BLACK+DECKER Weed Eater, Lawn Edger and Cordless vs PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn
Updated July 2026 — BLACK+DECKER Weed Eater, Lawn Edger and Cordless wins on battery, PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn wins on price and weight.
The BLACK+DECKER Weed Eater is ideal for smaller yards with its versatility, while the PowerSmart lawn mower excels in power and efficiency for larger spaces.
Why BLACK+DECKER Weed Eater, Lawn Edger and Cordless is better
Price
BLACK+DECKER is significantly cheaper at $169.00.
Versatility
BLACK+DECKER offers three-in-one functionality for trimming, edging, and mowing.
Compact Design
BLACK+DECKER is easier to store and maneuver in small spaces.
Why PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn is better
Power
PowerSmart has a robust 170cc engine for tough mowing jobs.
Cutting Width
PowerSmart features a 21-inch cutting width for efficiency.
Cutting Heights
PowerSmart offers 6 adjustable cutting heights for customization.
Overall score
Specifications
| Spec | BLACK+DECKER Weed Eater, Lawn Edger and Cordless | PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn |
|---|---|---|
| Engine | Battery | 170cc OHV |
| Functionality | 3-in-1 | 3-in-1 |
| Self-Propelled | No | Yes |
| Cutting Heights | N/A | 6 |
| Warranty | 2 Years | N/A |
Dimension comparison
Overview of BLACK+DECKER Weed Eater and PowerSmart Lawn Mower
The BLACK+DECKER Weed Eater is priced at $169.00, while the PowerSmart lawn mower comes in significantly higher at $297.49, making it about 76% more expensive. Each product is designed for specific lawn care needs, catering to different yard sizes and maintenance preferences. While the BLACK+DECKER model emphasizes versatility and ease of use, the PowerSmart offers robust power and efficiency for larger areas.
Design and Build Quality
The BLACK+DECKER Weed Eater features a convertible design that allows it to transform from a trimmer to a lawn mower effortlessly. This compact design is particularly suited for smaller yards and challenging spaces, making it an ideal choice for users with limited storage. Conversely, the PowerSmart lawn mower boasts a durable steel deck with a 21-inch cutting width, which is designed for high efficiency in medium to large yards. The self-propelled mechanism allows for easier maneuverability, particularly on slopes or uneven terrain.
Power and Performance
When it comes to power, the PowerSmart lawn mower is equipped with a robust 170cc OHV engine, providing consistent performance and durability for tougher mowing jobs. This engine's reliability is crucial for users with larger lawns that require more power. In contrast, the BLACK+DECKER Weed Eater relies on battery power, featuring PowerDrive technology that prevents bogging down in dense grass. While the Weed Eater is suitable for lighter tasks, the PowerSmart's engine is designed for heavy-duty performance.
Cutting Capabilities
The PowerSmart lawn mower offers 6 cutting heights, ranging from 1.5 inches to 3.9 inches, which allows users to adjust the cut according to grass length and personal preference. This feature can significantly enhance the customization of lawn care, making it suitable for various seasons and grass types. The BLACK+DECKER Weed Eater, while versatile, has a more limited cutting capability and is primarily designed for trimming and edging rather than extensive mowing tasks.
Ease of Use
The BLACK+DECKER Weed Eater is designed for convenience, featuring an automatic feed spool that ensures continuous operation without interruptions for line adjustments. This makes it particularly user-friendly, especially for those who may be less experienced with lawn care. On the other hand, the PowerSmart lawn mower's self-propelling feature simplifies the mowing process, allowing users to navigate more easily without exerting as much effort. Both products are designed to enhance user experience but cater to different aspects of lawn maintenance.
Versatility in Functionality
The BLACK+DECKER Weed Eater stands out for its three-in-one functionality, allowing users to easily switch between a push mower, trimmer, and edger. This adaptability makes it an excellent choice for small to medium-sized yards where versatility is crucial. Meanwhile, the PowerSmart mower also offers a three-in-one function, enabling bagging, mulching, and rear discharge of clippings, making it suitable for a more extensive range of lawn care tasks. It provides greater efficiency in larger spaces, while the Weed Eater is tailored for more intimate settings.
Warranty and Support
Both products come with warranties to assure buyers of their reliability and quality. The BLACK+DECKER Weed Eater includes a 2-year limited warranty, providing peace of mind for users. While specific warranty details for the PowerSmart model are not mentioned, the brand is recognized for its commitment to customer service. This aspect can be crucial for consumers who prioritize long-term investment in their lawn care equipment.
Which should you buy?
Choosing between the BLACK+DECKER Weed Eater and the PowerSmart lawn mower ultimately depends on your specific lawn care needs. If you have a smaller yard and require a versatile, easy-to-store tool, the BLACK+DECKER Weed Eater at $169.00 is a strong contender. However, for those with larger lawns that require more power and efficiency, the PowerSmart's $297.49 price tag may be justified due to its robust engine and cutting capabilities. Each product has its strengths, so consider your yard size, maintenance preferences, and budget when making your decision.

