Best String Trimmers for 2026: Battery & Gas Weed Eaters Compared
By Nate Sawyer, Editor · Updated July 2026
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The right string trimmer depends on your yard size and how tough your weeds are, not on brand hype. We compared these picks on published specs, cutting swath, power source, line-feed system, runtime, and weight, to match a compact battery unit or a large gas trimmer to the job rather than testing them ourselves. Small to medium lawns are well served by a light 20V-56V battery trimmer that starts with a trigger and needs no fuel; large, weed-heavy lots favor a gas trimmer's wider swath and refuel-and-go runtime. Whichever you pick, wear eye protection and closed shoes, since a spinning line throws debris fast.
Per specs and owner reviews, EGO's ST1521S is a 15-inch 56V string trimmer whose POWERLOAD head auto-winds line to skip messy hand-feeding, a quiet, low-maintenance pick for suburban yards and edging. The ~45-minute runtime can fall short on large lots, and it uses .095-inch line, not gas-grade line. Wear eye protection.
- Small yards
- Medium yards
- Battery
- Edging
- Low maintenance
Pros
- POWERLOAD head reloads line automatically, skipping the usual messy hand-winding
- Carbon-fiber straight shaft plus brushless motor is quiet, low-vibration, and starts instantly
- Shares one 56V battery platform with EGO blowers, mowers, and edger attachments
Cons
- 2.5Ah runtime (~45 min) can fall short on large lots without a spare pack
- Kit price runs higher than a comparable gas trimmer up front
- Bump/auto head still relies on pre-cut .095 in line, not thicker gas-grade line for heavy brush
Per specs and owner feedback, Echo's SRM-225 is a proven 21.2cc straight-shaft gas trimmer whose 17-inch swath powers through tall grass, thick weeds and light brush, with a Speed-Feed 400 head for big, all-day jobs. It needs 2-stroke mixing and tune-ups, weighs 11.5 lb and is louder than battery. Wear eye and hearing protection.
- Large yards
- Tough weeds
- Gas
- Commercial
- Long runtime
Pros
- 21.2cc engine and 17 in swath power through tall grass, thick weeds, and light brush
- Speed-Feed 400 head reloads line in seconds without opening the spool
- Refuel-and-go runtime and a 5-year residential warranty suit big or all-day jobs
Cons
- Requires 2-stroke oil mixing, fresh fuel, and periodic tune-ups
- At 11.5 lb it is heavier and louder than most battery trimmers
- Emissions and pull-start make it overkill for small, tidy yards
The Worx WG163 GT 3.0 is a light, affordable 20V trimmer that doubles as a wheeled edger, making it a practical two-in-one for small and medium yards. Command Feed line advance and two included batteries add convenience, but the 12-in swath, thin 0.065-in line, and modest 2.0Ah packs mean it is built for tidy suburban lawns rather than large, weed-heavy lots where a gas trimmer pulls ahead.
- Small yards
- Budget
- Trimmer and edger combo
Pros
- Very light at about 5.5 lb with a telescoping shaft, comfortable for shorter users and long trimming sessions
- Converts tool-free from a string trimmer to a wheeled edger, covering two jobs in one affordable tool
- Command Feed advances line at the push of a button and the kit includes two batteries, so one charges while you work
Cons
- 12-in swath and 20V power are best for small-to-medium lawns, not large lots or heavy weeds
- 0.065-in single line wears fast in tough growth and needs frequent refills
- Small 2.0Ah batteries give limited runtime, so big jobs mean swapping or waiting on a recharge
Still deciding? Compare them
Frequently Asked Questions
- Is a battery or gas string trimmer better?
- For small to medium yards, a 20V-56V battery trimmer like the EGO or Worx is quieter, lighter to maintain, and plenty powerful. For large lots, dense weeds, or all-day use, a gas trimmer such as the Echo SRM-225 offers a wider swath and refuel-and-go runtime that batteries cannot match.
- What cutting swath do I need?
- A 12-15 in swath suits most residential yards and gives good control near beds. Step up to a 17 in gas swath like the SRM-225 only if you regularly clear large areas or heavy growth, where the wider path saves passes.
- What is the difference between bump-feed and other line systems?
- Bump-feed heads advance line when you tap the head on the ground, which is cheap and reliable but interrupts work. Command-feed systems like the Worx WG163 advance line with a button while running, and EGO's POWERLOAD reloads the spool automatically. Choose the convenience level you want, then keep spare line on hand since all of them consume it.