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AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc vs HEINPRO 14" Cordless Lawn Mower Compatible with

Updated July 2026 — AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc wins on engine size and weight, HEINPRO 14" Cordless Lawn Mower Compatible with wins on grass catcher.

The AMERISUN mower offers more power and versatility, while the HEINPRO is lightweight and budget-friendly.

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

Power

Gas engine provides consistent performance.

Cutting Width

21-inch cutting deck for larger areas.

Versatility

3-in-1 functionality for various lawn care needs.

Why HEINPRO 14" Cordless Lawn Mower Compatible with is better

Weight

Lightweight design at 17.8 lbs.

Storage

Foldable design for easy storage.

Price

More affordable at $169.99.

Overall score

AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144cc
85
HEINPRO 14" Cordless Lawn Mower Compatible with
70

Specifications

SpecAMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144ccHEINPRO 14" Cordless Lawn Mower Compatible with
Engine TypeGasElectric
Power SourceGasolineBattery
Height Range1.5-3.9 in1-2.6 in
MulchingYesYes
BaggingYesYes

Dimension comparison

AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower, 144ccHEINPRO 14" Cordless Lawn Mower Compatible with

Design and Build Quality

The AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower features a robust design with a durable 21-inch steel cutting deck, while the HEINPRO 14" Cordless Lawn Mower is lightweight and compact. The AMERISUN mower’s steel deck is built to withstand tough mowing conditions, making it ideal for small to medium-sized lawns. Weighing 68 lbs, it offers stability during operation. In contrast, the HEINPRO mower is designed for convenience with a weight of only 17.8 lbs, making it one of the lightest options available. Its foldable design enables easy storage, which is beneficial for users with limited space.

Engine and Power Source

When it comes to power, the AMERISUN mower is equipped with a 144cc 4-cycle OHV engine, delivering consistent performance for mowing tasks. This gas-powered engine allows for quick ignition with its easy pull-start system, ensuring that yard maintenance is efficient. On the other hand, the HEINPRO mower runs on a brushless electric motor compatible with Milwaukee M18 batteries. While it lacks an included battery, it provides up to 20 minutes of runtime on a fully charged battery, making it suitable for quick mow jobs. The difference in power source can significantly influence your mowing experience, depending on your preference for gas or electric.

Cutting Performance

The AMERISUN mower offers a 21-inch cutting width and features a 6-position height adjustment ranging from 1.5 to 3.9 inches, allowing for precise cutting across various grass types. This flexibility is especially useful for users looking to achieve a tailored lawn appearance. Meanwhile, the HEINPRO mower has a smaller 14-inch cutting deck and offers a 5-position height adjustment from 1 to 2.6 inches. While it is designed for smaller yards, the reduced width may require more passes to cover the same area, impacting efficiency for larger lawns.

Versatility in Lawn Care

The AMERISUN mower excels in versatility with its 3-in-1 functionality, allowing for mulching, bagging, and side discharge. This feature supports natural fertilization through mulching, while the included 1.4-bushel grass catcher minimizes the frequency of emptying. In contrast, the HEINPRO mower provides a 2-in-1 system, offering mulching and bagging options, but lacks the side discharge capability. This difference may affect users' preferences depending on how they intend to maintain their lawns and manage clippings.

Maneuverability and Ease of Use

Maneuverability is a strong suit for both mowers, although in different ways. The AMERISUN mower, with its 68 lbs weight, is designed for stability on varied terrain, thanks to its durable 7-inch front and 10-inch rear wheels. However, it may require more effort to push compared to the HEINPRO mower. The HEINPRO's ultralight design at 17.8 lbs makes it exceptionally easy to handle, particularly for users who prefer less strenuous operation. Its compact size and foldable design also enhance its ease of use and storage.

Pricing and Value

The AMERISUN mower is priced at $238.49, while the HEINPRO mower is more budget-friendly at $169.99, making it about 29% cheaper. Despite the price difference, the AMERISUN offers a more robust engine and greater cutting width, which may justify the higher cost for users with larger or more challenging lawns. The HEINPRO, however, presents a solid value for those with smaller yards who favor convenience and the benefits of cordless operation, especially if they already own compatible Milwaukee batteries.

Sales Performance and Popularity

In terms of sales rankings, the AMERISUN mower holds a bestseller rank of 8653, indicating a strong market presence and likely customer satisfaction. The HEINPRO mower, however, comes in at a lower rank of 24977, suggesting it may not be as widely adopted. This difference in sales performance could reflect varying consumer preferences for gas versus electric mowers, as well as the overall appeal of each model's features.

Which should you buy?

Choosing between the AMERISUN 21-Inch 3IN1 Gas Push Lawn Mower and the HEINPRO 14" Cordless Lawn Mower ultimately depends on your specific lawn care needs. If you require a powerful gas mower with versatile cutting options and a wider cutting path, the AMERISUN is the better choice despite its higher price. However, if you prefer a lightweight, easy-to-store electric mower for a smaller yard and already own Milwaukee batteries, the HEINPRO offers excellent value at a lower price. Consider your lawn size, mowing preferences, and budget to determine which mower suits you best.