AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for vs Greenworks 40V 17" Cordless Lawn Mower – Brushless
Updated July 2026 — AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for wins on weight and length, Greenworks 40V 17" Cordless Lawn Mower – Brushless wins on runtime and battery.
The AMRISUN mower excels in power and cutting versatility, while the Greenworks mower offers convenience and lower maintenance. Choose based on your yard size and maintenance preference.
Why AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for is better
Power
AMRISUN has a 170cc gas engine for larger yards.
Cutting Width
AMRISUN features a 21-inch cutting width.
Versatility
AMRISUN offers a 3-in-1 mowing function.
Why Greenworks 40V 17" Cordless Lawn Mower – Brushless is better
Maintenance
Greenworks has a brushless motor requiring no oil changes.
Noise Level
Greenworks is 30% quieter than gas mowers.
Price
Greenworks is 17% cheaper than AMRISUN.
Overall score
Specifications
| Spec | AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for | Greenworks 40V 17" Cordless Lawn Mower – Brushless |
|---|---|---|
| Engine Type | Gas | Cordless |
| Cutting Height | 6 Positions | 6 Positions |
| Power Source | 170cc Gas | 40V Battery |
| Mowing Function | 3-in-1 | 2-in-1 |
| Warranty | 1 Year | 3 Years |
Dimension comparison
Overview of the AMRISUN 21-Inch Self-Propelled Gas Lawn Mower
The AMRISUN 21-Inch Self-Propelled Gas Lawn Mower stands out with its powerful 170cc 4-stroke engine. Priced at $314.10, it is geared towards homeowners with medium to large yards seeking a reliable and robust mowing option. This mower features a 3-in-1 mowing function, allowing users to mulch, side discharge, or collect grass clippings, which enhances versatility in lawn care. With a sales rank of 13,987, it is a popular choice among gas lawn mowers.
Overview of the Greenworks 40V 17" Cordless Lawn Mower
The Greenworks 40V 17" Cordless Lawn Mower is a notable alternative for those preferring a cordless solution, priced at $279.99. This mower is designed for small to medium yards and offers a runtime of up to 35 minutes on a single charge. Its brushless motor enhances power while reducing noise by 30% compared to gas mowers. With a sales rank of 5,110, it is more popular than the AMRISUN in the cordless category.
Power and Performance Comparison
When it comes to power, the AMRISUN mower features a robust 170cc gas engine, providing consistent cutting performance for larger yards. In contrast, the Greenworks mower relies on a 40V battery, offering up to 35 minutes of runtime. While the gas engine can operate continuously without the need for recharging, the battery may necessitate downtime if the area exceeds its runtime capacity. This difference in power source may influence your decision based on the size and nature of your lawn.
Cutting Versatility
The AMRISUN mower boasts a versatile 3-in-1 function, allowing for mulching, side discharge, or bagging, which is beneficial for various mowing preferences and seasonal needs. The Greenworks mower also offers 2-in-1 functionality with mulching and bagging options, but its cutting width is narrower at 17 inches compared to the AMRISUN's 21 inches. If you prioritize cutting versatility in your lawn care, the AMRISUN may provide more options, especially for larger areas.
Maneuverability and Design
For maneuverability, the AMRISUN mower is equipped with high rear wheels and a self-propelled design, making it easier to navigate hills and uneven terrain. This feature is particularly beneficial for those with challenging yard layouts. On the other hand, the Greenworks mower is lightweight and designed for easy pushing, which may be appealing for users looking for a less strenuous mowing experience. The choice between these two will depend on your yard's topography and your physical comfort while mowing.
Maintenance and Convenience
The Greenworks mower has the advantage of a brushless motor, which not only provides longer motor life but also eliminates the need for oil changes and reduces noise. This makes it a low-maintenance option for busy homeowners. Conversely, the AMRISUN mower, being gas-powered, will require regular maintenance, including oil changes and fueling. If convenience and minimal upkeep are high priorities for you, the Greenworks mower may be the more attractive option.
Price Comparison
In terms of pricing, the AMRISUN is currently listed at $314.10, while the Greenworks mower is priced at $279.99. This makes the Greenworks mower about 17% cheaper than the AMRISUN, offering a more budget-friendly choice without sacrificing essential features. However, the choice between the two should also consider the different functionalities and performance levels provided by each mower.
Which should you buy?
Choosing between the AMRISUN 21-Inch Self-Propelled Gas Lawn Mower and the Greenworks 40V 17" Cordless Lawn Mower ultimately depends on your specific needs. If you have a larger yard that requires powerful cutting performance and versatility, the AMRISUN may be your best bet. Conversely, if you prefer a quieter, low-maintenance option for a smaller lawn, the Greenworks mower stands out as a more convenient choice. Evaluate your lawn size, terrain, and maintenance preferences to make the most informed decision.

