AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for vs HEINPRO 14" Cordless Lawn Mower Compatible with
Updated July 2026 — AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for wins on engine size and weight, HEINPRO 14" Cordless Lawn Mower Compatible with wins on runtime.
The AMRISUN mower excels in power and versatility, making it ideal for larger yards, while the HEINPRO offers a budget-friendly option for small spaces.
Why AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for is better
Power
AMRISUN has a powerful gas engine.
Cutting Width
AMRISUN features a 21-inch cutting deck.
Versatility
AMRISUN offers a 3-in-1 mowing function.
Why HEINPRO 14" Cordless Lawn Mower Compatible with is better
Price
HEINPRO is significantly cheaper.
Weight
HEINPRO is lightweight at 17.8 lbs.
Noise
HEINPRO operates quieter due to electric motor.
Overall score
Specifications
| Spec | AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for | HEINPRO 14" Cordless Lawn Mower Compatible with |
|---|---|---|
| Engine Type | Gas | Electric |
| Mowing Functions | 3-in-1 | 2-in-1 |
| Height Range | 1.5-3.9 in | 1-2.6 in |
| Sales Rank | 13987 | 24977 |
| Price | $314.10 | $169.99 |
Dimension comparison
Engine Power and Performance
The AMRISUN 21-Inch Self-Propelled Gas Lawn Mower boasts a powerful 170cc 4-stroke engine, while the HEINPRO 14" Cordless Lawn Mower operates on a battery system. The gas engine of the AMRISUN mower is designed for strong cutting performance, making it suitable for medium to large yards, whereas the HEINPRO mower, powered by a compatible Milwaukee M18 battery, is more suited for small yards. The AMRISUN's engine delivers easy starting and robust performance, reflecting its sales rank of 13,987, which indicates a strong market presence among gas mowers. In contrast, the HEINPRO's brushless motor offers efficient and quieter operation but provides around 20 minutes of runtime on a fully charged battery, which might limit its usability for larger tasks.
Cutting Width and Height Adjustment
When it comes to cutting width, the AMRISUN features a 21-inch deck compared to the 14-inch deck of the HEINPRO. This difference gives the AMRISUN a notable advantage in covering larger areas more quickly. Additionally, the AMRISUN offers a 6-position adjustable cutting height ranging from 1.5 inches to 3.9 inches, allowing for greater customization of lawn care. The HEINPRO, while having a smaller cutting width, still provides 5-position height adjustments from 1 inch to 2.6 inches. For those with larger properties, the AMRISUN's broader cutting path and more versatile height settings make it a better fit.
Versatility and Features
The AMRISUN offers a versatile 3-in-1 mowing function, allowing users to mulch, side discharge, or collect grass clippings in the rear bag, making it suitable for various landscaping needs. This feature is particularly beneficial for homeowners who prefer flexibility in lawn maintenance. On the other hand, the HEINPRO also supports a 2-in-1 mulching and bagging system, but its effectiveness is limited by the smaller cutting width and runtime on battery power. The AMRISUN's capabilities make it ideal for maintaining larger gardens, while the HEINPRO may be better suited for quick jobs in smaller yards.
Maneuverability and Design
The AMRISUN is designed with high wheels—10-inch rear and 7-inch front—making it easy to maneuver over uneven terrain and slopes. This feature enhances its usability in various yard conditions, especially for larger properties where navigating around obstacles is essential. The HEINPRO weighs only 17.8 lbs, making it one of the lightest push mowers available. Its lightweight design allows for effortless handling and storage, appealing to users with limited space. However, the trade-off is that it may not perform as effectively in more challenging terrains compared to the AMRISUN.
Price Comparison
In terms of pricing, the AMRISUN is currently priced at $314.10, while the HEINPRO is significantly cheaper at $169.99, making it about 46% less expensive. This price difference reflects the distinct target markets each mower serves. The AMRISUN is aimed at homeowners with larger yards who require a more robust machine, whereas the HEINPRO caters to those with smaller spaces looking for a more budget-friendly option. This substantial price gap may influence potential buyers, especially those on a tight budget.
Brand Reputation and Sales Rank
The AMRISUN ranks higher in the sales tier at 13,987, suggesting it has gained a solid reputation among consumers for its performance and reliability. The HEINPRO, with a lower sales rank of 24,977, may indicate it is less popular, possibly due to its niche appeal for smaller yards and reliance on battery power. Brand reputation plays a significant role in consumer trust, and the AMRISUN's stronger sales ranking reflects its acceptance in the market, particularly for gas-powered lawn mowers.
Environmental Impact and Maintenance
The HEINPRO, being a cordless electric mower, promises a quieter operation and reduced emissions, aligning with environmentally conscious consumers seeking to minimize their carbon footprint. However, it requires the purchase of a compatible Milwaukee M18 battery, which could add to the overall cost if users do not already own one. Conversely, while the AMRISUN may produce emissions typical of gas-powered engines, it offers robust performance without the dependency on battery life, leading to less frequent interruptions during mowing sessions. Ultimately, the choice between these two will depend on the user's values regarding environmental impact versus performance.
Which should you buy?
The decision between the AMRISUN 21-Inch Self-Propelled Gas Lawn Mower and the HEINPRO 14" Cordless Lawn Mower boils down to yard size and specific mowing needs. For those with larger lawns seeking powerful performance and versatility, the AMRISUN is the clear winner despite its higher price. Conversely, if budget constraints and smaller yard maintenance are priorities, the HEINPRO offers a lighter, more affordable alternative. Ultimately, your choice should align with your yard size, budget, and personal preferences in lawn care.

