Greenworks 80V 21" Self-Propelled Cordless Lawn vs Westinghouse 16" 15-Amp 2-in-1 Electric Dethatcher
Updated July 2026 — full head-to-head comparison.
Overview of the Products
When it comes to lawn maintenance, the Greenworks 80V 21" Self-Propelled Cordless Lawn Mower and the Westinghouse 16" 15-Amp 2-in-1 Electric Dethatcher and Scarifier serve vastly different purposes. The Greenworks mower is a powerful, self-propelled lawn mower designed for cutting large areas efficiently, while the Westinghouse dethatcher focuses on aerating and revitalizing existing lawns. With the Greenworks priced at $479.99 and the Westinghouse at $159.99, there's a significant price difference of approximately 64% between these two products.
Performance and Power
The Greenworks mower features a brushless motor that generates 30% more torque than standard models, providing exceptional cutting power. It can handle up to half an acre with a fully charged 4.0Ah battery, making it suitable for larger lawns. In contrast, the Westinghouse dethatcher is powered by a 15-amp electric motor that operates at speeds of up to 3500 RPM. While both machines deliver robust performance, the Greenworks mower is engineered for cutting grass efficiently, while the Westinghouse focuses on dethatching and aerating, with 20 steel scarifying blades designed to improve lawn health.
Cutting Capability
The Greenworks mower boasts a 21-inch cutting deck, which allows for a wider cutting path, making it ideal for larger lawns. This mower supports a 4-in-1 system, enabling users to mulch, bag, side discharge, and pick up leaves efficiently. On the other hand, the Westinghouse dethatcher has a narrower 16-inch clearing path but offers five adjustable height settings for customizable raking depth. This feature allows you to manage thatch effectively, but it doesn't provide the same cutting capability for grass as the Greenworks mower does.
Design and Usability
The design of the Greenworks mower focuses on user convenience, featuring a self-propelled mechanism with rear-wheel drive and variable speed control. This allows for easy maneuverability across uneven terrain. Additionally, the mower includes LED headlights for visibility during early morning or late evening mowing. The Westinghouse dethatcher, while lightweight at 29.5 pounds and easy to maneuver, lacks the self-propelled feature. However, it includes a detachable 14.5-gallon collection bag, making it easier to manage debris during dethatching.
Price Comparison
With the Greenworks priced at $479.99 and the Westinghouse at $159.99, the latter is about 67% cheaper. This substantial price gap reflects the differences in functionality and target use. The Greenworks mower is a professional-grade tool designed for extensive lawn care, while the Westinghouse dethatcher is more of a maintenance tool aimed at lawn health. For homeowners on a budget or those who need a tool specifically for thatching, the Westinghouse presents a more economical choice.
Warranty and Support
The Greenworks mower is backed by a best-in-class warranty and is compatible with over 75 tools in the 80V ecosystem, making it a long-term investment. This extensive compatibility allows users to share the same battery across various tools, adding value to the purchase. Conversely, the Westinghouse dethatcher comes with a two-year limited warranty and lifetime technical support, ensuring that buyers receive assistance if issues arise. While both products offer warranty support, the Greenworks mower’s compatibility with a broader range of tools enhances its long-term appeal.
Brand Reputation and Sales Ranking
In terms of popularity, the Greenworks mower has a sales rank of 1,880, indicating it is a well-regarded choice among consumers. This level of acceptance often translates into trust in product quality and performance. The Westinghouse dethatcher, with a sales rank of 15,317, is less popular but still serves its niche effectively. The brand reputation of Greenworks as a leader in outdoor power equipment also contributes to its perceived value in the marketplace.
Which should you buy?
Choosing between the Greenworks 80V 21" Self-Propelled Cordless Lawn Mower and the Westinghouse 16" 15-Amp Electric Dethatcher and Scarifier ultimately comes down to your specific lawn care needs. If you require a robust, self-propelled mower for maintaining a larger yard, the Greenworks mower, despite its higher price, offers superior performance and versatility. Conversely, if your primary goal is to address thatch and improve lawn health without the need for extensive grass cutting, the Westinghouse dethatcher is a more budget-friendly option that still delivers effective results.

