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Earthwise LSW70021 21-Inch Width Leaf & Grass Push vs Greenworks 40V 17" Cordless Lawn Mower – Brushless

Updated July 2026 — Earthwise LSW70021 21-Inch Width Leaf & Grass Push wins on noise level and width, Greenworks 40V 17" Cordless Lawn Mower – Brushless wins on runtime and weight.

The Earthwise LSW70021 is a budget-friendly option for leaf collection, while the Greenworks 40V mower offers advanced features and versatility for mowing grass.

Why Earthwise LSW70021 21-Inch Width Leaf & Grass Push is better

Price

Earthwise is significantly cheaper at $129.99.

Simplicity

Earthwise is straightforward for leaf collection.

Storage

Earthwise is compact and easy to store.

Why Greenworks 40V 17" Cordless Lawn Mower – Brushless is better

Performance

Greenworks has a powerful brushless motor.

Versatility

Greenworks offers mulching and bagging options.

Ease of Use

Greenworks features an instant push-button start.

Overall score

Earthwise LSW70021 21-Inch Width Leaf & Grass Push
70
Greenworks 40V 17" Cordless Lawn Mower – Brushless
85

Specifications

SpecEarthwise LSW70021 21-Inch Width Leaf & Grass PushGreenworks 40V 17" Cordless Lawn Mower – Brushless
Motor TypeManualBrushless
Cutting HeightsN/A6
Collection MethodBagMulch/Bag
Warranty1 Year3 Years
Power SourceManualCordless

Dimension comparison

Earthwise LSW70021 21-Inch Width Leaf & Grass PushGreenworks 40V 17" Cordless Lawn Mower – Brushless

Overview of the Earthwise LSW70021 and Greenworks 40V Mower

The Earthwise LSW70021 is priced at $129.99, while the Greenworks 40V Cordless Lawn Mower retails for $279.99, making the Earthwise about 53% cheaper. Each product serves a distinct purpose: the Earthwise sweeper is designed for collecting leaves and light debris, whereas the Greenworks mower focuses on cutting grass efficiently.

The Earthwise is best suited for maintaining a clean lawn, particularly in fall when leaves accumulate. Its 21-inch width allows for a broad sweep, making it effective for yards that require regular upkeep. On the other hand, the Greenworks mower, with its brushless motor and 17-inch cutting deck, offers a modern, powerful solution for mowing grass, making it ideal for small to medium-sized yards.

Performance Comparison

When it comes to performance, the Earthwise LSW70021 sweeper functions best on dry leaves and regularly maintained lawns. It typically requires multiple passes to effectively collect debris, making it less optimal for tall grass or uneven terrain. While its 2.6-bushel collection bag provides moderate storage, users may find themselves emptying it multiple times during a cleanup session.

Conversely, the Greenworks mower features a powerful brushless motor that offers a runtime of up to 35 minutes on a single charge. This design not only provides significant cutting power but also reduces noise by about 30% compared to gas mowers. With six adjustable cutting heights and the flexibility to mulch or bag, the Greenworks mower offers versatility that adapts to varying grass types and yard conditions.

Ease of Use

The Earthwise sweeper is designed for straightforward operation, allowing users to push it across the lawn to collect debris. Its adjustable height feature is particularly beneficial for adapting to different terrains, ensuring that the brushes effectively contact the lawn surface. However, users should be prepared for the physical effort involved, as it is a manual push model.

In contrast, the Greenworks 40V mower prioritizes ease of use with its instant push-button start and lightweight design. Weighing significantly less than traditional gas mowers, it allows for easy maneuvering around tight corners and obstacles in the yard. Additionally, the worry-free warranty covering both the tool and battery for three years adds to the user-friendly experience, ensuring peace of mind for customers.

Versatility

The Earthwise LSW70021 is specifically built for leaf and debris collection, making it less versatile than the Greenworks mower. It is not designed to handle wet leaves or heavy debris, which can limit its effectiveness in varying conditions. Despite its functionality for lawn cleanup, its use is somewhat niche, tailored primarily for dry leaves on maintained lawns.

On the other hand, the Greenworks 40V mower excels in versatility with its 2-in-1 mulching and bagging capabilities. This feature allows users to choose between returning nutrients to the lawn through mulching or keeping the yard tidy by bagging clippings. Its ability to handle various grass types with adjustable cutting heights enhances its adaptability, catering to diverse mowing needs.

Maintenance and Durability

The Earthwise sweeper requires minimal maintenance due to its simple mechanical design. However, users must ensure that the brushes are properly adjusted for optimal performance, particularly as lawn conditions change. Its moderate collection bag capacity may require frequent emptying, especially during heavy leaf fall.

In comparison, the Greenworks mower's brushless motor significantly reduces maintenance needs, eliminating concerns about oil changes and pull cords. This motor design not only enhances durability but also extends the lifespan of the mower. Users can expect a quieter operation and a more eco-friendly experience, as there are no fumes associated with gas mowers.

Storage and Portability

The Earthwise LSW70021 is relatively easy to store due to its compact design. As a push model, it can be maneuvered into various storage spaces without much hassle. However, its reliance on manual effort means that it might not be as convenient for those looking for a more automated solution.

The Greenworks 40V mower, while slightly more complex, is designed with portability in mind. It is lightweight and easy to transport, making it a good option for those with small to medium-sized yards. Additionally, it is compatible with over 75 other Greenworks tools, maximizing its utility for homeowners looking to expand their garden equipment without the burden of additional batteries or chargers.

Price Comparison

The price difference between the Earthwise LSW70021 at $129.99 and the Greenworks 40V mower at $279.99 is quite significant, with the Greenworks priced about 115% higher. This price reflects the advanced technology and features of the Greenworks mower, including its brushless motor and cordless convenience. For those primarily interested in leaf collection, the Earthwise presents a budget-friendly option that gets the job done effectively, albeit with limitations in versatility.

Which should you buy?

Ultimately, the choice between the Earthwise LSW70021 and the Greenworks 40V mower hinges on your specific lawn care needs. If you are looking for an affordable solution focused on leaf and debris collection, the Earthwise sweeper is an excellent choice. However, if you require a versatile, powerful mower that provides various cutting options and excellent runtime, the Greenworks mower is worth the investment. The decision should be based on whether you prioritize budget-friendly simplicity or advanced mowing capabilities.