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Greenworks 80V 21" Self-Propelled Cordless Lawn vs Sun Joe 15-Inch Electric Powered Lawn Dethatcher

Updated July 2026 — Greenworks 80V 21" Self-Propelled Cordless Lawn wins on power and maneuverability, Sun Joe 15-Inch Electric Powered Lawn Dethatcher wins on price and weight.

The Greenworks mower excels in performance and versatility, making it a superior choice for mowing, while the Sun Joe dethatcher is a budget-friendly option for lawn maintenance.

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

Performance

Brushless motor provides more torque and efficiency.

Versatility

4-in-1 cutting system allows for multiple mowing options.

Convenience

Self-propelled feature enhances maneuverability.

Why Sun Joe 15-Inch Electric Powered Lawn Dethatcher is better

Price

More affordable option for budget-conscious buyers.

Specialization

Focuses on lawn health through dethatching.

Weight

Lighter and easier to handle for small tasks.

Overall score

Greenworks 80V 21" Self-Propelled Cordless Lawn
85
Sun Joe 15-Inch Electric Powered Lawn Dethatcher
70

Specifications

SpecGreenworks 80V 21" Self-Propelled Cordless LawnSun Joe 15-Inch Electric Powered Lawn Dethatcher
Motor TypeBrushless13-Amp
Cutting Width21 inches15 inches
Battery Type4.0AhCorded
Collection BagYesYes
Self-PropelledYesNo

Dimension comparison

Greenworks 80V 21" Self-Propelled Cordless LawnSun Joe 15-Inch Electric Powered Lawn Dethatcher

Overview of the Greenworks 80V Self-Propelled Mower

The Greenworks 80V 21" Self-Propelled Cordless Lawn Mower is a powerful tool designed for homeowners who prioritize performance without the drawbacks of gas mowers. Priced at $479.99, it features a brushless motor that generates 30% more torque compared to standard models, allowing it to handle tough grass and uneven terrain effectively. This mower is self-propelled, which provides additional convenience and control during operation. With its ability to cut up to 1/2 acre on a fully charged 4.0Ah battery, it stands out in the cordless mower category.

Overview of the Sun Joe Dethatcher

In contrast, the Sun Joe 15-Inch Electric Powered Lawn Dethatcher is a specialized tool priced at $169.99, focusing on lawn health rather than mowing. It features a powerful 13-amp motor designed to remove thatch, aerate the soil, and promote healthier grass growth. This dethatcher comes with a spacious collection bag that simplifies debris disposal, making lawn maintenance more efficient. It's an ideal choice for homeowners looking to revitalize their lawns by removing excess thatch and improving aeration.

Performance Comparison

The performance of the Greenworks mower excels in terms of cutting power and efficiency. Its brushless motor allows for quiet operation while delivering more torque, making it suitable for tackling stubborn weeds and overgrown lawns. Conversely, the Sun Joe dethatcher, while not a mower, focuses on lawn maintenance by effectively removing thatch and aerating the soil. The customizable depth control on the Sun Joe allows users to tailor their approach based on lawn conditions, providing flexibility in maintenance. While the Greenworks mower operates on battery power, the Sun Joe is corded, meaning it requires a power outlet, which can limit mobility.

Usability and Convenience

Usability is a strong point for both products but in different contexts. The Greenworks mower offers self-propulsion and variable speed control, enhancing maneuverability and making it easier to navigate complex yard layouts. Additionally, its LED headlights allow for early morning or late evening mowing, making it a versatile tool for various schedules. On the other hand, the Sun Joe dethatcher features four durable wheels designed for effortless maneuverability across lawns, reducing fatigue during use. However, the need for a power cord may hinder its convenience in larger yards.

Maintenance and Care

When it comes to maintenance, the Greenworks mower includes a 4-in-1 cutting system, allowing users to mulch, bag, side discharge, or turbo leaf pickup. This versatility means that users can adapt their mowing strategy based on seasonal needs. The brushless motor also typically requires less maintenance than traditional gas engines, contributing to its long-term reliability. In comparison, the Sun Joe dethatcher features a removable collection bag that makes it easy to dispose of collected thatch and debris, ensuring a cleaner lawn. However, the need for regular checks on the motor and scarifier blade may require more frequent attention.

Cost Consideration

The Greenworks mower comes with a higher price tag of $479.99, which is about 182% more expensive than the Sun Joe dethatcher, priced at $169.99. This significant price difference reflects the Greenworks mower's advanced features and capabilities, including its cordless operation and brushless motor technology. However, for homeowners primarily concerned with lawn health rather than mowing, the Sun Joe presents a more budget-friendly option that still delivers effective results. It's essential to consider what you need for your lawn care routine when evaluating these costs.

Brand Reputation and Ranking

Both brands have established reputations in the lawn care industry. The Greenworks mower boasts a sales rank of 1880, indicating a strong presence and popularity among consumers, while the Sun Joe dethatcher has a slightly better sales rank of 2581. This suggests that both products are well-regarded, but the Greenworks mower is positioned as a higher-end option due to its features and capabilities. Each brand offers warranties, which can provide peace of mind for buyers, especially with the Greenworks mower's focus on durability and long-term investment.

Which should you buy?

The decision between the Greenworks 80V Self-Propelled Cordless Lawn Mower and the Sun Joe 15-Inch Electric Powered Lawn Dethatcher ultimately depends on your specific lawn care needs. If you require a powerful, versatile mower that can handle larger lawns and varying grass conditions, the Greenworks mower is an excellent choice, despite its higher price point. However, if you're primarily looking to maintain lawn health by removing thatch and aerating the soil, the Sun Joe dethatcher offers a cost-effective solution. Each product excels in its category, making it crucial to align your choice with your lawn care priorities.