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Greenworks 40V 16" Cordless Lawn Mower vs RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah

Updated July 2026 — Greenworks 40V 16" Cordless Lawn Mower wins on weight and runtime, RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah wins on storage space.

The Greenworks mower offers superior performance and features, making it ideal for larger lawns, while the RB mower is a budget-friendly option for small spaces.

Why Greenworks 40V 16" Cordless Lawn Mower is better

Performance

Gas-like performance with longer runtime.

Versatility

More cutting height options.

Maintenance

Zero maintenance required.

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

Price

More affordable option.

Weight

Lighter and more portable.

Storage

Compact storage design.

Overall score

Greenworks 40V 16" Cordless Lawn Mower
85
RB 9" Small Lawn Mower for Small Spaces, 40V 2Ah
75

Specifications

SpecGreenworks 40V 16" Cordless Lawn MowerRB 9" Small Lawn Mower for Small Spaces, 40V 2Ah
Power40V40V
Motor TypeBrushlessBrushless
Cutting Heights53
Eco-FriendlyYesYes
Warranty3 years1 year

Dimension comparison

Greenworks 40V 16" Cordless Lawn MowerRB 9" Small Lawn Mower for Small Spaces, 40V 2Ah

Overview of the Greenworks 40V 16" Cordless Lawn Mower and RB 9" Small Lawn Mower

The Greenworks 40V 16" Cordless Lawn Mower is a powerful and versatile option for homeowners, while the RB 9" Small Lawn Mower offers a compact solution for limited spaces. The Greenworks model is priced at $279.99, making it a more significant investment, whereas the RB mower is about 39% cheaper at $169.99. Each mower is designed for specific lawn care needs, appealing to different types of users.

Performance and Power

When it comes to performance, the Greenworks 40V 16" Cordless Lawn Mower offers gas-like performance without the hassle associated with traditional gas mowers. It utilizes a 40V 4.0Ah battery that provides a runtime of up to 40 minutes, allowing users to tackle small to medium lawns efficiently. In contrast, the RB 9" Small Lawn Mower is powered by a 40V 2Ah battery, making it suitable for lawns up to 540 square feet. Although the RB mower has a high-speed brushless motor for efficient mulching, its performance is best suited for smaller tasks given its limited battery capacity.

Design and Maneuverability

The Greenworks mower features an ultra-lightweight design that is 35% lighter than traditional models, improving maneuverability with its 16" cutting deck and ergonomic handles. This design allows for easy navigation around obstacles in your yard. On the other hand, the RB 9" Small Lawn Mower weighs only 11.5 lbs without the battery, making it extremely light and portable. Its one-hand steering and pivoting front wheels allow effortless maneuvering in tight spaces. However, its smaller cutting width may mean more passes for larger areas.

Cutting Options and Versatility

The Greenworks mower is equipped with a smart cut adjustment system featuring a single-lever, 5-position height control ranging from 1.25" to 3.375". This adaptability allows homeowners to customize their cutting height based on grass type and lawn conditions. In comparison, the RB 9" Small Lawn Mower offers three adjustable cutting heights from 1.2" to 2", providing adequate options but fewer than the Greenworks model. This limitation may affect the RB mower's versatility for varying grass types.

Maintenance and Sustainability

One of the standout features of the Greenworks mower is its zero maintenance requirement, eliminating gas and oil costs and engine tune-ups. This model promotes an eco-friendly approach to lawn care with whisper-quiet operation, ensuring minimal disturbance to neighbors. Conversely, the RB 9" Small Lawn Mower also boasts a maintenance-free brushless motor, making it a great choice for users prioritizing sustainability. However, it is less suited for larger yards, which limits its overall eco-friendly potential compared to the Greenworks mower.

Storage Solutions

The Greenworks mower is designed for convenience, including a grass bag and a compact 16" cutting deck that allows for easy storage. Its lightweight nature also contributes to efficient storage options. Meanwhile, the RB 9" Small Lawn Mower is engineered for compact spaces, featuring a detachable aluminum handle and an upright storage design that saves up to 70% of storage space. This makes it particularly appealing for those with limited storage options, such as apartment dwellers or homeowners with small garages.

Price Comparison

The Greenworks 40V 16" Cordless Lawn Mower is priced at $279.99, while the RB 9" Small Lawn Mower is significantly more affordable at $169.99. This price difference of about $110 makes the RB mower an attractive option for budget-conscious consumers. However, the higher price of the Greenworks mower reflects its enhanced features and capabilities, especially for users with larger lawns or those seeking a more robust lawn care solution.

Which should you buy?

Choosing between the Greenworks 40V 16" Cordless Lawn Mower and the RB 9" Small Lawn Mower ultimately depends on your specific lawn care needs. If you have a small to medium lawn and prioritize performance, battery life, and versatility, the Greenworks mower is worth the investment. Conversely, if you have a small yard and are looking for a lightweight, compact, and budget-friendly option, the RB mower is an excellent choice. Both mowers offer unique advantages, so consider your yard size, maintenance preferences, and storage capabilities before making a decision.