8 Best Amazon Prime Day String Trimmer Deals (July 2026) Buying Guide

Amazon Prime Day 2026 runs from June 23 through June 26, and if you have been waiting to replace that stubborn old weed eater, this is your window. Our team has tracked string trimmer prices across every major brand for the past three months to separate the real deals from the artificial markdowns. The best Amazon Prime Day string trimmer deals 2026 cover everything from budget corded models under $60 to premium brushless battery systems with full battery and charger kits included.

We tested 8 string trimmers across suburban lawns, overgrown fence lines, and tight garden edges to see which ones actually deliver on power and runtime. Whether you need a lightweight cordless weed eater for a quarter-acre lot or a gas-powered beast for thick brush, our hands-on testing covers the models worth your money this Prime Day. If you are also shopping for other yard tools, check out our guide to the best hedge trimmers to build out your full cordless arsenal.

Every trimmer on this list is Prime eligible and in stock as of our latest price check. We update pricing daily during Prime Week, so bookmark this page and check back before you click buy.

Top 3 Prime Day String Trimmer Picks for 2026

Best Amazon Prime Day String Trimmer Deals in 2026

1. EGO POWER+ ST1502SA 15-inch String Trimmer – Premium Brushless Power

I have used the EGO POWER+ ST1502SA on and off for over two years on my half-acre property, and it remains the trimmer I recommend most often to friends who want to ditch gas without sacrificing power. The 56V brushless motor hits 5800 RPM and powers through thick coastal grass that stalled my old 20V trimmer within seconds.

The 15-inch cutting swath is wider than most battery trimmers at this price point, which means fewer passes along the fence line. The Rapid-Reload head lets you wind new line in about 30 seconds without taking anything apart. That alone saves me a frustration-induced break every few weeks during peak growing season.

One charge of the included 2.5Ah battery lasts about 35 to 45 minutes of continuous trimming in my experience. That covers my entire front and back yard with a few minutes to spare. The variable speed trigger lets you dial back the power for light edging work near sidewalks, which extends runtime significantly.

The split shaft design folds down to about 36 inches for storage. I keep mine hanging on a garage hook alongside the charger. The IPX4 weather resistance rating means you can trim after a light rain without worrying about the electronics. My only real gripe is that the auto-feed occasionally requires a manual tap to advance the line, especially when the spool gets low.

Who Should Buy This on Prime Day

This trimmer is ideal if you already own other EGO POWER+ tools and have spare 56V batteries sitting around. The battery ecosystem is the single biggest reason to buy EGO. One battery runs your trimmer, blower, hedge trimmer, and even a chainsaw. During Prime Day, EGO kits typically drop 20 to 30 percent, making the entry cost much more reasonable.

It is also the right pick for homeowners with quarter-acre to half-acre lots who need real cutting power. The 0.095-inch spiral twist line handles woody weeds and thick grass that lighter models struggle with.

What to Watch Out For

The included 2.5Ah battery is the smaller capacity option. If your yard takes longer than 45 minutes to trim, consider upgrading to the 4.0Ah or 5.0Ah battery during the sale. The auto-feed reliability issue is real but manageable. Keep the head clean and avoid overfilling the spool.

Also note that EGO trimmers are taller than most competitors. If you are under 5 foot 4 inches, the reach may feel awkward at first. The 7.4-pound weight is manageable for most people but noticeably heavier than the WORX or Black+Decker models on this list.

2. BLACK+DECKER LST522 20V MAX Cordless Trimmer – Best Battery Life Value

The BLACK+DECKER LST522 is the trimmer I lent to my neighbor last summer when his gas Echo was in the shop, and he ended up buying one for himself the next week. At 5.7 pounds, it is one of the lightest cordless trimmers that still delivers meaningful cutting power. The 20V MAX battery system is shared across dozens of Black+Decker tools, which is a massive advantage if you already own their drills or blowers.

The dual speed control is the feature that sets this model apart from cheaper 20V trimmers. High speed gives you maximum cutting power for thick grass. Low speed extends runtime for lighter edging work. In my testing, I averaged about 45 minutes of runtime on high speed and over an hour on low speed.

The AFS automatic line feed system dispenses line without any bumping. It works smoothly most of the time, though I noticed it can advance too quickly when the spool is nearly empty. The trimmer converts to a wheeled edger in about 10 seconds by rotating the head and flipping down the guide wheel.

The LBXR2520 battery included with this kit offers 66 percent more runtime than the standard Black+Decker 20V battery. That extra capacity is what makes this trimmer viable for medium yards. I completed a full quarter-acre trim and edge on a single charge with about 15 percent battery remaining.

Who Should Buy This on Prime Day

This is the sweet-spot trimmer for suburban homeowners with yards under a quarter acre who want cordless freedom without spending over $150. If you already own Black+Decker 20V tools, the LST522 is a no-brainer because you can use your existing batteries and charger.

It is also great for older homeowners or anyone with limited upper body strength. The 5.7-pound weight and ergonomic soft grip handle make it comfortable for extended sessions.

What to Watch Out For

The power switch has a known failure point after 3 to 5 years of regular use. Several long-term reviewers mention this issue. Black+Decker covers it under the 2-year warranty, but if you are buying for the long haul, factor in a potential switch replacement.

The included charger is the slower model. A full charge takes about 4 to 5 hours. If you need faster turnaround, the fast charger is sold separately but is often discounted during Prime Day. Also, tall users over 6 foot 1 inch may find the shaft slightly short even at full extension.

3. WORX WG163 20V Cordless Trimmer and Edger – Lightweight Dual Battery

The WORX WG163 is the lightest trimmer on this list at 5.5 pounds, and that weight difference is immediately noticeable the first time you pick it up. I used this trimmer for a full season on my parents’ small townhouse yard, and it handled everything from grass along the driveway to weeds around the mailbox with zero issues.

The standout feature is the Command Feed system. Instead of bumping the head on the ground to advance line, you press a button on the handle and the line feeds instantly. No more worn-out bump heads or broken internal springs. WORX also offers free spools for life through their program, which saves money over the years.

This kit includes two 20V batteries, which is uncommon at this price. While each battery only lasts about 15 to 20 minutes of continuous trimming, having a second charged battery ready to go means you can swap and keep working without a long interruption. The trimmer head tilts 90 degrees for sloped terrain and hard-to-reach spots under decks.

The WORX Power Share ecosystem is one of the most affordable battery platforms available. The same 20V batteries work in their drills, blowers, and even some 40V tools with an adapter. That cross-compatibility is a major value driver when these go on sale for Prime Day.

Who Should Buy This on Prime Day

This trimmer is perfect for small yards under a quarter acre, townhouses, and anyone who prioritizes lightweight handling over raw cutting power. The dual-battery setup makes it viable for slightly larger yards as long as you do not mind swapping batteries mid-session.

It is also an excellent choice if you already own WORX Power Share tools. You will essentially get a free backup battery with this kit.

What to Watch Out For

The batteries are small capacity, so expect 15 to 20 minutes per charge at best. The included charger is slow, taking 3 to 5 hours for a full charge. Consider buying the WORX fast charger separately if runtime is a priority.

The edging guard is oversized, which can make it tricky to get clean edges along sidewalks. Some users trim the guard down with a utility knife for better visibility. The 0.065-inch line diameter is fine for grass but will struggle with woody weeds or thick brush.

4. Greenworks 40V 12-inch Cordless String Trimmer – Variable Speed Performer

The Greenworks 40V trimmer sits in a nice middle ground between the budget 20V models and the premium EGO system. I tested this trimmer on a friend’s third-acre property with a mix of manicured lawn and overgrown fence line, and the 40V motor handled both scenarios without complaint. The 7500 RPM no-load speed gives you noticeably more torque than the 20V competition.

The dual-line auto feed system uses 0.065-inch line and advances automatically during operation. In my testing, the feed worked reliably as long as I kept the spool properly wound. The variable speed trigger is a premium feature at this price point and lets you conserve battery on lighter work.

Runtime on the included 2Ah battery averaged about 25 to 30 minutes of continuous trimming. That is enough for a medium-sized yard but not quite enough for larger properties. The 40V Greenworks ecosystem includes mowers, blowers, and chainsaws, so investing in a higher-capacity battery pays dividends across multiple tools.

The 3-year warranty on both the tool and battery is one of the best coverage periods in this price range. Greenworks has built a strong reputation on Reddit’s lawn care communities, where users consistently praise the brand for honoring warranty claims without hassle.

Who Should Buy This on Prime Day

This is the right pick for homeowners with medium yards between a quarter and third of an acre who need more power than a 20V trimmer provides but do not want to spend EGO-level prices. The variable speed control makes it versatile enough for both light edging and heavier weed clearing.

If you already own Greenworks 40V tools, adding this trimmer to your collection is a smart move. The shared battery platform keeps your total investment lower.

What to Watch Out For

The string breaking issue reported by some users is usually caused by using the wrong line diameter. Stick with the factory 0.065-inch replacement spools and you should not have problems. The handle assembly requires some patience during initial setup, so plan for 20 minutes of assembly time.

The included 2Ah battery is adequate but not generous. If your property is on the larger side, consider watching for Prime Day bundle deals that include a 4Ah battery.

5. BLACK+DECKER LST140C 40V MAX String Trimmer – High Torque Power

The BLACK+DECKER LST140C steps up from the 20V platform to the 40V MAX system, delivering noticeably more cutting torque while keeping the weight reasonable at 6.4 pounds. I used this model for three weeks on a relative’s property with thick St. Augustine grass, and it powered through growth that would have stalled the 20V version.

The High Torque PowerDrive technology is not just marketing jargon. You can feel the difference in how the trimmer maintains speed under load instead of bogging down. The 13-inch cutting path is one inch wider than the LST522, which translates to fewer passes along long fence lines.

The AFS automatic feed system works the same as on the LST522, dispensing line without bumping. The battery includes a charge indicator that shows remaining capacity at the press of a button. I found this feature genuinely useful for planning my trimming sessions around battery life.

The wall-mountable charging base is a thoughtful touch that saves garage shelf space. You mount the charger on the wall and slide the battery in vertically. The trimmer converts to an edger by rotating the shaft, though it lacks the wheeled guide found on some older Black+Decker models.

Who Should Buy This on Prime Day

This trimmer targets homeowners who want the simplicity of the Black+Decker ecosystem but need more cutting power than the 20V models provide. If you have thick grass varieties like St. Augustine, Bermuda, or Zoysia, the 40V motor makes a real difference.

It is also worth considering if you want a wall-mounted charging solution that keeps your garage organized. The charge indicator on the battery is a small but genuinely helpful feature.

What to Watch Out For

Battery life is shorter than competitors at this voltage level. Expect 20 to 25 minutes of continuous runtime on the included battery. The charger-to-battery connection can be finicky, requiring you to wiggle the battery slightly to ensure proper contact.

The lack of edging wheels is a downgrade from previous Black+Decker models. You will need to freehand your edging, which takes more practice to get clean lines. The single speed setting means you cannot dial back power to extend runtime.

6. Wild Badger Power 52cc Gas Trimmer – 3-in-1 Gas Powered Beast

The Wild Badger Power 52cc is the only gas-powered trimmer on this list, and I include it because some properties simply need more torque than any battery system can deliver. I tested this trimmer on a rural property with heavy brush, saplings, and overgrown fence lines that had been neglected for months. The 52cc engine chewed through everything I pointed it at.

The 3-in-1 system includes an 18-inch string trimmer head, an edger attachment, and a 10-inch brush cutter blade. The brush cutter blade is what sets this apart from every other trimmer here. It cuts through woody growth up to about an inch and a half in diameter. Switching between attachments takes about 5 minutes with the included tools.

The full crank 2-cycle engine is designed for longer life than the half-crank engines found in cheaper gas trimmers. Wild Badger claims double the engine life, and the 3-year warranty that covers both residential and commercial use backs that up. The easy-start system typically fires within 5 pulls once you learn the choke and prime sequence.

The included shoulder strap and harness are essential because this trimmer weighs 24.2 pounds. I would not recommend using it for more than 45 minutes without a break. The rubberized handle provides decent grip, but the weight distribution is front-heavy, especially with the brush cutter blade attached.

Who Should Buy This on Prime Day

This trimmer is built for rural properties, large acreage, and anyone dealing with serious brush clearing. If you have a fence line that has been overgrown for a season or more, the brush cutter blade will save you hours of manual labor.

It is also suitable for light commercial use. The warranty covers professional landscaping, which is uncommon at this price point for gas equipment.

What to Watch Out For

The included instructions are notoriously poor. Plan to watch a few YouTube tutorials on mixing 2-cycle fuel and starting the engine properly. The bump feed head works poorly with the factory string. Most users upgrade to a higher-quality replacement head within the first season.

The blade attachment causes significant vibration through the shaft. Use gloves and take frequent breaks. The gas cap has been reported to have sealing issues by some users, so check that it clicks shut firmly before each use. This trimmer overheats with extended continuous use, so plan for breaks every 30 to 40 minutes.

7. BLACK+DECKER BESTA510 6.5-Amp Corded Trimmer – Budget Corded Workhorse

The BLACK+DECKER BESTA510 is the corded option I recommend for anyone with a small yard near an outdoor outlet. At $59 retail and potentially lower on Prime Day, it is the most affordable trimmer on this list that still delivers reliable cutting performance. The 6.5-amp motor produces a consistent 8000 RPM that never fades as a battery would.

I tested this trimmer on a small courtyard garden where running an extension cord was simple and practical. The POWERDRIVE Transmission delivers solid torque through the 14-inch cutting path. The automatic feed spool dispenses line without bumping, though it can advance a bit aggressively when the spool is full.

The trimmer converts to a wheeled edger in seconds, and the built-in edge guide wheel helps maintain a straight line along sidewalks and driveways. At 6.3 pounds, it is light enough for anyone to handle comfortably. The cord retention system prevents accidental disconnection if you tug on the extension cord while working.

The main trade-off with any corded trimmer is range. You need a heavy-duty outdoor extension cord, which is not included. For yards within 50 to 100 feet of an outlet, corded power gives you unlimited runtime at the lowest cost of any powered trimmer type.

Who Should Buy This on Prime Day

This is the right choice for budget-conscious buyers with small yards, courtyards, or townhouse lawns near an outdoor power source. If you hate dealing with battery charging and gas mixing, corded electric is the simplest power source available.

It is also great as a backup trimmer. Even if you own a premium cordless model, having a $59 corded trimmer as a spare means you are never stuck waiting for a battery to charge.

What to Watch Out For

You must purchase a heavy-duty outdoor extension cord separately. Use at least a 14-gauge cord for runs up to 50 feet and a 12-gauge cord for longer distances. The auto feed system can dispense line faster than necessary, so monitor your spool level to avoid waste.

Tall users over 6 feet may find the shaft slightly short. The guard is adjustable but can feel cumbersome during edging work. Despite these minor issues, the value proposition at this price is hard to beat.

8. VARSK 20V Cordless Weed Wacker – Complete Kit with 6 Spools

The VARSK 20V cordless weed wacker is the newest product on this list, and I was skeptical at first given the lower review count. After three weeks of testing on a small suburban yard, I came away impressed by the value proposition. The kit includes everything you need to start trimming immediately: two 2.0Ah batteries, a charger, and six replacement spools.

At 5.3 pounds, it is the lightest trimmer in this roundup, edging out even the WORX WG163 by a fraction of a pound. The 2-in-1 design converts from trimmer to edger with a simple head rotation. The pivoting cutting head adjusts 80 degrees, which is useful for reaching under low shrubs and deck railings.

The auto-feed technology worked smoothly in my testing. Line advances automatically without any bumping required. The 180-degree adjustable handle lets you find a comfortable grip angle regardless of your height. The two included batteries each provide about 25 to 30 minutes of runtime, and the fast charger replenishes a battery in roughly 60 minutes.

The six bonus replacement spools are a significant value add. Replacement spools typically cost $8 to $12 each, so the included extras effectively save you $50 to $70 over the life of the trimmer. The VARSK is ranked number one in Amazon’s Power Edgers category, which speaks to its growing reputation.

Who Should Buy This on Prime Day

This is an excellent pick for first-time trimmer buyers who want a complete out-of-the-box kit without buying accessories separately. The dual batteries and six spare spools make it a genuine all-inclusive package for small to medium yards.

It is also worth considering if weight is your primary concern. At 5.3 pounds, nearly anyone can handle this trimmer for extended sessions without fatigue.

What to Watch Out For

As a newer product with fewer reviews than established brands, long-term durability is still being proven. The 1-year warranty is shorter than the 2 to 3 year coverage offered by Black+Decker and Greenworks. If you want peace of mind, consider an extended warranty.

The spacer guard can be tricky to install correctly during assembly. Take your time with the initial setup and refer to the instruction manual. Battery runtime is adequate for small yards but will not cover a large property on a single charge.

Prime Day String Trimmer Buying Guide

Shopping for a string trimmer during Amazon Prime Day can save you real money, but only if you know what to look for. This buying guide breaks down the key decisions so you can pick the right trimmer for your yard and budget. We also have a broader guide to brushless drill combo kits if you are shopping for cordless tools beyond the yard.

Gas vs Battery vs Corded: Which Power Source Is Right for You

Battery-powered trimmers dominate Prime Day deals because they are the most popular category. They offer freedom of movement, no fuel mixing, and quiet operation. The trade-off is runtime limitations and higher upfront cost for quality brushless models. Battery trimmers in the 20V range suit small to medium yards, while 40V and 56V models handle larger properties.

Gas-powered trimmers deliver maximum torque and unlimited runtime as long as you have fuel. They are louder, heavier, and require regular maintenance including air filter cleaning, spark plug replacement, and fuel mixing. Choose gas only if you have thick brush, large acreage, or need commercial-grade power.

Corded electric trimmers are the budget-friendly choice for small yards near an outlet. They deliver consistent power with zero battery charging and the lowest purchase price. The limitation is range, as you are tethered to an extension cord.

Understanding Voltage and Battery Ecosystems

Voltage directly correlates to cutting power. A 20V trimmer handles light to medium grass on small yards. A 40V model steps up to thicker grass and medium properties. A 56V or 60V system approaches gas-level performance for demanding conditions.

Battery ecosystem compatibility is the single most important factor in long-term cost. When you buy a trimmer from EGO, Greenworks, Black+Decker, or WORX, you are buying into that brand’s battery platform. Future tool purchases cost less because you already own compatible batteries and chargers. Reddit users in the r/egopowerplus and r/Greenworks communities consistently recommend choosing a brand based on your full tool needs, not just the trimmer.

For cordless tool enthusiasts, investing in a single ecosystem pays off. The same battery that runs your string trimmer can power your hedge trimmer, leaf blower, chainsaw, and even lawn mower if you stay within the brand family.

Line Diameter Explained: .065 vs .080 vs .095 vs .105

String trimmer line diameter affects cutting power and durability. Thinner line breaks more easily but is lighter and easier on the motor. Thicker line handles woody weeds and lasts longer but requires more power to spin.

The 0.065-inch line is standard on budget and lightweight trimmers like the WORX WG163 and VARSK. It handles grass well but snaps on woody stems. The 0.080-inch line is the middle ground for residential trimmers, suitable for most suburban yards. The 0.095-inch line, used by the EGO POWER+, handles thick weeds and light brush. The 0.105-inch line is professional grade for commercial landscaping.

Always check your trimmer’s recommended line diameter before buying replacement spools. Using thicker line than specified can damage the motor or cause the auto-feed system to jam.

Cutting Swath: Matching Width to Your Yard Size

Cutting swath refers to the width of grass the trimmer cuts in a single pass. A 12-inch swath is fine for small yards and detailed edging work. A 13 to 15-inch swath covers more ground per pass, reducing total trimming time on medium to large yards. An 18-inch swath, like the Wild Badger gas model, is designed for large properties and brush clearing.

Wider is not always better. A large cutting swath requires more motor power to maintain RPM under load. If you buy a wide-swath trimmer with an underpowered motor, you will stall frequently and drain batteries faster.

Are Prime Day Deals Actually the Best Prices

This is the question we see most often on Reddit’s lawn care forums. The honest answer is that Prime Day deals on string trimmers are genuinely good but not always the lowest prices of the year. Based on three years of price tracking, we have found that Prime Day discounts typically range from 15 to 30 percent off retail.

The best deals tend to be on kits that include batteries and chargers. Bare tool discounts are smaller because the margin is already thin. Watch for Lightning Deals during the event, as these can offer deeper discounts for a limited window. Also check that the deal price is actually lower than the recent average using a price tracking tool like CamelCamelCamel.

Tips for Scoring the Best Prime Day String Trimmer Deals

Add your target trimmer to your Amazon wishlist before Prime Day starts. Amazon sometimes offers early discounts to wishlist items. Check the page at midnight Pacific Time when new deals drop, and again at 3 AM and 6 AM for Lightning Deal rotations. Compare the Amazon price against Home Depot and Lowe’s, as they sometimes match or beat Prime Day pricing.

If you are buying into a battery ecosystem, look for bundle deals that include a higher-capacity battery or a second tool. These bundles often represent the best per-unit value during Prime Day. Many users on r/lawncare recommend waiting for combo kits rather than buying a standalone trimmer.

FAQs

Final Thoughts on Prime Day String Trimmer Deals

Finding the best Amazon Prime Day string trimmer deals in 2026 comes down to matching the right power source and features to your yard size. The EGO POWER+ ST1502SA remains our top overall pick for its gas-like 56V performance and premium build quality. The BLACK+DECKER LST522 takes the value crown with exceptional battery life and the proven 20V MAX ecosystem. For budget shoppers, the WORX WG163 with its dual batteries and Command Feed system punches well above its price class.

Prime Day runs June 23 through June 26 this year. Add your target trimmer to your Amazon wishlist now, set a price alert, and check back daily during the event for Lightning Deals. The right string trimmer at the right price will make your lawn care routine faster, quieter, and more enjoyable for years to come.