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AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc vs BLACK+DECKER 20-Inch Corded Electric Lawn Mower

Updated July 2026 — AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc wins on power and weight, BLACK+DECKER 20-Inch Corded Electric Lawn Mower wins on bag capacity and height settings.

The AMERISUN mower offers better power and value, while the BLACK+DECKER provides convenience and eco-friendliness.

Why AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc is better

Price

AMERISUN is $238.49, cheaper than BLACK+DECKER at $259.00.

Power

AMERISUN has a 144cc gas engine, providing more power.

Cutting Width

AMERISUN features a 21-inch cutting deck, larger than BLACK+DECKER's 20-inch.

Why BLACK+DECKER 20-Inch Corded Electric Lawn Mower is better

Weight

BLACK+DECKER is lighter and easier to maneuver.

Maintenance

BLACK+DECKER requires less maintenance due to being electric.

Noise

BLACK+DECKER operates more quietly than the gas mower.

Overall score

AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc
85
BLACK+DECKER 20-Inch Corded Electric Lawn Mower
75

Specifications

SpecAMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144ccBLACK+DECKER 20-Inch Corded Electric Lawn Mower
Engine TypeGasElectric
Cutting Modes3-in-13-in-1
Start MechanismPull StartElectric Start
WarrantyN/A2 Years
ManeuverabilityGoodExcellent

Dimension comparison

AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144ccBLACK+DECKER 20-Inch Corded Electric Lawn Mower

Overview of the AMERISUN 21-Inch Gas Push Lawn Mower

The AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower is a robust option for those with small to medium-sized yards, featuring a competitive price of $238.49. Powered by a 144cc 4-cycle OHV engine, this mower promises reliable performance and easy pull-start operation. With a sales rank of 8,653, it showcases significant popularity among users seeking efficient lawn care solutions.

This mower's 21-inch cutting deck allows for efficient coverage, while its 3-in-1 capabilities—mulching, bagging, and side discharge—offer versatility for various mowing needs. The adjustable height settings further enhance its usability, providing options for different grass types and conditions. Overall, the AMERISUN mower is designed for ease of maneuverability and durability, making it a solid contender in the lawn mower market.

Overview of the BLACK+DECKER 20-Inch Corded Electric Lawn Mower

The BLACK+DECKER 20-Inch Corded Electric Lawn Mower presents a slightly higher price of $259.00 but offers considerable power from its 13 Amp motor. While its sales rank of 31,868 indicates it is less popular than the AMERISUN model, it still serves as a reliable choice for those who prefer electric mowing solutions.

This mower features a 20-inch cutting deck, which is slightly smaller than AMERISUN's, but it compensates with a unique EdgeMax deck design that allows for closer cutting along edges. The 3-in-1 functionality for mulching, bagging, and side discharge provides flexibility, while the tool-free height adjustment with seven settings offers users a wide range of cutting heights from 1.5 inches to 4 inches. The BLACK+DECKER mower is particularly well-suited for those who prioritize ease of use and eco-friendliness.

Engine Performance and Power Source

The AMERISUN mower is powered by a gas engine, specifically a reliable 144cc 4-cycle OHV engine, which ensures consistent cutting performance. This engine type is favored for its reliability and ability to handle tougher mowing tasks, particularly in thick grass. The gas mower's performance is ideal for users who need power and efficient operation over larger areas.

In contrast, the BLACK+DECKER mower operates on a corded electric system with a 13 Amp motor. While it may not match the raw power of a gas engine, it provides adequate strength for most residential lawns, making it suitable for users who prefer a quieter, more environmentally friendly option. The electric mower requires less maintenance and is easier to start, as it eliminates the need for gas and oil.

Cutting Deck and Versatility

The AMERISUN lawn mower features a robust 21-inch steel cutting deck, enabling it to cover more ground in a single pass, which can save time during mowing sessions. Its 3-in-1 functionality allows users to mulch, bag, or side discharge clippings, catering to various lawn care preferences. This versatility is ideal for homeowners looking to maintain their lawns with multiple options for grass disposal.

On the other hand, the BLACK+DECKER mower has a slightly smaller 20-inch deck but boasts an innovative EdgeMax design that enables it to cut closely to edges and borders. This feature reduces the need for additional trimming after mowing, enhancing its overall efficiency. Like the AMERISUN, it also offers 3-in-1 capabilities, making it adaptable to different mowing scenarios.

Height Adjustment Mechanism

The AMERISUN mower provides six height adjustment settings ranging from 1.5 inches to 3.9 inches, allowing users to customize their mowing height based on grass conditions and seasons. This feature is particularly beneficial for those who want to achieve a precise cut or manage overgrown areas effectively.

In contrast, the BLACK+DECKER mower offers a single lever for height adjustments with seven settings, ranging from 1.5 inches to 4 inches. This slightly broader range offers users a bit more flexibility in achieving the desired cut height. The tool-free adjustment mechanism adds to its convenience, making it user-friendly for quick changes during mowing.

Maneuverability and Weight

The AMERISUN mower weighs 68 lbs, which is manageable for most users and aids in maneuverability. Its durable wheels, combined with a design that facilitates easy control around obstacles, position it well for residential lawn maintenance. The foldable handle is an added convenience for storage, making it a practical choice for those with limited garage space.

The BLACK+DECKER mower is designed as an ultra-light push mower, emphasizing ease of use. While the exact weight is not specified, it is generally lighter due to its electric nature. The lightweight construction, combined with its corded design, makes it easy to handle, particularly for those who may struggle with heavier gas mowers.

Price Comparison and Value

The AMERISUN mower is priced at $238.49, making it approximately 8% cheaper than the BLACK+DECKER mower, which retails for $259.00. This price difference may appeal to budget-conscious consumers who still want a reliable gas mower for their lawn care needs. The AMERISUN's lower price point, coupled with its robust features, offers considerable value for those with small to medium yards.

However, the BLACK+DECKER mower justifies its higher price with the advantages of electric power, including quieter operation and lower maintenance requirements. For users who prioritize these aspects, the investment may be worth it despite the higher upfront cost.

Which should you buy?

Choosing between the AMERISUN 21-Inch Gas Push Lawn Mower and the BLACK+DECKER 20-Inch Corded Electric Lawn Mower ultimately depends on individual needs and preferences. The AMERISUN model offers robust power and versatility at a lower price, making it an excellent choice for those with larger or more challenging yards. Conversely, the BLACK+DECKER mower provides a quieter, eco-friendly option with convenient features for easy use, appealing to those who prefer electric mowers. Each has its strengths, so consider your yard size, mowing preferences, and budget when making your decision.