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Greenworks 80V 21" Self-Propelled Cordless Lawn vs Sun Joe Corded Electric Dethatcher & Scarifier

Updated July 2026 — Greenworks 80V 21" Self-Propelled Cordless Lawn wins on power and battery life, Sun Joe Corded Electric Dethatcher & Scarifier wins on collection bag.

The Greenworks mower offers superior performance and versatility, making it ideal for larger lawns, while the Sun Joe provides a budget-friendly option for basic lawn care.

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

Power

Brushless motor provides 30% more torque.

Versatility

4-in-1 cutting system for various lawn care needs.

Battery

Cordless operation enhances mobility.

Why Sun Joe Corded Electric Dethatcher & Scarifier is better

Price

Significantly cheaper at $139.99.

Weight

Lightweight design for easy storage.

Simplicity

Straightforward operation for basic tasks.

Overall score

Greenworks 80V 21" Self-Propelled Cordless Lawn
85
Sun Joe Corded Electric Dethatcher & Scarifier
65

Specifications

SpecGreenworks 80V 21" Self-Propelled Cordless LawnSun Joe Corded Electric Dethatcher & Scarifier
Motor TypeBrushless12-Amp
Self-PropelledYesNo
Cutting System4-in-1Dethatcher
Price$479.99$139.99
Warranty3 Years2 Years

Dimension comparison

Greenworks 80V 21" Self-Propelled Cordless LawnSun Joe Corded Electric Dethatcher & Scarifier

Overview of the Products

The Greenworks 80V 21" Self-Propelled Cordless Lawn Mower is a powerful option for homeowners seeking efficiency and convenience. In contrast, the Sun Joe Corded Electric Dethatcher & Scarifier offers a more budget-friendly solution for lawn maintenance. With the Greenworks priced at $479.99 and the Sun Joe at $139.99, the latter is about 71% cheaper, making it a compelling choice for budget-conscious consumers.

Performance Comparison

The Greenworks mower features a high-performance brushless motor that provides 30% more torque than standard motors, allowing it to tackle tough grass and uneven terrain effectively. In comparison, the Sun Joe's 12-amp motor covers a 12.6-inch-wide path, which is adequate for regular lawn care but may not match the overall power and efficiency of the Greenworks. The Greenworks mower's ability to handle up to 1/2 acre on a single charge offers significant advantages for larger lawns.

Cutting Efficiency

When it comes to cutting efficiency, the Greenworks mower excels with its 4-in-1 system that includes options to mulch, bag, side discharge, and turbo leaf pickup. This versatility allows users to adapt their mowing style based on lawn conditions. While the Sun Joe primarily focuses on dethatching and scarifying, its customizable 5-position depth control allows users to tailor their lawn care approach. However, the Greenworks mower's broader capabilities make it a more versatile tool for comprehensive lawn maintenance.

Design and Usability

The design of the Greenworks mower is centered around user convenience, featuring a self-propelled mechanism with rear-wheel drive and variable speed control. This makes it easy to maneuver, especially on inclines or uneven surfaces. In contrast, the Sun Joe is designed for straightforward operation as a dethatcher, featuring an 8-gallon detachable collection bag for easy cleanup. While the Sun Joe's design is user-friendly, it lacks the advanced mobility features found in the Greenworks mower.

Portability and Storage

The portability of these two products differs significantly. The Greenworks mower operates on an 80V battery, offering the freedom of cordless operation, which enhances mobility across larger areas without the hassle of cords. The Sun Joe, being corded, requires proximity to an electrical outlet, which can limit its range during use. However, the Sun Joe's lightweight design makes it easy to store when not in use, especially for those with limited storage space.

Maintenance and Longevity

Greenworks stands out with its brushless motor, which is designed for longer life and quieter operation compared to traditional gas-powered mowers. This motor is less likely to require frequent maintenance, making it a long-term investment. In contrast, the Sun Joe's design may require more regular upkeep, particularly the maintenance of its motor and tines. The Greenworks mower also benefits from compatibility with over 75 other 80V tools, potentially reducing costs for users who invest in multiple Greenworks products.

Price and Value

The Greenworks mower is priced at $479.99, offering advanced features and capabilities that justify its higher cost for serious gardeners or those with larger lawns. Meanwhile, the Sun Joe’s price of $139.99 positions it as an attractive choice for casual users or those with smaller properties. This price difference of about $340 highlights the Sun Joe's appeal as a value-oriented option, especially for customers seeking essential lawn care without a hefty investment.

Which should you buy?

Choosing between the Greenworks 80V 21" Self-Propelled Cordless Lawn Mower and the Sun Joe Corded Electric Dethatcher & Scarifier ultimately depends on your lawn care needs and budget. If you require a powerful, versatile mower for larger spaces and are willing to invest in premium features, the Greenworks mower is the clear winner. On the other hand, if you are looking for an economically friendly solution for basic lawn maintenance or dethatching, the Sun Joe is an excellent, budget-conscious choice.