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Greenworks 40V 17" Cordless Lawn Mower – Brushless vs Greenworks 80V 21” Brushless Cordless Electric

Updated July 2026 — Greenworks 40V 17" Cordless Lawn Mower – Brushless wins on runtime and battery, Greenworks 80V 21” Brushless Cordless Electric wins on price and weight.

The Greenworks 80V 21” Brushless model offers superior performance and versatility, making it the better choice for larger lawns. However, the 40V model is more budget-friendly for smaller yards.

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

Price

40V model is $279.99, significantly cheaper.

Weight

40V model is lightweight and easy to maneuver.

Runtime

40V model offers sufficient runtime for small lawns.

Why Greenworks 80V 21” Brushless Cordless Electric is better

Power

80V model has a more powerful motor.

Versatility

80V model features a 3-in-1 system.

Warranty

80V model comes with a 4-year warranty.

Overall score

Greenworks 40V 17" Cordless Lawn Mower – Brushless
75
Greenworks 80V 21” Brushless Cordless Electric
88

Specifications

SpecGreenworks 40V 17" Cordless Lawn Mower – BrushlessGreenworks 80V 21” Brushless Cordless Electric
Motor TypeBrushlessBrushless
Cutting Heights67
Functionality2-in-13-in-1
Battery Type4.0Ah2x2.0Ah
Noise Level30% quieter30% quieter

Dimension comparison

Greenworks 40V 17" Cordless Lawn Mower – BrushlessGreenworks 80V 21” Brushless Cordless Electric

Overview of the Greenworks 40V 17" Cordless Lawn Mower

The Greenworks 40V 17" Cordless Lawn Mower is a more budget-friendly option, priced at $279.99. It is designed for small to medium yards, offering up to 35 minutes of runtime with its 4.0Ah battery. This mower is well-suited for homeowners seeking an efficient and quiet lawn care solution. Its brushless motor provides better performance and a quieter operation compared to gas mowers, making it ideal for residential areas where noise could be a concern.

Overview of the Greenworks 80V 21” Brushless

The Greenworks 80V 21” Brushless model is a premium choice, coming in at $499.99. This mower is part of a comprehensive combo kit that includes a blower and a string trimmer, making it a versatile option for anyone looking to tackle various lawn maintenance tasks. With its 21-inch steel deck and powerful brushless motor, this mower offers more cutting power and a larger cutting area, making it suitable for bigger lawns. Additionally, it features a 3-in-1 system that allows for mulching, rear bagging, and side discharge.

Performance Comparison

In terms of performance, the Greenworks 40V 17" offers a runtime of about 35 minutes on a single charge, which is adequate for smaller lawns. Its brushless motor ensures that it operates 30% quieter than traditional gas mowers, making it a great choice for noise-sensitive environments. On the other hand, the Greenworks 80V 21” Brushless model boasts a more powerful 80V brushless motor, designed for efficient performance across various lawn care tasks. This mower is better equipped for larger yards and more demanding mowing conditions.

Versatility in Use

The Greenworks 40V 17" mower has a 2-in-1 functionality that allows users to mulch or bag clippings easily, which is perfect for maintaining smaller yards cleanly. With six cutting heights adjustable via a single lever, it provides versatility for different grass types. In comparison, the Greenworks 80V 21” model features a 3-in-1 system that offers even more versatility, allowing users to mulch, bag, or side discharge clippings as needed. This additional flexibility can be particularly useful in varying lawn care conditions.

Ease of Use

Both mowers are designed with user-friendliness in mind. The Greenworks 40V 17" is lightweight, making it easy to maneuver around tight spots, which is essential for smaller yards. It also includes a grass bag for collecting clippings. The Greenworks 80V 21” Brushless mower adds to this convenience with features like a 7-position height adjustment, LED lights for low-light conditions, and a hand-push design that enhances user comfort. It also has the advantage of vertical storage capability, which is beneficial for those with limited storage space.

Battery and Charging

When it comes to battery performance, the Greenworks 40V 17" mower includes a single 4.0Ah battery, providing sufficient power for small to medium lawns. Meanwhile, the Greenworks 80V 21” model comes with two 2.0Ah batteries and a rapid 4A charger, allowing for quick battery swaps and less downtime. This setup offers increased convenience for users with larger yards, ensuring they can complete their tasks without lengthy interruptions.

Warranty and Support

The Greenworks 40V 17" mower includes a worry-free warranty of three years for both the tool and battery, providing peace of mind for buyers. Additionally, it is compatible with over 75 Greenworks 40V tools, which adds more value for users who own multiple Greenworks products. In contrast, the Greenworks 80V 21” Brushless model comes with a more comprehensive four-year warranty, which is a significant benefit for those looking for long-term reliability. This mower also has compatibility with the 75+ Greenworks tools, making it a versatile option for existing Greenworks users.

Which should you buy?

Choosing between the Greenworks 40V 17" Cordless Lawn Mower and the Greenworks 80V 21” Brushless model ultimately depends on your specific lawn care needs and budget. The 40V model is about 44% cheaper at $279.99 and is ideal for smaller yards, while the 80V model, priced at $499.99, is a superior choice for larger areas and comes with additional tools. If versatility and larger cutting capacity are priorities, the 80V model is worth the investment. However, if you're looking for a straightforward, budget-friendly option for a small yard, the 40V mower will serve you well.