BLACK+DECKER Weed Eater, Lawn Edger and Cordless vs Earthwise LSW70021 21-Inch Width Leaf & Grass Push
Updated July 2026 — BLACK+DECKER Weed Eater, Lawn Edger and Cordless wins on battery life and length, Earthwise LSW70021 21-Inch Width Leaf & Grass Push wins on width and bag capacity.
The BLACK+DECKER Weed Eater offers more versatility and functionality compared to the Earthwise LSW70021, making it the better choice for diverse lawn care needs.
Why BLACK+DECKER Weed Eater, Lawn Edger and Cordless is better
Versatility
3-in-1 functionality for mowing, trimming, and edging
Power
PowerDrive technology for efficient performance
Warranty
Includes a 2-year limited warranty with batteries
Why Earthwise LSW70021 21-Inch Width Leaf & Grass Push is better
Price
Lower price at $129.99
Simplicity
Easy to use for leaf collection
Weight
Lighter and easier to maneuver on flat surfaces
Overall score
Specifications
| Spec | BLACK+DECKER Weed Eater, Lawn Edger and Cordless | Earthwise LSW70021 21-Inch Width Leaf & Grass Push |
|---|---|---|
| Functionality | 3-in-1 | Sweeper |
| Power Source | Battery | Manual |
| Sales Rank | 13782 | 6474 |
| Adjustable Height | Yes | Yes |
| Warranty | 2 Years | None |
Dimension comparison
Overview of BLACK+DECKER Weed Eater and Earthwise LSW70021
The BLACK+DECKER Weed Eater is priced at $169.00, while the Earthwise LSW70021 is available for $129.99, making the Earthwise about 23% cheaper. Both products serve different purposes in lawn maintenance, with the Weed Eater being a versatile 3-in-1 tool that functions as a lawn mower, trimmer, and edger, whereas the Earthwise is primarily a push lawn sweeper designed for collecting leaves and light debris. Understanding their functionalities will help you decide which tool is best suited for your yard care needs.
Functionality and Versatility
The BLACK+DECKER Weed Eater offers three functionalities in one device, allowing users to mow, trim, and edge their lawns. This versatility makes it ideal for smaller yards or areas that are difficult to access with traditional lawn mowers. The automatic feed spool ensures continuous operation without interruptions, while its adjustable height and length settings provide customizable comfort during use. In contrast, the Earthwise LSW70021 is specifically designed for collecting dry leaves and light yard debris from maintained lawns. It operates best on flat surfaces and requires multiple passes for effective cleanup, which may not be suitable for all yard conditions.
Design and Build Quality
In terms of design, the BLACK+DECKER Weed Eater features a removable wheeled deck that facilitates easy transformation from a trimmer to a lawn mower. This compact design ensures that it can navigate challenging spaces with ease. The Earthwise LSW70021, with its 21-inch sweeping width, is designed to cover more ground but is limited in its application to collecting debris. While the Weed Eater provides a more multipurpose experience, the Earthwise is optimized for specific tasks, which may limit its overall utility for those looking for an all-in-one solution.
Ease of Use
The BLACK+DECKER Weed Eater is praised for its user-friendly features, including the PowerDrive technology that helps prevent bogging in dense grass. The automatic feed spool also enhances ease of use by eliminating the need for frequent line adjustments. On the other hand, the Earthwise LSW70021 requires users to adjust the brush height for optimal performance and may necessitate several passes to achieve thorough cleanup. While both products are designed for ease of use, the Weed Eater’s multifunctionality and automatic features may provide a more convenient experience for users.
Performance on Different Terrain
When it comes to performance, the BLACK+DECKER Weed Eater excels in tackling a variety of lawn tasks, including mowing, trimming, and edging, particularly in challenging spaces such as slopes. Its PowerDrive technology ensures efficient performance in dense grass. Conversely, the Earthwise LSW70021 works best on flat, recently mowed lawns and may struggle with tall grass or uneven terrain. Therefore, if your yard has diverse terrains, the Weed Eater would likely be the better option, while the Earthwise is better suited for flat, well-maintained areas.
Maintenance and Storage
The maintenance requirements for both products differ significantly. The BLACK+DECKER Weed Eater comes with a 2-year limited warranty and includes two batteries, making it a comprehensive kit for users. Its compact design allows for easy storage, and the automatic feed spool minimizes upkeep. In contrast, the Earthwise LSW70021 offers a medium-capacity collection bag, which may require frequent emptying during use, especially in larger yards. Its design is straightforward, but users need to be diligent about maintenance to ensure optimal performance.
Customer Reception and Sales Rank
The BLACK+DECKER Weed Eater holds a sales rank of 13,782, indicating a moderate level of popularity in the market. Meanwhile, the Earthwise LSW70021 is more popular with a sales rank of 6,474, suggesting that it resonates well with consumers seeking a more budget-friendly and specialized lawn care solution. Customer feedback on both products highlights their effectiveness, but the Weed Eater’s versatility tends to garner more favorable reviews for overall performance.
Which should you buy?
Choosing between the BLACK+DECKER Weed Eater and the Earthwise LSW70021 ultimately depends on your specific lawn care needs. If you require a versatile tool that can handle multiple tasks, the BLACK+DECKER Weed Eater, priced at $169.00, is the superior choice with its 3-in-1 functionality and user-friendly features. However, if you are looking for a more economical option for managing leaves and debris on a flat, well-maintained lawn, the Earthwise LSW70021 at $129.99 may be the better fit. Consider your lawn’s requirements and your budget to make an informed decision.

