Best String Trimmers Under $100 (2026)

Greenworks supplies a 2.0Ah battery and charger with this 24V trimmer, so it works out of the box. The aluminum shaft telescopes to fit your height, which is a real comfort feature in a class where many trimmers have a fixed length. A button switches between trimming and edging, and the head pivots to follow sloped ground and tree roots.

The 12-inch swath is typical for a cordless of this size. A single 2Ah pack is modest, so runtime suits a small yard of fifteen to thirty minutes of work. Compared with the folding 20V model, it has a better-known brand and an adjustable shaft, but only one battery.

Because Greenworks sells a broad 24V range, the pack can be shared with a blower or other tools, which lowers the real cost over time. Store the battery indoors and replace the line before it wears short. A good routine is to run the battery down on a job and then charge it fully, rather than topping it up repeatedly. Keep the pivot head locked while trimming so the angle does not drift.

This corded trimmer relies on a 6.5 amp motor and a Powerdrive transmission to put torque where it counts. EASYFEED advances line with a push of a button, and the head rotates to a wheeled edge guide for sidewalk work. It never runs out of charge.

Compared with the Greenworks, it is more powerful for the money and has unlimited runtime, but you need an outdoor cord and a nearby outlet. Compared with the folding 20V, it has a bigger motor and a longer track record.

A corded trimmer from a mainstream brand is also easy to repair and replace spools for. Coil the cord loosely and inspect it often. The push-button feed saves bumping the head on concrete, which also saves the housing from scuffs. Wear eye protection, since a 6.5 amp head throws gravel hard.

The BLACK+DECKER 40V MAX adds a power command dial that lets you select maximum strength for thick grass or save charge on light work, a feature the cheaper cordless units lack. A Powerdrive transmission boosts torque at the head and the swath is 13 inches. The listing is based on a robust 40V lithium-ion battery that you must confirm is included.

If you already own a 40V MAX battery from another tool, it is among the best tools in this guide. If you do not, the missing battery and charger can double the real cost, so compare it only on a complete-kit basis. Against the Greenworks 24V it has more power and a dial; against the corded 6.5 amp unit it adds freedom.

Keep the pack indoors and use the lower power setting for light edging to extend runtime. Start on the high setting for tall growth and drop it for edges, which stretches the pack. Mark your battery with the date you bought it so you can judge its age.

The Greenworks 40V trimmer is listed explicitly without a battery or charger. It uses .065-inch line with an auto-feed head and a variable-speed trigger that lets you ease off near flowerbeds and open up for thick grass.

As a bare tool it is attractive only if you already own 40V Greenworks batteries. If you do, it is a capable, well-supported tool. If you do not, you must add a battery and charger, which pushes the total beyond the cap.

Compared with the Greenworks 24V kit, it is stronger but incomplete. Store the tool dry and keep spare line. Because the pack is separate, buy a spare if you plan to trim for more than twenty minutes. Check that the platform sells the other tools you may want, such as a blower.

This 20V trimmer has a shaft that folds 180 degrees in three ways for vertical storage, a handy feature for small garages. A 9,500 RPM motor and intelligent auto-feed that detects line length are the other selling points, and two 2Ah batteries are included.

Its storage trick makes it easy to put away in a closet. Compared with the Greenworks 24V, it ships with two batteries but has a lesser-known brand and no telescoping shaft.

The folding joint is a mechanical weak point, so check that it locks firmly each time you open it. Make sure the folding joint clicks fully into place before pulling the trigger, and wipe grass out of the hinge. Store it upright on its hook and keep batteries elsewhere.

At 3.5 pounds this is the lightest cordless in the guide. It ships with two 2Ah batteries and offers a 12-inch swath with trimmer, edger and weed cutter modes.

It is the lightest to hold but the weakest on thick growth. Compared with the folding model, it is lighter but less storage friendly.

Good for a tiny yard. It is the right tool for older users or anyone whose wrists tire quickly. Do not use it for dense brush, where the light motor will stall and the packs will drain.