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Greenworks 40V 16" Cordless Lawn Mower vs WORX Nitro 21" Cordless Lawn Mower, Brushless

Updated July 2026 — WORX Nitro 21" Cordless Lawn Mower, Brushless leads on price and weight.

The Greenworks mower is ideal for smaller yards with its lightweight design and lower price, while the WORX Nitro offers more power and versatility for larger lawns.

Why Greenworks 40V 16" Cordless Lawn Mower is better

Price

Greenworks is $100 cheaper.

Weight

Greenworks is 35% lighter.

Maintenance

Greenworks requires zero maintenance.

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

Runtime

WORX offers up to 50 minutes of runtime.

Cutting Width

WORX has a larger 21" cutting deck.

Versatility

WORX has 3-in-1 functionality.

Overall score

Greenworks 40V 16" Cordless Lawn Mower
75
WORX Nitro 21" Cordless Lawn Mower, Brushless
85

Specifications

SpecGreenworks 40V 16" Cordless Lawn MowerWORX Nitro 21" Cordless Lawn Mower, Brushless
Motor TypeBrushedBrushless
Cutting Height1.25-3.3751.5-4
MulchingYesYes
Battery IncludedYesYes
Warranty3 Years3 Years

Dimension comparison

Greenworks 40V 16" Cordless Lawn MowerWORX Nitro 21" Cordless Lawn Mower, Brushless

Overview of the Mowers

When it comes to choosing between the Greenworks 40V 16" Cordless Lawn Mower and the WORX Nitro 21" Cordless Lawn Mower, both options provide powerful performance, but they cater to different yard sizes and user preferences. The Greenworks mower is priced at $279.99, while the WORX model is offered at $379.99, making it about 36% more expensive. However, the price difference reflects various features and capabilities tailored to specific mowing needs.

Design and Build Quality

The Greenworks mower is designed to be ultra-lightweight, weighing 35% less than traditional models, and features a 16" cutting deck, making it highly maneuverable for users with smaller yards. In contrast, the WORX Nitro boasts a larger 21" cutting deck, ideal for tackling bigger lawns up to ½ acre. Its brushless motor is engineered for durability and efficiency, promising to last longer than standard motors. While both mowers have a robust build, the Greenworks emphasizes ease of use and storage, which is perfect for those with limited space.

Power and Runtime

In terms of power, the Greenworks mower operates on a 4.0Ah battery with a runtime of approximately 40 minutes. This is adequate for small to medium lawns but may be limiting for larger areas. Conversely, the WORX Nitro comes with two 5.0Ah batteries, offering a combined runtime of up to 50 minutes. This extended usage makes it a more suitable choice for homeowners with larger yards, allowing them to mow without frequent interruptions for battery changes.

Cutting Performance

The cutting performance of each mower is enhanced by their respective technologies. The Greenworks mower features a Smart Cut Adjustment System that allows users to modify the cutting height between 1.25" and 3.375" with a single lever, accommodating various grass types effectively. The WORX Nitro, on the other hand, employs Aerodeck Technology, which optimizes airflow in the cutting deck, improving cut quality and efficiency. It also offers seven height adjustment positions ranging from 1.5" to 4", providing greater flexibility for different mowing conditions.

Versatility and Functionality

Versatility is another distinguishing factor. The Greenworks mower includes a 2-in-1 mulching and rear-bagging system that maximizes clipping management, perfect for maintaining a neat lawn. The WORX Nitro takes this further with its 3-in-1 functionality, allowing users to mulch, bag, or side-discharge clippings. This added feature makes the WORX model more adaptable to various lawn care preferences. Additionally, both mowers support compatibility with other tools in their respective ecosystems, with the Greenworks compatible with over 75 tools and WORX offering compatibility with more than 140 power tools.

Maintenance and Sustainability

When it comes to maintenance, the Greenworks mower shines with its zero maintenance promise. Users can save over $200 annually on gas and oil costs, while enjoying whisper-quiet operation at under 75dB. The WORX Nitro, while still being battery-operated and eco-friendly, may require more attention due to its advanced features. Both models eliminate the need for gas and oil, making them sustainable choices for environmentally conscious consumers.

Customer Satisfaction and Popularity

Popularity can often indicate reliability, and in this case, the Greenworks mower ranks at 813 in sales, while the WORX Nitro is at 4856. Despite the WORX model being less popular, it is still a well-regarded option among users seeking powerful performance. The Greenworks mower's higher sales rank suggests a broader acceptance among homeowners, likely due to its balance of price and performance for smaller yards.

Which should you buy?

Choosing between the Greenworks 40V 16" Cordless Lawn Mower and the WORX Nitro 21" Cordless Lawn Mower ultimately depends on your specific lawn care needs. If you have a smaller yard and prioritize lightweight design, ease of use, and lower costs, the Greenworks mower is an excellent choice at $279.99. However, for those with larger lawns seeking extended runtime, enhanced cutting technology, and greater versatility, the WORX Nitro at $379.99 could be worth the investment. Each mower has distinct advantages, so consider your yard size and mowing preferences to make the best decision.