AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc vs Sun Joe Corded Electric Dethatcher & Scarifier
Updated July 2026 — AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc wins on engine size and weight, Sun Joe Corded Electric Dethatcher & Scarifier wins on power and bag capacity.
The AMERISUN mower excels in mowing performance, while the Sun Joe is more economical for lawn maintenance. Choose based on your primary needs.
Why AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc is better
Cutting Power
Gas engine provides more power for thicker grass.
Cutting Width
21-inch deck allows for faster mowing.
Versatility
3-in-1 functionality for mulching, bagging, and discharging.
Why Sun Joe Corded Electric Dethatcher & Scarifier is better
Price
Significantly cheaper at $139.99.
Weight
Lighter and easier to handle for specialized tasks.
Aeration
Designed specifically for lawn health through dethatching.
Overall score
Specifications
| Spec | AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc | Sun Joe Corded Electric Dethatcher & Scarifier |
|---|---|---|
| Engine Type | Gas | Electric |
| Motor Power | 144cc | 12 Amp |
| Height Settings | 6 Levels | 5 Levels |
| Cutting Options | 3-in-1 | Dethatcher |
| Collection Bag | 1.4 Bushel | 8 Gallon |
Dimension comparison
Overview of the AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower
The AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower is designed for small to medium-sized yards, featuring a powerful 144cc 4-cycle engine. Priced at $238.49, it stands out with its durable steel cutting deck and versatile cutting options. Its capability to mulch, bag, and side discharge makes it a comprehensive solution for lawn maintenance. With a sales rank of 8653, it offers efficient performance for homeowners looking to keep their lawns in top shape.
Overview of the Sun Joe Corded Electric Dethatcher & Scarifier
In contrast, the Sun Joe Corded Electric Dethatcher & Scarifier is priced at a more accessible $139.99, making it about 41% cheaper than the AMERISUN mower. This electric model features a 12-amp motor and a 12.6-inch cutting width, catering to those focused on lawn health rather than traditional mowing. With a sales rank of 1870, it emphasizes aeration and thatch removal, providing an essential service for maintaining lush, vibrant grass in gardens and yards.
Power and Performance Comparison
The AMERISUN mower is powered by a 144cc 4-cycle OHV engine, which delivers consistent cutting performance essential for maintaining a tidy lawn. In contrast, the Sun Joe operates on a 12-amp electric motor, which is designed for dethatching and scarifying rather than traditional mowing. While both products are effective in their own right, the AMERISUN's gas engine may provide more power for thicker grass and larger lawns, making it ideal for those needing robust performance.
Cutting Width and Versatility
The AMERISUN features a 21-inch cutting deck, allowing for efficient coverage of larger areas in a single pass. Meanwhile, the Sun Joe has a narrower 12.6-inch cutting width, tailored for targeted dethatching and scarifying. While the AMERISUN excels in mowing, the Sun Joe focuses on enhancing lawn health by aerating and removing thatch. Therefore, if your primary concern is regular mowing, the AMERISUN is preferable. However, if lawn care and maintenance are your focus, the Sun Joe's capabilities in aeration could be more beneficial.
Usability and Maneuverability
When it comes to usability, the AMERISUN mower weighs 68 lbs, making it relatively lightweight and easy to maneuver around obstacles in the yard. It is designed for push operation, giving users control over their mowing paths. On the other hand, the Sun Joe offers a more specialized approach with customizable depth control through 5-position height settings, allowing for tailored lawn care. While the AMERISUN provides a straightforward mowing experience, the Sun Joe's design caters to those needing focused lawn maintenance, showcasing the different usability features of each product.
Maintenance and Cleanup
Maintenance and cleanup differ significantly between the two products. The AMERISUN includes a 1.4-bushel grass catcher that minimizes the frequency of emptying, making it efficient for regular mowing tasks. In contrast, the Sun Joe comes with an 8-gallon detachable collection bag, which is designed for easy cleanup after dethatching. This feature is especially useful for those who prefer a tidy yard without the hassle of frequent maintenance. Depending on your lawn care preferences, each product offers distinct advantages in cleanup and maintenance.
Price Comparison and Value
The AMERISUN is priced at $238.49, while the Sun Joe is available for $139.99, making it approximately $98.50 cheaper. This significant price difference may influence your decision if budget is a primary concern. However, the value derived from each product also depends on your specific lawn care needs. If you require a mower for regular use, the AMERISUN may justify its higher price with its robust features. Conversely, if your focus is on lawn health and maintenance, the Sun Joe provides excellent value at a lower cost.
Which should you buy?
Choosing between the AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower and the Sun Joe Corded Electric Dethatcher & Scarifier depends largely on your lawn care needs. If you prioritize mowing performance and have a medium-sized yard, the AMERISUN offers powerful cutting capabilities and versatility. However, if your main focus is enhancing lawn health through dethatching and scarifying, the Sun Joe is the more economical and specialized option. Ultimately, your decision should reflect your specific lawn maintenance requirements, budget, and preferences.

