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Greenworks 80V 21" Self-Propelled Cordless Lawn vs PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn

Updated July 2026 — Greenworks 80V 21" Self-Propelled Cordless Lawn leads on battery and maintenance.

The Greenworks mower offers advanced features and lower maintenance, while the PowerSmart provides reliable performance at a lower price.

Why Greenworks 80V 21" Self-Propelled Cordless Lawn is better

Power

Greenworks has a brushless motor generating 30% more torque.

Maintenance

Greenworks requires less upkeep than gas mowers.

Features

Greenworks offers a 4-in-1 cutting system.

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

Price

PowerSmart is significantly cheaper.

Engine

PowerSmart has a reliable 170cc OHV engine.

Cutting Width

Both have a 21-inch cutting width, but PowerSmart is gas-powered.

Overall score

Greenworks 80V 21" Self-Propelled Cordless Lawn
85
PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn
70

Specifications

SpecGreenworks 80V 21" Self-Propelled Cordless LawnPowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn
Motor TypeBrushlessOHV
Cutting System4-in-13-in-1
Drive TypeSelf-PropelledSelf-Propelled
HeadlightsYesNo
Height AdjustmentVariable6 Positions

Dimension comparison

Greenworks 80V 21" Self-Propelled Cordless LawnPowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn

Overview of the Lawn Mowers

When comparing the Greenworks 80V 21" Self-Propelled Cordless Lawn Mower and the PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower, it's clear that each offers unique advantages. The Greenworks model is a premium, battery-powered option priced at $479.99, while the PowerSmart is a more budget-friendly gas mower available for $297.49. This nearly $182.50 price difference means that consumers may need to consider their specific needs and lawn care preferences before making a choice.

Power and Performance

In terms of power, the Greenworks mower boasts an efficient brushless motor that generates 30% more torque than standard models, allowing it to tackle tough grass with ease. Its self-propelled design, combined with rear-wheel drive, enhances maneuverability and traction. On the other hand, the PowerSmart mower features a reliable 170cc OHV engine, known for its smooth start-up and consistent performance. This engine is ideal for challenging mowing tasks. While the Greenworks focuses on quiet, electric efficiency, the PowerSmart delivers traditional gas-powered strength.

Cutting Capabilities

Both mowers are designed with a 21-inch cutting width, making them suitable for medium to large yards. The Greenworks model offers a versatile 4-in-1 system that includes mulching, bagging, side discharge, and turbo leaf pickup. This adaptability allows users to choose how they want to handle clippings based on their lawn care needs. Conversely, the PowerSmart mower provides a 3-in-1 function that includes bagging, mulching, and rear discharge. While both mowers deliver effective cutting solutions, the Greenworks mower's additional options may appeal to those seeking more versatility.

Ease of Use

The Greenworks mower is designed with user convenience in mind. Its variable speed control allows for maximum maneuverability, making it easier to navigate complex lawns. Additionally, the inclusion of LED headlights provides visibility for early morning or late evening mowing sessions, enhancing user experience. In contrast, the PowerSmart mower features a straightforward single-lever height adjustment system, which allows users to quickly change the cutting height from 1.5 inches to 3.9 inches. While both mowers prioritize user-friendliness, the Greenworks model may offer more advanced features for those who value ease in their mowing routine.

Durability and Build Quality

Durability is a significant aspect of both models. The Greenworks mower features a durable steel deck and a brushless motor designed for longevity and quiet operation. Its construction is aimed at delivering dependable performance over time. On the other hand, the PowerSmart mower also boasts a robust steel deck, ensuring resilience during operation. Both mowers are built to withstand the rigors of lawn care, but the Greenworks may have the edge with its advanced motor technology aimed at extending the product's lifespan.

Maintenance and Upkeep

The Greenworks mower requires less maintenance than traditional gas mowers, as it operates without fuel, oil changes, or spark plugs. This feature can lead to significant time and cost savings over the long run. The PowerSmart mower, while effective, requires regular maintenance typical of gas-powered machines, including oil changes and fuel management. For users who prefer a low-maintenance option, the Greenworks mower presents a compelling case.

Price Comparison

The price difference is substantial, with the Greenworks mower priced at $479.99 and the PowerSmart mower at $297.49. This makes the PowerSmart about 38% cheaper, which can be a deciding factor for budget-conscious consumers. However, the Greenworks mower’s advanced features and performance may justify its higher price for those who prioritize efficiency and versatility in lawn care.

Which should you buy?

Deciding between the Greenworks 80V 21" Self-Propelled Cordless Lawn Mower and the PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower ultimately depends on your specific needs and preferences. If you are looking for a powerful, quiet, and low-maintenance option with advanced features, the Greenworks mower is likely the better choice, albeit at a higher price point. However, if you are budget-conscious and prefer a traditional gas mower that performs reliably for tough mowing jobs, the PowerSmart mower offers excellent value. Consider your lawn size, mowing habits, and maintenance willingness to make the best decision for your lawn care needs.