Greenworks 80V 21" Brushless Cordless (S vs PowerSmart 22-Inch Self Propelled Gas La
Quick Verdict
The Greenworks 80V 21" Brushless Cordless (Self-Propelled) Lawn Mower is the better choice for homeowners with small to medium lawns who prioritize quiet operation, low maintenance, and zero emissions. The PowerSmart 22-Inch Self Propelled Gas Lawn Mower, 170cc 4-Cycle OHV Engine is the stronger pick for those with larger yards, uneven terrain, or a tighter budget who don’t mind the ongoing maintenance of a gas engine.
Side-by-Side
| Feature | Greenworks 80V 21" Cordless | PowerSmart 22" Gas |
|---|---|---|
| Price | $559.99 | $359.99 |
| Power Source | 80V battery (brushless motor) | 170cc 4-cycle OHV gas engine |
| Cut Width | 21 inches | 22 inches |
| Self-Propelled | Yes | Yes |
| Best Yard Size | Up to ½ acre | ½ to 1 acre |
| Rating | 4.4/5 (1,696 reviews) | 4.3/5 (517 reviews) |
Where Greenworks Wins
- No gas, no fumes, no noise. The brushless electric motor runs quietly and starts instantly with a push of a button—no priming, pulling cords, or dealing with stale fuel. This makes it ideal for early morning mowing or noise-sensitive neighborhoods.
- Lower maintenance. No oil changes, spark plug replacements, or air filter cleaning. Just charge the battery and mow. The 80V battery system is also compatible with other Greenworks tools (trimmers, blowers), if you already own them.
- Lightweight and easier to maneuver. At roughly 60 lbs (battery included), it’s noticeably lighter than most gas self-propelled mowers, making it easier to push on slopes or lift into a shed.
- Higher user satisfaction. With over 1,600 reviews and a 4.4 average, the Greenworks has more widespread positive feedback, indicating consistent reliability and performance for typical suburban lawns.
Where PowerSmart Wins
- Much lower upfront cost. At $359.99, the PowerSmart is $200 cheaper than the Greenworks. That savings can cover extra gas, oil, and a replacement blade or two.
- Greater raw power and run time. The 170cc gas engine provides sustained torque for thick, wet, or tall grass, and it never runs out mid-mow as long as you have fuel. For lawns over ½ acre, the Greenworks may require a second battery charge to finish.
- Wider 22-inch cutting deck. The extra inch translates to slightly fewer passes on larger lawns, saving time overall.
- Better for rough or uneven terrain. Gas engines deliver consistent power even on hills or in heavy growth, whereas battery mowers can bog down under extreme loads. The PowerSmart’s heavier build also provides more traction.
Which Should You Buy
Choose the Greenworks 80V 21" if: You have a lawn up to ½ acre, want to avoid gas and oil entirely, prefer quiet operation, and are willing to pay more upfront for lower long-term maintenance. It’s especially good for suburban homes with standard grass conditions.
Choose the PowerSmart 22" Gas if: Your lawn is larger than ½ acre, has thick or uneven grass, or you’re on a tighter budget. The gas engine will handle tough jobs without battery anxiety, and the $200 savings can be used for other landscaping needs. Just be prepared for regular engine maintenance and fuel management.