowners choose the right tools and materials for their projects, he started writing the product guides he wished existed when he was starting out. Jake tests every major product recommendation in his workshop in Indianapolis and focuses on real-world performance over spec-sheet marketing.