AMERISUN vs Greenworks 40V 16" Cordless Lawn Mower
Updated July 2026 — AMERISUN wins on sales rank and weight, Greenworks 40V 16" Cordless Lawn Mower wins on price.
The AMERISUN offers better power and cutting efficiency, while the Greenworks excels in convenience and low maintenance.
Why AMERISUN is better
Power
AMERISUN has a powerful gas engine.
Cutting Width
AMERISUN has a wider 21-inch cutting deck.
Price
AMERISUN is cheaper at $224.99.
Why Greenworks 40V 16" Cordless Lawn Mower is better
Weight
Greenworks is lighter and easier to maneuver.
Maintenance
Greenworks requires no gas or oil.
Ecosystem
Greenworks is compatible with 75+ tools.
Overall score
Specifications
| Spec | AMERISUN | Greenworks 40V 16" Cordless Lawn Mower |
|---|---|---|
| Engine Type | Gas | Electric |
| Power | 144cc | 40V |
| Start Type | Recoil | Push-button |
| Maintenance | High | Low |
| Noise Level | Loud | Quiet |
Dimension comparison
Overview of the AMERISUN and Greenworks Lawn Mowers
The AMERISUN 21 Inch Gas Push Lawn Mower is priced at $224.99, making it about 17% cheaper than the Greenworks 40V 16" Cordless Lawn Mower, which retails for $279.99. Both mowers are designed for small to medium-sized yards, but they cater to different user preferences and needs. The AMERISUN offers a traditional gas-powered experience, while the Greenworks model provides the convenience of cordless electric operation.
Power and Performance
The AMERISUN features a powerful 144cc 4-stroke OHV engine, which is designed for consistent cutting performance in various lawn conditions. This robust engine allows the mower to handle thick grass effortlessly. In contrast, the Greenworks mower relies on a 40V battery that provides up to 40 minutes of runtime, sufficient for maintaining lawns up to 1/3 acre. This electric model also boasts a push-button start, eliminating the hassle of pull cords that are typical in gas-powered mowers. For users prioritizing power and traditional mowing experience, the AMERISUN may be preferable, while those seeking convenience might lean towards the Greenworks.
Cutting Width and Efficiency
With a cutting width of 21 inches, the AMERISUN is designed to reduce mowing time effectively, especially in suburban lawns. This wider deck can cover more ground with each pass compared to the Greenworks, which has a 16-inch cutting width. Although the Greenworks mower is lighter, making it easier to maneuver, the AMERISUN’s larger cutting area can be a significant advantage for efficiency. Homeowners with larger or more challenging terrains may find the AMERISUN’s broader deck more beneficial for quicker lawn maintenance.
Weight and Portability
Weighing in at 63 pounds, the AMERISUN is relatively lightweight for a gas mower, which makes it easier to handle than many of its competitors. However, the Greenworks mower is even lighter, at about 35% less weight, making it highly portable and ideal for users with mobility concerns or those who need to navigate uneven terrain. The Greenworks model also features ergonomic handles, enhancing comfort during use and storage. For those who prioritize easy transport and maneuverability, the Greenworks might be the better choice.
Height Adjustment Options
The AMERISUN offers a 6-position height adjustment, allowing users to set the cutting height between 1.5 inches to 3.9 inches. This flexibility is crucial for adapting to different grass types and seasonal growth. In comparison, the Greenworks features a 5-position height control, with settings ranging from 1.25 inches to 3.375 inches. While both mowers provide adequate height adjustments, the AMERISUN offers slightly greater versatility in cutting heights, which may be more appealing to homeowners with diverse lawn conditions.
Maintenance and Operating Costs
One of the standout features of the Greenworks mower is its low maintenance needs. With no gas or oil to manage and no emissions, users can save significantly on operating costs, potentially up to $200 annually compared to gas mowers. The Greenworks model’s quiet operation (under 75dB) also allows for mowing during early or late hours without disturbing neighbors. On the other hand, the AMERISUN, being a gas mower, will require regular maintenance, including oil changes and engine tune-ups, which can add to long-term costs for users.
Ecosystem and Compatibility
The Greenworks mower is part of a larger ecosystem, compatible with over 75 other Greenworks 40V tools, such as trimmers and blowers. This compatibility allows users to share batteries across devices, enhancing the value of the investment. In contrast, the AMERISUN is a standalone product without cross-compatibility with other tools. Homeowners who already own Greenworks tools or plan to expand their outdoor toolkit may find the Greenworks mower offers more value through its interconnected system.
Which should you buy?
Ultimately, the choice between the AMERISUN 21 Inch Gas Push Lawn Mower and the Greenworks 40V 16" Cordless Lawn Mower boils down to individual needs and preferences. If you prioritize power and cutting efficiency, the AMERISUN offers a robust gas engine and wider cutting deck at a lower price. However, for those who value convenience, low maintenance, and the ability to connect with other tools, the Greenworks mower stands out as a more versatile option. Consider your specific lawn care needs, budget, and preference for gas versus electric operation when making your decision.

