PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn vs Westinghouse 16" 15-Amp 2-in-1 Electric Dethatcher
Updated July 2026 — PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn wins on power and weight, Westinghouse 16" 15-Amp 2-in-1 Electric Dethatcher wins on rpm and collection bag.
The PowerSmart mower is ideal for larger yards with its robust features, while the Westinghouse dethatcher excels in lawn health maintenance. Choose based on your specific lawn care needs.
Why PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn is better
Cutting Width
21-inch cutting width for efficient mowing
Engine Power
170cc OHV engine for tough mowing jobs
Versatility
3-in-1 function for bagging, mulching, and discharging
Why Westinghouse 16" 15-Amp 2-in-1 Electric Dethatcher is better
Weight
Lighter at 29.5 pounds for easy maneuverability
Price
More affordable at $159.99
Electric Operation
Quieter operation with no gas required
Overall score
Specifications
| Spec | PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn | Westinghouse 16" 15-Amp 2-in-1 Electric Dethatcher |
|---|---|---|
| Engine Type | Gas | Electric |
| Cutting Heights | 6 | 5 |
| Drive Type | Self-Propelled | Push |
| Warranty | N/A | 2 years |
| Price | $297.49 | $159.99 |
Dimension comparison
Overview of PowerSmart and Westinghouse
The PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower is designed for those who need a robust machine for larger yards, while the Westinghouse 16" 15-Amp Electric Dethatcher and Scarifier offers a specialized solution for lawn health. Priced at $297.49, the PowerSmart mower is more expensive than the Westinghouse dethatcher, which retails at $159.99, making it about 17% cheaper. Each product serves distinct purposes, appealing to different types of lawn care needs.
Design and Build Quality
The build quality of both products reflects their intended uses. The PowerSmart mower features a durable steel deck, which is essential for handling the rigors of mowing larger lawns. Its 21-inch cutting width allows for efficient mowing, covering more ground in less time. In contrast, the Westinghouse dethatcher, while lighter at 29.5 pounds, is designed specifically for aeration and thatch removal with its 20 steel scarifying blades and 25 dethatching tines. This difference in design underscores the PowerSmart's emphasis on mowing capabilities versus the Westinghouse's focus on lawn revitalization.
Engine and Power Source
PowerSmart is powered by a reliable 170cc OHV engine, noted for its smooth start-up and consistent performance. This engine is ideal for tackling tough mowing jobs, especially in medium to large yards. On the other hand, the Westinghouse dethatcher operates with a powerful 15A electric motor, generating speeds up to 3500 RPM. While the PowerSmart mower requires gas, making it suitable for larger areas without the hassle of cords, the electric nature of the Westinghouse model means it's best for homeowners who prefer a lightweight, quieter solution for lawn care.
Cutting and Dethatching Performance
When it comes to performance, the PowerSmart mower excels with its 3-in-1 function: bagging, mulching, and rear discharge. This versatility allows users to switch between modes depending on their lawn care needs. Additionally, it offers six cutting height adjustments from 1.5 inches to 3.9 inches, accommodating varying grass lengths throughout the seasons. In comparison, the Westinghouse dethatcher boasts five adjustable height settings, allowing users to customize their raking depth from +1/4 inch to -1/2 inch. This feature is specifically designed to improve lawn health by effectively removing thatch.
Ease of Use
The PowerSmart mower is equipped with self-propelling capabilities and large rear wheels, providing excellent traction and maneuverability on slopes or uneven terrains. This feature is particularly beneficial for users who may find pushing a traditional mower cumbersome. Conversely, the Westinghouse dethatcher is lightweight and includes a detachable 14.5-gallon thatch collection bag, making it easy to transport and store. Its foldable handle and quick-change knob further enhance user convenience, particularly for those who prioritize ease of operation.
Maintenance and Durability
In terms of maintenance, the PowerSmart mower's gas engine may require more upkeep compared to the electric Westinghouse dethatcher, which benefits from a simpler maintenance routine. The electric model has a two-year limited warranty, ensuring peace of mind for buyers, while the PowerSmart’s durability is largely attributed to its robust steel construction, which is built to withstand the demands of frequent mowing. Users will find that the longevity of both models will depend on their maintenance practices and the frequency of use.
Cost Efficiency
The PowerSmart mower, priced at $297.49, is a larger investment compared to the Westinghouse dethatcher, which is priced at $159.99. This price difference of about $137.50 reflects the PowerSmart's capabilities as a multifunctional mower suitable for larger yards, while the Westinghouse offers a more specialized, cost-effective solution for lawn care enthusiasts focused on dethatching. Over time, the choice may come down to the specific lawn care needs of the buyer and their budget.
Which should you buy?
Choosing between the PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower and the Westinghouse 16" 15-Amp Electric Dethatcher and Scarifier ultimately depends on your lawn care requirements. If you need a powerful mower for larger areas, the PowerSmart is an excellent choice thanks to its robust engine and versatile functionality. However, if your primary goal is to maintain lawn health through dethatching and aeration, the Westinghouse is a more affordable option that excels in this category. Consider your specific needs, yard size, and maintenance preferences to make the best decision.

