AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with vs Greenworks 40V 17" Cordless Lawn Mower – Brushless
Updated July 2026 — AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with wins on weight and cutting deck, Greenworks 40V 17" Cordless Lawn Mower – Brushless wins on runtime and battery.
The AMERISUN mower offers a larger cutting deck and lower price, while the Greenworks provides a quieter, low-maintenance option. Overall, the AMERISUN is the better choice for those prioritizing performance and cost.
Why AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with is better
Price
AMERISUN is $238.49 compared to Greenworks at $279.99.
Cutting Deck
AMERISUN has a 21-inch cutting deck, larger than Greenworks' 17-inch.
Mowing Versatility
AMERISUN offers 3-in-1 capabilities: mulching, bagging, and side discharge.
Why Greenworks 40V 17" Cordless Lawn Mower – Brushless is better
Noise Level
Greenworks is 30% quieter than gas mowers.
Maintenance
Greenworks requires no oil changes or gas.
Warranty
Greenworks includes a 3-year warranty for tool and battery.
Overall score
Specifications
| Spec | AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with | Greenworks 40V 17" Cordless Lawn Mower – Brushless |
|---|---|---|
| Engine Type | Gas | Battery |
| Power | 144cc | 40V |
| Mowing Options | 3-in-1 | 2-in-1 |
| Noise Level | Louder | Quieter |
| Maintenance | High | Low |
Dimension comparison
Overview of the AMERISUN 21-Inch Mower
The AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower is a powerful gas-powered option designed for efficient yard care. Priced at $238.49, it features a 144cc 4-stroke OHV engine, making it suitable for small to medium yards. With a robust 21-inch rust-resistant steel deck, this mower offers a wide cutting area, which can significantly reduce mowing time. Its versatility is further enhanced by a 3-in-1 mowing capability—mulching, bagging, and side discharge—allowing users to adapt based on their lawn care needs.
Overview of the Greenworks 40V Mower
The Greenworks 40V 17" Cordless Lawn Mower is a battery-operated alternative priced at $279.99. It features a brushless motor that provides increased power and reduced noise compared to traditional gas mowers. This mower includes a 4.0Ah battery that delivers up to 35 minutes of runtime, making it ideal for small to medium yards up to 1/4 acre. The 2-in-1 functionality allows for both mulching and bagging, offering flexibility based on user preference.
Power and Performance
When it comes to power, the AMERISUN mower utilizes a 144cc engine, which delivers robust cutting performance suitable for various grass types. In contrast, the Greenworks mower, powered by a 40V battery and brushless motor, provides a quieter operation that is about 30% less noisy than its gas counterparts. While the AMERISUN is geared towards those who prefer traditional gas mowers, the Greenworks offers an eco-friendly alternative with no emissions and no need for gasoline, making it appealing to environmentally conscious users.
Cutting Capabilities
The AMERISUN boasts a 21-inch cutting deck, which is larger than the 17-inch deck of the Greenworks mower. This larger size allows for fewer passes when mowing, which can be a significant time-saver. However, the Greenworks mower does offer six cutting height adjustments, providing users with flexibility to tackle various grass heights. While both mowers feature mulching options, the AMERISUN's 3-in-1 capabilities provide added versatility, allowing for side discharge in addition to mulching and bagging.
Maneuverability and Weight
Weighing in at 68 pounds, the AMERISUN is considered lightweight for a gas mower, allowing for easy maneuverability across different terrains. The Greenworks mower, being battery-operated, is also designed for easy handling, but it is not specified how much it weighs. The AMERISUN's durable wheels and foldable handle further enhance its usability, making it convenient for storage. The Greenworks, on the other hand, has the advantage of being cordless, allowing users to navigate freely without the hassle of tangled cords.
Maintenance and Longevity
The AMERISUN mower requires typical gas mower maintenance, including oil changes and filter replacements, which can be a drawback for some users. Conversely, the Greenworks mower features a brushless motor that eliminates the need for oil or other maintenance associated with gas engines, making it a low-maintenance option. Additionally, the Greenworks includes a worry-free warranty of 3 years for the tool and battery, providing peace of mind regarding its longevity and durability.
Price Comparison
With the AMERISUN priced at $238.49 and the Greenworks at $279.99, the AMERISUN is about 15% cheaper. This price difference may be a deciding factor for budget-conscious consumers looking for a reliable gas mower. However, it's essential to consider the long-term costs associated with gas maintenance versus the convenience and reduced operating costs of a cordless mower like the Greenworks. The initial investment might lean towards the Greenworks, but potential savings on gas and maintenance could make it a worthwhile choice over time.
Which should you buy?
Choosing between the AMERISUN 21-Inch Push Gas Lawn Mower and the Greenworks 40V Cordless Lawn Mower ultimately depends on your specific needs and preferences. If you prefer a powerful gas mower with a larger cutting deck and versatile mowing options, the AMERISUN is a solid choice. However, if you're looking for a quieter, low-maintenance, eco-friendly option, the Greenworks mower may be more appealing. Consider your yard size, maintenance preferences, and budget when making your decision.