Greenworks 40V 21" Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), 5.0Ah Battery and Charger Included
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MEDIOCRE
63
Winnowl Index
Winnowl Verdict
With a MEDIOCRE (63) Winnowl Index, the Greenworks 40V 21" Brushless Cordless (Self-Propelled) Lawn Mower represents a secure market choice, prioritizing the Strong of Greenworks over performance or value. The score relies on the combination of Average Brand Trust and Average Brand Reliability to balance out the Average Performance and Fair Value. At $499.99, the cost mirrors the $658.14 average; meanwhile, the Performance reflects a balance of metrics where the Cutting Height Adjustment of 7 settings suggests you should be able to dial in the exact height needed for your specific grass type as the weather and seasons change while the Total Run Time of 45 minutes indicates you will likely be able to mow a typical front and back yard on one charge without having to stop to find a charger. Based on the Strong Brand Strength that is 8% above the average brand, this is a Safe Bet.
Market Value Index
Fair
$499.99
Overpriced
Fair
High Value
The $499.99 price point is right at the $658.14 average, confirming the Fair Value.
Performance Rating
Average
The Average Performance rating is based on opposing data points; with the Cutting Height Adjustment of 7 settings you should be able to dial in the exact height needed for your specific grass type as the weather and seasons change, but with the Total Run Time of 45 minutes you will likely be able to mow a typical front and back yard on one charge without having to stop to find a charger.
Brand Strength
Strong
The Strong Brand Strength of Greenworks is based on Average Brand Trust and Average reliability in Battery Powered Self-Propelled Lawn Mowers.
Available At
$499.99
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The Winnowl Lab Report
| Specification | Value | Rating | Vs. Average | Winnowl Insight |
|---|---|---|---|---|
| Total Run Time | 45 minutes | Average | 22% worse | Standard suburban endurance. Rated for roughly 1/4 acre under normal conditions. |
| Battery Voltage | 40 V | Mediocre | 28% worse | Standard residential power. Balanced for consistent performance on well-maintained suburban lawns. |
| Warranty | 3 Years | Mediocre | 22% worse | Standard residential protection. Covers the machine through the initial years of typical seasonal use. |
| Charging Time | 150 mins | Mediocre | 53% worse | Extended recovery time. Slow recharge speed may delay your ability to finish larger jobs. |
| Number of Batteries | 1 count | Average | 41% worse | Standard single-battery kit. Ideal for standard suburban lots that can be finished in one session. |
| Battery Capacity | 5 Ah | Average | 15% worse | Standard suburban capacity. Balanced for roughly 45-60 minutes of runtime. |
| Cutting Width | 21 inches | Average | Average | Standard residential deck width. Balanced for efficiency and maneuverability through most garden gates. |
| Cutting Height Adjustment | 7 settings | Average | Average | High-precision adjustment rack. Allows for fine-tuning based on grass species and regional moisture levels. |
Ranking Factors
Insights
- Value Rank: #72 out of 75.
- Performance Rank: #74 out of 75.
- Winnowl Quadrant: Budget
Neutral
- A Battery Capacity of Ah is about average 5.85 Ah but below the class max of 12 Ah.
- A Cutting Width of inches is about average (21.21 inches) but narrower than the widest in class at 26 inches.
- A Cutting Height Adjustment of settings is about average (7.01 settings) but not as many as the class max of 10 settings.
Weaknesses
- At V, the Battery Voltage is below the average of 55.55 V and well below the highest in class at 84 V.
- The Years warranty is in the bottom 10%, offering minimal long-term protection.
- The minutes runtime is in the bottom 10%, significantly trailing the class leaders.
- The mins charge time is in the slowest 10% for this class.
- At only battery, this is in the bottom 10% for included power components.
Comparison
| Name | Winnowl Index | Value | Performance | Brand | Price | Total Run Time | Battery Voltage | Battery Capacity | Cutting Width | Warranty | Charging Time | Number of Batteries | Cutting Height Adjustment |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Greenworks 40V 21" Brushless Cordless (Self-Propelled) Lawn Mower |
MEDIOCRE
63
|
Fair | Average | Strong | $499.99 | 45 minutes | 40 V | 5 Ah | 21 inches | 3 Years | 150 mins | 1 count | 7 settings |
| Kobalt 80-Volt 21-in Self-propelled Battery Lawn Mower |
STRONG
88
|
Exceptional | Strong | Exceptional | $599.00 | 75 minutes | 80 V | 5 Ah | 21 inches | 5 Years | 60 mins | 2 count | 7 settings |
| EGO Power+ LM2156SP-2 Battery Powered Self-Propelled Lawn Mower |
STRONG
80
|
Weak | Strong | Strong | $1,399.00 | 150 minutes | 56 V | 10 Ah | 21 inches | 5 Years | 60 mins | 2 count | 7 settings |
| LiTHELi 18-Inch Brushless Self-Propelled Mower |
MEDIOCRE
68
|
Exceptional | Average | Average | $276.59 | 50 minutes | 40 V | 4 Ah | 18 inches | 5 Years | 120 mins | 2 count | 6 settings |
Rankings
