Greenworks 40V 21" Brushless Cordless (S vs PowerSmart 22-Inch Self Propelled Gas La
Quick Verdict
The PowerSmart gas mower wins for larger, tougher yards where raw cutting power and extended runtime matter most. The Greenworks cordless model is the better choice for smaller to medium properties where quiet operation, low maintenance, and ease of use are top priorities. Your decision hinges on yard size and tolerance for gas engine upkeep.
Side-by-Side
| Feature | Greenworks 40V 21" Brushless Cordless | PowerSmart 22" Self Propelled Gas |
|---|---|---|
| Price | $399.99 | $359.99 |
| Power Source | 40V battery (brushless motor) | 170cc 4-cycle OHV gas engine |
| Cut Width | 21 inches | 22 inches |
| Best Yard Size | Up to 1/3 acre | 1/4 to 1/2+ acre |
The Greenworks costs $40 more but includes a battery and charger. The PowerSmart offers a slightly wider cutting deck and substantially more sustained power for thick, wet, or tall grass.
Where Greenworks Wins
Ease of use and low maintenance. No gas, oil changes, spark plugs, or carburetor cleaning. Just press a button and mow. The brushless motor is quieter and vibration-free, making early-morning or late-evening mowing more neighbor-friendly.
Instant start and stop. No pull cord, no choke, no priming. The self-propelled drive is variable-speed and responds smoothly. Stopping is as simple as releasing the bail handle.
Lighter and more maneuverable. Without a heavy gas engine and fuel tank, the Greenworks is easier to push (even with self-propulsion) and turns more nimbly around flower beds and trees. It also folds for compact storage.
No emissions or fuel smell. Great for those sensitive to exhaust fumes or wanting to reduce their carbon footprint. Battery operation also means no fuel stabilizer or winterization steps.
Where PowerSmart Wins
Unlimited runtime. As long as you have gas, you can mow a half-acre or more in one session without recharging. No waiting for batteries to recharge or buying a second battery for large yards.
More cutting power. A 170cc gas engine delivers consistent torque through thick, damp, or overgrown grass that can bog down a cordless mower. The 22-inch deck also covers slightly more ground per pass.
Lower upfront cost. At $359.99, it’s $40 cheaper than the Greenworks. If you already own gas lawn equipment, you may already have fuel and oil on hand.
Proven reliability for larger properties. Gas mowers have a long track record of handling uneven terrain, slopes, and heavy grass without power fade. The self-propelled drive on the PowerSmart is robust enough for hilly yards.
Which Should You Buy
Choose the Greenworks 40V if: Your yard is 1/3 acre or less, you value quiet operation and zero maintenance, and you want a lightweight mower that starts instantly. It’s ideal for suburban lots, especially if you have neighbors close by or dislike dealing with gas engines.
Choose the PowerSmart if: Your yard exceeds 1/3 acre, has thick grass or uneven ground, or you need to mow without worrying about battery life. The gas engine’s sustained power and lower price make it the practical choice for larger properties and those who already maintain gas equipment.
For most homeowners with a typical quarter-acre lot, the Greenworks offers a cleaner, quieter experience. For anyone pushing toward half an acre or dealing with tough cutting conditions, the PowerSmart’s gas engine is the more capable tool.