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AMERISUN vs PowerSmart Self Propelled Gas Lawn Mower 21-inch

Updated July 2026 — AMERISUN wins on weight, PowerSmart Self Propelled Gas Lawn Mower 21-inch wins on sales rank and storage space.

The AMERISUN is a more affordable option with reliable performance, while the PowerSmart offers greater power and versatility. Choose based on your budget and feature preferences.

Why AMERISUN is better

Price

AMERISUN is $224.99, cheaper than PowerSmart at $339.99.

Weight

AMERISUN weighs 63 lbs, making it lighter than PowerSmart at 54 lbs.

Maneuverability

AMERISUN's lightweight design allows for easier handling.

Why PowerSmart Self Propelled Gas Lawn Mower 21-inch is better

Engine Power

PowerSmart has a 170cc engine compared to AMERISUN's 144cc.

Versatility

PowerSmart offers 3-in-1 functionality versus AMERISUN's 2-in-1.

Storage

PowerSmart saves 70% more storage space with its foldable design.

Overall score

AMERISUN
75
PowerSmart Self Propelled Gas Lawn Mower 21-inch
82

Specifications

SpecAMERISUNPowerSmart Self Propelled Gas Lawn Mower 21-inch
Engine Type144cc 4-Stroke OHV170cc 4-Cycle OHV
Mowing System2-in-13-in-1
Height Adjustment6-Position6-Position
Deck MaterialSteelSteel
Starting SystemRecoil StartRecoil Start

Dimension comparison

AMERISUNPowerSmart Self Propelled Gas Lawn Mower 21-inch

Overview of the AMERISUN and PowerSmart Lawn Mowers

The AMERISUN 21 Inch Gas Push Lawn Mower is priced at $224.99, while the PowerSmart Self Propelled Gas Lawn Mower costs $339.99, making the AMERISUN about 33% cheaper. Both mowers are designed for small to medium yards but cater to different user preferences with their features.

Engine Performance

The AMERISUN features a powerful 144cc 4-stroke OHV engine, providing reliable performance for cutting grass efficiently. In contrast, the PowerSmart is equipped with a more robust 170cc OHV 4-cycle engine, offering improved cutting efficiency and easier starting. This difference in engine size may appeal to users who prioritize power and performance over cost.

Cutting Width and Deck Design

Both mowers have a 21-inch cutting width, allowing for efficient mowing. However, the AMERISUN's steel deck is lightweight and designed for easy maneuverability, weighing 63 lbs. The PowerSmart, being self-propelled, weighs 54 lbs and features a rugged steel deck built for durability. This may make the PowerSmart a better choice for users who prefer a more robust build.

Mowing Versatility

The AMERISUN offers 2-in-1 functionality with mulching and side discharge options, while the PowerSmart provides a 3-in-1 system that includes mulching, side discharge, and rear bagging capabilities. This additional versatility in the PowerSmart may be appealing to homeowners looking for multiple ways to manage grass clippings.

Height Adjustment Features

Both mowers feature a height adjustment range from 1.5 to 3.9 inches, easily controlled via a single lever on the AMERISUN and a 6-position adjustment on the PowerSmart. This similarity ensures that users of both mowers can customize their mowing height effectively. However, the PowerSmart's multiple height settings may offer a more tailored experience for varying grass types.

Storage and Transport

The AMERISUN has a foldable design that contributes to its lightweight nature, making it easy to store and transport. Conversely, the PowerSmart also boasts a foldable design that saves 70% more storage space, making it convenient for users with limited storage options. Both mowers excel in this regard, but the PowerSmart's emphasis on compact storage might be particularly beneficial for urban homeowners.

Sales Ranking

The AMERISUN holds a sales rank of 8802, while the PowerSmart is slightly behind with a rank of 9309. This suggests that the AMERISUN may be a more popular choice among buyers, potentially indicating better customer satisfaction or value perception.

Which should you buy?

Choosing between the AMERISUN and the PowerSmart comes down to individual needs and preferences. The AMERISUN is a cost-effective option, offering reliable performance and lightweight design for approximately $224.99. On the other hand, the PowerSmart, priced at $339.99, provides additional power, versatility, and features suited for those who prioritize advanced options in lawn care. Ultimately, if budget is a primary concern, the AMERISUN is the better choice, while the PowerSmart may be worth the investment for users seeking a more powerful and versatile mower.