WORX 20V 12" Weed Wacker vs WORX Cordless String Trimmer (2026): Key Differences
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
The worx 20v 12 weed wacker vs cordless string trimmer comparison highlights two distinct WORX tools. Both use the Power Share battery platform, allowing you to share cells across devices. The primary difference lies in their scope. Product A is a multi-tool kit with a 20V motor, offering trimming, hedging, and blowing capabilities. Product B is a dedicated 40V string trimmer with a brushless motor. You need to decide if versatility or raw trimming power matters more for your yard.
Key differences
| Aspect | WORX WG931 20V 3-in-1 Kit | WORX 15-Inch Brushless 40V String Trimmer |
|---|---|---|
| Voltage | 20V | 40V |
| Cutting Swath | 12 in | 15 in |
| Motor Type | not listed | brushless |
| Line Feed System | command feed | bump feed |
| Weight | 17.7 pounds | 9.42 pounds |
Which one should you choose?
Choose WORX WG931 20V 3-in-1 Kit if
- You want a single system that handles trimming, hedging, and leaf blowing.
- You prefer a push-button line feed mechanism for precise control.
- You already own 20V WORX batteries and do not need higher voltage.
Choose WORX 15-Inch Brushless 40V String Trimmer if
- You need a dedicated, lightweight tool for faster trimming over larger areas.
- You want the efficiency of a brushless motor for longer runtime and power.
- You prefer a wider 15-inch cutting swath to cover ground more quickly.
Verdict: Choose the WG931 kit if you value versatility and need hedge trimming and blowing functions alongside your weed wacker. Pick the WG185 if you prioritize a lighter, more powerful dedicated trimmer with a brushless motor and wider cut. Both integrate with the same battery ecosystem.
Worx Trimmer Kit vs 40V Model
Voltage and power
Product B uses a 40V system, while Product A operates on a 20V platform. The 40V model features a brushless motor that delivers gas-like performance, comparable to a 25cc gas engine. This motor provides 40% more power than first-generation brushless units and lasts ten times longer than brushed motors. Product A relies on the standard 20V WORX Power Share battery. While both belong to the same ecosystem, the higher voltage and advanced motor in Product B suggest greater cutting force and efficiency for tough vegetation.
Cutting width
Product B offers a 15-inch cutting swath, which covers more ground per pass than Product A’s 12-inch width. The wider reach allows you to trim thick weeds and dense grass faster. Product B uses a dual-exit head with 0.095-inch line to maintain this width. Product A’s trimmer head is narrower, limiting its coverage area. If you have a large lawn or heavy overgrowth, the extra three inches on Product B helps finish jobs more quickly. Product A is better suited for smaller, more precise trimming tasks.
Versatility and attachments
Product A is a 3-in-1 kit that includes a 22-inch hedge trimmer and a 360 CFM turbine blower. This bundle allows you to hedge shrubs and blow leaves using the same battery system. Product B is a dedicated string trimmer with no additional attachments. It focuses solely on grass and weed cutting. If you need to maintain hedges or clear debris, Product A provides multiple tools in one package. Product B is a single-purpose tool designed for efficient trimming without the bulk of extra heads.
Line feed system
Product A uses a command feed system. You push a button to advance the trimmer line when needed. This model includes free spools for life. Product B uses a bump-feed system. You tap the head against the ground to instantly advance the line. This method gives you control over how much line you use and prevents lawn damage. Both systems are practical, but bump-feed is common for quick adjustments during active trimming. Command feed offers a hands-free button approach. The choice depends on your preferred adjustment style.
Weight and maneuverability
Product B weighs only 9.42 pounds, making it significantly lighter than Product A, which weighs 17.7 pounds. The lighter weight of Product B allows for easier maneuvering and reduces fatigue during extended use. Product A is heavier due to its multi-tool kit design and additional components. While Product A is still manageable, the substantial weight difference favors Product B for users who prioritize lightweight handling. The compact size of Product B also aids in navigating tight spaces around garden beds and obstacles.
Choose your WORX trimmer
You need a multi-tool kit for yard work
This kit includes a 12-inch trimmer, a 22-inch hedge trimmer, and a blower with 360 CFM airflow. You get a wheeled edger conversion that takes seconds to switch. The command feed system lets you push a button for more line. It weighs 17.7 pounds. You can use one 20V battery across all three tools.
You want maximum cutting power and speed
This 40V model features a brushless motor with 40% more power than previous versions. It offers a wider 15-inch cutting swath to finish jobs faster. The bump-feed head advances line by tapping the ground. It runs on a 4.0Ah battery for extended runtime. The lightweight design at 9.42 pounds makes it easy to maneuver through thick weeds.
You prefer a lightweight tool for easy handling
Weighing only 9.42 pounds, this trimmer is significantly lighter than the 17.7-pound kit. The compact size and brushless motor provide gas-like performance without the bulk. You get variable speed control to adjust power for different tasks. The easy-load spool head stays attached for quick refills. It uses the same 40V Power Share batteries as other WORX tools.
The products compared
WORX WG931 20V 3-in-1 Kit
Best for: Versatile yard maintenance with shared batteries
- Voltage
- 20V
- Cutting Swath
- 12"
- Power Source
- battery
- Line Feed System
- push-button
- Battery Capacity
- 2.0Ah
- Cutting Width
- 22-Inch
View on Amazon: WORX WG931 20V 3-in-1 Kit Affiliate link
This WORX WG931 kit combines a 12-inch string trimmer, a 22-inch hedge trimmer, and a 360 CFM blower. It runs on 20V Power Share batteries and uses command feed for line adjustment. The design converts to a wheeled edger. You get three tools in one package, sharing a single battery platform. It suits users who want versatile yard maintenance without buying separate devices.
Pros
- Includes 12-inch trimmer, 22-inch hedge trimmer, and 360 CFM blower
- Converts to a wheeled edger in seconds
- Uses WORX 20V Power Share battery system
- Command feed system for on-demand line adjustment
Cons
- 12-inch cutting swath is narrower than the 15-inch competitor
- 20V system may have less runtime than 40V alternatives
- Heavier at 17.7 pounds due to three tool attachments
Good fit if
- You want a trimmer, hedge trimmer, and blower in one bundle
- You already own WORX 20V batteries
- You need to switch between trimming and edging frequently
Skip if
- You prefer a wider 15-inch or larger cutting path
- You need maximum runtime for large properties
- You only need a single tool and do not want extra weight
Verdict: WORX 20V 3-in-1 Trimmer Kit offers a complete yard care bundle for users who value versatility and battery sharing over raw cutting width or lightweight design.
WORX 15-Inch Brushless 40V String Trimmer
Best for: Users with 40V batteries needing reach
- Voltage
- 40V
- Cutting Swath
- 15"
- Power Source
- battery
- Motor Type
- brushless
- Line Feed System
- bump feed
- Battery Capacity
- 4.0 Ah
View on Amazon: WORX 15-Inch Brushless 40V String Trimmer Affiliate link
The Worx WG185 is a 40V cordless string trimmer with a 15-inch cutting swath and a brushless motor. It weighs 9.42 pounds and uses 4.0 Ah Power Share batteries. This tool offers gas-like power and variable speed control. It suits users who want a lightweight, eco-friendly alternative to gas trimmers. The bump-feed head and easy-load spool simplify maintenance. You get extended runtime for tackling thick weeds and dense grass efficiently.
Pros
- 40V brushless motor provides elevated performance and speed
- 15-inch cutting width covers more ground in less time
- Lightweight 9.42-pound design for easy maneuvering
- Compatible with 140+ WORX Power Share tools
- Variable speed control adjusts power for different tasks
Cons
- No variable speed trigger mentioned in data
- Heavier than some 20V competitors
- Limited to 40V battery platform
Good fit if
- You want a lightweight trimmer for easy handling
- You already own WORX 40V batteries
- You need a wider cutting swath for faster work
Skip if
- You prefer a 20V system for lighter duty
- You need a tool-only option without batteries
- You require a compact 10-inch cutting width
Verdict: Worx 40V 15" Cordless String Trimmer fits users who value power and reach. It is ideal for those with existing 40V batteries who need a lightweight tool for thick vegetation.
Specifications side by side
| Spec | WORX WG931 20V 3-in-1 Kit | WORX 15-Inch Brushless 40V String Trimmer |
|---|---|---|
| Voltage | 20V | 40V |
| Cutting Swath | 12" | 15" |
| Power Source | battery | battery |
| Motor Type | not stated | brushless |
| Line Feed System | push-button | bump feed |
| Battery Capacity | 2.0Ah | 4.0 Ah |
| Cutting Width | 22-Inch | 15-Inch |
| Dimensions | 36.3 × 7.5 × 5.5 inches | 68.3 × 12.8 × 10.7 inches |
| Weight | 17.7 pounds | 9.42 pounds |
| Size | 20V Trimmer + Hedge Trimmer + Turbine Blower | 15" |
| Color | Black and Orange | Black and Orange |
| Model | WG931 | WG185 |
Frequently asked questions
Which WORX trimmer is lighter for extended use?
The 40V string trimmer is significantly lighter. It weighs 9.42 pounds, making it easier to hold and maneuver for long periods. In contrast, the 20V 3-in-1 kit weighs 17.7 pounds. The higher weight comes from the additional tools included in the bundle. You will feel less fatigue with the lighter 40V model during repetitive tasks.
Does the 20V kit include a hedge trimmer?
Yes, the 20V kit includes a hedge trimmer. This model is a 3-in-1 system that combines a trimmer, hedge trimmer, and blower. You can share batteries across all three tools. The kit provides a versatile approach to yard maintenance without needing separate devices for each specific task.
What is the cutting width of the 40V trimmer?
The 40V string trimmer has a 15-inch cutting width. This size is suitable for standard lawn edging and trimming around obstacles. The 20V kit includes a 12-inch trimmer head. You should choose the wider 15-inch option if you want to cover more ground with each pass.
Is the 40V model brushless?
Yes, the 40V string trimmer features a brushless motor. This design offers gas-like performance comparable to a 25cc gas engine. It also provides 40% more power than brushed alternatives. The brushless motor enhances efficiency and durability, making it a strong choice for thick vegetation.
Can I use the same batteries for both tools?
Both tools use the WORX Power Share battery platform. You can use the same 20V or 40V batteries across different devices in this ecosystem. However, the 20V kit is designed for 20V batteries, while the 40V trimmer requires 40V batteries. Ensure your existing batteries match the voltage of the tool you select.
Which tool is better for a small yard?
The 20V 3-in-1 kit is ideal for small yards. It includes a trimmer, hedge trimmer, and blower in one package. This versatility allows you to handle multiple tasks without buying separate tools. The kit also includes a wheeled edger conversion for precise edges along walkways and driveways.
How long is the 40V trimmer?
The 40V string trimmer is 68.3 inches in length. This extended reach helps you access distant areas without bending over. The 20V kit is shorter at 36.3 inches. You will need a taller tool if you prefer not to stoop while trimming tall grass or weeds.