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BLACK+DECKER 20-Inch Corded Electric Lawn Mower vs WORX Nitro 21" Cordless Lawn Mower, Brushless

Updated July 2026 — BLACK+DECKER 20-Inch Corded Electric Lawn Mower wins on bag capacity, WORX Nitro 21" Cordless Lawn Mower, Brushless wins on weight and height.

The WORX Nitro 21" Cordless Lawn Mower offers advanced features and better performance, making it the superior choice for demanding lawns.

Why BLACK+DECKER 20-Inch Corded Electric Lawn Mower is better

Lower Price

BLACK+DECKER is $120 cheaper.

Lightweight

Easier to maneuver due to its lighter design.

Simplicity

Straightforward operation without advanced tech.

Why WORX Nitro 21" Cordless Lawn Mower, Brushless is better

Power

WORX has a brushless motor with 40% more power.

Cordless

WORX offers the convenience of cordless operation.

Advanced Tech

Includes Aerodeck and Intellicut technologies.

Overall score

BLACK+DECKER 20-Inch Corded Electric Lawn Mower
75
WORX Nitro 21" Cordless Lawn Mower, Brushless
88

Specifications

SpecBLACK+DECKER 20-Inch Corded Electric Lawn MowerWORX Nitro 21" Cordless Lawn Mower, Brushless
Motor Power13 AmpBrushless 40V
Cutting Height1.5" - 4"1.5" - 4"
RuntimeN/A50 minutes
Warranty2 Years3 Years
Mowing Modes3-in-13-in-1

Dimension comparison

BLACK+DECKER 20-Inch Corded Electric Lawn MowerWORX Nitro 21" Cordless Lawn Mower, Brushless

Overview of the Products

The BLACK+DECKER 20-Inch Corded Electric Lawn Mower and the WORX Nitro 21" Cordless Lawn Mower are both excellent choices for maintaining your lawn, but they cater to different needs. The BLACK+DECKER model is currently priced at $259.00, while the WORX model costs $379.99, making the BLACK+DECKER about 32% cheaper. This price difference indicates that the BLACK+DECKER may appeal more to budget-conscious consumers, while the WORX offers features that could justify its higher price.

Power and Performance

When it comes to power, the BLACK+DECKER features a robust 13 Amp motor that provides reliable cutting performance. In contrast, the WORX Nitro is equipped with a brushless motor that boasts 40% more power and 10% longer runtime than its predecessor. This makes the WORX a more powerful option for tackling tougher grass conditions, especially for lawns up to ½ acre. The difference in motor technology highlights the performance capabilities of each mower, with the WORX especially suitable for more demanding mowing tasks.

Cutting Versatility

Both mowers offer 3-in-1 functionality, allowing for mulching, bagging, and side discharge. The BLACK+DECKER features a 20-inch deck and a single lever with 7 cutting height settings ranging from 1 ½ inches to 4 inches. The WORX Nitro, however, also provides 7 height positions between 1.5 inches and 4 inches, but with a wider 21-inch cutting deck, which can cover more ground in less time. This slight edge in deck size and functionality could make the WORX more efficient for larger lawns.

Convenience and Ease of Use

In terms of convenience, the BLACK+DECKER offers a tool-free height adjustment and a 13-gallon fabric grass bag that allows users to see when it’s full. The WORX Nitro includes two 20V 5.0Ah PowerShare Pro batteries and a dual charger, providing the flexibility of cordless operation. This means users can mow without being tethered to an electrical outlet, which can be a significant advantage for yards with complicated layouts. Both mowers are designed for ease of use, but the WORX's cordless feature provides an added layer of convenience.

Technology and Features

The WORX Nitro incorporates advanced technologies like Aerodeck and Intellicut. Aerodeck technology enhances airflow in the cutting deck to improve cut quality and efficiency, while Intellicut automatically adjusts the cutting speed based on grass thickness. This ensures optimal performance while conserving battery life. The BLACK+DECKER, while not equipped with these specific technologies, still offers a reliable and straightforward mowing experience that many users appreciate. The added features of the WORX may appeal to those looking for cutting-edge technology in their lawn care tools.

Design and Build Quality

Both mowers are designed for durability and ease of storage. The BLACK+DECKER has a lightweight design that makes it easy to maneuver and transport. The WORX Nitro features a high-strength polymer deck that resists corrosion and impact, promising a longer lifespan. However, the WORX's collapsible handle allows for vertical storage, saving space in garages or sheds. The build quality of both mowers is commendable, but the WORX may provide an edge in longevity due to its robust materials.

Customer Reception

While both mowers have their strengths, they also have notable differences in customer reception. The BLACK+DECKER currently ranks at 31,868 in sales, indicating a solid but less prominent presence in the market compared to the WORX, which ranks at 4,856. This suggests that the WORX model may have garnered a more favorable response from consumers, possibly due to its advanced features and performance capabilities.

Which should you buy?

Choosing between the BLACK+DECKER 20-Inch Corded Electric Lawn Mower and the WORX Nitro 21" Cordless Lawn Mower ultimately depends on your specific needs and budget. If you are looking for a more affordable option that performs reliably for standard mowing tasks, the BLACK+DECKER is a great choice at $259.00. However, if you require a powerful mower with advanced features for tackling larger or more challenging lawns, the WORX at $379.99 may justify the higher cost. Consider your lawn size, mowing habits, and whether you prefer the convenience of a cordless model when making your decision.