
PowerSmart PowerSmart 21" Self-Propelled Lawn Mower with 140cc Briggs & Stratton Engine - Heavy-Duty Steel Deck, 6 Cutting Heights, 3-in-1 Mulching System
When you purchase through links on our site, we may earn an affiliate commission.
Winnowl Verdict
The Mediocre Value rating stems from the $386.63 cost that is 11% less efficient than the $371.29 average for the Gas Powered Self Propelled Lawn Mowers class.
The Strong Performance measures 7% below the average; you can see this in the 6 settings Cutting Height Adjustment which provides you should be able to easily dial in the perfect height for your specific lawn and seasonal needs, even though the 140 cc Engine Displacement eventually leads to you will likely notice the engine struggling or "choking" when attempting to mulch thick grass or navigate uphill.
The Average Brand Strength of PowerSmart is a combination of the Average Brand Trust and Average Brand Reliability.
The Winnowl Lab Report
| Specification | Value | Rating | Vs. Average | Winnowl Insight |
|---|---|---|---|---|
| Engine Displacement | 140 cc | Mediocre | 15% worse | Entry-level displacement. Engines in this range (typically 140cc) lack the torque required for heavy-duty residential tasks. |
| Cutting Width | 21 inches | Average | 2% worse | Full-size residential benchmark. The 21-22 inch deck is the gold standard for balancing speed, storage, and handling. |
| Cutting Height Adjustment | 6 settings | Average | 4% worse | Standard residential precision. Provides enough versatility to handle everything from low spring cuts to tall summer maintenance. |
| Warranty | 2 Years | Average | 7% worse | Standard industry backing. This 2-year window is the baseline for most reputable residential gas mower brands. |
Ranking Factors
Insights
- Value Rank: #22 out of 15.
- Performance Rank: #25 out of 15.
- Winnowl Quadrant: Budget
Neutral
- A Cutting Width of inches is about average (21.36 inches) but narrower than the widest in class at 24 inches.
- A Warranty of Years is about average 2.14 Years but below best in class at 3 Years.
- A Cutting Height Adjustment of settings is about average (6.28 settings) but not as many as the class max of 8 settings.
Weaknesses
- Lowest Engine Displacement in its class at 140 cc, well below the class high at 201 cc.
Comparison
| Name | Winnowl Index | Value | Performance | Brand | Price | Engine Displacement | Cutting Width | Warranty | Cutting Height Adjustment |
|---|---|---|---|---|---|---|---|---|---|
| PowerSmart PowerSmart 21" Self-Propelled Lawn Mower |
MEDIOCRE
69
|
Mediocre | Strong | Average | $386.63 | 140 cc | 21 inches | 2 Years | 6 settings |
| SENIX LSPQR2-M1 Gas Powered Self Propelled Lawn Mower |
STRONG
83
|
Fair | Exceptional | Average | $449.00 | 201 cc | 22 inches | 3 Years | 6 settings |
| SENIX LSPQR2-M2 Gas Powered Self Propelled Lawn Mower |
STRONG
82
|
Mediocre | Exceptional | Average | $501.99 | 201 cc | 22 inches | 3 Years | 6 settings |
| RYIRSHOH RY-G20140 Gas Powered Self Propelled Lawn Mower |
GHOST
45
|
Exceptional | Strong | Zero | $205.99 | 140 cc | 20 inches | 1 Years | 8 settings |