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AMERISUN vs PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn

Updated July 2026 — AMERISUN wins on sales rank, PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn wins on price and engine cc.

The AMERISUN is a budget-friendly option for small to medium yards, while the PowerSmart offers more power and versatility for larger lawns.

Why AMERISUN is better

Price

AMERISUN is $72.50 cheaper

Weight

AMERISUN is lighter at 63 lbs

Storage

AMERISUN has a foldable design for easy storage

Why PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn is better

Engine Power

PowerSmart has a more powerful 170cc engine

Versatility

PowerSmart offers 3-in-1 functionality

Maneuverability

PowerSmart is self-propelled for easier handling

Overall score

AMERISUN
75
PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn
85

Specifications

SpecAMERISUNPowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn
Engine Type4-Stroke OHVOHV
Cutting Modes2-in-13-in-1
Drive TypePushSelf-Propelled
Height Range1.5" - 3.9"1.5" - 3.9"
Deck MaterialSteelSteel

Dimension comparison

AMERISUNPowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn

Overview

When it comes to lawn care, choosing the right mower can greatly influence the efficiency and quality of your mowing experience. In this comparison, we will look at the AMERISUN 21 Inch Gas Push Lawn Mower and the PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower. The AMERISUN retails for $224.99, while the PowerSmart comes at a higher price of $297.49, making the AMERISUN about 24% cheaper.

Engine Performance

The AMERISUN features a 144cc 4-stroke OHV engine, providing reliable power for small to medium yards. Its consistent cutting performance is complemented by an easy recoil start, ensuring users can tackle their lawns without hassle. On the other hand, the PowerSmart boasts a more robust 170cc OHV engine, which is designed for tougher jobs and is known for its smooth start-up and long-term durability. This additional power may be beneficial for larger or more challenging terrains.

Cutting Width and Efficiency

Both mowers come equipped with a 21-inch cutting width, which helps reduce mowing time significantly. This feature is particularly advantageous for homeowners with medium to large yards. However, while the AMERISUN focuses on mulching and side discharge options, the PowerSmart offers a more versatile 3-in-1 function that includes bagging, mulching, and rear discharge. This flexibility allows the PowerSmart to handle various lawn care needs effectively.

Height Adjustment Features

The AMERISUN offers a 6-position height adjustment, allowing users to adjust the cutting height from 1.5" to 3.9". This adaptability caters to different grass types and lawn conditions. The PowerSmart also features a 6-position height adjustment with the same cutting range, ensuring that both mowers can be easily tailored to suit specific lawn requirements. The ease of height adjustment in both models makes them user-friendly for homeowners.

Weight and Storage

The AMERISUN is a lightweight option, weighing only 63 lbs. This feature makes it easier to maneuver and store, especially with its foldable design. In contrast, the PowerSmart does not specify its weight, but the self-propelled nature and rear-wheel drive may add to its overall heft. The AMERISUN's compact storage capability is particularly useful for those with limited garage space.

Maneuverability

Maneuverability is a key factor in lawn maintenance, especially on uneven terrain. The AMERISUN is a push mower, which requires more physical effort, while the PowerSmart is a self-propelled model. The self-propelled feature, combined with large 10-inch rear wheels, provides excellent traction and maneuverability, making it easier to navigate slopes and tough spots. This significant difference in operation may influence buyers depending on their physical capability and lawn layout.

Sales Rank and Popularity

The AMERISUN holds a sales rank of 8802, while the PowerSmart has a better rank at 7264, indicating a higher level of popularity. This difference in sales rank may reflect the PowerSmart’s advanced features, such as its self-propelling capability and enhanced engine performance, appealing to a broader range of consumers.

Price Comparison

The AMERISUN is priced at $224.99, making it a more economical choice for budget-conscious buyers. In contrast, the PowerSmart is priced at $297.49, which is about $72.50 more expensive. While the PowerSmart offers additional features like self-propulsion and a more powerful engine, the price difference may lead some consumers to prefer the AMERISUN for its value.

Which should you buy?

Choosing between the AMERISUN 21 Inch Gas Push Lawn Mower and the PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower ultimately depends on your specific needs and lawn conditions. If you're looking for a lightweight, budget-friendly mower suitable for small to medium yards, the AMERISUN is an excellent choice at $224.99. However, if you require a more powerful, versatile mower capable of handling larger lawns and varying terrains, the PowerSmart at $297.49 would be the better investment.