BLACK+DECKER Weed Eater, Lawn Edger and Cordless vs WORX Nitro 21" Cordless Lawn Mower, Electric Mower
Updated July 2026 — WORX Nitro 21" Cordless Lawn Mower, Electric Mower leads on price and weight.
The BLACK+DECKER Weed Eater is a budget-friendly option with versatile features, while the WORX Nitro offers enhanced power and advanced technology for larger lawns.
Why BLACK+DECKER Weed Eater, Lawn Edger and Cordless is better
Price
BLACK+DECKER is significantly cheaper at $169.00.
Compact Design
Ideal for smaller yards and challenging spaces.
Weight
Lighter and easier to maneuver.
Why WORX Nitro 21" Cordless Lawn Mower, Electric Mower is better
Power
WORX Nitro has a brushless motor delivering 40% more power.
Runtime
WORX Nitro offers up to 50 minutes of runtime.
Self-Propelled
WORX Nitro features self-propelled capabilities.
Overall score
Specifications
| Spec | BLACK+DECKER Weed Eater, Lawn Edger and Cordless | WORX Nitro 21" Cordless Lawn Mower, Electric Mower |
|---|---|---|
| Functionality | 3-in-1 | 3-in-1 |
| Battery | 2 x 20V | 2 x 20V 5.0Ah |
| Cutting Height | Adjustable | 7 positions |
| Warranty | 2 years | N/A |
| Self-Propelled | No | Yes |
Dimension comparison
Overview of BLACK+DECKER Weed Eater and WORX Nitro 21" Cordless Lawn Mower
The BLACK+DECKER Weed Eater is priced at $169.00, making it significantly cheaper than the WORX Nitro 21" Cordless Lawn Mower, which costs $359.99. This price difference of about 53% may influence budget-conscious buyers looking for a versatile lawn care solution. Both products offer unique features that cater to different lawn care needs, highlighting their distinct advantages in functionality and efficiency.
Design and Functionality
The BLACK+DECKER Weed Eater boasts a convertible design that allows users to transform it into a small lawn mower, making it ideal for challenging spaces like smaller yards or steep slopes. Its three-in-one functionality enables easy switching between a push mower, trimmer, and edger, offering versatility in yard care. In contrast, the WORX Nitro 21" Cordless Lawn Mower features aerodeck technology that increases airflow in the cutting deck, enhancing cut quality and efficiency during mowing. It also offers self-propelled capabilities with variable speed, making it easier to navigate lawns without exerting excessive effort.
Power and Performance
With a price of $169.00, the BLACK+DECKER Weed Eater incorporates PowerDrive technology, which prevents bogging down in dense grass and weeds, ensuring reliable performance. Meanwhile, the WORX Nitro, priced at $359.99, features a brushless motor that delivers 40% more power and 10% longer runtime than earlier models. This makes it suitable for larger lawns of up to ½ acre, while the BLACK+DECKER is more suited for smaller, more intricate areas. Users may find that the WORX Nitro offers a more powerful mowing experience, reflecting its higher price point.
Battery and Runtime
The BLACK+DECKER Weed Eater comes with two 20V MAX* lithium-ion batteries, providing convenient power for extended mowing sessions. However, the WORX Nitro includes two 20V 5.0Ah PowerShare Pro batteries, offering a max no-load runtime of up to 50 minutes. This feature allows users to tackle larger areas on a single charge. Given the difference in battery capacity and runtime, those looking for more extensive mowing capabilities may prefer the WORX Nitro despite its higher cost.
Ease of Use
The BLACK+DECKER Weed Eater is designed for user comfort with adjustable deck height and trimmer settings, allowing for a customizable experience. Its lightweight and compact structure makes it easy to maneuver and store. Conversely, the WORX Nitro emphasizes convenience with its fully collapsible handle for space-saving storage and a simple single-lever height adjustment that offers seven height positions. The self-propelled feature further enhances ease of use by allowing users to set their preferred speed, making it easier to manage during mowing tasks.
Versatility
Both the BLACK+DECKER Weed Eater and the WORX Nitro offer three-in-one functionality. The BLACK+DECKER can switch between mowing, edging, and trimming, making it an excellent choice for those with varied lawn care tasks. The WORX Nitro also supports mulching, bagging, and rear side-discharging, providing flexibility in lawn maintenance. However, the WORX Nitro’s feature set is more comprehensive, which may appeal to users looking for a more robust solution for different lawn conditions, despite its higher price.
Maintenance and Warranty
The BLACK+DECKER Weed Eater includes a 2-year limited warranty, ensuring peace of mind for users regarding product reliability. The WORX Nitro, while not explicitly mentioning warranty details, features a durable design with high-strength polymer construction that resists impact damage and corrosion, enhancing its longevity. Users may want to consider how often they expect to use these mowers and the associated maintenance needs when choosing between the two.
Which should you buy?
Ultimately, the decision between the BLACK+DECKER Weed Eater and the WORX Nitro 21" Cordless Lawn Mower boils down to personal preferences and specific lawn care needs. The BLACK+DECKER, at $169.00, is a more budget-friendly option with versatile features suitable for smaller yards. In contrast, the WORX Nitro, priced at $359.99, offers enhanced power, runtime, and advanced technology, making it ideal for larger lawns and tougher mowing conditions. Depending on your budget and lawn size, one option may clearly stand out as the better choice for your outdoor maintenance needs.

