BLACK+DECKER Weed Eater, Lawn Edger and Cordless vs Greenworks 80V 21" Self-Propelled Cordless Lawn
Updated July 2026 — BLACK+DECKER Weed Eater, Lawn Edger and Cordless wins on noise level and battery, Greenworks 80V 21" Self-Propelled Cordless Lawn wins on power and weight.
The Greenworks mower offers superior performance and features, making it the better choice for larger lawns, while the BLACK+DECKER is more budget-friendly and versatile for smaller 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.
Weight
BLACK+DECKER is lighter and easier to handle.
Why Greenworks 80V 21" Self-Propelled Cordless Lawn is better
Performance
Greenworks has a brushless motor for better torque.
Build Quality
Greenworks features a durable steel deck.
Battery Life
Greenworks can cut up to half an acre on a full charge.
Overall score
Specifications
| Spec | BLACK+DECKER Weed Eater, Lawn Edger and Cordless | Greenworks 80V 21" Self-Propelled Cordless Lawn |
|---|---|---|
| Price | $169.00 | $479.99 |
| Sales Rank | 13782 | 1880 |
| Functionality | 3-in-1 | 4-in-1 |
| Motor Type | Brushed | Brushless |
| Warranty | 2 Years | Best-in-Class |
Dimension comparison
Price Comparison
The BLACK+DECKER Weed Eater is priced at $169.00, making it significantly cheaper than the Greenworks 80V Self-Propelled Lawn Mower, which retails for $479.99. This means that the Greenworks mower costs about 184% more than the BLACK+DECKER model. For homeowners on a budget, the BLACK+DECKER option represents a more accessible entry point into cordless lawn care tools. However, the higher price of the Greenworks mower may reflect its advanced features and capabilities, appealing to those who are willing to invest more for a robust lawn care solution.
Design and Build Quality
The BLACK+DECKER Weed Eater features a convertible design that allows it to transform from a trimmer to an edger and a mower. This versatility is ideal for those with smaller yards or challenging landscapes. In contrast, the Greenworks mower boasts a durable 21-inch steel deck and a brushless motor, which is designed for quieter operation and longer life. While both mowers are built with user convenience in mind, the Greenworks model offers a more substantial build that may be beneficial for tackling larger lawns, providing a more robust experience overall.
Power and Performance
The BLACK+DECKER Weed Eater utilizes PowerDrive technology to enhance its performance, ensuring it can handle dense grass and weeds efficiently. It also features an automatic feed spool that allows for continuous operation without interruptions. On the other hand, the Greenworks mower offers a brushless motor that generates 30% more torque than standard models, enabling it to handle tougher mowing conditions with ease. While the BLACK+DECKER is suitable for smaller jobs, the Greenworks mower is engineered for larger, more demanding tasks, giving it an edge in performance.
Functionality and Features
The BLACK+DECKER Weed Eater excels in its three-in-one functionality, allowing users to switch between mowing, trimming, and edging easily. This makes it a versatile tool for various lawn care tasks. Conversely, the Greenworks mower features a 4-in-1 cutting system that includes mulching, bagging, side discharge, and turbo leaf pickup, providing greater adaptability for different yard conditions. The additional LED lights on the Greenworks mower enhance visibility for early morning or late evening mowing, making it a more feature-rich option for users who need flexibility in their mowing schedule.
Battery and Runtime
The BLACK+DECKER comes with two 20V MAX* lithium-ion batteries, which provide ample power for its 12-inch mowing and trimming tasks. This arrangement ensures that users can easily switch out batteries for continuous operation. In contrast, the Greenworks mower is equipped with a single 4.0Ah battery that allows it to cut up to half an acre on a full charge, although runtime can vary based on grass conditions. While both products offer battery power, the Greenworks mower’s larger battery capacity may benefit those with larger lawns, allowing for longer mowing sessions without needing frequent recharges.
Weight and Maneuverability
The BLACK+DECKER Weed Eater is designed for easy handling, making it suitable for users who may struggle with heavier equipment. Its lightweight design is ideal for navigating smaller yards and tight spaces. On the other hand, the Greenworks mower is self-propelled with rear-wheel drive, which enhances its maneuverability across various terrains. This feature allows users to cover larger areas with less physical effort, making it a more appealing choice for those with expansive lawns. While both mowers have their strengths in maneuverability, the Greenworks model stands out for its self-propelling capability.
Customer Reception and Sales Rank
The BLACK+DECKER Weed Eater ranks at 13,782 in sales, indicating a solid presence in the market for budget-conscious consumers. Meanwhile, the Greenworks mower enjoys a significantly higher sales rank at 1,880, suggesting that it has garnered more interest and acclaim among users looking for high-performance lawn care tools. The disparity in sales rank might reflect the Greenworks mower's appeal to consumers willing to invest in quality and functionality, while the BLACK+DECKER model serves as a more accessible option for those needing basic lawn care solutions.
Which should you buy?
The decision between the BLACK+DECKER Weed Eater and the Greenworks 80V Self-Propelled Lawn Mower largely depends on your specific lawn care needs and budget. If you are looking for an affordable, versatile option suitable for smaller yards, the BLACK+DECKER model is a strong contender at $169.00. However, if you require a more powerful, feature-rich mower for larger areas, the Greenworks mower, priced at $479.99, may be worth the investment, particularly with its robust design and enhanced performance capabilities. Ultimately, assess your yard size and mowing frequency to determine which product aligns best with your gardening goals.

