AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc vs PowerSmart Self Propelled Gas Lawn Mower 21-inch
Updated July 2026 — AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc wins on weight, PowerSmart Self Propelled Gas Lawn Mower 21-inch wins on engine size.
The AMERISUN offers solid performance at a lower price, while the PowerSmart provides more power and advanced features. Choose based on your specific needs.
Why AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc is better
Price
AMERISUN is $101.50 cheaper
Weight
AMERISUN is heavier, providing stability
Maneuverability
AMERISUN is easier to control in open spaces
Why PowerSmart Self Propelled Gas Lawn Mower 21-inch is better
Engine Power
PowerSmart has a 170cc engine
Self-Propelled
PowerSmart features a self-propelled system
Storage
PowerSmart has a foldable design for easy storage
Overall score
Specifications
| Spec | AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc | PowerSmart Self Propelled Gas Lawn Mower 21-inch |
|---|---|---|
| Engine Type | 4-Cycle OHV | 4-Cycle OHV |
| Mowing Options | 3-in-1 | 3-in-1 |
| Height Range | 1.5"-3.9" | 1.5"-3.9" |
| Start Type | Pull Start | Recoil Starter |
| Drive Type | Push | Self-Propelled |
Dimension comparison
Introduction to Lawn Mowers
When choosing a lawn mower, understanding the differences in features, performance, and pricing can significantly impact your decision. In this comparison, we will examine the AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower and the PowerSmart Self Propelled Gas Lawn Mower. With prices of $238.49 and $339.99 respectively, the AMERISUN offers a more budget-friendly option, but the PowerSmart boasts advanced features that may justify its higher cost.
Engine Power and Performance
The AMERISUN features a 144cc 4-cycle OHV engine, while the PowerSmart is equipped with a more powerful 170cc 4-cycle OHV engine. This means that the PowerSmart is designed to deliver improved cutting efficiency, which could be beneficial for thicker grass or larger lawns. The AMERISUN engine is still effective, particularly for small to medium yards, and its easy pull-start system ensures quick ignition. However, if you require a mower that can handle more demanding conditions, the additional power of the PowerSmart may be worth the extra $101.50.
Cutting Deck Construction
Both mowers feature a 21-inch steel cutting deck, providing durability and stability during operation. The robust construction of the AMERISUN's deck is ideal for regular lawn care, while the PowerSmart's deck is designed not only for longevity but also incorporates a superior mulching blade, which can enhance mowing efficiency. The similarity in deck size means that both mowers can cover the same area in a single pass, but the PowerSmart's deck may offer a slight edge in performance due to its specialized blade design.
Versatility in Mowing Options
The AMERISUN is notable for its 3-in-1 functionality, allowing for mulching, bagging, and side discharge. This feature makes it versatile for different lawn care needs. The PowerSmart also offers a 3-in-1 capability, with similar options for mulching, side discharge, and rear-bagging. Both mowers include a 1.4-bushel grass catcher, minimizing the need for frequent emptying. This equivalence means that the choice between these two models in terms of versatility may be influenced more by other factors, such as engine power and self-propulsion.
Height Adjustment Features
Both mowers provide adjustable cutting heights ranging from 1.5 inches to 3.9 inches, with the AMERISUN offering 6-position height adjustment. This allows users to customize their cut for various grass types and seasonal conditions. The PowerSmart also includes a 6-position height adjustment feature, ensuring that both mowers can accommodate different mowing preferences. The ease of adjusting the cutting heights is essential for achieving the desired lawn finish, and in this aspect, both models perform equally well.
Weight and Maneuverability
The AMERISUN weighs 68 lbs, while the PowerSmart is lighter at 54 lbs. This weight difference can significantly affect maneuverability, especially in tight spaces or when navigating around obstacles in your yard. The lightweight design of the PowerSmart allows for easier control and operation, making it an excellent choice for those who prioritize ease of use. Conversely, the AMERISUN's heavier build may provide more stability during operation, especially on uneven terrain.
Ease of Storage
The PowerSmart features a foldable design that saves 70% of storage space, making it convenient for those with limited storage options. This is a considerable advantage for homeowners who need to store their mower in tight spaces. The AMERISUN does not specifically mention a folding feature, so it may take up more room when stored. For users concerned about storage efficiency, the PowerSmart's design can be a significant deciding factor.
Pricing and Value
The AMERISUN is priced at $238.49, making it about 30% cheaper than the PowerSmart at $339.99. While the AMERISUN is less expensive, it's essential to consider what you get for the price. The PowerSmart's additional power, self-propelled feature, and ease of storage may justify the higher cost for some users. However, for those on a tighter budget or with smaller lawns, the AMERISUN may provide sufficient performance without the added expenses.
Which should you buy?
In conclusion, the choice between the AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower and the PowerSmart Self Propelled Gas Lawn Mower largely depends on your specific needs and budget. If you are looking for a more affordable option that provides solid performance for small to medium yards, the AMERISUN is an excellent choice. However, if you require a more powerful engine and features like a self-propelled system for easier handling on slopes and uneven ground, the PowerSmart may be worth the additional investment. Ultimately, assess your yard size, terrain, and personal preferences to make the best decision.

