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PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn vs WORX Nitro 21" Cordless Lawn Mower, Electric Mower

Updated July 2026 — PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn wins on weight, WORX Nitro 21" Cordless Lawn Mower, Electric Mower wins on runtime and speed.

The WORX Nitro offers advanced features and electric convenience, while the PowerSmart provides reliable gas performance at a lower price.

Why PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn is better

Price

PowerSmart is $62.50 cheaper than WORX Nitro.

Engine Type

Gas engine is more reliable for tough conditions.

Cutting Heights

PowerSmart has 6 height adjustments.

Why WORX Nitro 21" Cordless Lawn Mower, Electric Mower is better

Technology

WORX features Aerodeck and Intellicut for better efficiency.

Power

Brushless motor provides 40% more power.

Storage

WORX has a collapsible handle for easy storage.

Overall score

PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn
75
WORX Nitro 21" Cordless Lawn Mower, Electric Mower
85

Specifications

SpecPowerSmart 21-Inch 3-in-1 Gas Self-Propelled LawnWORX Nitro 21" Cordless Lawn Mower, Electric Mower
Engine170cc OHVBrushless Motor
Price$297.49$359.99
Bestseller Rank72644191
Height Adjustment6 Positions7 Positions
Functionality3-in-13-in-1

Dimension comparison

PowerSmart 21-Inch 3-in-1 Gas Self-Propelled LawnWORX Nitro 21" Cordless Lawn Mower, Electric Mower

Overview of the PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower

The PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower is priced at $297.49, making it a budget-friendly option compared to its competitor. It is powered by a 170cc OHV engine, which offers reliable performance for various mowing tasks. The mower's versatility is evident in its 3-in-1 capabilities, allowing users to bag, mulch, or rear-discharge grass clippings. With a cutting width of 21 inches and six adjustable cutting heights, it caters to different lawn sizes and grass conditions. This mower has a bestseller rank of 7264, indicating a solid market presence.

Overview of the WORX Nitro 21" Cordless Lawn Mower

The WORX Nitro 21" Cordless Lawn Mower comes with a higher price tag of $359.99, which is approximately 21% more expensive than the PowerSmart model. However, it offers advanced features such as Aerodeck technology and Intellicut, enhancing cutting efficiency and runtime management. This electric mower is equipped with a brushless motor that provides 40% more power and 10% longer runtime than previous models, making it suitable for lawns up to half an acre. Its bestseller rank of 4191 suggests a strong appeal among consumers seeking cordless solutions.

Engine and Power Source Comparison

The PowerSmart mower is powered by a 170cc OHV gas engine, known for its reliability and durability, particularly in tougher mowing conditions. This type of engine often provides consistent power and is less affected by weather conditions. In contrast, the WORX Nitro operates on two 20V 5.0Ah PowerShare Pro batteries, which eliminate emissions and noise associated with gas mowers. The brushless motor in the WORX model is designed for efficiency and longevity, making it an attractive choice for those seeking a quieter, electric alternative.

Cutting Performance and Versatility

In terms of cutting performance, both mowers offer a 21-inch cutting width and 3-in-1 functionality, allowing for bagging, mulching, and rear discharging. The PowerSmart mower features six cutting height adjustments ranging from 1.5 inches to 3.9 inches, enabling users to customize their mowing experience. On the other hand, the WORX Nitro provides an adjustable height range from 1.5 inches to 4 inches, which gives it a slight edge for those who prefer taller grass. The Aerodeck technology in the WORX mower enhances airflow, leading to better cut quality and efficiency, particularly in thicker grass.

Maneuverability and Ease of Use

Maneuverability is crucial for any lawn mower, especially in uneven terrain. The PowerSmart mower features a rear-wheel drive with large 10-inch rear wheels, providing excellent traction and stability. This makes it suitable for hilly or rough lawns. Conversely, the WORX Nitro offers a self-propelled function with variable speed settings, allowing users to adjust their mowing speed up to 3.7 MPH. This feature enhances ease of use, particularly on inclines, making it more user-friendly for those who may struggle with pushing a traditional mower.

Storage and Maintenance

When it comes to storage convenience, the WORX Nitro includes a fully collapsible handle, allowing for vertical storage and saving space in garages or sheds. It also features an onboard charge-level indicator, which is beneficial for monitoring battery life during use. The PowerSmart mower does not specify similar storage features but is generally easier to maintain due to its gas engine. Gas mowers tend to require more upkeep, including oil changes and spark plug replacements, while electric mowers like the WORX typically necessitate less frequent maintenance.

Pricing and Value for Money

The PowerSmart mower is priced at $297.49, making it about 17% cheaper than the WORX Nitro at $359.99. For budget-conscious consumers, this price difference may be a significant factor in decision-making. However, the WORX Nitro offers advanced features that can justify its higher price, particularly for those who value electric power and lower emissions. The choice between the two will depend on individual preferences for gas versus electric power, along with the specific features each user finds most beneficial.

Which should you buy?

In conclusion, the choice between the PowerSmart 21-Inch 3-in-1 Gas Self-Propelled Lawn Mower and the WORX Nitro 21" Cordless Lawn Mower ultimately hinges on your specific needs and preferences. If you prioritize budget and a reliable gas engine for tough mowing jobs, the PowerSmart is an excellent option. However, if you prefer advanced technology, a quieter operation, and a more eco-friendly solution, the WORX Nitro justifies its higher price with enhanced features. Your decision should align with your lawn size, terrain, and whether you value the independence of gas power or the convenience of electric operation.