AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc vs Greenworks 80V 21" Self-Propelled Cordless Lawn
Updated July 2026 — AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc wins on sales rank and height adjustment, Greenworks 80V 21" Self-Propelled Cordless Lawn wins on price and weight.
The AMERISUN offers affordability and essential features, while the Greenworks excels in advanced technology and convenience.
Why AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc is better
Price
AMERISUN is significantly cheaper at $238.49.
Weight
AMERISUN is lighter at 68 lbs.
Height Adjustment
AMERISUN has a 6-position height adjustment.
Why Greenworks 80V 21" Self-Propelled Cordless Lawn is better
Self-Propelled
Greenworks offers self-propulsion for easier handling.
Quieter Operation
Greenworks operates quietly with no gas.
Battery Compatibility
Greenworks is compatible with 75+ tools.
Overall score
Specifications
| Spec | AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc | Greenworks 80V 21" Self-Propelled Cordless Lawn |
|---|---|---|
| Engine Type | Gas | Electric |
| Power Source | Gasoline | Battery |
| Cutting System | 3-in-1 | 4-in-1 |
| Torque | N/A | 30% more |
| LED Lights | No | Yes |
Dimension comparison
Design and Build Quality
The AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower features a durable steel cutting deck and a lightweight design, making it easy to maneuver. Weighing only 68 lbs, it’s designed for efficient operation in small to medium-sized yards. In contrast, the Greenworks 80V 21" Self-Propelled Cordless Lawn Mower boasts a robust steel deck as well, emphasizing durability and performance. It is self-propelled, which allows for easier handling, especially on uneven terrain. While the AMERISUN is a push mower, the Greenworks model offers advanced user convenience with its rear wheel drive and variable speed control, enhancing traction and control.
Power and Performance
The AMERISUN mower is powered by a reliable 144cc 4-cycle OHV engine that offers consistent cutting performance, ideal for regular yard maintenance. This gas mower can efficiently tackle thick grass due to its high-efficiency engine. On the other hand, the Greenworks mower utilizes a brushless motor that delivers up to 30% more torque than standard motors, enhancing its cutting ability. While the AMERISUN operates on gas, which can be an advantage in terms of power, the Greenworks mower excels in quieter operation and eliminates the hassle of gas, making it a more environmentally friendly option.
Cutting Capability
In terms of cutting width, both the AMERISUN and Greenworks models feature a 21-inch cutting path. However, the AMERISUN offers a versatile 3-in-1 system that includes mulching, bagging, and side discharge options. This flexibility allows users to choose their preferred method for lawn care. Meanwhile, the Greenworks mower also provides a 4-in-1 capability, adding turbo leaf pickup to the mix. This additional feature makes it particularly effective for managing leaves and debris, appealing to homeowners with diverse lawn care needs.
Height Adjustment Features
The AMERISUN lawn mower includes a 6-position height adjustment feature, allowing users to customize their cut from 1.5 inches to 3.9 inches. This adaptability is crucial for managing varying grass types and seasonal conditions. In comparison, the Greenworks mower does not specify a height adjustment feature, which may limit its adaptability for different lawn care tasks. The AMERISUN's ability to precisely adjust cutting height makes it a more versatile choice for users who need to tailor their mowing experience to specific lawn conditions.
Price Comparison
The AMERISUN lawn mower is priced at $238.49, which makes it about 50% cheaper than the Greenworks model, currently priced at $479.99. This significant price difference may be a decisive factor for budget-conscious consumers. While the Greenworks mower offers advanced features and technology, the AMERISUN provides essential performance at a much lower cost, making it an appealing option for those with smaller yards or less frequent mowing needs.
Sales Ranking and Popularity
The AMERISUN mower holds a sales rank of 8,653, whereas the Greenworks mower has a significantly better ranking at 1,880. This higher rank indicates that the Greenworks mower is more popular among consumers, likely due to its advanced features and ease of use. A higher sales rank can often reflect customer satisfaction and overall demand, suggesting that users may prefer the self-propelled convenience of the Greenworks model over the traditional push design of the AMERISUN.
User Experience and Convenience
The AMERISUN lawn mower is designed for straightforward operation with an easy pull-start system. It’s lightweight and easy to maneuver, making it suitable for those who prefer a hands-on approach. In contrast, the Greenworks mower's self-propelled feature and LED headlights enhance usability, allowing for mowing in low-light conditions and reducing physical exertion. The convenience of a cordless design means users can enjoy a hassle-free experience without worrying about fuel or cords, making it ideal for modern homeowners.
Which should you buy?
Choosing between the AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower and the Greenworks 80V 21" Self-Propelled Cordless Lawn Mower ultimately depends on your specific needs and preferences. If you’re looking for affordability and a straightforward push mower for small to medium yards, the AMERISUN is an excellent choice at $238.49. However, if advanced features like self-propulsion and a quieter operation matter more to you, and you’re willing to invest more, the Greenworks mower at $479.99 offers superior performance and convenience.

