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AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with vs BLACK+DECKER Weed Eater, Lawn Edger and Cordless

Updated July 2026 — AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with wins on power and weight, BLACK+DECKER Weed Eater, Lawn Edger and Cordless wins on battery.

The AMERISUN mower offers more power and features, making it ideal for larger yards, while the BLACK+DECKER is a budget-friendly option for smaller spaces.

Why AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with is better

Power

AMERISUN has a 144cc engine compared to BLACK+DECKER's battery power.

Cutting Width

AMERISUN features a 21-inch cutting deck versus BLACK+DECKER's 12-inch.

Durability

AMERISUN's rust-resistant steel deck offers better longevity.

Why BLACK+DECKER Weed Eater, Lawn Edger and Cordless is better

Price

BLACK+DECKER is priced at $169, making it more affordable.

Weight

BLACK+DECKER is lighter and easier to maneuver.

Versatility

BLACK+DECKER's 3-in-1 functionality includes trimming and edging.

Overall score

AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower with
85
BLACK+DECKER Weed Eater, Lawn Edger and Cordless
75

Specifications

SpecAMERISUN 21-Inch 3IN1 Push Gas Lawn Mower withBLACK+DECKER Weed Eater, Lawn Edger and Cordless
Engine TypeGasBattery
Cutting Options3-in-13-in-1
Adjustable Height6 positionsAdjustable
Grass Catcher1.4 BushelNone
Warranty1 Year2 Years

Dimension comparison

AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower withBLACK+DECKER Weed Eater, Lawn Edger and Cordless

Overview of AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower

The AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower is designed for those who want a robust and powerful tool for lawn care. Priced at $238.49, this mower features a 144cc 4-stroke OHV engine that ensures strong cutting power and smooth performance. It’s specifically tailored for small to medium-sized yards, making it a solid choice for residential use. With its wide 21-inch rust-resistant steel deck, users can expect efficient mowing, while the versatile 3-in-1 functionality allows for mulching, bagging, or side discharge.

This lawn mower’s lightweight construction of 68 lbs makes it easy to maneuver across various terrains. Additionally, the six-position adjustable cutting height provides flexibility for tackling different grass lengths, ensuring a professional finish.

Overview of BLACK+DECKER Weed Eater

The BLACK+DECKER Weed Eater stands out with its 3-in-1 functionality and a price of $169.00. This compact lawn mower is perfect for users with smaller yards or challenging landscapes. The convertible design allows for quick transitions between a trimmer, edger, and mower, making it a versatile tool for various lawn tasks. It includes two 20V MAX lithium-ion batteries and features automatic feed spool technology, which enables continuous operation without interruptions for line adjustments.

Additionally, the adjustable height and pivoting handle ensure that users can customize their mowing experience for maximum control. With a bestseller rank of 13782, it’s clear that this product has found its place among consumers looking for reliable lawn care solutions.

Price Comparison

When comparing the prices of these two lawn care products, the difference is notable. The AMERISUN mower is priced at $238.49, while the BLACK+DECKER Weed Eater costs $169.00. This makes the BLACK+DECKER Weed Eater about 29% cheaper than the AMERISUN mower. For budget-conscious consumers, the lower price of the BLACK+DECKER model may be more appealing, especially for those who do not require the robust features of a gas mower.

However, the AMERISUN offers a more powerful engine and a larger cutting deck, which may justify the higher cost for users with larger yards or tougher grass conditions. Thus, the choice may depend on the user’s specific needs and budget.

Performance and Power

Performance-wise, the AMERISUN mower is equipped with a powerful 144cc 4-stroke engine, promising effective cutting and consistent power in various conditions. This mower is particularly beneficial for regular yard maintenance where durability and strength are essential. In contrast, the BLACK+DECKER Weed Eater’s PowerDrive technology helps prevent bogging in dense grass, ensuring efficient performance even in challenging areas.

While the AMERISUN mower excels in providing a traditional mowing experience with gas-powered reliability, the BLACK+DECKER model offers a different approach with its battery-powered operation that is advantageous for smaller or more intricate lawns. Ultimately, the choice between gas and battery power can significantly influence the mowing experience and efficiency.

Versatility and Functionality

The AMERISUN mower boasts a versatile 3-in-1 design, allowing users to mulch, bag, or side-discharge grass clippings. This feature is particularly useful for maintaining a tidy lawn according to personal preferences. Additionally, the six adjustable cutting height settings provide flexibility for various grass lengths, making it suitable for varied landscaping needs.

On the other hand, the BLACK+DECKER Weed Eater emphasizes its convertible design, allowing quick transformation between trimming, edging, and mowing. This level of versatility is ideal for those with smaller yards or unique landscaping challenges. The inclusion of two batteries ensures that users can continuously operate the mower without needing to recharge mid-task, which adds to its convenience.

Ease of Use and Maneuverability

In terms of ease of use, the AMERISUN mower is designed to be lightweight at 68 lbs, making it easy to navigate around the yard. Its foldable handle also allows for convenient storage in smaller spaces. The push design ensures that users have control over their mowing experience, although it may require more physical effort compared to a battery-operated model.

Conversely, the BLACK+DECKER Weed Eater is designed for maximum maneuverability in tight spaces, making it easier to handle slopes and hard-to-reach areas. The adjustable settings add further comfort, allowing users to customize the mower according to their height and the specific task at hand. This user-friendly approach makes it particularly appealing to homeowners looking for convenience.

Maintenance and Durability

Maintenance is a crucial factor when selecting a lawn mower. The AMERISUN mower, with its gas-powered engine, may require regular oil changes and engine maintenance to keep it running smoothly. However, its rust-resistant steel deck suggests durability against wear and tear from regular use.

In contrast, the BLACK+DECKER Weed Eater’s battery-powered design typically requires less maintenance overall, as there are no fuel-related issues to manage. The automatic feed spool technology also minimizes the hassle of line adjustments, allowing for uninterrupted mowing sessions. Each model has its strengths in this category, with the AMERISUN focusing on heavy-duty performance and the BLACK+DECKER offering convenience.

Which should you buy?

Choosing between the AMERISUN 21-Inch 3IN1 Push Gas Lawn Mower and the BLACK+DECKER Weed Eater ultimately depends on your specific needs and preferences. If you have a larger yard with tougher grass, the AMERISUN mower’s powerful engine and robust features may be worth the higher price of $238.49. However, if you are looking for a more budget-friendly option with versatility for small spaces, the BLACK+DECKER Weed Eater at $169.00 provides excellent value with its 3-in-1 functionality and ease of use.

Evaluate your lawn care requirements, budget, and personal preferences to make the best choice for your yard maintenance.