> ## Content Index > Fetch the complete content index at: https://udiwg.org/llms.txt > Use this file to discover other available public pages before exploring further. # Best Self Propelled Cordless String Trimmer Picks - URL: https://udiwg.org/best-self-propelled-cordless-string-trimmer/ - Published: 2026-09-07T07:29:36.000Z - Updated: 2026-09-07T09:49:27.000Z - Description: A walk-behind wheeled trimmer, three mower-and-trimmer combos, and three handheld cordless picks compared on cutting width, weight and what they actually clear. - Author: Dane Jones - Tags: Outdoor Power Tools, Lawn Care, Yard Tools The best self propelled cordless string trimmer setup here is the BILT HARD Self-Propelled Walk-Behind String Trimmer, a wheeled 22-inch cutter with 8-position height adjust and 10-inch flat-free wheels that rolls itself through the rough stuff. If your yard is a manicured quarter-acre rather than a weedy field, the WORX WG163 handheld at 5.52 lb is the better self propelled cordless string trimmer alternative, since it edges cleanly and stores on a hook. In this guide 1. [Best self propelled cordless string trimmer at a glance](#best-self-propelled-cordless-string-trimmer-at-a-glance) 2. [How I narrowed a crowded field to seven](#how-i-narrowed-a-crowded-field-to-seven) 3. [The deciding spec buyers keep missing](#the-deciding-spec-buyers-keep-missing) 4. [1\. BILT HARD Self-Propelled Walk-Behind String Trimmer — Best overall](#1-bilt-hard-self-propelled-walk-behind-string-trimmer-%E2%80%94-best-overall) 5. [2\. SENIX 22" Self-Propelled Gas Lawn Mower with Cordless Trimmer — Best for heavy use](#2-senix-22-self-propelled-gas-lawn-mower-with-cordless-trimmer-%E2%80%94-best-for-heavy-use) 6. [3\. WORX WG163 20V 12" Cordless String Trimmer & Edger — Best for families](#3-worx-wg163-20v-12-cordless-string-trimmer-edger-%E2%80%94-best-for-families) 7. [4\. Greenworks 48V 21" Mower + 12" Trimmer + Blower Combo — Best premium](#4-greenworks-48v-21-mower-12-trimmer-blower-combo-%E2%80%94-best-premium) 8. [5\. Greenworks 48V 21" Mower + Trimmer + Blower Kit (CK24L5242) — Most versatile](#5-greenworks-48v-21-mower-trimmer-blower-kit-ck24l5242-%E2%80%94-most-versatile) 9. [6\. BLACK+DECKER LST300 20V MAX String Trimmer & Edger — Best for quiet operation](#6-blackdecker-lst300-20v-max-string-trimmer-edger-%E2%80%94-best-for-quiet-operation) 10. [7\. KOMASTY 20V Cordless Weed Wacker — Best budget pick](#7-komasty-20v-cordless-weed-wacker-%E2%80%94-best-budget-pick) 11. [Is a self-propelled cordless trimmer even a real thing?](#is-a-self-propelled-cordless-trimmer-even-a-real-thing) 12. [Wheeled walk-behind or handheld: which fits your yard?](#wheeled-walk-behind-or-handheld-which-fits-your-yard) 13. [What a combo kit changes about the math](#what-a-combo-kit-changes-about-the-math) 14. [What the listings do not tell you](#what-the-listings-do-not-tell-you) 15. [The verdict](#the-verdict) 16. [FAQ](#faq) ## Best self propelled cordless string trimmer at a glance | Pick | Cutting width | Weight | Price | | ---------------------------------------------------------------------------------------------------------- | ------------------------ | ------------- | ---------------------------------------------------------------- | | **Best overall**[BILT HARD Self-Propelled Walk-Behind](https://www.amazon.com/dp/B0GWQLT8FG?tag=udiwg-20) | 22 in | not listed | [Check Price](https://www.amazon.com/dp/B0GWQLT8FG?tag=udiwg-20) | | **Best for heavy use**[SENIX 22" Mower + Trimmer Combo](https://www.amazon.com/dp/B0GYD8RMDS?tag=udiwg-20) | 10 in trimmer22 in mower | 72.8 lb combo | [Check Price](https://www.amazon.com/dp/B0GYD8RMDS?tag=udiwg-20) | | **Best for families**[WORX WG163 20V 2-in-1](https://www.amazon.com/dp/B018S68U40?tag=udiwg-20) | 12 in | 5.52 lb | [Check Price](https://www.amazon.com/dp/B018S68U40?tag=udiwg-20) | | **Best premium**[Greenworks 48V 21" Mower Combo](https://www.amazon.com/dp/B0C2ZMYVWM?tag=udiwg-20) | 12 in trimmer21 in mower | 43 lb | [Check Price](https://www.amazon.com/dp/B0C2ZMYVWM?tag=udiwg-20) | | **Most versatile**[Greenworks 48V 21" 3-Piece Kit](https://www.amazon.com/dp/B0CT3TB8SH?tag=udiwg-20) | 12 in trimmer21 in mower | 78.3 lb | [Check Price](https://www.amazon.com/dp/B0CT3TB8SH?tag=udiwg-20) | | **Best for quiet operation**[BLACK+DECKER LST300 20V](https://www.amazon.com/dp/B00HH4K4HQ?tag=udiwg-20) | 12 in | 5.7 lb | [Check Price](https://www.amazon.com/dp/B00HH4K4HQ?tag=udiwg-20) | | **Best budget pick**[KOMASTY 20V Weed Wacker](https://www.amazon.com/dp/B0G6KMRNJ5?tag=udiwg-20) | 12 in | not listed | [Check Price](https://www.amazon.com/dp/B0G6KMRNJ5?tag=udiwg-20) | ## How I narrowed a crowded field to seven The phrase "self propelled cordless string trimmer" points to two different tools, and buyers rarely realise it until the box arrives. Some want a wheeled, walk-behind trimmer that drives itself along on 10-inch wheels and clears knee-high weeds. Others want a handheld cordless line trimmer light enough to swing one-handed. I kept both kinds in the shortlist, because both are what shoppers are searching for. I disqualified three kinds of listing before writing a word: 1. Corded electric trimmers, which are not cordless. 2. Gas handheld trimmers with no wheels and no battery, which are neither self-propelled nor cordless. 3. Bare-tool mower listings that do not include a trimmer at all. That left the seven picks above. Two are wheeled walk-behinds with drive wheels (BILT HARD and, inside the SENIX bundle, its mower). Three are combo kits that bundle a self-propelled mower with a handheld cordless trimmer, which is the closest most brands come to the exact phrase. Two are pure handheld cordless trimmers, kept for readers whose yards do not justify a wheeled machine. ## The deciding spec buyers keep missing Most guides in this category compare motor voltage. 20V, 24V, 48V, 60V. Voltage is not what decides it. **What decides it is cutting width matched to the size of the area you actually trim.** The BILT HARD clears a 22-inch swath per pass. The Greenworks and BLACK+DECKER handhelds clear 12 inches. The SENIX trimmer inside its combo is 10 inches. That is more than a 2x difference in ground covered per step, and it swamps any battery-versus-gas argument for a big lot. On a small city lawn, the opposite is true: a 22-inch wheeled deck cannot reach behind a raised bed, and a 12-inch handheld will. The second spec worth reading is weight. The WORX WG163 is 5.52 lb. The BLACK+DECKER LST300 is 5.7 lb. The Greenworks 48V mower combo weighs 43 lb assembled. The SENIX combo comes in at 72.8 lb across its pieces. If overhead trimming along a fence line matters, weight decides comfort by the end of the first tank of coffee. ## 1\. BILT HARD Self-Propelled Walk-Behind String Trimmer — Best overall **A 22-inch wheeled string trimmer that drives itself through overgrown ground the handhelds cannot touch.** [![BILT HARD self-propelled walk-behind string trimmer with 22-inch deck and 10-inch flat-free wheels — the widest cutting path in this set](https://m.media-amazon.com/images/I/41lau-uBxKL._SL500_.jpg)](https://www.amazon.com/dp/B0GWQLT8FG?tag=udiwg-20) **Best for:** anyone clearing tall weeds, ditch banks, or field edges on a half-acre or larger **Skip it if:** your yard is a small city lot with tight beds and gates under 24 inches This is the only pick that reads "self-propelled string trimmer" without needing to bundle a separate mower. BILT HARD says the 170cc 4-cycle engine drives the wheels at a steady 1.9 mph, and the 22-inch nylon cutting head clears the widest swath in this set by a wide margin. The frame measures 42.1 x 52.7 x 18.6 inches, which is closer to a walk-behind mower footprint than a handheld trimmer. 8-position height adjust and 10-inch flat-free wheels are the two specs that matter on rough ground: one lets you set the cut for pasture versus lawn edges, the other stops the wheels going flat on thorns. The trade-off against every other pick here is honest and large. This is a gas engine, not a battery, and it is called a cordless self-propelled trimmer only in the loose sense that there is no extension cord. If your search assumed a lithium battery, the BLACK+DECKER or WORX below is what you want instead. **Pros:** - 22-inch cutting path, widest in this set - Self-propels at 1.9 mph on 10-inch flat-free wheels - 8-position height adjust for pasture and lawn - Foldable handle for garage storage - Handles brush and dense weeds handhelds cannot **Cons:** - 170cc gas engine, not battery powered - Weight not published in the listing - Too wide for small yards and narrow gates - Only one seller lists it [Check Price on Amazon](https://www.amazon.com/dp/B0GWQLT8FG?tag=udiwg-20) ## 2\. SENIX 22" Self-Propelled Gas Lawn Mower with Cordless Trimmer — Best for heavy use **A 22-inch self-propelled mower plus a matched 20V handheld trimmer, blower and hedge trimmer in one 4-piece bundle.** [![SENIX 22-inch self-propelled gas mower alongside 20V cordless string trimmer, blower and hedge trimmer — the four-piece bundle for heavier weekly work](https://m.media-amazon.com/images/I/519-zdglSzL._SL500_.jpg)](https://www.amazon.com/dp/B0GYD8RMDS?tag=udiwg-20) **Best for:** a homeowner replacing an entire tired outdoor kit in one purchase **Skip it if:** you only want the trimmer and already own a mower The SENIX bundle is the heaviest kit in the set at 72.8 lb across its pieces, and that weight buys the most tools. SENIX lists a 170cc OHV mower with 11-inch rear wheels and a 22-inch manganese steel blade, a 10-inch 20V brushless string trimmer with a 0.065-inch line and 360-degree edger conversion, a 350 CFM / 80 MPH blower with cruise control, and a 21-inch dual-action hedge trimmer. Two batteries and a charger are included. SENIX notes the kit ships in two separate packages. Within this set, the SENIX is the one that treats the trimmer as part of a full yard system rather than the star of the show. If you already own a mower you like, you are paying for pieces you do not need, and the BILT HARD or WORX gives you the trimmer directly. If you are starting from scratch, the SENIX is the most complete answer here. It sells more slowly than any handheld pick in this set, which is what happens with bigger, higher-commitment kits. **Pros:** - Four tools plus two batteries and charger - Brushless motor on the 10-inch trimmer - 360-degree trimmer-to-edger conversion - Matched blower and hedge trimmer share batteries - 11-inch rear wheels for hills **Cons:** - 72.8 lb across the whole kit - Ships in two separate packages - Mower is gas, only the handhelds are battery - Highest price position for a trimmer-plus-mower buyer [Check Price on Amazon](https://www.amazon.com/dp/B0GYD8RMDS?tag=udiwg-20) ## 3\. WORX WG163 20V 12" Cordless String Trimmer & Edger — Best for families **A 5.52 lb handheld cordless trimmer that swaps to a wheeled edger in seconds, light enough for anyone in the house to run.** [![WORX WG163 20V 12-inch cordless string trimmer converted to edger position with rubberized wheels — the lightest full-featured handheld here](https://m.media-amazon.com/images/I/41Lqi2bnYqL._SL500_.jpg)](https://www.amazon.com/dp/B018S68U40?tag=udiwg-20) **Best for:** a two-adult household passing the trimmer around a suburban lot **Skip it if:** you need to clear tall pasture weeds rather than trim finished grass At 5.52 lb and 36.3 inches long, the WG163 is close to the lightest pick here. WORX describes a push-button command feed spool that pushes line without bumping, a head that tilts 90 degrees for slopes, and an adjustable spacer guard that keeps the line off flower beds and ornaments. The rubberised wheels are what set it apart from the BLACK+DECKER: they carry the machine when it flips into edger mode, so a beginner can walk a straight line along a driveway on the first try. Within this set it is the one buyers of this set pick up most often, and the reason is fit. It does the two jobs most yards actually need, trimming and edging, without a battery platform decision or a 40-pound mower on the receipt. The trade-off is scope: it will not clear weeds thicker than a pencil, and there is no wheeled drive to push it through rough patches. This is a lawn tool, not a brush tool. **Pros:** - 5.52 lb, one of the two lightest picks - Head tilts 90 degrees for slopes - Command feed spool, no bump feeding - Rubberised wheels support edger mode - The one buyers reach for most in this set **Cons:** - 12-inch cut only, not for pasture - No self-propelled drive - 0.065-inch line class, snaps in brush - Battery specs limited in the listing [Check Price on Amazon](https://www.amazon.com/dp/B018S68U40?tag=udiwg-20) ## 4\. Greenworks 48V 21" Mower + 12" Trimmer + Blower Combo — Best premium **A 48V battery platform pairing a self-propelled 21-inch mower with a 12-inch handheld trimmer, three batteries included.** [![Greenworks 48V self-propelled 21-inch mower with LED headlights, 12-inch cordless string trimmer and blower — the battery platform combo](https://m.media-amazon.com/images/I/51GD8ZTAr6L._SL500_.jpg)](https://www.amazon.com/dp/B0C2ZMYVWM?tag=udiwg-20) **Best for:** a battery-first buyer who wants gas-free mowing and trimming on one system **Skip it if:** you already own a different battery platform you like This is the most expensive pick here, and it is aimed squarely at buyers who do not want to store gasoline. Greenworks pairs a 48V (2 x 24V) brushless self-propelled mower with a 12-inch handheld cordless trimmer and a blower, and ships two 5.0Ah batteries plus a 24V 2.0Ah USB battery. The mower runs a 21-inch steel deck with a 4-in-1 rear bag, mulch, side discharge and Turbo button setup, plus LED headlights for dusk. The mower alone is 43 lb. Within the set, this is the pick that solves the "cordless" half of the search phrase most cleanly. The self-propelled drive is on the mower, and the trimmer is a matched handheld, so nobody has to lift the wheeled unit. The trade-off is that you are buying a full mower to get the trimmer, and the trimmer itself has the same 12-inch reach as the entry-price BLACK+DECKER. Value shows up over years of shared batteries, not on day one. **Pros:** - 48V brushless mower with LED headlights - Three batteries and two chargers included - Self-propelled drive plus 4-in-1 deck - Vertical storage with collapsible handles - Fully battery, no fuel or oil **Cons:** - Highest price position in this set - Trimmer itself is only 12 inches - Mower is 43 lb to lift for storage - Sells slowly compared with the handhelds [Check Price on Amazon](https://www.amazon.com/dp/B0C2ZMYVWM?tag=udiwg-20) ## 5\. Greenworks 48V 21" Mower + Trimmer + Blower Kit (CK24L5242) — Most versatile **A three-piece Greenworks kit with a published 3-year warranty and access to the wider 24V tool family.** [![Greenworks 48V 21-inch self-propelled mower with matching 12-inch cordless string trimmer and 320 CFM blower — three-piece battery kit](https://m.media-amazon.com/images/I/41IHvCmHHfL._SL500_.jpg)](https://www.amazon.com/dp/B0CT3TB8SH?tag=udiwg-20) **Best for:** a buyer already invested, or planning to invest, in 24V Greenworks tools **Skip it if:** you only want the trimmer, in which case the WORX or BLACK+DECKER is closer This second Greenworks kit is the only pick in the set with a stated warranty: 3-year limited on the tools and batteries. It runs the same 48V (2 x 24V) mower deck with 3-in-1 mulching, rear bagging and side discharge, pairs it with a 12-inch trimmer using a 0.065-inch line and auto feed, and adds a 320 CFM / 90 MPH blower. Greenworks says the platform works with more than 200 other 24V tools, from chainsaws to blowers to hedge trimmers. Compared with the other Greenworks pick above, this kit is heavier at 78.3 lb across its pieces, and the trimmer uses a brushed motor rather than brushless. What earns it a slot is the published warranty and the compatibility ladder: if you plan to add a pole saw, a hedge trimmer or a second yard tool over the next two seasons, buying into this kit lowers the future cost of each addition. If you just want a trimmer, that logic does not apply and this is the wrong shape of purchase. **Pros:** - Only pick with a stated 3-year warranty - Compatible with 200+ Greenworks 24V tools - Self-propelled 21-inch mower with 3-in-1 deck - Two 5.0Ah batteries and dual-port charger - Matched blower at 320 CFM / 90 MPH **Cons:** - 78.3 lb across the whole kit - Trimmer motor is brushed, not brushless - Premium price for a 12-inch trimmer - Buying a full mower to get a trimmer [Check Price on Amazon](https://www.amazon.com/dp/B0CT3TB8SH?tag=udiwg-20) ## 6\. BLACK+DECKER LST300 20V MAX String Trimmer & Edger — Best for quiet operation **A 5.7 lb handheld cordless trimmer with a published 2-year warranty and a lower price position than the WORX.** [![BLACK+DECKER LST300 20V cordless string trimmer and edger with automatic feed spool and adjustable handle — the quiet 5.7 lb pick](https://m.media-amazon.com/images/I/31feZfeUZML._SL500_.jpg)](https://www.amazon.com/dp/B00HH4K4HQ?tag=udiwg-20) **Best for:** a small-yard owner who wants quiet, low-fuss trimming near neighbours **Skip it if:** you need to clear anything thicker than lawn grass and light weeds The LST300 is the second-cheapest pick in this set and one of only two picks with a published warranty at 2 years limited. BLACK+DECKER lists a 6,200 RPM POWERDRIVE transmission, an automatic feed spool that dispenses line without bumping, and a 2-in-1 trim-or-edge conversion. At 5.7 lb it is within a rounding error of the WORX for weight, and the listing calls out quiet start-up as the difference against gas trimmers. Within the set, this is where the "cordless" half of the search phrase lands cleanly at an entry price. It is a straightforward battery handheld with a 12-inch deck, no wheeled drive, and no combo kit around it. Against the WORX, it loses the rubberised edger wheels and the head-tilt claim, and against the wheeled BILT HARD it is not in the same category of tool at all. It suits a yard where a whisper matters more than raw clearing power. The 2024 listing date is the newest in the set. **Pros:** - 5.7 lb, comfortable for long trim sessions - 2-year limited warranty, rare in this set - Automatic feed spool, no bump feeding - 2-in-1 trim or edger in seconds - Quiet start-up versus gas alternatives **Cons:** - No self-propelled drive - 12-inch cut, lawn grass only - No edger wheels like the WORX - One battery, no spare included [Check Price on Amazon](https://www.amazon.com/dp/B00HH4K4HQ?tag=udiwg-20) ## 7\. KOMASTY 20V Cordless Weed Wacker — Best budget pick **The cheapest pick here, with two 2.0Ah batteries and a folding shaft for tight storage.** [![KOMASTY 20V cordless string trimmer in lime green with folding shaft and dual batteries — the entry-price handheld in this set](https://m.media-amazon.com/images/I/41CpDuLupLL._SL500_.jpg)](https://www.amazon.com/dp/B0G6KMRNJ5?tag=udiwg-20) **Best for:** a renter or apartment gardener trimming a strip of grass a few times a season **Skip it if:** the tool will run for more than half an hour at a stretch KOMASTY prices this at the bottom of the set and pairs it with two 2.0Ah batteries and a charger for a combined 30-minute runtime. The 12-inch head runs at a claimed 9,500 RPM with an auto feed system, the pivoting head switches between trimming and edging, and the shaft folds 180 degrees in three ways for vertical storage in an apartment or crowded garage. Dimensions are 5 x 40 x 8 inches. Within this set, this is the pick for a buyer whose yard is small enough that the total runtime is not a problem, and whose storage is tight enough that a folding shaft matters more than a longer battery. The trade-off against the BLACK+DECKER and the WORX is transparency: no weight is published in the specifications, and no warranty is stated in the listing. Neither absence is a defect, but both mean you know less on paper than about the two better-known handhelds above. **Pros:** - Cheapest pick in this set - Two batteries and a charger included - Shaft folds 180 degrees for storage - Auto feed line system, no bumping - Pivoting head for trim or edge **Cons:** - Weight not published - No warranty stated in the listing - 30-minute total runtime is modest - Newer brand with less service history [Check Price on Amazon](https://www.amazon.com/dp/B0G6KMRNJ5?tag=udiwg-20) ## Is a self-propelled cordless trimmer even a real thing? Short answer: rarely in one machine, often as a pair. The literal product, a battery-powered handheld trimmer with drive wheels doing the walking, is nearly nonexistent on the shelf. Every listing that comes close is one of three shapes: - **A wheeled walk-behind trimmer with a gas engine and drive wheels**, like the BILT HARD. Self-propelled, yes. Cordless, only in the sense of no extension cord. - **A combo kit** that bundles a self-propelled mower with a matched handheld cordless trimmer, like the SENIX and both Greenworks kits. The drive is on the mower, the cordless is on the trimmer, and the two share nothing else. - **A cordless handheld with wheels for edging only**, like the WORX and BLACK+DECKER. Not self-propelled in the drive sense, but the wheels do the guiding work. If a listing promises all three properties in a single handheld tool, read the specs before you commit. Most of the time the wheels are guide wheels, not drive wheels, and the "self-propelled" wording refers to a companion mower in the box. ## Wheeled walk-behind or handheld: which fits your yard? The cutoff is roughly a half-acre with tall weeds. Below it, a handheld cordless trimmer does the whole job in one battery. Above it, the handheld runs out of line and patience before the fence line is done. If you are on the small side of that cutoff, look at the WORX WG163 or BLACK+DECKER LST300\. Both are handhelds. Both weigh under six pounds. Both trim and edge, and neither drives itself, because at that size you do not need it to. If you are on the large side, look at the BILT HARD. It is not battery powered, and it is not what most search results predict, but a 22-inch cutting head driving itself at 1.9 mph is the right tool for genuinely overgrown ground. A handheld cordless trimmer cannot substitute for it, no matter how many spare batteries you buy. If the honest answer is "somewhere in between", the combo kits earn their price. The Greenworks 48V bundles a 21-inch self-propelled mower with a 12-inch cordless trimmer, so the mower handles the open ground and the trimmer finishes the edges. The SENIX does the same with a gas mower and a 10-inch brushless trimmer. Match your yard to the tool that carries the weight, not to the tool the search phrase describes. ## What a combo kit changes about the math Three of these picks are combos: the SENIX 4-piece set, and the two Greenworks 3-piece kits. Combos change three things about a purchase. 1. **Battery platform lock-in.** Two of the three combos put you on a 24V or 48V Greenworks family. That is a benefit if you will add more Greenworks tools, and a cost if you already own a different brand. 2. **Storage space.** A 22-inch mower and a handheld trimmer both need somewhere to live. The Greenworks kits fold vertically; the SENIX does not publish a vertical storage figure. 3. **What "value" actually means.** A combo looks like a discount only if you were going to buy every piece anyway. A blower and a hedge trimmer sitting on a shelf unused make the trimmer inside the kit an expensive trimmer. Combos win when you are replacing everything at once, refreshing an aging kit, or buying into a brand for the long haul. They lose when you already own most of what they contain. ## What the listings do not tell you Even the most complete of these seven listings leaves gaps a shopper needs to fill in. - **Line diameter under load.** The Greenworks kits list a 0.065-inch line. That handles lawn grass. It snaps in serious weeds, and none of the listings say how the head performs when it does. - **Battery service life.** Most handheld picks include one or two 2.0Ah packs. None state expected charge cycles, and none state replacement pack availability past the near term. - **Real-world runtime on tall grass.** KOMASTY's 30-minute figure is a total with two batteries. BLACK+DECKER and WORX do not commit to a number. Cutting tall weeds pulls current fast, so any published minute figure is optimistic. - **Assembly and packaging.** The SENIX ships in two separate packages, which the listing does say. The BILT HARD's 42.1 x 52.7 x 18.6-inch frame is not going to arrive fully built. - **Service and warranty.** Only the BLACK+DECKER (2 years) and the second Greenworks kit (3 years) publish a warranty term. The other five say nothing on paper. None of these gaps are dealbreakers, but each is a question you will want to answer before you commit rather than after. ## The verdict Two answers, one cutoff. If your yard has actual weeds, rough edges, or open ground bigger than a half-acre, the BILT HARD Self-Propelled Walk-Behind is the right default. Its 22-inch cutting head and 8-position height adjust do work no handheld here can do, and its 10-inch flat-free wheels are the reason it keeps moving on ground where a mower would jam. The honest caveat is that it is gas, not battery, and the search phrase's "cordless" is loose in its case. If your yard is a suburban lot, a townhouse strip, or anything that a 5-pound handheld can clear in an afternoon, the WORX WG163 is the right default instead. 5.52 lb, a 90-degree tilting head, and rubberised edger wheels cover the two jobs suburban yards actually need. The BLACK+DECKER LST300 is the near-tie: a 2-year warranty, a lower price position, and a whisper-quiet start-up in a neighbourhood where noise matters. The cutoff between the two is a half-acre of tall growth. Below it, the handheld wins on weight and price. Above it, the wheeled walk-behind wins on width and drive. The combo kits are the right answer only when you are replacing a full outdoor tool set in one purchase, not when you only need a trimmer. ## FAQ ### Is a self propelled cordless string trimmer actually worth it over a regular handheld? Is a self propelled cordless string trimmer worth the step up? Only for large or overgrown ground. The BILT HARD's 22-inch wheeled head cuts more per pass than any 12-inch handheld here and rolls itself at 1.9 mph, which matters on a half-acre or bigger. On a small suburban lot, a 5.52 lb handheld like the WORX WG163 does the same work with less weight and lower cost. ### What cutting width do I need for my yard size? The cutting width you need scales with area. A 10 to 12-inch handheld like the SENIX trimmer, WORX, BLACK+DECKER or KOMASTY suits a quarter-acre of finished lawn. A 22-inch walk-behind like the BILT HARD earns its keep only above roughly a half-acre or on rougher ground. Wider than you need is heavy, slow to store, and awkward around beds. Narrower than you need means more passes and shorter battery life. ### BILT HARD walk-behind versus Greenworks 48V combo: which one wins? BILT HARD walk-behind versus the Greenworks 48V combo is a gas-versus-battery choice, not a spec fight. BILT HARD gives you a 22-inch wheeled cutter that clears heavy weeds a handheld cannot touch, on gasoline. Greenworks gives you a 43 lb self-propelled 21-inch mower with a matched 12-inch cordless trimmer, three batteries and LED headlights. Pick BILT HARD for rough ground, Greenworks for gas-free suburban maintenance. ### Do these cordless trimmers include batteries in the box? The cordless trimmers here include batteries in every listing that publishes one. The WORX WG163, BLACK+DECKER LST300 and KOMASTY handhelds each ship with a battery and charger, and KOMASTY includes two 2.0Ah packs. The Greenworks 48V combos ship with two 5.0Ah packs plus a 24V USB battery, and the SENIX bundle includes two batteries covering its 20V trimmer, blower and hedge trimmer. ### What's the biggest mistake shoppers make in this category? The biggest mistake shoppers make in this category is buying by voltage rather than by cutting width and yard size. A 48V battery does not clear more grass per pass than a 20V one; a 22-inch cutting deck does. Match the width to the ground, then look at the battery. That single reorder of priorities is what separates a trimmer you use every weekend from one that lives in the garage. Ready to buy? Match the tool to the ground you actually have, not to the wording in the search bar. If you are staring at a field of tall weeds and a fence line the mower cannot reach, the BILT HARD Self-Propelled Walk-Behind is the tool that finishes the job in one afternoon rather than three. If you are staring at a driveway edge and a strip of grass along a garden bed, the WORX WG163 will be lighter, quieter, and easier to hand to the next person in the house. Pick the shape of yard first, and the right pick above is the one that fits it. *Last updated: September 19, 2026\. Product availability re-checked.* *This page contains affiliate links. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.*