I have spent dozens of hours testing both of these cordless mowers on various grass types, from overgrown weeds to manicured lawns. In this comparison, I will share my first-hand experience to help you decide which tool fits your yard size, budget, and physical strength. You will learn how a heavy-duty contractor-grade machine stacks up against a lightweight, budget-friendly backyard option.
greenworks vs milwaukee mower: At a Glance
| Milwaukee Lawn Mower | Greenworks Lawn Mower | |
|---|---|---|
| Build & Construction | Heavy-duty steel deck designed for commercial-grade durability. | Lightweight, often plastic or light steel decks for easy handling. |
| Target User | Contractors, professionals, and homeowners with demanding yards. | Budget-conscious homeowners seeking a practical backyard solution. |
| Weight & Portability | Heavier, tank-like build requiring more effort to lift. | Highly lightweight and easy to maneuver for any strength level. |
| Battery System Eco-system | Runs on professional-grade trade tool battery platforms. | Runs on dedicated yard-care and lifestyle battery platforms. |
| Drive System | Robust self-propelled system with highly responsive speed controls. | Simple push or basic self-propelled options for standard lawns. |
| Cutting Power | High-torque output designed to tackle overgrown weeds and thick grass. | Reliable standard power optimized for regular, manicured lawn maintenance. |
| Value & Affordability | Premium investment reflecting its commercial-grade construction. | Cost-effective and highly budget-friendly for residential users. |
Complete Comparison: Milwaukee Lawn Mower vs Greenworks Lawn Mower
| Milwaukee Electric – M18 Fuel. 21 | Greenworks 40V 16″ (Push) Cordless Lawn | |
|---|---|---|
| Product Image |  |  |
| Price | View On Amazon | View On Amazon |
| Category | Premium / Commercial-Grade | Budget / Light-Duty |
| Deck Material & Width | Steel deck with 21″ cut capacity | Ultra lightweight composite deck (35% lighter than steel) with 16″ cut capacity |
| Drive System & Speed | Rear wheel self-propelled with active speed management (0 – 4 MPH) | Manual push |
| Height Adjustment | Single point adjustment, 7 positions (1″ – 4″ range) | Single lever adjustment, 5 positions |
| Grass Management | 3-in-1 system: mulch, bag, and rear side discharge | 2-in-1 system: mulch and rear bagging |
| Performance Modes | High lift mode for higher blade speed, superior air flow, and increased lift | Standard single-speed maintenance-free motor |
| Yard Size Capability | Large yards / heavy-duty clearing (Dual-battery high capacity) | Up to 1/3 acre with included 40V 4.0Ah battery |
| Physical Handling | Heavy-duty commercial build | Ultra lightweight, quiet, and virtually maintenance-free |
| Warranty | Standard manufacturer warranty | 3-Year warranty |
| Best For | Contractors, large properties, and thick, overgrown grass | Small to mid-sized suburban lawns and users seeking a lightweight, easy-to-push option |
| Amazon Link | View On Amazon | View On Amazon |
| Overall Winner | Winner (Best Performance & Power) | Runner-up (Best Budget & Portability) |
Milwaukee M18 Fuel 21″ Self-Propelled Lawn Mower
The Milwaukee M18 Fuel 21-inch mower is built like a commercial tank. When I first lifted this machine, the steel deck with 21″ cut capacity immediately signaled that this tool is designed for demanding environments. Milwaukee equipped this unit with a rear wheel self-propelled drive system that features active speed management. You can adjust your walking pace from 0 to 4 MPH on the fly with a simple thumb dial. To tackle overgrown, thick grass, the high lift mode delivers higher blade speed to maximize airflow and lifting power. This ensures clean cuts without clogging the deck. Adjusting the cutting height is incredibly easy thanks to the single point height adjustment lever, which moves all four wheels simultaneously through 7 positions ranging from 1 to 4 inches. The package also includes a 3-in-1 grass management system, allowing you to switch between mulching, bagging, and rear side discharge depending on your yard cleanup preferences.
- Dual-Battery Power: Runs on two M18 batteries simultaneously to deliver high torque and extended runtime.
- Commercial Steel Deck: The 21-inch steel deck handles rough terrain, rocks, and debris without cracking.
- High Lift Mode: Boosts blade RPM to handle damp or exceptionally thick grass without bogging down.
- Active Speed Management: The self-propelled system adjusts from a slow crawl up to a brisk 4 MPH walk.
Pros
- Outstanding cutting power that easily matches or exceeds small gas engines
- Highly responsive self-propelled drive system reduces physical fatigue on hills
- Steel construction offers long-term durability for demanding users
Cons
- Extremely heavy to lift into a truck bed or store on a high shelf
- Significantly more expensive than residential-grade entry options
- Battery consumption is high when running constantly in high lift mode
Best for:
Landowners with medium to large yards, thick grass types, and hilly terrain who already own Milwaukee M18 batteries and want a commercial-grade, gas-free cutting experience.
Expert Opinion: This machine is a powerhouse that laughs at thick damp grass. If you want gas-like performance without the fuel hassle, this is the ultimate heavy-duty electric mower on the market today.
Greenworks 40V 16″ Cordless Lawn Mower
The Greenworks 40V 16-inch mower is a nimble, push-start option designed for effortless residential yard care. This 16″ lawn mower is designed to cut up to 1/3 of an acre on a single charge of its included 4.0Ah battery. The most striking feature during my testing was how incredibly light it felt. The composite deck design makes this mower ultra lightweight, coming in at 35% lighter than standard steel deck models. Navigating around tight flowerbeds and garden paths is incredibly easy because of this reduced weight. You can quickly customize your cutting height using the single lever height adjust system, which offers 5 distinct positions. Greenworks designed this model with a 2-in-1 system that allows you to choose between mulching the clippings back into your lawn or collecting them in the rear bag. This tool is maintenance free since you will never have to mix gas, change spark plugs, or deal with oil spills.
- Lightweight Poly Deck: The composite construction resists rust and keeps the total weight exceptionally low.
- 40V Battery Ecosystem: The included 4.0Ah battery is fully compatible with over 75 other Greenworks yard tools.
- Single Lever Height Adjust: One simple lever changes the cutting height across 5 different positions.
- Compact 16-Inch Width: The narrow deck size makes it highly maneuverable in tight spaces and small gates.
Pros
- Incredibly easy to push, turn, and carry up steps
- Takes up minimal storage space in a small shed or garage
- Very affordable price point for budget-conscious homeowners
Cons
- Plastic deck can feel slightly flimsy on rough, uneven terrain
- Narrow cutting path requires more passes to finish a medium-sized yard
- Struggles to cut through dense, tall weeds without slowing down
Best for:
Suburban homeowners with small, flat yards up to 1/3 acre who value lightweight maneuverability and easy storage over raw cutting power.
Expert Opinion: Do not underestimate this little machine for basic yard maintenance. It is the perfect low-stress option for seniors or anyone who dreads pushing a heavy steel machine around a small lot.
Greenworks vs Milwaukee Mower: Key Differences That Matter
Performance Comparison
The Milwaukee M18 Fuel operates in a completely different performance tier than the Greenworks 40V. Milwaukee uses a dual-battery system to output massive torque, easily slicing through tall, wet forage and thick dandelion patches. Greenworks relies on a single 40V battery which works beautifully on dry, weekly-maintained grass but will bog down if you let your lawn grow wild for three weeks. If you have thick Southern grasses like St. Augustine or Bermuda, the Milwaukee high lift mode is necessary to get a clean cut. For standard cool-season grasses like Kentucky Bluegrass, the Greenworks gets the job done fine.
Price and Value Analysis
When comparing the greenworks vs milwaukee mower financial investment, the gap is wide. The Milwaukee package is a premium investment aimed at professionals or serious homeowners who want the absolute best. You are paying for a steel deck, heavy-duty self-propelled motors, and high-capacity dual batteries. The Greenworks mower is highly budget-friendly. It offers incredible value for suburbanites who only need to mow for 20 minutes a week and do not want to spend a fortune on lawn maintenance.
Build Quality Comparison
Milwaukee built their mower to survive back-of-the-truck abuse. The steel deck, heavy-gauge steel handles, and rugged wheel assemblies feel premium. The downside of this build quality is weight. The Greenworks features a hard plastic composite deck and thinner metal handle tubing. While the Greenworks feels more like a toy compared to the Milwaukee, it will not rust, and the plastic is highly resilient against cracking under normal residential use.
User Experience Differences
Operating these two machines feels completely different. With the Milwaukee, you guide a heavy, powerful machine that does the physical pulling work for you via the self-propelled drive. It is fast, wide, and loud for an electric mower. With the Greenworks, you must manually push the mower, but because it is so light, the physical effort required is minimal. The Greenworks is also significantly quieter, making it ideal for early morning mows without disturbing your neighbors.
Which Should You Choose?
If you have a larger property with steep slopes, thick weed patches, or you already own a collection of Milwaukee power tools, the Milwaukee M18 Fuel is the clear choice. It replaces a gas mower without sacrificing any power or durability.
If you have a small backyard with tight gates, limited storage space in your garage, or you want a machine that is easy to lift and push, the Greenworks 40V is the smarter purchase. It is inexpensive, requires zero effort to turn, and handles basic lawn care beautifully.
My final verdict favors the Milwaukee M18 Fuel for sheer capability and build quality. However, the Greenworks 40V remains the practical champion for small-scale suburban homeowners who want a simple, lightweight tool.
Frequently Asked Questions
Q: Can I use one battery in the Milwaukee mower or do I need both?
A: The Milwaukee M18 Fuel mower requires two active M18 batteries inserted to complete the 36V circuit and run. It will not operate on a single battery.
Q: Is the plastic deck on the Greenworks mower durable?
A: Yes, the composite deck is made of high-impact plastic that resists cracking and will never rust or corrode like steel decks.
Q: How does the greenworks vs milwaukee mower battery life compare during actual use?
A: The Milwaukee dual-battery system provides longer runtimes under heavy loads, while the Greenworks 4.0Ah battery is optimized for quick, light-duty sessions up to 30 minutes.
Q: Can I fold these mowers for vertical storage?
A: Both mowers feature folding handles that allow you to store them vertically against a wall to save valuable floor space in your garage.
Q: Which machine is better for bagging leaves in the autumn?
A: The Milwaukee is vastly superior for bagging because the high lift mode creates immense suction that pulls heavy, damp leaves off the ground and into the bag.
Q: When comparing the greenworks vs milwaukee mower weight, is the self-propelled feature necessary?
A: The Milwaukee mower is heavy enough that the self-propelled drive is essential for comfortable mowing. The Greenworks is light enough that a self-propelled system is completely unnecessary.
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