Greenworks 40V 17" Cordless Lawn Mower – Brushless vs PowerSmart Self Propelled Gas Lawn Mower 21-inch
Updated July 2026 — Greenworks 40V 17" Cordless Lawn Mower – Brushless wins on runtime and warranty, PowerSmart Self Propelled Gas Lawn Mower 21-inch wins on weight and deck size.
The Greenworks mower excels in quiet operation and low maintenance, while the PowerSmart offers greater cutting efficiency for larger lawns.
Why Greenworks 40V 17" Cordless Lawn Mower – Brushless is better
Noise
30% quieter operation than gas mowers
Maintenance
Zero maintenance required
Weight
Lighter and easier to maneuver
Why PowerSmart Self Propelled Gas Lawn Mower 21-inch is better
Cutting Width
21-inch deck covers more area
Power
170cc engine for improved cutting efficiency
Versatility
3-in-1 functionality for different mowing needs
Overall score
Specifications
| Spec | Greenworks 40V 17" Cordless Lawn Mower – Brushless | PowerSmart Self Propelled Gas Lawn Mower 21-inch |
|---|---|---|
| Engine Type | Brushless | 170cc Gas |
| Cutting Heights | 6 | 6 |
| Power Source | Battery | Gas |
| Start Type | Push Button | Recoil |
| Mulching | Yes | Yes |
Dimension comparison
Overview of the Greenworks 40V 17" Cordless Lawn Mower
The Greenworks 40V 17" Cordless Lawn Mower offers a powerful, battery-operated mowing solution for small to medium yards. Priced at $279.99, it is about 17% cheaper than the competing PowerSmart model. This mower features a brushless motor that significantly reduces noise and maintenance compared to traditional gas mowers. With a runtime of up to 35 minutes on a single charge, it provides a convenient and eco-friendly option for homeowners looking to maintain their lawns without the hassle of cords or gas.
Overview of the PowerSmart Self Propelled Gas Lawn Mower
The PowerSmart Self Propelled Gas Lawn Mower is designed for those who prefer the power and efficiency of a gas engine. Retailing at $339.99, it ranks slightly higher in price compared to the Greenworks model. Equipped with a 170cc 4-cycle engine, this mower excels in cutting efficiency and is ideal for uneven terrains due to its rear-wheel-drive system. With a 21-inch cutting deck, it caters to larger lawns and offers a 3-in-1 capability for mulching, side-discharge, or rear-bagging, making it versatile for various mowing preferences.
Cutting Performance and Versatility
When it comes to cutting performance, the PowerSmart mower has a slight edge with its 21-inch steel deck, enabling it to cover more ground in less time. Its robust engine ensures efficient cutting, particularly in tough grass conditions. On the other hand, the Greenworks mower, with its 17-inch deck, is more suited for smaller spaces but provides flexibility with its 2-in-1 mulching and bagging options. Both mowers offer adjustable cutting heights, but the PowerSmart allows for a more extensive range from 1.5 inches to 3.9 inches, giving users more control over their lawn's appearance.
Ease of Use and Maneuverability
The Greenworks 40V mower is lauded for its lightweight design and easy maneuverability. Weighing significantly less than the PowerSmart, it is easier to push and handle, especially in tight spaces. The push-button start feature further simplifies operation, eliminating the need for pull cords or gas. In contrast, the PowerSmart mower, while self-propelled, is heavier at 54 lbs. However, its rear-wheel-drive system offers excellent traction on slopes and uneven terrain, making it easy to control even on challenging lawns.
Noise and Maintenance
One of the standout features of the Greenworks mower is its brushless motor, which operates about 30% quieter than gas mowers. This makes it an excellent choice for noise-sensitive environments, allowing for early morning or evening mowing without disturbing neighbors. Additionally, the Greenworks model requires zero maintenance, with no oil changes or fumes to worry about. Conversely, the PowerSmart requires regular maintenance typical of gas engines, which may deter users seeking a low-maintenance solution for their lawn care.
Storage and Portability
For those with limited storage space, the Greenworks mower’s compact design is a significant advantage. Its lightweight frame makes it easy to store in smaller sheds or garages. The PowerSmart mower, while foldable to save space, is larger and heavier, which can be a factor for those with constrained storage options. The ability to quickly fold the PowerSmart mower does add convenience, but the overall size still makes it less portable than the Greenworks model.
Warranty and Customer Support
The Greenworks 40V mower comes with an impressive warranty that includes a 3-year tool and battery guarantee, underscoring the brand's confidence in its product's durability. This warranty adds value for users who may be concerned about long-term reliability. The PowerSmart mower also offers solid support, but specific warranty details are not mentioned in the provided data. Potential buyers might find the Greenworks warranty reassuring, especially for a battery-operated model, where battery performance can significantly impact overall satisfaction.
Which should you buy?
Deciding between the Greenworks 40V 17" Cordless Lawn Mower and the PowerSmart Self Propelled Gas Lawn Mower ultimately depends on individual needs and preferences. If you prioritize a quiet, eco-friendly option with minimal maintenance for a smaller yard, the Greenworks mower is an excellent choice at $279.99. Conversely, if you have a larger yard with uneven terrain and prefer the power of a gas engine, the PowerSmart mower, although slightly more expensive at $339.99, provides added cutting efficiency and versatility. Consider your lawn size, terrain type, and personal preferences to make the best choice for your mowing needs.

