Greenworks 40V 17" Cordless Lawn Mower – Brushless vs SENIX 22" Self-Propelled Gas Lawn Mower, Gas
Updated July 2026 — Greenworks 40V 17" Cordless Lawn Mower – Brushless wins on warranty, SENIX 22" Self-Propelled Gas Lawn Mower, Gas wins on runtime and power.
The Greenworks mower is a more affordable, eco-friendly option, while the SENIX offers greater power and versatility for larger lawns.
Why Greenworks 40V 17" Cordless Lawn Mower – Brushless is better
Price
Greenworks is $135.66 cheaper
Weight
Greenworks is lighter and easier to maneuver
Maintenance
Greenworks requires no oil changes
Why SENIX 22" Self-Propelled Gas Lawn Mower, Gas is better
Power
SENIX has a more powerful 170cc engine
Cutting Width
SENIX has a larger 22-inch cutting blade
Traction
SENIX features rear-wheel drive for better hill climbing
Overall score
Specifications
| Spec | Greenworks 40V 17" Cordless Lawn Mower – Brushless | SENIX 22" Self-Propelled Gas Lawn Mower, Gas |
|---|---|---|
| Engine Type | Brushless | Gas |
| Cutting Height | 6 Levels | 6 Levels |
| Drive Type | Push | Self-Propelled |
| Fuel Type | Battery | Gas |
| Emissions | Zero | Yes |
Dimension comparison
Overview of the Products
When it comes to lawn care, both the Greenworks 40V 17" Cordless Lawn Mower and the SENIX 22" Self-Propelled Gas Lawn Mower offer distinct advantages. The Greenworks model is a cordless electric mower priced at $279.99, while the SENIX model is a gas-powered mower retailing for $415.65. This price difference of about 33% highlights the varied technologies and functionalities these mowers bring to the table.
The Greenworks mower boasts a brushless motor that provides a quieter operation and eliminates the need for gas and oil, making it an environmentally friendly choice. On the other hand, the SENIX mower features a powerful 170cc engine that promises reliable performance in tough mowing conditions. Each mower caters to different types of users, emphasizing the choice between convenience and traditional gas power.
Power and Performance
In terms of power, the SENIX mower stands out with its 170cc OHV engine, delivering 3.8 HP and 6.4 lb-ft of torque. This engine is designed for easy starts, boasting a first-pull ignition even after extended storage. The Greenworks mower, however, relies on a 40V battery system capable of providing up to 35 minutes of runtime on a single charge. The brushless motor is not only quieter—30% less noise than gas mowers—but also offers increased efficiency and lower maintenance needs.
Users with larger or thicker grass may find the gas engine's power beneficial, particularly on uneven terrains, while those with smaller yards might appreciate the Greenworks mower's instant start and lightweight design. The performance differences cater to varying lawn care needs, establishing the context in which each mower excels.
Cutting Versatility
Versatility in cutting options is a crucial aspect of any lawn mower, and both models offer impressive features. The Greenworks mower provides a 2-in-1 function that allows users to easily switch between mulching and bagging, which is ideal for maintaining a nutrient-rich lawn or achieving a clean finish. It also includes six adjustable cutting heights to accommodate different grass types and lengths.
In contrast, the SENIX mower offers a 3-in-1 capability that allows for mulching, bagging, and side discharge. This flexibility may appeal to users with larger lawns who need more options for handling clippings effectively. The SENIX also features a robust 22-inch cutting blade, which is larger than the Greenworks' 17-inch blade, allowing for quicker mowing of larger areas.
Ease of Use and Maneuverability
Maneuverability is another crucial factor in selecting a lawn mower. The Greenworks model is lightweight and designed for easy pushing, making it ideal for small to medium-sized yards. Its 17-inch steel deck is not only durable but also contributes to a more manageable mowing experience. The SENIX mower, with its rear-wheel drive and larger 11-inch rear wheels, offers superior traction and control on hilly or uneven terrains, making it easier to navigate challenging landscapes.
While the Greenworks mower is designed for ease of use with its push-button start and minimal maintenance, the SENIX mower's self-propelling feature significantly reduces physical effort during operation. This could be a deciding factor for users who prioritize ease of mobility and require a mower that can handle varied terrain without excessive effort.
Maintenance and Durability
Maintenance is a critical consideration for any lawn mower. The Greenworks 40V model shines with its brushless motor, which requires no oil changes and has no fumes or pull cords. This leads to a more straightforward maintenance routine and a quieter operational experience. Additionally, the Greenworks mower is backed by a generous 3-year warranty for both the tool and the battery, emphasizing its durability and reliability.
Conversely, the SENIX mower features a high-strength steel deck designed for longevity and durability. Its robust construction is complemented by a 2-year warranty, ensuring users are covered for an extended period. The potential for greater wear and tear with gas engines, however, could lead to more frequent maintenance than its electric counterpart, depending on usage conditions.
Environmental Considerations
Environmentally, the choice between these two mowers is significant. The Greenworks mower operates on a 40V battery, producing zero emissions and offering a quieter mowing experience—ideal for eco-conscious users or those living in noise-sensitive areas. The convenience of not having to deal with gas and oil adds to its appeal.
In contrast, the SENIX mower, being gas-powered, does produce emissions and requires fuel management. However, it offers the advantage of extended runtime without the need to recharge, making it suitable for larger properties where electric mowers might struggle. Users must weigh their environmental concerns against the practical needs of their lawn care.
Price Comparison
The price difference between these two mowers is noteworthy, with the Greenworks model priced at $279.99 and the SENIX model at $415.65. This makes the Greenworks mower about 33% cheaper than the SENIX. For budget-conscious consumers or those with smaller lawns, the lower price point of the Greenworks mower may be particularly attractive. However, the SENIX mower, while more expensive, offers features that may justify the cost for users needing a more powerful and versatile machine.
Which should you buy?
Ultimately, the decision between the Greenworks 40V 17" Cordless Lawn Mower and the SENIX 22" Self-Propelled Gas Lawn Mower boils down to individual needs and preferences. The Greenworks mower is ideal for those seeking a lightweight, low-maintenance, and environmentally friendly option for small to medium yards. In contrast, the SENIX mower caters to users looking for robust power and versatility in cutting options, particularly in challenging terrains. Consider your lawn size, mowing habits, and maintenance preferences to determine which mower best fits your needs.

