PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn vs STEELITE 21V 13-Inch Brushless Electric Lawn
Updated July 2026 — PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn leads on price and power.
The PowerSmart mower is more powerful and efficient for larger lawns, while the STEELITE is a budget-friendly option for small yards.
Why PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn is better
Power
Gas engine provides better performance for larger areas.
Cutting Width
21-inch cutting width for efficiency.
Versatility
3-in-1 function for grass management.
Why STEELITE 21V 13-Inch Brushless Electric Lawn is better
Price
More affordable at $139.99.
Weight
Lightweight at 20.5 lbs for easy maneuverability.
Battery
Cordless operation for convenience.
Overall score
Specifications
| Spec | PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn | STEELITE 21V 13-Inch Brushless Electric Lawn |
|---|---|---|
| Engine Type | Gas | Electric |
| Cutting Heights | 1.5-3.9 in | 0.98-2.56 in |
| Grass Management | 3-in-1 | 2-in-1 |
| Maneuverability | Moderate | High |
| Battery Life | N/A | 25 min |
Dimension comparison
Price Comparison
The PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower is priced at $297.49, whereas the STEELITE 21V 13-Inch Brushless Electric Lawn Mower comes in at $139.99. This makes the STEELITE mower about 53% cheaper than the PowerSmart option. For those on a budget or with smaller lawns, the lower price point of the STEELITE mower is particularly appealing. However, the PowerSmart mower may justify its higher cost with its robust features and capabilities, especially for larger yards requiring more power and efficiency.
Engine and Power Source
The PowerSmart mower features a powerful 170cc OHV engine, providing a reliable and consistent performance ideal for tough mowing jobs. In contrast, the STEELITE mower is powered by a 21V 4.0Ah battery, offering a runtime of up to 25 minutes. This difference in power sources highlights a key distinction: the PowerSmart mower is better suited for medium to large yards due to its gas engine’s performance, while the STEELITE is designed for smaller lawns and lighter tasks. Users should consider their yard size and mowing needs when choosing between these power sources.
Cutting Width and Efficiency
The PowerSmart mower boasts a 21-inch cutting width, which allows for high efficiency and reduced mowing time, making it suitable for medium to large yards. On the other hand, the STEELITE mower has a compact 13-inch deck, making it lightweight and easy to maneuver, ideal for small spaces and tight corners. The significant difference in cutting width means that while the PowerSmart can tackle larger areas more quickly, the STEELITE excels in maneuverability and ease of use in confined areas.
Cutting Height Adjustment
In terms of cutting height adjustment, the PowerSmart mower offers a 6-position height adjustment ranging from 1.5 inches to 3.9 inches. This flexibility allows users to easily customize their lawn’s appearance based on grass length and seasonal needs. Meanwhile, the STEELITE mower features a 5-level height adjustment from 0.98 inches to 2.56 inches. While both mowers provide adjustable cutting heights, the PowerSmart’s wider range may cater better to varying lawn conditions, whereas the STEELITE is tailored for smaller, well-maintained lawns.
Weight and Maneuverability
The STEELITE mower weighs only 20.5 lbs, making it exceptionally lightweight and easy to maneuver, especially on slopes or uneven terrain. In contrast, while the weight of the PowerSmart mower is not specified, it is generally heavier due to its gas engine and larger size. The STEELITE's light weight can be particularly advantageous for users who may have difficulty handling heavier equipment or those who need to store their mower in small spaces.
Grass Management Features
The PowerSmart mower provides a versatile 3-in-1 function that allows users to choose between bagging, mulching, or rear discharge. This adaptability makes it easier to manage grass clippings according to personal preferences and lawn care routines. Conversely, the STEELITE mower also features a 2-in-1 design for mulching and bagging, with an 8-gallon grass bag for clean collection. While both mowers offer effective grass management options, the PowerSmart’s additional rear discharge feature may appeal to users looking for greater flexibility in their mowing process.
Runtime and Battery Life
The runtime of the STEELITE mower is limited to about 25 minutes on a full charge, which is adequate for smaller lawns. In contrast, the PowerSmart mower, being gas-powered, does not face the same limitations, allowing for extended use without the need for recharging. This makes the PowerSmart an excellent choice for larger properties where uninterrupted mowing is essential. Users should consider how long they typically need to mow their lawns when weighing the differences in runtime and battery life.
Which should you buy?
Ultimately, the choice between the PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower and the STEELITE 21V 13-Inch Brushless Electric Lawn Mower depends on individual needs and yard size. The PowerSmart mower, priced at $297.49 and with its powerful gas engine, is ideal for larger lawns needing efficiency and versatility, making it a solid investment for more extensive mowing tasks. In contrast, the STEELITE mower, at $139.99, serves best for small yards or users seeking a lightweight and easy-to-maneuver option. Therefore, consider yard size, power requirements, and budget to determine which mower aligns more closely with your mowing needs.

