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Greenworks 40V 17" Cordless Lawn Mower – Brushless vs SENIX 144 cc Gas Lawn Mower,

Updated July 2026 — Greenworks 40V 17" Cordless Lawn Mower – Brushless wins on runtime and warranty, SENIX 144 cc Gas Lawn Mower, wins on noise level and weight.

The Greenworks mower is quieter and more environmentally friendly, while the SENIX offers more power for larger lawns.

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

Noise Level

30% quieter than gas mowers

Maintenance

No oil changes or gas refills needed

Environmental Impact

Battery-powered with zero emissions

Why SENIX 144 cc Gas Lawn Mower, is better

Power

144 cc engine for tougher jobs

Cutting Width

21-inch deck for larger areas

Terrain Handling

High wheel design for rugged terrain

Overall score

Greenworks 40V 17" Cordless Lawn Mower – Brushless
85
SENIX 144 cc Gas Lawn Mower,
75

Specifications

SpecGreenworks 40V 17" Cordless Lawn Mower – BrushlessSENIX 144 cc Gas Lawn Mower,
Engine TypeBrushless4-Cycle
Battery IncludedYesNo
Cutting Heights66
Fuel TypeElectricGas
Price$279.99$254.99

Dimension comparison

Greenworks 40V 17" Cordless Lawn Mower – BrushlessSENIX 144 cc Gas Lawn Mower,

Overview of the Greenworks 40V 17" Cordless Lawn Mower

The Greenworks 40V 17" Cordless Lawn Mower offers a powerful cordless performance with a brushless motor, making it an excellent choice for small to medium-sized yards. Priced at $279.99, this mower provides up to 35 minutes of runtime on a single charge with its included 4.0Ah battery. Additionally, it features a 2-in-1 design that allows you to mulch or bag grass clippings, giving you versatility in lawn care.

The mower's lightweight design and 17-inch steel deck make it easy to maneuver, and it operates at a noise level that is 30% quieter than gas mowers. With a sales rank of 5110, it is well-regarded among users looking for an efficient and environmentally friendly mowing solution.

Overview of the SENIX 144 cc Gas Lawn Mower

The SENIX 144 cc Gas Lawn Mower stands out with its robust 4-cycle engine, providing explosive power for mowing tasks. At a price of $254.99, it is about 9% cheaper than the Greenworks mower. This model features a wider 21-inch cutting deck, which allows for more efficient coverage, making it suitable for larger lawns.

With a sales rank of 18401, it may not be as popular as the Greenworks mower, but it compensates with its high wheel design, allowing for better maneuverability on rugged terrain. The mower also includes a 2-in-1 function for mulching and side discharge, as well as six adjustable cutting heights for varying grass types.

Performance Comparison

When it comes to performance, the Greenworks 40V mower boasts a brushless motor that provides efficient power and reduced noise. Its runtime of up to 35 minutes on a full charge is suitable for smaller lawns, but may require recharging for larger areas. In contrast, the SENIX gas mower features a powerful 144 cc engine, which allows for continuous operation without the need for charging, making it ideal for extensive mowing tasks.

While the Greenworks mower is quieter, the SENIX mower's gas engine is designed for tougher jobs and can handle steep slopes and uneven terrain more effectively. This makes the Greenworks a better choice for residential areas where noise might be a concern, while the SENIX is more suited for larger, mixed-terrain properties.

Versatility in Usage

The Greenworks 40V mower offers a 2-in-1 capability, allowing users to choose between mulching or bagging, which is essential for maintaining a healthy lawn. It has six adjustable cutting heights, making it adaptable to different grass types and lengths. This versatility is particularly beneficial for homeowners who take pride in their lawn's appearance.

On the other hand, the SENIX mower also features a 2-in-1 design with mulching and side discharge options. Its 21-inch cutting width can cover more ground quickly, which is an advantage for those with larger properties. The high wheel design enhances its ability to navigate across uneven terrain, making it versatile in various mowing conditions.

Maintenance Requirements

The Greenworks mower requires minimal maintenance thanks to its brushless motor, which means no oil changes or gas refills. This aspect not only saves time but also reduces the environmental impact, as there are no fumes produced during operation. The worry-free warranty covering both the tool and battery for three years adds to its appeal for users looking for a hassle-free experience.

In contrast, the SENIX mower, being gas-powered, will require regular maintenance typical of gas engines, including oil changes and fuel management. Although it comes with a 2-year warranty, the ongoing upkeep may be a downside for those who prefer a low-maintenance solution.

Weight and Maneuverability

The Greenworks 40V mower is designed to be lightweight, making it easy to push and maneuver, especially in tight spaces. Its 17-inch design enhances portability, which can be particularly advantageous for homeowners with smaller lawns or intricate landscaping.

Conversely, the SENIX mower, with its larger 21-inch cutting deck and high wheel design, is slightly heavier but is engineered for better traction and stability on challenging terrains. While it may be less nimble in confined areas, its robust design compensates for this by allowing it to handle rough ground more efficiently.

Environmental Impact

The Greenworks 40V mower is an eco-friendly choice, operating on battery power without emitting harmful gases or producing noise pollution. This makes it an ideal option for environmentally conscious consumers or those living in noise-sensitive neighborhoods.

The SENIX gas mower, while powerful, has a larger environmental footprint due to its gas consumption and emissions. Users who prioritize sustainability may lean towards the Greenworks model for its cleaner operation, while those who need high performance for larger areas might consider the trade-offs of the SENIX mower's gas engine.

Which should you buy?

Deciding between the Greenworks 40V 17" Cordless Lawn Mower and the SENIX 144 cc Gas Lawn Mower depends on your specific needs and yard conditions. If you have a smaller lawn and value a quieter, low-maintenance option, the Greenworks mower is an excellent choice, especially given its versatility and environmental benefits. However, if you have a larger property with varied terrain and require a more powerful mower that doesn't rely on battery life, the SENIX mower may be worth considering. Ultimately, both mowers offer distinct advantages, making your choice contingent on the size of your lawn and your personal preferences for maintenance and performance.