AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with vs Greenworks 80V 21" Self-Propelled Cordless Lawn
Updated July 2026 — full head-to-head comparison.
Overview
The AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower is priced at $238.49, making it significantly less expensive than the Greenworks 80V 21" Self-Propelled Cordless Lawn Mower, which retails for $479.99. This difference of $241.50 means that the AMERISUN is approximately 50% cheaper, appealing to budget-conscious consumers. However, the Greenworks mower offers advanced features and technology that may justify its higher price for some users.
Power and Performance
When it comes to power, the Greenworks mower features an 80V brushless motor, which provides 30% more torque than standard models, making it capable of handling tough grass and uneven terrain. In contrast, the AMERISUN is equipped with a 144cc 4-stroke OHV engine that delivers robust cutting power, ideal for small to medium yards. The self-propelled feature of the Greenworks mower allows for easier maneuverability, especially on slopes or uneven ground, while the AMERISUN relies on a push mechanism, which may require more effort from the user.
Cutting Options
The AMERISUN mower boasts a versatile 3-in-1 system that includes mulching, bagging, and side discharge options. This flexibility allows users to choose the best method for their lawn care needs. The Greenworks mower, meanwhile, offers a 4-in-1 system, which adds turbo leaf pickup to its capabilities. This additional feature can be particularly beneficial in the fall when leaves are abundant. Both mowers provide effective cutting options, but the Greenworks model has a slight edge with its enhanced versatility.
Build Quality and Design
The AMERISUN features a durable 21-inch rust-resistant steel deck, designed to withstand regular use in residential yards. It weighs 68 lbs, making it relatively lightweight and easy to maneuver. On the other hand, the Greenworks mower also features a 21-inch steel deck but is designed with a self-propelled mechanism that improves its ease of use. The Greenworks mower is engineered for quieter operation, being three times quieter than gas mowers, which can enhance the mowing experience for users, particularly in residential areas.
Battery Life and Maintenance
The Greenworks 80V mower operates on a rechargeable 4.0Ah battery, providing the convenience of cordless operation without the need for gas. This feature eliminates the hassle of refueling and maintenance associated with gas mowers. In contrast, the AMERISUN requires regular maintenance typical of gas-powered equipment, such as oil changes and spark plug replacements. While the Greenworks mower's battery life can vary based on conditions, it is generally designed for cutting up to 1/2 acre on a single charge, making it suitable for larger lawns without the need for constant refueling.
Additional Features
The Greenworks mower includes LED headlights, allowing for early morning or late evening mowing, enhancing visibility during low-light conditions. This feature can be a significant advantage for users with busy schedules or those who prefer to mow outside of peak hours. The AMERISUN lacks this feature but compensates with a foldable handle for easier storage, appealing to those with limited garage space. Both mowers offer unique features that cater to different user preferences.
Price Comparison
In terms of pricing, the AMERISUN is currently available for $238.49, while the Greenworks mower costs $479.99. This substantial price difference of about 50% may play a crucial role in a buyer’s decision. While the Greenworks mower offers advanced technology and features, many homeowners with smaller yards may find the AMERISUN provides sufficient performance at a more budget-friendly price.
Which should you buy?
Choosing between the AMERISUN 21-Inch Push Gas Lawn Mower and the Greenworks 80V Self-Propelled Cordless Lawn Mower ultimately depends on your specific needs and budget. If you prioritize affordability and straightforward performance for a smaller yard, the AMERISUN may be the better option for you. However, if you are looking for advanced features, ease of use, and a quieter mowing experience, the Greenworks mower justifies its higher price with enhanced technology and performance capabilities. Consider your lawn size, maintenance preferences, and budget to make the best decision for your lawn care needs.

