6 Best Alternatives to the KraftSense 21-Inch 40V Self-Propelled Mower (2026)
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If you are looking for kraftsense 21 inch 40v self propelled mower alternatives, this guide compares options based on published specifications. The KraftSense model offers a 40V system with a 21-inch cutting deck and includes four 4.0Ah batteries for extended runtime. Its self-propelled drive reduces pushing effort, making it suitable for small yards. The ultra-quiet motor allows for flexible mowing times without disturbing neighbors.
You might want a different size or drive type for tighter spaces or larger lawns. Some buyers prefer push models for easier storage or lighter handling. Others need a wider cutting width to cover more ground quickly. We selected these alternatives because their core specs overlap with the original. This list includes push mowers with narrower decks for precision work and self-propelled units with larger cutting paths for efficiency. Each option matches the 40V battery platform or offers comparable voltage for similar performance. You can choose based on your yard size and storage constraints.
Our top pick: KraftSense 21-Inch 40V Self-Propelled Mower.
How alternatives compare to the original
KraftSense 14-Inch 40V Cordless Push Mower
This KraftSense push mower reduces the cutting width from 21 inches to 14 inches. You lose the self-propelled drive, meaning you must push the unit manually. However, the lighter 16.3-pound weight and narrower deck make it easier to maneuver in tight spaces or small yards. It retains the 40V voltage and 4.0Ah battery capacity, so runtime per charge remains similar. If you prioritize compact storage and quiet operation over cutting speed, this model suits your needs better than the larger self-propelled version.
KraftSense 14-Inch 40V Cordless Lawn Mower
Like the budget option, this model features a 14-inch cutting deck and push drive, removing the self-propelled assistance found in the original. It shares the same 40V system and 4.0Ah battery capacity, ensuring consistent power output. The design emphasizes lightweight maneuverability for small, flat lawns or urban patios. You trade the wider 21-inch sweep for easier handling in confined areas. This choice works well if you value low-maintenance operation and quiet performance over the broader coverage area provided by the original 21-inch model.
RB 40V 9-Inch Cordless Lawn Mower
The RB 40V model drastically reduces the cutting width to just 9 inches. It operates as a push mower without self-propulsion, requiring more physical effort to move. The primary advantage lies in its compact dimensions, making it ideal for very small, flat lawns where storage space is limited. While it maintains the 40V voltage, the significantly narrower deck means you will need to make more passes to cover the same area. This option suits beginners or those with minimal lawn space who prioritize ease of storage over cutting efficiency.
Steelite 13-Inch 20V Dual-Battery Mower
This Steelite mower drops the voltage to 20V and narrows the cutting width to 13 inches. It lacks self-propulsion, relying on a push design for movement. The unit weighs 25 pounds, which is lighter than the original. It offers mulching functionality and uses 4.0Ah batteries, similar to the KraftSense capacity. You sacrifice power and cutting width for improved maneuverability in tight spaces. This model is practical for small yards where lightweight handling matters more than the broader coverage and higher voltage of the original 40V self-propelled mower.
PowerSmart 20-Inch Self-Propelled Cordless Mower
The PowerSmart model matches the original with a self-propelled drive and 40V voltage, but features a 20-inch cutting deck instead of 21 inches. It includes a brushless motor, which may offer better efficiency and longevity. The dual battery system provides extended runtime comparable to the original. At 57.5 pounds, it is significantly heavier, which affects portability. This mower suits users who need a balance of power and maneuverability for medium lawns. It is a practical alternative if you prefer brushless technology and dual-battery support over the specific 21-inch width of the original.
Greenworks 40V 25-Inch Self-Propelled Mower
The Greenworks mower increases the cutting width to 25 inches while maintaining the 40V voltage and self-propelled drive. It features a brushless motor and dual 4.0Ah batteries for extended runtime. Weighing 76.2 pounds, it is much heavier than the original, impacting storage and transport. The wider deck allows you to cover large lawns more quickly with fewer passes. This model is ideal for homeowners with expansive yards who need maximum coverage and automatic drive assistance. It offers greater power and width compared to the original 21-inch model.
Quick picks
Our 7 picks
KraftSense 21-Inch 40V Self-Propelled Mower
Best for: Small yards needing extended runtime
- Power Source
- 40V battery
- Cutting Width
- 21 in
- Voltage
- 40V
- Drive Type
- self-propelled
- Battery Capacity
- 4 x 4.0Ah
- Application
- Yard, Small Yards, Lawn
View on Amazon: KraftSense 21-Inch 40V Self-Propelled Mower Affiliate link
This 21-inch self-propelled mower uses a 40V battery system to cut grass without a cord. It includes four 4.0Ah batteries and a charger, allowing you to mow larger areas without waiting for a recharge. The ultra-quiet motor lets you work at any time. The self-propelled drive reduces pushing effort. It fits small yards and regular backyard maintenance.
Pros
- Includes four 4.0Ah batteries for extended runtime
- 21-inch cutting deck covers more width per pass
- Self-propelled drive reduces physical effort
- Ultra-quiet motor operates without disturbing neighbors
Cons
- Four batteries make the unit heavier and bulkier to store
- No variable speed control listed for the self-propelled drive
- No smart app or remote control features included
Good fit if
- You want to mow without plugging into an outlet
- You have a small yard that needs efficient coverage
- You need multiple batteries to finish the job in one go
Skip if
- You prefer a lightweight push mower for easy storage
- You want precise speed control for hilly terrain
- You need smart connectivity to track battery status
Verdict: KraftSense 21" 40V Self-Propelled Mower is a solid choice for small yards where runtime matters more than compact storage. The four-battery setup ensures you finish the task without interruption.
KraftSense 14-Inch 40V Cordless Push Mower
Best for: small yards and tight spaces
- Power Source
- 40V battery
- Cutting Width
- 14 in
- Voltage
- 40V
- Drive Type
- push
- Battery Capacity
- 4.0Ah
- Application
- Yard, Small Yards, Lawn
View on Amazon: KraftSense 14-Inch 40V Cordless Push Mower Affiliate link
This KraftSense model is a 14-inch push mower designed for small yards and tight spaces. It runs on a 40V 4.0Ah battery and weighs just 16.3 pounds. The ultra-quiet motor allows for noise-sensitive mowing times. It includes the battery and charger. You will find this lightweight, compact mower ideal for detailed trimming and easy storage.
Pros
- 14-inch cutting deck fits small yards
- Weighs only 16.3 pounds for easy handling
- Includes 40V 4.0Ah battery and charger
- Ultra-quiet motor reduces noise disturbance
Cons
- Push design requires manual effort
- 14-inch width cuts less per pass
- Single battery included limits runtime
Good fit if
- You have a small yard under 5,000 square feet
- You need a lightweight mower for easy storage
- You want to mow quietly without disturbing neighbors
Skip if
- You have a large lawn requiring wide cuts
- You prefer self-propelled ease for hilly terrain
- You need extended runtime for large areas
Verdict: KraftSense 14-Inch 40V Push Mower suits owners of small lawns who value quiet operation and easy maneuverability. It is a practical solution for tight spaces where larger mowers cannot reach.
KraftSense 14-Inch 40V Cordless Lawn Mower
Best for: small urban yards and patios
- Power Source
- 40V battery
- Cutting Width
- 14 in
- Voltage
- 40V
- Drive Type
- push
- Battery Capacity
- 4.0Ah
- Cutting Height
- 1-2.6 in, 5 positions
View on Amazon: KraftSense 14-Inch 40V Cordless Lawn Mower Affiliate link
This KraftSense model is a 14-inch push mower designed for small urban yards and patios. It features a 40V brushless motor and includes a 4.0Ah battery. Weighing just 16.3 lbs, it is lightweight and easy to maneuver. The cutting height adjusts through five positions from 1 to 2.6 inches. It covers up to 3,500 sq. ft. per charge, making it suitable for tight spaces.
Pros
- 14-inch cutting width for precise trimming
- Lightweight 16.3 lb build for easy handling
- Brushless motor for maintenance-free operation
- Includes 40V 4.0Ah battery and charger
- Five-position height adjustment from 1 to 2.6 inches
Cons
- Push drive requires manual effort
- 14-inch deck is narrower than standard mowers
- 3,500 sq. ft. coverage limit per charge
Good fit if
- You have a small yard under 3,500 sq. ft.
- You need to maneuver around tight patio spaces
- You prefer a lightweight mower for easy storage
Skip if
- You require self-propelled drive for hilly terrain
- You have a large lawn exceeding 3,500 sq. ft.
- You need a wider cutting deck for faster coverage
Verdict: KraftSense 14" 40V Push Mower is a practical option for homeowners with small, flat lawns who prioritize lightweight maneuverability over power. It fits users who want a quiet, low-maintenance tool for urban yards.
RB 40V 9-Inch Cordless Lawn Mower
Best for: small yards and tight spaces
- Power Source
- Cordless
- Cutting Width
- 9 in
- Voltage
- 40V
- Battery Capacity
- 2Ah
- Cutting Height
- 1.2" to 2", 3 positions
- Mowing Function
- mulching
View on Amazon: RB 40V 9-Inch Cordless Lawn Mower Affiliate link
The RB 40V 9-Inch Mini Mower is a compact, ultra-light solution for small lawns up to 540 square feet. It features a 9-inch cutting width, a brushless motor running at 6000 RPM, and a 2Ah battery. The unit weighs just 11.5 pounds without the battery, offering one-hand steering and pivoting front wheels for tight maneuverability. You can adjust the cutting height to three positions between 1.2 and 2 inches.
Pros
- 9-inch cutting width for precise trimming in tight spaces
- Ultra-light 11.5-pound weight without battery for easy handling
- Brushless motor delivers 6000 RPM for fine mulching
- Detachable handle saves 70% of storage space
Cons
- 9-inch cutting width is significantly narrower than standard 20-inch models
- Small 2Ah battery limits runtime for larger areas
- Only 3 cutting height positions available
Good fit if
- You have a small yard under 540 square feet
- You need a mower that fits in tight corners or small storage areas
- You prefer a lightweight tool for easy maneuverability
Skip if
- You have a large lawn exceeding 540 square feet
- You require a wide cutting deck for faster mowing
- You need a self-propelled system for hilly terrain
Verdict: RB 40V 9-Inch Mini Mower is a practical choice for beginners or those with very small, flat lawns who prioritize storage and weight over coverage area. It is not suitable for standard-sized yards.
Steelite 13-Inch 20V Dual-Battery Mower
Best for: Small yards and tight spaces
- Power Source
- Cordless battery
- Cutting Width
- 13 in
- Voltage
- 20V
- Drive Type
- Push
- Battery Capacity
- 2 x 4.0Ah
- Runtime
- 50 min
View on Amazon: Steelite 13-Inch 20V Dual-Battery Mower Affiliate link
The Steelite 20V 13-Inch Push Mower is a compact, lightweight option for small yards. It features a brushless motor and includes two 4.0Ah batteries for up to 50 minutes of combined runtime. The 13-inch cutting width and 20.5-pound weight make it easy to maneuver in tight spaces. It offers five cutting height positions and a mulching function, providing a simple solution for basic lawn care tasks.
Pros
- Includes two 4.0Ah batteries for extended runtime
- Lightweight 20.5 lb design for easy handling
- Brushless motor for efficient operation
- 5-position cutting height adjustment
Cons
- 13-inch cutting width is narrow compared to competitors
- Push-only design lacks self-propulsion
- 8-gallon grass bag may require frequent emptying
Good fit if
- You have a small yard with tight spaces
- You need a lightweight mower for easy storage
- You want extended runtime with dual batteries
Skip if
- You require self-propelled power for slopes
- You need a wider cutting deck for efficiency
- You prefer a larger grass collection bag
Verdict: Steelite 20V 13-Inch Push Mower is a practical choice for small yards where maneuverability matters more than width. It suits users who value lightweight handling and extended battery life over self-propulsion.
PowerSmart 20-Inch Self-Propelled Cordless Mower
Best for: medium lawns needing self-propelled ease and dual batteries
- Power Source
- 40V cordless battery
- Cutting Width
- 20 in
- Voltage
- 40V
- Drive Type
- self-propelled
- Battery Capacity
- 2 x 4.0Ah
- Cutting Height
- 1.5-3.9 in, 6 positions
View on Amazon: PowerSmart 20-Inch Self-Propelled Cordless Mower Affiliate link
This PowerSmart model offers a 20-inch cutting width with a brushless motor and self-propelled rear-wheel drive. It includes two 40V 4.0Ah batteries for extended runtime. The six-position height adjustment ranges from 1.5 to 3.9 inches. You get three cutting modes for mulching, bagging, or side discharge. This setup suits medium-sized lawns where you want reduced pushing effort and reliable power without gas maintenance.
Pros
- Brushless motor for quieter operation and longer life
- Includes two 40V 4.0Ah batteries for continuous runtime
- Self-propelled rear-wheel drive reduces pushing effort
- Six-position height adjustment from 1.5 to 3.9 inches
- 3-in-1 versatility for mulching, bagging, or side discharge
Cons
- 20-inch cutting width is narrower than the 21-inch and 25-inch alternatives
- Heavier build at 57.5 pounds compared to lighter push models
- No mention of a remote control or smart app connectivity
Good fit if
- You have a medium-sized lawn and want self-propelled ease
- You prefer a 20-inch deck for tighter maneuverability
- You want dual batteries to avoid recharge downtime
Skip if
- You need a wider 21-inch or 25-inch cutting path
- You prefer a lightweight push mower under 50 pounds
- You require smart app control or remote features
Verdict: PowerSmart 20" Brushless Self-Propelled Mower fits users who need a balanced mix of power and maneuverability for medium lawns. The dual battery system and self-propelled drive make it a practical option for those tired of pushing heavy mowers.
Greenworks 40V 25-Inch Self-Propelled Mower
Best for: Large lawns needing wide cutting width
- Power Source
- 40V battery
- Cutting Width
- 25 in
- Voltage
- 40V
- Drive Type
- self-propelled
- Battery Capacity
- 4.0Ah
- Runtime
- 70 min
View on Amazon: Greenworks 40V 25-Inch Self-Propelled Mower Affiliate link
This Greenworks mower features a 25-inch steel deck and a brushless motor. It runs on two 4.0Ah batteries for up to 70 minutes of runtime. The self-propelled drive adjusts to your walking speed. It offers seven cutting height positions and three mowing functions. This model suits larger lawns needing a wide cut path.
Pros
- 25-inch steel deck for wider cuts
- Brushless motor for longer life and torque
- Dual battery ports with auto switchover
- 7-position single lever height adjustment
- 3-in-1 mulch, side discharge, and rear bag
Cons
- Heavier at 76.2 pounds than smaller push mowers
- Requires two batteries for full runtime
- No remote or app control listed
Good fit if
- You have a large lawn needing a 25-inch cut
- You want a self-propelled mower for hilly terrain
- You already own Greenworks 40V tools
Skip if
- You prefer a lightweight push mower under 60 pounds
- You only have a small yard under 1000 square feet
- You need a battery-free electric mower
Verdict: Greenworks 25-Inch 40V Self-Propelled Mower fits homeowners with large lawns who need a wide cutting path and automatic drive assistance.
Specifications side by side
| Spec | KraftSense 21-Inch 40V Self-Propelled Mower | KraftSense 14-Inch 40V Cordless Push Mower | KraftSense 14-Inch 40V Cordless Lawn Mower | RB 40V 9-Inch Cordless Lawn Mower | Steelite 13-Inch 20V Dual-Battery Mower | PowerSmart 20-Inch Self-Propelled Cordless Mower | Greenworks 40V 25-Inch Self-Propelled Mower |
|---|---|---|---|---|---|---|---|
| Power Source | 40V battery | 40V battery | 40V battery | Cordless | Cordless battery | 40V cordless battery | 40V battery |
| Cutting Width | 21 in | 14 in | 14 in | 9 in | 13 in | 20 in | 25 in |
| Voltage | 40V | 40V | 40V | 40V | 20V | 40V | 40V |
| Drive Type | self-propelled | push | push | not stated | Push | self-propelled | self-propelled |
| Battery Capacity | 4 x 4.0Ah | 4.0Ah | 4.0Ah | 2Ah | 2 x 4.0Ah | 2 x 4.0Ah | 4.0Ah |
| Runtime | not stated | not stated | not stated | not stated | 50 min | not stated | 70 min |
| Deck Material | not stated | not stated | not stated | not stated | not stated | not stated | steel |
| Cutting Height | not stated | not stated | 1-2.6 in, 5 positions | 1.2" to 2", 3 positions | 5 positions, 0.98-2.56 in | 1.5-3.9 in, 6 positions | 7 positions |
| Mowing Function | not stated | not stated | not stated | mulching | Mulching and bagging | 3-in-1 mulch, bag, side discharge | 3-in-1 mulch, side discharge, rear bag |
| Motor Type | not stated | not stated | brushless | brushless | Brushless | brushless | brushless |
| Application | Yard, Small Yards, Lawn | Yard, Small Yards, Lawn | Yard, Small Yards, Lawn | Yard, Small Yards, Lawn | Yard, Small Yards, Lawn | Lawn | Lawn |
| Dimensions | 24 × 13 × 15 inches | 24.8 × 13.2 × 15.2 inches | 24 × 13 × 15 inches | 5 × 10 × 38 inches | 1 × 1 × 1 inches | 22 × 61 × 39 inches | 53.6 × 27.6 × 45.3 inches |
| Weight | not stated | 16.3 pounds | not stated | not stated | 25 pounds | 57.5 pounds | 76.2 pounds |
| Color | Carbon Fiber Finish, Alpinist Blue | Carbon Fiber Finish, Aurora Green | Carbon Fiber Finish, Alpinist Blue | white | Pistachio | Red & Black | Green&Black |
| Model | Alpinist510-2A420 | X40LM00-2A120-03 | Alpinist330-2A120 | 122 | DG500-2 | MB2420SA | MO40L515 |
| Size | not stated | 14 inch Lawn Mower | 14" Lawn Mower | 9 IN | not stated | 20" Self-Propelled Mower (2 x 4.0Ah) | 25" Dual Blade (2 x 4.0Ah) |
Frequently asked questions
Which alternative offers the widest cutting width?
The Greenworks 40V 25-Inch Self-Propelled Mower provides the widest cutting path at 25 inches. This width allows you to cover large lawns more efficiently than the 21-inch deck on the KraftSense model. It also features a brushless motor and self-propelled drive. The unit weighs 76.2 pounds, so it is best suited for spacious yards rather than tight urban spaces.
Is there a lighter option for small yards?
The KraftSense 14-Inch 40V Cordless Push Mower weighs only 16.3 pounds. This makes it significantly lighter than the 57.5-pound PowerSmart or the 76.2-pound Greenworks models. It is ideal for small yards and tight spaces where maneuverability matters more than cutting width. You must push it manually, but the reduced weight simplifies handling in confined areas.
Can I find a self-propelled mower with a wider deck?
Yes, the PowerSmart 20-Inch Self-Propelled Cordless Mower offers a 20-inch cutting deck with self-propelled drive. It uses a dual 4.0Ah battery system and a brushless motor. While slightly narrower than the KraftSense 21-inch deck, it provides automatic drive assistance. It weighs 57.5 pounds and fits users who need a balance of power and ease for medium lawns.
What is the smallest cutting width available?
The RB 40V 9-Inch Cordless Lawn Mower has the smallest cutting width at 9 inches. It is designed for beginners or those with very small, flat lawns. The unit is lightweight and prioritizes storage and weight over coverage area. It is not suitable for standard-sized yards but works well for patios and tight urban spaces.
Are there 20V options in this list?
The Steelite 13-Inch 20V Dual-Battery Mower operates on a 20V system. It features a 13-inch cutting width and weighs 25 pounds. This model suits small yards where maneuverability is key. It offers mulching functionality and dual battery support. You will need to push it manually, as it lacks a self-propelled drive, making it a practical choice for lightweight handling.
Which mower is best for large lawns?
The Greenworks 40V 25-Inch Self-Propelled Mower is best for large lawns. Its 25-inch cutting width reduces the number of passes needed to complete the job. The self-propelled drive helps manage the 76.2-pound weight on larger surfaces. It includes a brushless motor and dual 4.0Ah batteries. This setup ensures extended runtime and consistent power for extensive mowing tasks.
How do the battery capacities compare across models?
Most models in this guide use 4.0Ah batteries. The KraftSense, PowerSmart, Greenworks, and Steelite options all feature 4.0Ah capacity. The PowerSmart and Greenworks models use dual batteries, providing extended runtime. The KraftSense 21-inch model includes four 4.0Ah batteries in its setup. Consistent capacity across the 40V models allows for interchangeable battery usage if you own multiple tools from the same ecosystem.