AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for vs PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn
Updated July 2026 — AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for wins on weight, PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn wins on front wheels.
The AMRISUN offers a more powerful engine and better maneuverability, while the PowerSmart is more budget-friendly and popular among users.
Why AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for is better
Engine Power
AMRISUN has a 4-stroke engine for stronger cutting performance.
Maneuverability
High-wheel design aids in navigating uneven terrain.
Build Quality
Heavy-duty steel deck enhances durability.
Why PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn is better
Price
PowerSmart is $16.61 cheaper.
Bestseller Rank
PowerSmart ranks higher at 7264.
Weight
PowerSmart is lighter, making it easier to handle.
Overall score
Specifications
| Spec | AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for | PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn |
|---|---|---|
| Engine Type | 4-Stroke | OHV |
| Cutting Modes | 3-in-1 | 3-in-1 |
| Grass Catcher | 1.4-bushel | 1.4-bushel |
| Adjustable Height | 1.5-3.9 in | 1.5-3.9 in |
| Deck Material | Steel | Steel |
Dimension comparison
Overview of AMRISUN and PowerSmart Lawn Mowers
The AMRISUN 21-Inch Self-Propelled Gas Lawn Mower is priced at $314.10, while the PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower costs $297.49, making the PowerSmart about 5% cheaper. Both mowers are designed for medium to large yards and offer a 21-inch cutting width, but they come with different features that cater to various mowing preferences. The AMRISUN boasts a powerful 170cc 4-stroke engine, while the PowerSmart features a 170cc OHV engine, both of which promise reliable performance for yard work.
Engine Performance
The engine performance of both mowers is impressive yet distinct. The AMRISUN is equipped with a 170cc 4-stroke engine, delivering strong cutting performance and easy starting, which is crucial for maintaining larger yards. On the other hand, the PowerSmart also features a reliable 170cc OHV engine, known for its smooth start-up and consistent performance, ideal for tackling tough mowing jobs. Both engines are designed to handle the demands of medium to large yards, but the AMRISUN's 4-stroke engine may provide a slight edge in terms of cutting power for those particularly challenging areas.
Cutting Versatility
When it comes to cutting versatility, both mowers shine with their 3-in-1 functionality. The AMRISUN allows for mulching, side discharge, or collecting grass clippings in the rear bag, which is great for diverse lawn care needs. Similarly, the PowerSmart offers bagging, mulching, and rear discharge options, allowing users to switch between modes seamlessly. Both models come with a 1.4-bushel grass catcher, ensuring efficient collection of clippings. This versatility makes both mowers suitable for various lawn conditions, catering to the preferences of different users.
Height Adjustment Features
Height adjustment is a vital feature for any lawn mower, and both the AMRISUN and PowerSmart provide a 6-position adjustable cutting height ranging from 1.5 inches to 3.9 inches. This allows users to customize their lawn's look according to the season or personal preference. The ease of adjusting the cutting height with a single lever on both models ensures that users can quickly adapt to changing grass lengths, making mowing more efficient and effective.
Maneuverability and Design
Maneuverability is crucial for effective lawn care, particularly in uneven terrains. The AMRISUN features a high-wheel self-propelled design with 10-inch rear and 7-inch front wheels, facilitating smooth navigation over hills and slopes. In contrast, the PowerSmart also has large rear wheels measuring 10 inches, ensuring excellent traction and maneuverability. Both mowers are designed for easy handling, but the AMRISUN's high-wheel design may provide a slight advantage when tackling more challenging landscapes.
Build Quality and Durability
Both mowers are constructed with durability in mind, featuring a robust steel deck that promises longevity. The AMRISUN's heavy-duty steel deck is designed to withstand the rigors of regular use, while the PowerSmart's steel construction also ensures it can handle tough mowing jobs. The AMRISUN includes a foldable handle for compact storage, which is a practical feature for those with limited space. Meanwhile, the PowerSmart’s build quality is comparable, offering reliability for extended use. Both mowers are built to last, making them worthy investments for lawn care.
Price Comparison
The AMRISUN is priced at $314.10, while the PowerSmart is available for $297.49, making the PowerSmart approximately $16.61 cheaper. This price difference of about 5% may influence buyers looking for a more budget-friendly option without sacrificing essential features. Given that the PowerSmart also holds a higher bestseller rank at 7264 compared to the AMRISUN's rank of 13987, it may be appealing to those who value both cost-effectiveness and popularity among users.
Which should you buy?
Deciding between the AMRISUN and the PowerSmart ultimately depends on individual preferences and lawn care needs. If you prioritize a powerful engine with a proven cutting performance and appreciate the high-wheel design for maneuverability, the AMRISUN might be the right choice, despite its higher price. However, if you are looking for a slightly more affordable option that still offers reliable performance and versatility, the PowerSmart stands out as a strong contender. Both mowers are excellent choices for maintaining medium to large yards, but the PowerSmart's lower price and better bestseller rank could sway budget-conscious buyers.

