The CRAFTSMAN V20 String Trimmer and Lawn Edger Kit suits buyers needing the longest runtime with a 4Ah battery and 13 inch cutting swath. The Greenworks 40V 12 in String Trimmer & 390 CFM Blower Combo fits those wanting a blower too, with a 2.0Ah battery. The tradeoff is CRAFTSMAN offers more runtime and cut width, while Greenworks adds a blower but uses a smaller battery.
CRAFTSMAN V20 13 in String Trimmer and Edger
Best for: Buyers wanting up to 63 minutes runtime and a 13 inch cut
- Up to 63 minutes runtime with included 4.0Ah battery.
- 13 inch cutting swath covers wide areas in one pass.
- Two speed settings let you choose runtime or power.
Keep in mind: Listing does not state weight, so check handling comfort if that matters.
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Greenworks 40V 12 in Trimmer and Blower Combo
Best for: Buyers who need a trimmer and 390 CFM blower in one kit
- Includes a 390 CFM blower for clearing debris.
- 12 inch trimmer with auto feed line and 3 year head warranty.
- 8 lb balanced design for longer comfort.
Keep in mind: 2.0Ah battery charges in about 60 minutes, so plan for downtime.
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KOMASTY 20V 12 in Folding String Trimmer
Best for: Small yards or apartments needing compact storage
- Shaft folds 180 degrees for vertical storage in tight spaces.
- Two 2.0Ah batteries give up to 30 minutes total runtime.
- 90 degree adjustable head and 180 degree rotatable handle.
Keep in mind: Avoid cutting excessively thick or dense grass to prevent line breakage.
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Goodjob 20V 12 in UltraLight Trimmer
Best for: Seniors or beginners needing a 3.5 lb lightweight tool
- Weighs only 3.5 lbs to reduce fatigue.
- Two 2.0Ah batteries provide up to 40 to 60 minutes runtime.
- 180 degree pivoting head for trimming under fences and corners.
Keep in mind: Runtime varies by load, so heavy weeds may drain batteries faster.
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BLACK+DECKER 20V 12 in Trimmer and Edger
Best for: Light trimming with auto spool feed and reduced vibration
- Automatic feed spool means no bumping required.
- 12 inch cutting swath and 6200 RPM motor.
- Includes one 2.0Ah battery and wall mountable charger.
Keep in mind: One battery only, so larger areas may need a spare.
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HortiHub 21V 12 in Trimmer with 4.0Ah Battery
Best for: Beginners wanting goggles and a 4.0Ah battery included
- 9000 RPM cutting head and 12 inch cutting width.
- 4.0Ah battery provides about 30 minutes runtime.
- Impact resistant goggles and reinforced safety guard included.
Keep in mind: Extend line to 6 inches before first use, as noted in the listing.
Check price on Amazon ↗Product names and images come from the Amazon listings and are rechecked against them (last checked Nov 8, 2026). The highlights restate each listing's own bullet points as published on Nov 8, 2026. Prices change often, so we do not show them. These are affiliate links: as an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Cutting Swath and Power
Cutting swath is the width of the trimmer's cutting path. A wider swath means fewer passes to cover the same area. The CRAFTSMAN V20 has the widest swath at 13 inches. The other five trimmers list a 12 inch cutting swath.
Power is often shown as motor speed in RPM. The KOMASTY and HortiHub models list 9,500 RPM and 9,000 RPM respectively, which help cut thick grass. BLACK+DECKER lists 6,200 RPM with a POWERDRIVE transmission. Greenworks does not state RPM but mentions a commercial grade trimmer that slices through 1 inch weeds.
For buyers with thick or overgrown areas, higher RPM may matter. But cutting swath also affects efficiency. A 13 inch swath covers more ground per pass than a 12 inch swath, even if RPM is not stated.
The table below compares the stated cutting swath, motor speed, and feed type for each model.
| Model | Cutting Swath | Motor Speed | Feed Type |
|---|---|---|---|
| BLACK+DECKER LST300 | 12 in | 6200 RPM | Auto spool feed |
| KOMASTY 20V Trimmer | 12 in | 9500 RPM | Auto line feed |
| Greenworks 40V Trimmer | 12 in | Not listed | Auto feed |
| Goodjob 20V Trimmer | 12 in | Not listed | Auto feed |
| HortiHub 21V Trimmer | 12 in | 9000 RPM | Auto feed |
| CRAFTSMAN V20 Trimmer | 13 in | Not listed | Not listed |
Battery and Runtime
Battery voltage and capacity affect runtime and power. The CRAFTSMAN V20 uses a 4.0Ah battery and lists up to 63 minutes of runtime. The HortiHub 21V also includes a 4.0Ah battery but lists about 30 minutes of runtime.
The goodjob 20V comes with two 2.0Ah batteries and lists 40 to 60 minutes total runtime depending on load. The KOMASTY 20V includes two 2.0Ah batteries with up to 30 minutes total runtime. The BLACK+DECKER 20V includes one 2.0Ah battery with no runtime stated.
The Greenworks 40V includes one 2.0Ah battery with a 60 minute charge time, but runtime is not stated. A higher voltage like 40V may deliver more power, but the CRAFTSMAN's 4.0Ah battery gives longer listed runtime.
If you have a medium or large lawn, the CRAFTSMAN or goodjob may reduce interruptions. For small yards, a single battery may be enough. Check if extra batteries are available for your chosen brand.
- CRAFTSMAN: up to 63 minutes with 4.0Ah battery.
- Goodjob: 40 to 60 minutes with two 2.0Ah batteries.
- KOMASTY: up to 30 minutes total with two 2.0Ah batteries.
- HortiHub: about 30 minutes with 4.0Ah battery.
- Greenworks: 2.0Ah battery, 60 minute charge, runtime not listed.
- BLACK+DECKER: one 2.0Ah battery, runtime not listed.
Weight and Handling
Weight affects fatigue during longer trimming sessions. The goodjob 20V is the lightest at 3.5 lbs, which the listing says reduces fatigue for women, seniors, and beginners. The HortiHub 21V weighs 5.27 lbs and has an adjustable handle for ergonomic comfort.
The Greenworks 40V lists an 8 lb balanced design, which it says is 30% lighter than gas alternatives and comfortable for over 2 hours. The KOMASTY, BLACK+DECKER, and CRAFTSMAN do not state weight in their listings.
Adjustable handles can improve comfort for different user heights. The BLACK+DECKER and CRAFTSMAN both list adjustable handles. The KOMASTY has a 180 degree rotatable handle and 90 degree adjustable head for hard to reach areas.
For buyers with limited strength or who trim for long periods, the goodjob or HortiHub may be easier to handle. The Greenworks 8 lb weight is still lighter than many gas trimmers but heavier than the goodjob.
Feed Systems and Maintenance
Automatic feed systems release trimmer line without bumping. The BLACK+DECKER uses an Automatic Feed Spool that feeds line when needed. The KOMASTY has an intelligent auto feed system that detects line length.
The goodjob has an auto feed system with no bumping required, and a 180 degree pivoting head. The HortiHub releases 0.4 to 0.5 inches of line automatically when started, but you need to extend the line to 6 inches before first use.
The Greenworks uses a 0.065 inch auto feed line and includes a 3 year head warranty. The CRAFTSMAN does not state its feed type, but includes a spool that feeds 0.065 inch line.
Line replacement and assembly can vary. The goodjob lists tool free assembly and easy line replacement. The HortiHub also lists tool free setup. Check the listing for specific instructions before buying.
- BLACK+DECKER: auto spool feed, no bumping.
- KOMASTY: auto feed, but avoid thick grass to prevent line breakage.
- Greenworks: auto feed, 0.065 inch line.
- Goodjob: auto feed, tool free assembly.
- HortiHub: auto feed, extend line to 6 inches before first use.
- CRAFTSMAN: feed type not listed, includes 0.065 inch line spool.
Who Should Look Elsewhere
These trimmers are designed for light to medium yard work. All are 12 or 13 inches in cutting swath, which suits small to medium lawns. The KOMASTY listing explicitly says to avoid cutting excessively thick or dense grass to prevent line breakage.
If you have a large property with heavy brush or thick woody weeds, a gas powered trimmer or a higher voltage 60V or 80V model may be a better fit. None of these listings claim to handle heavy brush or saplings.
Buyers who need a dedicated edger rather than a 2 in 1 tool may want a separate edger. All these models convert to an edger, but the edging performance may not match a dedicated tool.
If you already own batteries from a specific brand, check compatibility. The CRAFTSMAN V20 is part of the V20 system, and the Greenworks 40V battery works with other 40V tools. Buying a bare tool without a battery can save money.
For those with very tight storage, the KOMASTY folds for vertical storage. If you need a blower as well, the Greenworks combo includes one. If you need maximum runtime, the CRAFTSMAN stands out.
Questions to Ask Before You Buy
What cutting swath do I need for a small yard?
A 12 inch swath works well for small yards and tight spaces. A 13 inch swath like the CRAFTSMAN covers more ground per pass, but the difference is small. Choose based on your lawn size and how much time you want to spend.
Is a 20V trimmer powerful enough for thick weeds?
A 20V trimmer can handle normal grass and light weeds. For thick or woody growth, a higher voltage like 40V or more may be needed. Check the listing's stated RPM and avoid pushing the tool beyond its limits.
How many batteries do I need for continuous trimming?
One battery may be enough for a small yard. Two batteries let you swap and keep working. The goodjob and KOMASTY include two batteries, while the CRAFTSMAN's single 4.0Ah battery offers long runtime. Consider your lawn size and charging time.
Which Trimmer Should You Pick
Buyers with a medium lawn who want the longest runtime should choose the CRAFTSMAN V20 13 in String Trimmer and Edger. Its 4.0Ah battery lists up to 63 minutes and the 13 inch swath reduces passes. If you need a blower for driveways and patios, the Greenworks 40V 12 in Trimmer and Blower Combo is the better fit. It includes a 390 CFM blower and an 8 lb design, though its 2.0Ah battery means more charging breaks.
About this guide. The picks were chosen from the listing details for six trimmers, focusing on stated cutting swath, battery capacity, weight, and feed type. The spread includes folding, ultralight, combo, and long runtime designs. Only listing text was used, no units were handled or used, so physical performance claims are not verified.