
Best Battery Powered String Trimmers for Different Yards
RYOBI RY402110 leads for its wide swath and published kit runtime; other picks suit attachment use, STIHL and FLEXVOLT owners.
Best picksGood Meat Thermometers for Every Kind of Cook
Best picksBest WiFi Extenders: Which Range Extender Should You Buy?
Best picksBest Dash Cams for Cars in 2026
Best picksBest Radar Detectors for Cars: Models Compared
Best picksGood Winter Gloves for Cold Weather: Five Useful Picks
Best picksBest Headlamps: Six Lights Compared for Different Uses
Best picksTop 10 Best Battery-Powered Weed Eaters for Different Yards
Best picksBest Portable Air Coolers for Patios, Workshops and Small Spaces (2026)
Best picksBest Air Purifier for Bedroom in the US: Quiet Models ComparedStart here

RYOBI RY402110 leads for its wide swath and published kit runtime; other picks suit attachment use, STIHL and FLEXVOLT owners.

STIHL FSA 50 suits edging flexibility; FSA 70 R targets more demanding homeowner work, and FSA 57 is aimed at smaller lawns.
Our picks
Official manufacturer image
Official manufacturer image
Official manufacturer imageBest picks

RYOBI RY402110 leads for its wide swath and published kit runtime; other picks suit attachment use, STIHL and FLEXVOLT owners.

STIHL FSA 50 suits edging flexibility; FSA 70 R targets more demanding homeowner work, and FSA 57 is aimed at smaller lawns.

RYOBI offers a wide adjustable swath, while STIHL options cover edging conversion and smaller-lawn trimming.

For a practical balance, start with the Ryobi 40V 12-inch String Trimmer; choose DEWALT 60V for heavier growth or WORX 20V for lighter edging and trimming.
Common questions
Voltage alone is not a full performance comparison. Consider motor, head, line and model-specific specifications.
Only if the tool maker explicitly approves it; similar voltage does not prove compatibility.
Select an approved capacity for expected work and account for the weight of a larger pack.
Follow the battery maker charging, storage and temperature directions and use the specified charger.