AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for vs BLACK+DECKER Electric Lawn Mower, Weed Eater and
Updated July 2026 — AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for leads on engine size and weight.
The AMRISUN is ideal for larger yards with its powerful engine and versatility, while the BLACK+DECKER is a budget-friendly option for smaller lawns.
Why AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for is better
Power
AMRISUN has a 170cc gas engine compared to BLACK+DECKER's 6.5 amp motor.
Cutting Width
AMRISUN offers a 21-inch cutting width versus BLACK+DECKER's 12 inches.
Cutting Height
AMRISUN has a 6-position adjustable cutting height compared to BLACK+DECKER's fixed height.
Why BLACK+DECKER Electric Lawn Mower, Weed Eater and is better
Price
BLACK+DECKER is significantly cheaper at $74.92.
Weight
BLACK+DECKER is lightweight and easy to maneuver.
Maintenance
BLACK+DECKER requires less maintenance than gas mowers.
Overall score
Specifications
| Spec | AMERISUN AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for | BLACK+DECKER Electric Lawn Mower, Weed Eater and |
|---|---|---|
| Power Source | Gas | Electric |
| Mowing Functions | 3-in-1 | 3-in-1 |
| Self-Propelled | Yes | No |
| Warranty | 2 Years | 2 Years |
| Ease of Use | Moderate | Easy |
Dimension comparison
Overview of the AMRISUN and BLACK+DECKER Lawn Mowers
The AMRISUN 21-Inch Self-Propelled Gas Lawn Mower is designed for larger yards, while the BLACK+DECKER Electric Lawn Mower is ideal for smaller spaces. The AMRISUN is priced at $314.10, making it significantly more expensive than the BLACK+DECKER, which is currently available for $74.92—about 76% cheaper. Each mower serves different needs based on yard size and mowing preferences.
Power and Performance
Power is a significant differentiator between these two products. The AMRISUN features a powerful 170cc 4-stroke gas engine, delivering strong cutting performance ideal for medium to large yards. In contrast, the BLACK+DECKER relies on a 6.5 amp electric motor. While the gas mower offers superior power for tougher tasks, the electric mower is designed for precision in smaller lawns. The AMRISUN's engine contributes to a sales rank of 13,987, whereas the BLACK+DECKER ranks higher at 5,395, indicating a preference for its ease of use in compact settings.
Cutting Versatility
The AMRISUN offers a versatile 3-in-1 mowing function: mulch, side discharge, or collect grass in the rear bag. This flexibility is crucial for maintaining larger yards where different mowing strategies may be needed. The BLACK+DECKER also provides versatility, functioning as a mower, trimmer, and edger in one unit. However, its 12-inch cutting width is limited compared to the AMRISUN’s 21 inches, making it less effective for larger areas. Each mower excels in its intended application, but the AMRISUN offers a broader range of cutting options for bigger lawns.
Ease of Use and Maneuverability
When it comes to ease of use, the AMRISUN features a high-wheel self-propelled design, making it easier to maneuver over hills and uneven terrain. Its 10-inch rear and 7-inch front wheels provide excellent stability and control. Conversely, the BLACK+DECKER is lightweight and designed for comfort, with an adjustable handle for various user heights. While the AMRISUN is better suited for tackling rougher terrain, the BLACK+DECKER's lightweight design allows for effortless operation in smaller, flat lawns.
Cutting Height Adjustability
The AMRISUN allows for a 6-position adjustable cutting height ranging from 1.5 inches to 3.9 inches. This feature is essential for achieving a well-manicured lawn, enabling users to customize their cutting preferences. On the other hand, the BLACK+DECKER has a fixed cutting height of 1.6 inches, which may limit customization for users looking for different lawn heights. The AMRISUN's flexibility in cutting height is particularly beneficial for maintaining the health of grass across different seasons.
Storage and Maintenance
Storage and maintenance are key factors when comparing these two lawn mowers. The AMRISUN features a durable steel deck and a foldable handle, making it easy to store when not in use. Additionally, its 1.4-bushel grass catcher reduces trips to empty, enhancing efficiency during lawn care. The BLACK+DECKER's lightweight design also makes it easy to store, but it lacks the robust storage features of the AMRISUN. Maintenance for the electric mower is generally simpler, requiring less upkeep than gas engines, which need regular checks for fuel and oil.
Price Comparison
The AMRISUN is priced at $314.10, while the BLACK+DECKER comes in at $74.92. This price difference of about $239.18 means the BLACK+DECKER is approximately 76% cheaper than the AMRISUN. For budget-conscious consumers or those with smaller lawns, the BLACK+DECKER offers significant savings without sacrificing essential features. However, the AMRISUN justifies its higher price tag with its powerful engine and versatility designed for larger outdoor spaces.
Which should you buy?
Choosing between the AMRISUN and BLACK+DECKER ultimately depends on your lawn care needs. If you have a larger yard and require a powerful mower that can handle various terrains, the AMRISUN is the superior choice despite its higher price. Conversely, if you have a smaller lawn and need a budget-friendly, versatile solution for mowing, trimming, and edging, the BLACK+DECKER is an excellent option. Each mower excels in its category, making your specific lawn requirements the deciding factor in your purchase.

