Greenworks vs SENIX: Lawn Mowers Compared by Specs
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When you compare the greenworks vs SENIX lawn mower options, you are looking at two very different power sources. Both brands offer push mowers that are easy to maneuver in tight spaces. The main difference lies in how they generate power. One uses a 40V battery system, while the other relies on a 144cc gas engine. This choice affects cutting width, runtime, and maintenance needs for your specific yard.
Key differences
| Aspect | Greenworks 40V 16-Inch Push Lawn Mower | SENIX 20-Inch 144cc Gas Push Lawn Mower |
|---|---|---|
| Power Source | 40V Cordless battery, 4.0 Ah | Gas, 144cc 4-cycle |
| Cutting Width | 16 in | 20 in |
| Cutting Height Positions | 5 positions | 3 positions |
| Mowing Function | 2-in-1 mulch and rear bag | not listed |
| Warranty | 3-year limited | 2-year |
Which one should you choose?
Choose Greenworks 40V 16-Inch Push Lawn Mower if
- You prefer zero emissions and quiet operation for small to medium yards.
- You want a lighter mower that is 35% lighter than steel deck models.
- You need mulching and bagging options with a longer warranty period.
Choose SENIX 20-Inch 144cc Gas Push Lawn Mower if
- You have overgrown grass or larger areas requiring a wider 20-inch cut.
- You want unlimited runtime by refueling with gas instead of waiting to recharge.
- You need to tackle steep slopes or rough terrain with larger 7-inch wheels.
Verdict: Choose the Greenworks if you prioritize ease of use, mulching versatility, and a longer warranty for smaller, well-maintained lawns. Pick the SENIX if you need more cutting width and raw engine power to handle thick grass or uneven terrain without battery constraints.
Greenworks vs SENIX: Spec Comparison
Cutting Width
The SENIX 20-Inch Gas Push Lawn Mower features a 20-inch cutting deck. This wider path covers more ground per pass than the Greenworks 40V 16-Inch Push Lawn Mower, which has a 16-inch deck. A wider deck means fewer passes are needed to complete a lawn. This can save time on larger areas. The Greenworks model is narrower, which may be easier to maneuver in tight spaces or around obstacles. You should choose based on your yard size. Wider decks are efficient for open lawns. Narrower decks offer better control in confined areas.
Power Source
You must decide between electric and gas power. The Greenworks mower uses a 40V cordless battery system with a 4.0 Ah capacity. This offers quiet operation and zero direct emissions. The SENIX mower uses a 144cc 4-cycle gas engine. Gas power provides unlimited runtime as long as you have fuel. You do not need to wait for charging. The Greenworks battery needs recharging between uses. The SENIX requires fuel and oil maintenance. Your choice depends on whether you prefer the convenience of cordless electric or the endurance of gas.
Cutting Height
Height adjustment options differ between the two mowers. The Greenworks 40V model offers five positions for cutting height adjustment. This allows for finer tuning of your lawn's appearance. The SENIX gas mower provides three positions: 1.35 inches, 2.3 inches, and 3.15 inches. The Greenworks model gives you more granular control over grass length. The SENIX settings cover a range from short to tall cuts. If you need precise height settings, the Greenworks lever system is superior. If you prefer simple, broad adjustments, the SENIX system is adequate.
Mowing Function
Both mowers offer specific handling for grass clippings. The Greenworks 40V mower features a 2-in-1 system. It supports both mulching and rear bagging. This gives you flexibility to recycle nutrients or collect clippings. The SENIX mower data does not explicitly list a mulch or bagging system in its key specs. It focuses on the cutting action itself. The Greenworks system allows you to choose how to dispose of clippings. This versatility is useful for maintaining lawn health. The SENIX mower may require separate attachments or different handling for clippings.
Weight
Portability is important for storage and maneuvering. The Greenworks 40V mower weighs 37.5 pounds. The SENIX gas mower weighs 39.3 pounds. The Greenworks model is slightly lighter. This difference is small but may matter when lifting the mower into a trunk or shed. The SENIX mower is still described as lightweight for its class. Both mowers are push models, so you must provide the effort to move them. The Greenworks claims to be 35% lighter than steel deck mowers. Both are manageable for most users.
Which mower fits your yard needs
Small yard owner with existing Greenworks tools
You already own Greenworks 40V equipment. This mower uses a 4.0 Ah battery that works with over 75 other tools in their ecosystem. The 16-inch cutting width is sufficient for smaller lawns up to one-third acre. It includes a charger and offers a 3-year warranty, providing long-term reliability and parts compatibility with your current cordless toolkit.
User with larger or uneven terrain
The 20-inch cutting deck covers more ground per pass, saving time on larger areas. Its 144cc gas engine requires no charging. The 7-inch wheels provide better traction on slopes and rough terrain. You can adjust the cutting height in three positions to handle varying grass conditions. This push mower is designed for straightforward operation without battery limitations.
Buyer preferring mulching and bagging options
This model features a 2-in-1 system that supports both mulching and rear bagging. You can choose how to dispose of clippings based on your preference. The 5-position single-lever height adjustment allows for quick changes. It weighs 37.5 pounds, making it lighter than steel deck alternatives. This flexibility suits users who want to manage lawn waste in multiple ways.
The products compared
Greenworks 40V 16-Inch Push Lawn Mower
Best for: small lawns under 1/3 acre
- Power Source
- Cordless
- Cutting Width
- 16 in
- Voltage
- 40V
- Drive Type
- Push
- Battery Capacity
- 4.0 Ah
- Cutting Height
- 5 position
View on Amazon: Greenworks 40V 16-Inch Push Lawn Mower Affiliate link
This Greenworks mower features a 16-inch cutting deck and a 40V 4.0 Ah battery. It weighs 37.5 pounds, making it 35% lighter than steel deck models. You get a 2-in-1 mulch and bag system with 5 height positions. The 40V platform works with over 75 tools. It is a practical option for small lawns up to 1/3 acre.
Pros
- 40V 4.0 Ah battery included
- 16-inch cutting width
- Lightweight 37.5 lb design
- 5-position height adjustment
- Mulch and rear bag options
Cons
- 16-inch deck is narrower than the 20-inch SENIX
- Push drive requires manual effort
- 3-year warranty is shorter than standard 4-year options
Good fit if
- You have a small lawn under 1/3 acre
- You want to use one battery across multiple tools
- You prefer a lightweight mower for easy storage
Skip if
- You need a wider 20-inch cutting deck
- You want self-propelled wheels for hilly terrain
- You require a longer warranty period
Verdict: Greenworks 40V 16in Push Mower suits users with small yards who value lightweight handling and tool ecosystem compatibility. It is not ideal for those needing wider cuts or self-propelled power.
SENIX 20-Inch 144cc Gas Push Lawn Mower
Best for: Small yards and tight spaces
- Power Source
- Gas
- Cutting Width
- 20 in
- Drive Type
- Push
- Cutting Height
- 1.35-3.15 in, 3 positions
- Application
- Yard, Lawn
- Dimensions
- 25.6 × 21.8 × 13 inches
View on Amazon: SENIX 20-Inch 144cc Gas Push Lawn Mower Affiliate link
The SENIX 20-inch push mower uses a 144cc 4-cycle gas engine. It features a 20-inch cutting width and three height settings ranging from 1.35 to 3.15 inches. Weighing 39.3 pounds, it maneuvers easily around obstacles. This model suits small yards and tight spaces where a lighter, gas-powered unit is preferred over heavier electric alternatives.
Pros
- 20-inch cutting width covers more ground than 16-inch models
- 144cc 4-cycle gas engine provides consistent power
- Lightweight 39.3-pound design aids maneuverability
- Three cutting height positions for varied grass conditions
Cons
- Push drive requires physical effort on slopes
- Requires gasoline and oil maintenance
- No self-propel mechanism included
Good fit if
- You have a small yard with tight spaces
- You prefer gas power for unlimited runtime
- You want a lightweight mower for easy handling
Skip if
- You need self-propelled assistance for hills
- You want to avoid fuel and oil maintenance
- You have a large lawn needing wide cuts
Verdict: SENIX 20" Gas Push Mower fits users with small, flat yards who need a lightweight, gas-powered unit. It offers a wider cut than the 16-inch electric competitor but requires manual pushing.
Specifications side by side
| Spec | Greenworks 40V 16-Inch Push Lawn Mower | SENIX 20-Inch 144cc Gas Push Lawn Mower |
|---|---|---|
| Power Source | Cordless | Gas |
| Cutting Width | 16 in | 20 in |
| Voltage | 40V | not stated |
| Drive Type | Push | Push |
| Battery Capacity | 4.0 Ah | not stated |
| Cutting Height | 5 position | 1.35-3.15 in, 3 positions |
| Mowing Function | 2-in-1 (mulch, rear bagging) | not stated |
| Application | Lawn | Yard, Lawn |
| Dimensions | 50.8 × 18.9 × 39 inches | 25.6 × 21.8 × 13 inches |
| Weight | 37.5 pounds | 39.3 pounds |
| Size | 16" Cordless (4.0Ah) | 20" |
| Color | Green | Blue |
| Model | 25322 | LSPG-L4 |
Frequently asked questions
Is the Greenworks mower better for small yards?
Yes, the Greenworks 40V model is designed for small lawns under one-third acre. Its 16-inch cutting width and lightweight 37.5-pound frame make it easy to maneuver in tight spaces. The 4.0 Ah battery supports tool ecosystem compatibility, which is useful if you own other Greenworks equipment.
Does the SENIX mower have a wider cut?
Yes, the SENIX 20-Inch Gas Push Lawn Mower features a 20-inch cutting deck. This is four inches wider than the Greenworks 16-inch model. A wider cut allows you to cover more ground per pass, reducing the total number of passes needed for your lawn.
Which mower is lighter to push?
The Greenworks mower is slightly lighter at 37.5 pounds. The SENIX gas model weighs 39.3 pounds. Both are push mowers without self-propelled drive systems, so you will need to provide all the effort for movement. The weight difference is minimal for most users.
Can I use the Greenworks battery with other tools?
Yes, the Greenworks 40V 4.0 Ah battery is part of a larger ecosystem. It is compatible with over 75 other Greenworks tools. This allows you to share batteries across your yard equipment, reducing the need to purchase multiple separate power sources for different jobs.
Is the SENIX mower gas or electric?
The SENIX 20-Inch model is a gas-powered lawn mower. It uses a 144cc engine rather than a battery. This means you will need to manage fuel and oil separately. It does not require charging, which may suit users who prefer traditional power sources over electric options.
What are the dimensions of the Greenworks mower?
The Greenworks 40V 16-Inch Push Lawn Mower measures 50.8 inches in length, 18.9 inches in width, and 39 inches in height. These dimensions help it fit into standard garages or storage sheds. The compact size aids in storage when the mower is not in use.
Does the SENIX mower have a handle?
Yes, the SENIX 20-Inch Gas Push Lawn Mower includes a handle for operation. The handle is part of the 25.6-inch length structure, allowing you to control the direction and speed. You will need to push the unit manually as it lacks a self-propelled drive mechanism.

