10 Best Ryobi String Trimmers 2025 in the United States

The Ryobi OBC1820B 18V ONE+ Brush Cutter is a versatile tool that can function both as a brush cutter and a string trimmer, thanks to its 2-in-1 design. It is powered by an 18V battery, making it a cordless option that provides convenience and flexibility during use. The 20cm hardened steel blade is effective for tough jobs, while the 30cm line trimmer cutting path helps you finish tasks quickly.

This model is especially suitable for small brushing, finishing, and maintenance work. The soft-grip bike handle with variable speed control ensures comfort and extended run time during operations. However, it is important to note that this product is sold as a 'body only' tool, which means you will need to purchase the battery and charger separately if you don’t already own them from other Ryobi ONE+ tools.

Weighing 15.57 pounds (7.08 kilograms), it may be a bit heavy for prolonged use, but it’s manageable for most users. The Ryobi OBC1820B is a robust and flexible option for those who already have Ryobi ONE+ batteries and are looking for a reliable tool to handle both tough and light trimming tasks.

The RYOBI 40-Volt Lithium-Ion Cordless String Trimmer offers a versatile and powerful solution for garden maintenance. It features a 40-volt lithium-ion battery, which provides substantial runtime and power. The included 4.0 Ah battery and 90-minute charger ensure that you can get back to work quickly.

This trimmer is particularly notable for its attachment capability, compatible with both RYOBI expand-it and other universal gas attachments, adding to its versatility and potential cost savings on additional tools. The adjustable cutting width of 13 to 15 inches allows users to balance between longer runtime and a wider cutting path, catering to different lawn sizes and types of trimming tasks. The reel-easy bump-feed string head simplifies the process of reloading the line, while the variable speed trigger gives greater control over cutting power and efficiency.

Weighing in at 13.77 pounds, it is relatively manageable though might be a bit heavy for some users during extended use. This product is best suited for users looking for a powerful, flexible, and easy-to-maintain trimmer for medium to large yards.

The RYOBI 40V HP Brushless Whisper Series string trimmer is a solid choice for those looking for a cordless, battery-powered trimmer that balances power and quiet operation. It offers a wide 17-inch cutting width, which is good for covering larger yard areas efficiently. The carbon fiber straight shaft makes it lighter and easier to handle at 12 pounds, which is manageable for most users but might still feel a bit heavy for very long trimming sessions.

One of its standout features is the REEL EASY+ bump feed system with a SPEED WINDER crank, allowing you to reload the cutting line quickly—under a minute—so you spend less time maintaining and more time trimming. The variable speed trigger with a two-speed switch gives some control over power and battery life, while the 40V brushless motor provides 4 times more power than earlier models, making tough grass and weeds easier to cut. The trimmer also runs at 80% quieter than gas models, which is a big plus if you want to avoid noisy yard tools.

It uses a 6Ah lithium-ion battery (sold separately) that charges fast but keep in mind you need to buy the battery and charger if you don't already have one. At 12 pounds and with its straight carbon fiber shaft, it’s well-suited for users who want a mix of power, durability, and relatively lightweight design, especially for medium to larger yards. The only downsides might be the weight for some and the need to purchase the battery separately, but its quiet operation and efficient line feed system make it a convenient and powerful option for most homeowners.