PowerSmart 21" 2-in-1 Push Lawn Mower, 144cc vs RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah
Updated July 2026 — PowerSmart 21" 2-in-1 Push Lawn Mower, 144cc wins on engine size and weight, RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah wins on mowing area and storage space.
The PowerSmart mower offers more power and versatility, while the RB mower excels in maneuverability and compactness.
Why PowerSmart 21" 2-in-1 Push Lawn Mower, 144cc is better
Power
PowerSmart has a 144cc engine compared to RB's brushless motor.
Cutting Options
PowerSmart offers 6 cutting heights versus RB's 3.
Versatility
PowerSmart supports both mulching and bagging.
Why RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah is better
Weight
RB weighs only 11.5 lbs compared to PowerSmart's 62 lbs.
Storage
RB allows for upright storage saving up to 70% space.
Ease of Use
RB features one-hand steering for better maneuverability.
Overall score
Specifications
| Spec | PowerSmart 21" 2-in-1 Push Lawn Mower, 144cc | RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah |
|---|---|---|
| Power | 144cc | 40V 2Ah |
| Cutting Heights | 6 | 3 |
| Weight | 62 lbs | 11.5 lbs |
| Mowing Type | 2-in-1 | Cordless |
| Safety Features | Start/Stop Lever | Auto Stop |
Dimension comparison
Overview of PowerSmart 21" 2-in-1 Push Lawn Mower
The PowerSmart 21" 2-in-1 Push Lawn Mower is designed for those seeking a powerful and efficient cutting experience. Priced at $279.99, it boasts a robust 144cc engine that provides reliable performance for maintaining your lawn. This mower stands out with features such as mulching and bagging capabilities, making it versatile for different mowing needs. Its lightweight design at 62 lbs ensures easy maneuverability, particularly in small yards or tight spaces, while offering a customizable cutting height with six positions.
Overview of RB 9" Small Lawn Mower for Small Spaces
The RB 9" Small Lawn Mower for Small Spaces is a budget-friendly option, priced at $169.99, making it about 17% cheaper than the PowerSmart mower. This ultra-light mini cordless mower is powered by a 40V 2Ah battery and features a brushless motor, ideal for small yards up to 540 square feet. Weighing only 11.5 lbs without the battery, it is designed for easy use, featuring one-hand steering and a compact storage solution that saves up to 70% space. The mower is equipped with three adjustable cutting heights, allowing for tailored grass maintenance.
Performance Comparison
In terms of performance, the PowerSmart mower is equipped with a more powerful 144cc engine, which allows for rigorous lawn care and efficient cutting, particularly in larger or thicker grass areas. The PowerSmart mower's 2-in-1 cutting design ensures it can either bag clippings or mulch them, enhancing lawn health. In contrast, the RB mower features a 6000 RPM brushless motor that excels in fine mulching but is limited to smaller areas and cutting heights. While both mowers perform well, the PowerSmart mower offers more versatility for varying lawn conditions.
Weight and Maneuverability
Weight plays a crucial role in how easily a lawn mower can be handled. The PowerSmart mower weighs 62 lbs, which is manageable for many users but may be cumbersome in very tight spaces. In contrast, the RB mower is significantly lighter at just 11.5 lbs, allowing for effortless maneuverability, especially in confined areas and around garden obstacles. The RB mower’s one-hand steering feature further enhances ease of use, making it an excellent choice for those who prioritize agility and convenience over power.
Cutting Height Adjustment
The PowerSmart mower offers a more extensive cutting height adjustment with six positions ranging from 1.5 inches to 3.9 inches. This flexibility allows users to achieve the desired lawn finish, whether they prefer a neatly trimmed appearance or a lush, green look. On the other hand, the RB mower provides three cutting heights from 1.2 inches to 2 inches. While adequate for small lawns, this limited range may not satisfy users looking for more customization in their lawn care routine.
Safety Features
Safety is an essential consideration when choosing a lawn mower. The PowerSmart mower includes a start/stop control lever that allows users to halt the mower quickly in case of emergencies, providing peace of mind during operation. The RB mower is designed with advanced safety features that automatically stop the motor if it tilts beyond 20° to 70°, which is crucial for preventing accidents, especially for beginners. Both mowers prioritize user safety, but the PowerSmart model offers more immediate control over the mowing process.
Storage Options
Storage capabilities differ significantly between the two models. The compact design of the RB mower allows for upright storage, saving up to 70% of space, making it ideal for those with limited storage options. Additionally, its detachable aluminum handle adds to its space-saving features. In contrast, while the PowerSmart mower can be stored away, it does not offer the same level of compactness and may require more room due to its size and weight.
Which should you buy?
Choosing between the PowerSmart 21" 2-in-1 Push Lawn Mower and the RB 9" Small Lawn Mower for Small Spaces largely depends on your specific lawn care needs. If you have a larger yard and require a more powerful mower with versatile cutting options, the PowerSmart mower’s robust engine and extensive features justify its higher price of $279.99. However, if you have a small lawn and prioritize maneuverability and ease of storage, the RB mower is a compelling choice at $169.99, offering excellent value for its design and functionality. Ultimately, consider the size of your lawn, storage space, and desired features to make the best choice for your mowing needs.