Best Auto Feed String Trimmers of 2026

"As someone who has used a lot of weed eaters, I can confidently say this Black & Decker model stands out for its consistent power and lightweight feel. I appreciate that it’s much more powerful than many battery or electric trimmers I’ve tried, especially at such an affordable price. Not having to worry about recharging batteries is a huge plus, and the solid construction makes it a keeper for me."

"I've had a great experience with this string trimmer. It’s light, easy to maneuver, and starts instantly—no frustrating setup. The cutting strength easily handles thick grass and weeds, and I find it comfortable for extended use. Replacing the string is straightforward, and the adjustable handle adds to the convenience. For the cost, it’s a fantastic addition to my yard tools."

"I was skeptical after struggling with other brands, but this trimmer restored my faith in string trimmers. It was easy to assemble and ready to go right out of the box. The edger wheel works great for cleaning up sidewalks, and I’ve had no issues with the line until it ran out. Swapping the spool was simple, and I’m happy with the performance overall."

"I really appreciate how lightweight and easy to handle this trimmer is, especially for someone like me who doesn't want to deal with gas or cords. The battery system is versatile and works with my other Black & Decker tools, which saves me both time and money. The auto-feed string feature is a big plus as well—no more manual adjustments. For an average yard, this trimmer is more than enough."

"As a 5'2” senior woman, I was skeptical about a battery-powered trimmer, but this one exceeded my expectations. It's easy to adjust for my height, and I can use it for an hour without fatigue. The string feeds itself perfectly—no tangling or bumping required. The battery is reliable and recharges fast. Honestly, I ended up looking for more weeds just to see it in action. Highly recommend!"

"I've owned two of these trimmers and, while they're not built for heavy-duty jobs, they do a great job on moderate to light grass. The lightweight design makes long trimming sessions manageable, but if I let my yard get overgrown, I need to use a gas trimmer. The battery life is okay, but for bigger properties, you'll want extra batteries. Overall, it's a solid option if you keep up with maintenance."

"I've tried multiple string trimmers over the years, and this one from Greenworks truly stands out. The 60V power is impressive, able to tackle thick weeds effortlessly, and the battery lasts long enough for substantial jobs. It's also much quieter and simpler to operate compared to gas models. I appreciate the compatibility with attachments from other brands and the inclusion of a high-capacity battery and charger. For the price, it's an outstanding value, and I think this could be the last trimmer I'll ever need."

"I recently got this weed eater and, overall, I'm impressed with its performance on thick grass and weeds. The battery-powered design makes yard work much more convenient. However, the battery is pretty heavy, which makes it a bit tiring to use for long stretches, especially for someone my size. If you're on the smaller side, you might find the 20V or 40V models easier to handle, but for the price, it's still a great buy."

"After getting tired of maintaining my old gas trimmer, I switched to this cordless model. While it's not quite as powerful as my previous gas unit, it's definitely easier to manage and lighter, especially with the smaller battery. The blower works well for clearing debris, and the battery system is convenient. I had a bit of trouble with the trimmer string sticking, but a little silicone spray fixed the issue. All in all, I would recommend this combo, particularly for those looking for a lighter, low-maintenance solution."

"I've been switching all my lawn tools to the Greenworks 40V system, and this string trimmer was my latest addition. It's impressively lightweight, has low vibration, and the size makes it really comfortable to use. The performance is great—it powers through everything in my yard, and the battery lasts long enough for a full job. I did have a minor issue with the battery's charge indicator lights not working, but overall, I'm very pleased with the trimmer itself."

"As a first-time female user of a weed wacker, I found it easy to handle and operate. It worked well for both edging and trimming in my yard, and the battery lasted long enough for my moderate-sized yard. The only minor issue I faced was having to manually feed the wire once, but it was easy to sort out."

"This is my third Greenworks product, and I like that I can swap the 40V battery among my tools. The edger works well and has enough power for my front yard. However, the safety switch is a bit tough on my forearm and hand, and the weight distribution feels uneven. Still, the performance and convenience make it a good fit for my needs."

"I appreciate how light and easy this trimmer is to handle, especially since I have some back and knee problems. The two included batteries and extra line are very convenient, and charging is pretty fast. The only minor downside is that the battery runs down after about 15-20 minutes in hot weather, but overall, it's a great value for the money."

"This tool is perfect for my small yard—it’s lightweight, simple to use, and does a great job edging and trimming. Having two batteries means I can work for about an hour. I’m a big fan of the automatic feed for the string. If your yard isn’t overgrown, I highly recommend it. Just keep in mind it’s not meant for tackling really thick or rough patches."

"I got this for my uncle, and he loves how quiet, lightweight, and easy it is to move around. The 12-inch cutting width is great for tight spaces, and the auto line feature works smoothly. The two batteries and fast charger are a real plus. While it’s not for heavy brush, it's ideal for regular grass and everyday yard work without the hassle of gas trimmers."

"I've been using WORX gardening tools since the summer of 2020 and they've consistently impressed me. The trimmer easily switches between trimming and edging, powering through my thick grass and dense weeds with no trouble. It's super lightweight compared to my old Black & Decker, and the battery life is excellent—I can do both my front and backyard on a single 40V charge. I love that the batteries are interchangeable between tools, and customer service has always been top-notch."

"As a middle-aged woman, I appreciate how lightweight and easy to handle this trimmer is. It cuts through overgrown ivy and tackles all the edging I need. Swapping batteries is simple, and the Power Share feature means I can use my other WORX batteries. Changing the spool is a breeze, and while the free spools for life require shipping, I found them affordable elsewhere. If you're looking for a budget-friendly, user-friendly trimmer, this one is a great choice."

"For me, this trimmer is a solid 7.8 out of 10. It's light, the battery is easy to install, and it's much quieter than gas options. The pre-wound refills are super convenient, though the line can be a bit thin and sometimes sticks together. It’s perfect for smaller jobs and switching from trimming to edging is effortless, but edging power could be stronger."

"I’m a 74-year-old petite woman, and I’ve been using this tool on a large property with multiple buildings. The battery lasts about half an hour, which is exactly as advertised, and I find it’s actually helpful since it encourages me to take breaks. The string doesn’t always extend perfectly, but pressing the button by the line hole helps. For the price, I think it’s a fantastic deal—I’d buy it again without hesitation."

"I needed something lightweight for touch-ups between lawn service visits, and this has been great. Assembly was a breeze, and it came with both a battery and charger. The battery runs for about 20 minutes, but it charges very quickly. So far, it’s been plenty powerful for edging and weeding around my house."

"As a 65-year-old woman, I usually leave yard tools to my husband, but this time I tried it myself. It’s so easy to handle and lightweight! After just a couple of uses, I’m really impressed with how well it works. For the price, it’s an excellent product. I’m happy to recommend it."

"I'm honestly not a fan of yard work, especially dealing with Florida heat and my health issues. But this trimmer has been a game changer for my backyard full of solar panels. I was amazed by the pre-loaded string and the clever auto line release—it saves so much frustration! The battery lasts about 50 minutes, and as a battery enthusiast, I even built my own huge battery pack for it. The trimmer is tough and handles weeds like a champ. My only small gripe is the lack of pre-cut 16" string replacements, but overall, it's better than any gas trimmer I've owned."

"At first I was reluctant to try an electric weed eater because I remembered old weak models from my childhood, but this one is a beast! It powers through thick brush easily. The battery life lets me do three properties on a single charge, and I love the auto-extending string. Adjusting the length is really handy, and overall the design is super user-friendly. If you're on the fence, I say just go for it."

"After three years of use on my 6 acres, this trimmer has been reliable and easy to maintain. String loading is simple—just thread and press a button. It's maybe not the 'best' out there, and my wife wishes it was a little lighter and shorter, but it's dependable and has replaced my old wired and gas trimmers. The interchangeable battery is very convenient if you have other compatible tools."

"I was searching for something I could actually handle since my old Dewalt trimmer was just too heavy for me. This trimmer is a game-changer—lightweight, easy to put together, and the battery lasted through my whole yard. I love the adjustable handle and how it doubles as an edger. Best of all, my back doesn't ache afterward. It might be too light for some, but for me, it's perfect for regular yard work."

"I bought this for my husband and he ended up spending hours outside trimming without having to deal with an extension cord. He was pleased with how easy it is to use and how long the battery lasted—even though it wasn’t fully charged. After several months, the trimmer is still going strong. For the price, it’s been a great value and a reliable tool for us."

"As a complete novice to yard work, I found this trimmer remarkably easy to use and light enough to maneuver comfortably. With both batteries, I can handle my quarter-acre yard without any issue and still have power left. The durable build and comfortable grip have made my yard work experience much more pleasant. I'm very satisfied with this purchase."

"I found this trimmer to be lightweight and simple to handle, especially compared to heavier models. The two batteries included mean I can keep working without much interruption, and the assembly was straightforward. While it's not the strongest trimmer out there, it gets the job done for regular yard maintenance and is a good value for the cost."

"I purchased this for my grandfather since his gas-powered trimmer was becoming too cumbersome. He appreciates that it's light and the length is comfortable for him (he’s 5'3"). The edging feature works surprisingly well, and the battery life easily lasts through trimming around a medium-sized home. If you’re not tackling overgrown or dense grass, this is a very solid choice."

"I needed something lightweight and manageable, and this fit the bill perfectly. I can easily use it around the yard, and it isn’t too loud. The fact that it comes with two battery packs is a big plus, keeping me powered up for all my trimming. My husband even borrowed it and was impressed by how well it works despite its compact size."