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RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah vs STEELITE 21V 13-Inch Brushless Electric Lawn

Updated July 2026 — RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah wins on storage space, STEELITE 21V 13-Inch Brushless Electric Lawn wins on weight and deck size.

The RB 9" Small Lawn Mower excels in lightweight design and safety features, while the STEELITE offers better value and runtime. Choose based on your priorities.

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

Lightweight

RB mower weighs only 11.5 lbs.

Safety Features

RB has advanced safety design.

Maintenance

RB features zero maintenance motor.

Why STEELITE 21V 13-Inch Brushless Electric Lawn is better

Price

STEELITE is $30 cheaper.

Runtime

STEELITE offers up to 25 minutes of runtime.

Cutting Height

STEELITE has 5-level height adjustment.

Overall score

RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah
75
STEELITE 21V 13-Inch Brushless Electric Lawn
80

Specifications

SpecRB 9" Small Lawn Mower for Small Spaces, 40V 2AhSTEELITE 21V 13-Inch Brushless Electric Lawn
Motor Speed6000 RPMN/A
Cutting Heights35
RuntimeN/A25 min
MulchingNoYes
Safety StopYesNo

Dimension comparison

RB 9" Small Lawn Mower for Small Spaces, 40V 2AhSTEELITE 21V 13-Inch Brushless Electric Lawn

Overview of the Lawn Mowers

When it comes to choosing a lawn mower, two strong contenders are the RB 9" Small Lawn Mower and the STEELITE 21V 13-Inch Brushless Electric Lawn Mower. The RB model is priced at $169.99, while the STEELITE comes in at a more budget-friendly $139.99, making it about 17% cheaper. Both mowers are designed for small yards, but they offer different features that cater to various user needs.

Design and Portability

In terms of design, the RB 9" Small Lawn Mower is ultra-light, weighing only 11.5 lbs without the battery. This makes it highly maneuverable, particularly in tight corners and small areas. It features a compact design that allows for easy one-handed steering and upright storage, saving up to 70% space. On the other hand, the STEELITE mower weighs 20.5 lbs and has a 13” deck. Although slightly heavier, it remains easy to lift and steer, making it suitable for small yards and slopes. Both designs prioritize portability, but the RB offers a more lightweight option.

Cutting Performance

The cutting performance of both mowers is impressive, yet they differ in their capabilities. The RB mower features a high-speed 6000 RPM brushless motor, perfect for fine mulching and designed for lawns up to 540 sq. ft. It offers three cutting heights ranging from 1.2" to 2". Conversely, the STEELITE mower has a powerful brushless motor that provides strong torque and quieter operation. It features a 5-level height adjustment, allowing users to customize cutting heights from 0.98" to 2.56". While both mowers perform well, the STEELITE offers more cutting height flexibility.

Battery Life and Runtime

Battery life is crucial for cordless mowers, and both models come with their respective batteries. The RB mower is powered by a 40V 2Ah battery, ideal for small lawns, but the runtime details aren't specified. In contrast, the STEELITE mower has a 21V 4.0Ah battery, providing up to 25 minutes of runtime. For those who need extended use, STEELITE offers a variant with a 50-minute runtime using two batteries. The RB mower does not provide specific runtime, making the STEELITE a more transparent option for users concerned about battery longevity.

Safety Features

Safety features are essential in lawn mowers, especially for beginners. The RB 9" Small Lawn Mower includes an advanced safety design that automatically stops if tilted beyond 20°–70°, ensuring compliance with US safety standards. The STEELITE mower doesn't specify similar safety features, but its lightweight construction and ease of maneuverability can contribute to safer operation. Users looking for advanced safety measures might find the RB mower more appealing in this regard.

Maintenance and Usability

Maintenance and usability are key aspects that differentiate these two mowers. The RB mower touts a zero-maintenance brushless motor, which means users won't have to worry about frequent upkeep. Additionally, it has a space-saving design with a detachable aluminum handle, making it ready to use right out of the box. The STEELITE mower also emphasizes usability with its 2-in-1 mulching and bagging design, which includes an easy-to-remove 8-gallon grass bag. However, it does not mention maintenance specifics. For those prioritizing minimal upkeep, the RB mower may stand out.

Price Comparison

The prices of these mowers reflect their differing features and capabilities. The RB 9" Small Lawn Mower is priced at $169.99, while the STEELITE 21V 13-Inch mower is available for $139.99, making it a more economical choice. The price difference of $30 may be significant for budget-conscious consumers. Despite the RB offering some premium features, the STEELITE's lower price point combined with its decent specifications might attract those looking for value without compromising on quality.

Which should you buy?

Ultimately, the choice between the RB 9" Small Lawn Mower and the STEELITE 21V 13-Inch Brushless Electric Lawn Mower hinges on individual needs and preferences. If you prioritize a lightweight design and advanced safety features, the RB mower may be the better option. However, if you're looking for a more affordable model with solid performance and greater cutting height flexibility, the STEELITE mower stands out as an excellent choice. Consider your lawn size, budget, and preferred features to make the best decision for your mowing needs.