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Greenworks 48V High - Performance Cordless Yard vs PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn

Updated July 2026 — Greenworks 48V High - Performance Cordless Yard wins on battery life and height adjust, PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn wins on noise level and weight.

The Greenworks 48V offers advanced features and eco-friendly operation, while the PowerSmart provides a budget-friendly gas option. Choose based on your specific needs.

Why Greenworks 48V High - Performance Cordless Yard is better

Performance

Electric motor offers gas-like power with zero emissions

Features

4-in-1 function for versatile grass management

User Experience

Push-button start for easy operation

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

Price

Significantly lower cost at $297.49

Fuel Efficiency

Longer operational time without recharging

Durability

Robust engine designed for tough mowing tasks

Overall score

Greenworks 48V High - Performance Cordless Yard
85
PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn
70

Specifications

SpecGreenworks 48V High - Performance Cordless YardPowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn
Power SourceElectricGas
Engine SizeN/A170cc
Self-PropelledYesYes
Cutting Modes4-in-13-in-1
Deck MaterialSteelSteel

Dimension comparison

Greenworks 48V High - Performance Cordless YardPowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn

Price Comparison

The Greenworks 48V is priced at $577.99, while the PowerSmart 21-Inch is significantly cheaper at $297.49, making it about 48% less expensive. This large price difference might appeal to budget-conscious consumers looking for a reliable lawn mower. However, the Greenworks model offers additional features that may justify its higher price for some users. With the PowerSmart, you get a solid gas-powered mower, but the Greenworks provides a more advanced electric option, which could be worth the investment depending on your yard care needs.

Performance and Power

In terms of power, the Greenworks 48V utilizes a brushless motor to deliver gas-like performance with reduced noise and zero emissions. It can climb inclines up to 21 degrees, making it suitable for various terrains. In contrast, the PowerSmart is powered by a 170cc OHV engine, known for its smooth operation and durability. While the PowerSmart engine is designed for tough mowing tasks, the electric motor of the Greenworks may provide a more efficient and quieter mowing experience, appealing to those who prioritize environmental considerations.

Cutting Efficiency

The Greenworks 48V features a 21-inch cutting width and a 4-in-1 function, allowing for rear bagging, mulching, side discharge, and a turbo mode. This versatility makes it suitable for different mowing needs and conditions. The PowerSmart also boasts a 21-inch cutting width, along with a 3-in-1 function that includes bagging, mulching, and rear discharge. Both mowers are designed for medium to large yards, but the Greenworks offers more options for grass management, enhancing its overall cutting efficiency.

Ease of Use

The Greenworks 48V is designed for user-friendliness, featuring a push-button start and self-propelled functionality. It also allows for vertical storage, which saves space, and has seven height adjustments for cutting. Meanwhile, the PowerSmart is self-propelled as well, with a rear-wheel drive that enhances maneuverability on uneven terrain. However, it requires a pull start, which some users may find less convenient compared to the Greenworks' push-button ignition. Overall, both mowers are easy to operate, but the Greenworks may appeal more to those seeking a hassle-free starting experience.

Battery Life vs. Fuel Efficiency

The Greenworks 48V comes with two 5.0Ah batteries and a 2.0Ah USB battery, allowing for up to 35 minutes of runtime on fully charged batteries. This runtime may vary based on grass conditions and operator technique. On the other hand, the PowerSmart, being gas-powered, will depend on fuel availability but typically offers longer operational time without the need for recharging. While the electric mower is quieter and more environmentally friendly, the gas mower might be the better option for those who want to mow for extended periods without worrying about battery life.

Durability and Build Quality

The Greenworks 48V features a durable steel deck that is designed for long-lasting use, while also being 3X quieter than gas mowers. Its build quality ensures it can handle tough mowing tasks. The PowerSmart also has a robust steel deck, which is essential for durability in varying mowing conditions. Both models are built to withstand regular use, but the Greenworks' electric operation might make it less susceptible to wear and tear compared to the mechanical parts of a gas engine over time.

Warranty and Support

Both the Greenworks and PowerSmart come with warranties that ensure long-term reliability. The Greenworks 48V offers a 3-year warranty on all tools and batteries, providing peace of mind for buyers. The PowerSmart also has a competitive warranty, though specific details on warranty length can vary. The Greenworks' compatibility with over 200 Greenworks 24V products adds to its value by allowing users to expand their tool collection without worrying about battery compatibility.

Which should you buy?

Choosing between the Greenworks 48V and the PowerSmart 21-Inch largely depends on your specific needs and preferences. If you prioritize a quieter, environmentally friendly option with advanced features, the Greenworks 48V is the better choice despite its higher price. However, if budget is a primary concern and you prefer a tried-and-true gas mower that can handle tough jobs, the PowerSmart is a solid option at about 48% less cost. Ultimately, consider your yard size, terrain, and mowing habits to make the best decision for your lawn care needs.