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RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah vs Sun Joe 15-Inch Electric Powered Lawn Dethatcher

Updated July 2026 — RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah wins on storage space and power, Sun Joe 15-Inch Electric Powered Lawn Dethatcher wins on weight and cutting width.

The RB 9" Small Lawn Mower is ideal for small spaces and ease of use, while the Sun Joe excels in lawn revitalization. Choose based on your specific lawn care needs.

Why RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah is better

Maneuverability

Lightweight design allows for easy navigation in tight spaces.

Storage

Space-saving upright storage saves up to 70% space.

Safety Features

Automatic stop feature enhances user safety for beginners.

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

Power

13-amp motor effectively removes thatch and aerates lawn.

Collection Bag

Large bag simplifies debris collection.

Customization

5-position depth control for tailored lawn care.

Overall score

RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah
85
Sun Joe 15-Inch Electric Powered Lawn Dethatcher
78

Specifications

SpecRB 9" Small Lawn Mower for Small Spaces, 40V 2AhSun Joe 15-Inch Electric Powered Lawn Dethatcher
Motor TypeBrushlessCorded
Cutting Heights31
Collection BagNoYes
Safety FeaturesYesNo
MaintenanceLowModerate

Dimension comparison

RB 9" Small Lawn Mower for Small Spaces, 40V 2AhSun Joe 15-Inch Electric Powered Lawn Dethatcher

Overview of the RB 9" Small Lawn Mower

The RB 9" Small Lawn Mower is designed for compact spaces and small lawns, making it an ideal choice for urban dwellers or those with limited yard areas. Priced at $169.99, it features a powerful 40V battery and an efficient brushless motor, making it suitable for lawns up to 540 square feet. With its lightweight design at 11.5 pounds (without the battery), the mower is highly maneuverable, allowing users to navigate tight corners with ease. The RB mower also boasts three adjustable cutting heights, ensuring users can maintain their grass at the desired length effortlessly.

Overview of the Sun Joe 15-Inch Electric Powered Lawn Dethatcher

The Sun Joe 15-Inch Electric Powered Lawn Dethatcher is another strong contender in the lawn maintenance category, priced similarly at $169.99. This machine is equipped with a robust 13-amp motor, which excels at removing thatch and aerating the lawn, promoting healthier grass growth. Its large collection bag simplifies the process of collecting debris, making yard maintenance less cumbersome. Additionally, the Sun Joe features a customizable depth control with five positions, allowing users to tailor their dethatching experience based on their lawn's specific needs.

Performance Comparison

In terms of performance, the RB 9" Small Lawn Mower focuses on cutting grass efficiently with its high-speed 6000RPM brushless motor, ideal for maintaining small lawns. It is engineered to handle grass cutting with precision while being user-friendly for novices, thanks to its automatic safety features. Conversely, the Sun Joe dethatcher is built for a different purpose, targeting thatch removal and lawn aeration. With its powerful 13-amp motor, it can effectively revitalize lawns by removing dead grass and debris, making it a great choice for those looking to improve lawn health rather than just cutting grass.

Maneuverability and Ease of Use

The RB mower excels in maneuverability due to its lightweight design and one-hand steering capability, making it particularly user-friendly for individuals who may struggle with heavier equipment. Weighing only 11.5 pounds without the battery, it can easily navigate small spaces. On the other hand, while the Sun Joe dethatcher is designed with four easy-glide wheels for smooth movement, it is slightly bulkier. This could impact maneuverability in tighter spots, although its design does help reduce user fatigue during operation.

Storage and Portability

Storage is a significant consideration for small lawn care tools. The RB 9" Small Lawn Mower offers a space-saving design with an upright storage option that can save users up to 70% space. Its detachable aluminum handle further enhances portability, making it easy to store in small sheds or garages. The Sun Joe, while efficient in its function, does not emphasize compact storage in the same way, which may be a drawback for those with limited storage space in their homes.

User Safety Features

Safety is paramount in lawn care equipment, and both products incorporate features to enhance user safety. The RB mower automatically stops if tilted beyond specified angles, adhering to US safety standards, which provides peace of mind, especially for beginners. The Sun Joe also prioritizes user safety with its durable design and ease of maneuverability, although it does not highlight specific safety features as prominently as the RB mower. This could make the RB a more appealing option for novice users who may prioritize safety.

Maintenance Requirements

The RB 9" Small Lawn Mower is designed for low maintenance, thanks to its brushless motor, which requires no oil changes and minimal upkeep. This design significantly reduces the hassle for users, allowing them to focus on lawn care rather than equipment maintenance. In contrast, the Sun Joe dethatcher, while powerful, may require more attention in terms of maintenance, particularly concerning the collection bag and the motor. Users looking for a tool that minimizes maintenance needs may prefer the RB mower.

Which should you buy?

Choosing between the RB 9" Small Lawn Mower and the Sun Joe 15-Inch Electric Powered Lawn Dethatcher depends on your specific lawn care needs. If you have a small yard and require a lightweight, efficient mower that prioritizes ease of use and safety, the RB mower is an excellent option. However, if your focus is on revitalizing your lawn by removing thatch and aerating the grass, the Sun Joe dethatcher would serve you better. Both products are priced at $169.99, making them equally accessible, but their functionalities cater to different lawn maintenance tasks. Ultimately, your choice should align with what your lawn requires most.