· Mason Everett · Reviews · 10 min read
21 Self Propelled Lawn Mower
Finding the perfect 21 self propelled lawn mower can feel overwhelming with so many options available on the market today.
Whether you have a small suburban yard or a large property with challenging terrain, the right mower can transform your lawn care routine from a dreaded chore into a quick, effortless task.
During our extensive evaluation process, we assessed each machine across several critical criteria: engine power and reliability, cutting performance and versatility, ease of maneuverability, build quality and durability, and overall value for your investment.
We also prioritized eco-friendly options that reduce emissions without sacrificing performance, recognizing that many homeowners are seeking greener alternatives to traditional gas-powered equipment.
This comprehensive guide presents our findings and recommendations to help you make an informed decision based on your specific needs and budget.
Let’s explore the top-performing models that stood out in our head-to-head testing.
Expert Recommendations ✨
Our Top Picks
After testing dozens of products, we've selected the best options for every budget and need. Each recommendation has been thoroughly evaluated for performance, durability, and value.
YARDMAX 22in 201cc Select PACE
Industry-leading CVT transmission with 6-speed adjustment and powerful 201cc engine. Exceptional speed variability and traction make this our top choice for medium to large yards.
WORX Nitro 21in Cordless
Premium cordless option with Aerodeck technology, brushless motor, and IntelliCut. Perfect for up to 1/2 acre with included dual batteries and Variable Speed self-propulsion.
PowerSmart 21in Gas
Affordable 170cc self-propelled mower with 3-in-1 functionality, durable steel deck, and 6-position height adjustment. Great value for homeowners seeking quality without breaking the bank.
Greenworks 80V Cordless
Zero-emission 80V brushless mower cutting up to 1/2 acre per charge. LED headlights for early morning mowing and 3x quieter than gas alternatives.
AMERISUN 21in 170cc
Reliable 170cc 4-stroke engine with high-wheel design for easy maneuvering. Versatile 3-in-1 mowing functions with 1.4-bushel capacity bag.
MUTAOMAY 21in 170CC
Versatile self-propelled mower with 7-position cutting height and 3-in-1 capabilities. Large capacity grass bag and robust 170CC engine handle demanding conditions.
PowerSmart EasyGlide
144cc push mower with steel deck and 6 height adjustments. Smooth ball-bearing wheels and reliable performance at an accessible price point.
WORX Nitro 21in Push
Compact cordless push mower with IntelliCut technology and 7-position height adjustment. Includes dual batteries and rapid charger for continuous operation.
Amerisun 21in Self-Propelled
Powerful 170cc OHV engine with forced air-cooling for extended use. Wide 21-inch steel deck covers more ground efficiently with foldable storage.
AMERISUN 21in Foldable
Easy assembly with foldable handle design for compact storage. High-wheel configuration and durable construction make it ideal for suburban use.
21 Self Propelled Lawn Mower
Selecting the right self-propelled lawn mower can dramatically improve your lawn care experience, saving you time and effort while delivering consistently beautiful results.
Whether you prefer the traditional power of gas engines or the eco-friendly convenience of cordless technology, we’ve tested the leading models to bring you comprehensive reviews that help you find the perfect match for your yard.
Our side-by-side evaluation reveals how each machine performs in real-world conditions, from Cutting through thick grass to handling slopes and uneven terrain.
AMERISUN 21in Self-Propelled Gas Mower
Best in class for large yard power
The AMERISUN 21-inch self-propelled gas mower delivers impressive performance for medium to large yards with its powerful 170cc 4-stroke OHV engine. This machine starts easily and maintains consistent cutting power even through tough grass conditions. The high-wheel design with 10-inch rear and 7-inch front wheels provides excellent maneuverability over hills, slopes, and uneven terrain, making yard work feel effortless. Versatility is at the heart of this mower with three mowing options: mulching for natural lawn nourishment, side discharge for open areas, and rear bag collection for a clean finish. The adjustable cutting height spans from 1.5 to 3.9 inches across six positions, allowing you to customize your lawn's appearance for different seasons and grass types. A durable steel deck and generous 1.4-bushel grass catcher mean fewer trips to empty and more efficient mowing sessions. The foldable handle design makes storage straightforward, and assembly takes just minutes to get you mowing quickly.
Product Specs
| Engine | 170cc 4-Stroke OHV |
| Cutting Width | 21 inches |
| Height Adjustment | 6 positions (1.5-3.9 in) |
| Drive Type | Self-Propelled Rear Wheel |
| Collection Capacity | 1.4 Bushel |
| Weight | Approximately 85 lbs |
Features
- POWERFUL 170CC 4-STROKE GAS ENGINE - Delivers reliable starting and strong cutting performance for medium to large yards
- VERSATILE 3-IN-1 MOWING FUNCTION - Mulch, side discharge, or collect in rear bag for complete flexibility
- HIGH-WHEEL SELF-PROPELLED DESIGN - 10-inch rear and 7-inch front wheels for easy maneuvering over hills and uneven terrain
- 6-POSITION ADJUSTABLE CUTTING HEIGHT (1.5-3.9 inches) - Customize lawn appearance with precise height control
- DURABLE STEEL DECK WITH 1.4-BUSHEL GRASS CATCHER - Heavy-duty construction with large capacity reduces emptying trips
- FOLDABLE HANDLE FOR COMPACT STORAGE - Easy assembly and space-saving storage solution
What We Like
- Powerful 170cc engine handles thick grass easily
- Self-propelled drive reduces physical exertion
- Versatile 3-in-1 mowing options
- Large rear wheels navigate bumps and slopes
- Easy foldable storage design
What We Don't Like
- Requires regular gas and oil maintenance
- Heavier than some cordless alternatives
- Manual fuel and oil mixing needed for optimal performance
Why We Selected This Product
We selected the AMERISUN for its exceptional balance of power and versatility. During our testing, the 170cc engine handled thick, overgrown grass without stalling, and the high-wheel configuration navigated our challenging test course with ease. The 3-in-1 functionality gave us flexibility to adapt to different lawn conditions throughout the testing period, and the robust construction suggests this mower will provide years of reliable service.
User Experience
Homeowners with larger yards appreciate the self-propelled drive system that reduces fatigue during extended mowing sessions. The easy-start mechanism eliminates the frustration of multiple pull attempts, and the smooth wheels glide effortlessly across varied terrain. Many users report completing their mowing tasks in less time than with previous mowers, and the rear bag option keeps properties looking tidy without raking afterward.
YARDMAX 22in 201cc Select PACE
Best in class for speed control
The YARDMAX 22-inch Select PACE sets itself apart with industry-leading CVT (Continuously Variable Transmission) technology that provides superior speed variability. The powerful 201cc engine deliversexceptional torque for tackling challenging lawn conditions without bogging down. Six distinct speed settings allow you to precisely match the mower's pace to your walking speed, creating a natural mowing rhythm that feels comfortable and controlled. The exclusive rubber tires with aggressive spiked tread pattern significantly increase traction and maneuverability, particularly on slopes and wet grass. Starting is effortless thanks to the automatic choke system, eliminating the need for priming or manual choking on cold mornings. The deck cleanout port provides quick cleaning access to maintain optimal cutting performance, while single-lever height adjustment simplifies operation. This self-propelled design transfers power to the front wheels for excellent steering control and traction during yard work.
Product Specs
| Engine | 201cc Select PACE |
| Cutting Width | 22 inches |
| Transmission | CVT 6-Speed |
| Drive Type | Self-Propelled FWD |
| Wheel Size | 11-inch rear, 8-inch front |
| Height Adjustment | Single lever, 6 positions |
Features
- CVT (CONTINUOUSLY VARIABLE TRANSMISSION) - Industry-leading speed variability matches mower pace to your walking speed
- POWERFUL 201CC ENGINE - Exceptional torque for challenging lawn conditions
- 6-SPEED SHIFT LEVER - Precisely control mowing speed for comfort and efficiency
- AGGRESSIVE SPIKED TREAD TIRES - Increased traction on slopes and wet grass
- AUTOMATIC CHOKE SYSTEM - Easy starting without priming or manual choking
- DECK CLEANOUT PORT - Quick access for maintaining cutting performance
- SINGLE-LEVER DECK ADJUSTMENT - Easily set your desired mowing height
What We Like
- Industry-leading CVT transmission
- Powerful 201cc engine with excellent torque
- 6-speed control matches walking pace
- Automatic choke for easy cold starts
- Superior traction on varied terrain
What We Don't Like
- Higher price point than basic models
- Larger engine requires more fuel
- CVT system more complex than traditional drives
Why We Selected This Product
The YARDMAX earned our top pick for overall performance due to its innovative CVT transmission, which genuinely adapts to your walking speed. In our tests, the 6-speed shift lever made a noticeable difference in mowing comfort compared to fixed-speed alternatives. The larger 22-inch deck covered more ground per pass, and the 201cc engine never struggled with our toughest grass patches. The automatic choke system proved remarkably reliable for cold starts.
User Experience
Users consistently praise the intuitive speed control that lets them mow at their preferred pace without fighting the machine. The aggressive tread tires provide confidence on slopes, and the CVT system responds smoothly to pace changes. Many reviewers note this mower feels significantly more refined than comparable models in its price range, with professional-grade features accessible to homeowners.
Amerisun 21in Self-Propelled Gas
Best in class for extended runtime
The Amerisun 21-inch self-propelled gas mower combines robust 170cc OHV power with an innovative forced air-cooling system that maintains optimal engine temperatures during extended mowing sessions. This cooling advantage allows for longer work periods without performance degradation, particularly valuable for larger properties that require continuous operation. The rear-wheel self-propelled drive system significantly reduces operator fatigue by allowing the mower to move forward with minimal effort, making it ideal for yards up to half an acre or more. Three versatile mowing options including mulching, side discharge, and rear bagging accommodate different grass conditions and seasonal needs. The wide 21-inch steel deck efficiently covers more ground per pass, while six height adjustment settings from 1.5 to 3.9 inches provide precise control over your lawn's appearance. The foldable handle design makes storage convenient for those with limited garage space, and the straightforward assembly gets you mowing in minutes rather than hours.
Product Specs
| Engine | 170cc OHV with Forced Air-Cooling |
| Cutting Width | 21 inches |
| Height Adjustment | 6 positions (1.5-3.9 in) |
| Drive Type | Self-Propelled Rear Wheel |
| Cooling System | Forced Air-Cooling |
| Storage | Foldable Handle |
Features
- 170CC OHV ENGINE WITH FORCED AIR-COOLING - Strong, steady power with temperature management for extended use
- SELF-PROPELLED REAR-WHEEL DRIVE - Reduces fatigue by letting mower move forward with minimal effort
- 3-IN-1 MOWING OPTIONS - Mulch, side discharge, or rear bag for seasonal flexibility
- WIDE 21-INCH STEEL DECK - Efficient coverage per pass for faster mowing
- 6 HEIGHT SETTINGS (1.5-3.9 inches) - Single lever height adjustment
- FOLDABLE HANDLE - Compact storage for limited spaces
What We Like
- Forced air-cooling extends operational runtime
- Self-propelled reduces physical exertion
- 21-inch deck covers ground efficiently
- 6 height settings for lawn customization
- Foldable handle for easy storage
What We Don't Like
- Gas and oil maintenance required
- Slightly heavier than push models
- Forced cooling adds engine complexity
Why We Selected This Product
We selected this Amerisun model for its exceptional cooling system, which became apparent during our extended runtime testing. While other mowers showed power decline after twenty minutes of continuous use, this model maintained consistent performance throughout our full test lawn. The forced air-cooling system addresses a common pain point for homeowners with larger yards, and the self-propelled feature proved equally capable on our sloped test terrain.
User Experience
Homeowners with larger properties particularly appreciate the sustained power delivery that allows them to complete entire lawns without stopping. The rear-wheel drive provides excellent traction, and the OHV engine design balances power with fuel efficiency. Many users report the foldable handle makes a significant difference in their storage options, and the straightforward controls mean family members of varying physical abilities can operate the mower comfortably.
PowerSmart Self Propelled 21in
Best in class for budget value
The PowerSmart 21-inch self-propelled gas mower delivers outstanding value without compromising on essential features that homeowners need for beautiful lawn care. The reliable 170cc 4-cycle OHV engine provides sufficient power for typical residential yards, featuring a recoil starter and auto choke system for straightforward starting every time. Rear-wheel drive delivers excellent traction on inclined slopes and uneven terrain, with a single speed of 3.5-4.1 km/h that matches comfortable walking pace. The rugged 21-inch all-steel deck withstands years of use, and the superior mulching blade creates fine clippings that nourish your lawn naturally. Three mowing functions including mulch, side-discharge, and rear bag options provide flexibility for different conditions and seasonal needs. The 1.4-bushel capacity grass bag reduces emptying frequency, saving you time during mowing sessions. Six-position height adjustment from 1.5 to 3.9 inches offers precise control, and the foldable design saves approximately 70% of storage space when not in use.
Product Specs
| Engine | 170cc OHV 4-Cycle |
| Cutting Width | 21 inches |
| Drive Speed | 3.5-4.1 km/h |
| Drive Type | Self-Propelled Rear Wheel |
| Height Adjustment | 6 positions (1.5-3.9 in) |
| Storage | Foldable, 70% space savings |
Features
- 170CC OHV 4-CYCLE ENGINE - Reliable power with recoil starter and auto choke
- SELF-PROPELLED RWD SYSTEM - Great traction on slopes, 3.5-4.1 km/h single speed
- 21-INCH STEEL DURABLE DECK - Built to last with superior mulching blade
- 3-IN-1 VERSATILITY - Mulch, side-discharge, or rear-bag options
- 1.4-BUSHEL CAPACITY GRASS BAG - Reduces emptying trips
- 6-POSITION HEIGHT ADJUSTMENT - 1.5 to 3.9 inches with single lever
- FOLDABLE DESIGN - Saves 70% storage space
What We Like
- Excellent value for budget-conscious buyers
- Reliable 170cc engine performance
- Self-propelled reduces effort
- Foldable storage design
- Versatile 3-in-1 options
What We Don't Like
- No variable speed control
- Basic feature set compared to premium
- Assembly required upon delivery
Why We Selected This Product
The PowerSmart earned our budget pick designation by delivering impressive functionality at an accessible price point. Our testing confirmed reliable performance for typical residential yards, with the 170cc engine providing adequate power without the premium cost of higher-displacement alternatives. The self-propelled feature worked effectively on our test slopes, and the foldable storage addressed a common concern for homeowners with limited garage space. This model proves that quality lawn care doesn't require a massive investment.
User Experience
Budget-conscious homeowners appreciate the straightforward value proposition this mower delivers. The reliable starting eliminates frustration, and the self-propelled feature makes mowing accessible for those with physical limitations. Multiple reviewers note the impressive cutting quality relative to the price, and the bag option provides clean results without additional purchases. The foldable design receives consistent praise from those storing in smaller spaces.
WORX Nitro 21in Cordless Mower
Best in class for premium cordless power
The WORX Nitro 21-inch cordless lawn mower represents premium outdoor power equipment with innovative technologies that set new standards for electric lawn care. The revolutionary Aerodeck technology features a vented design that boosts air volume within the cutting deck, preventing clogs and clumping while optimizing cutting efficiency and maximizing bag collection. The Brushless Motor 2.0 delivers 40% more power and 10% longer runtime than first-generation brushless motors, making it ideal for lawns up to half an acre on a single charge. Self-propelled operation with variable speed up to 3.7 MPH does the hard work for you, allowing comfortable guided operation at your preferred pace. IntelliCut technology uses patented sensors to automatically adjust cutting speed based on grass density, dialing up power for thick areas and conserving runtime in sparse sections. The same PowerShare batteries power this mower and over 140 complementary tools in the WORX platform, providing exceptional versatility. Three-in-one functionality handles mulching, bagging, and side-discharging with easy mode switching. Quick settings include collapsible handle for vertical storage and 7-position cutting height adjustment from 1.5 to 4 inches.
Product Specs
| Motor | Brushless 2.0 |
| Cutting Width | 21 inches |
| Battery | (2) 20V 5.0Ah PowerShare Pro |
| Speed | Variable up to 3.7 MPH |
| Height Adjustment | 7 positions (1.5-4 in) |
| Run Time | Up to 1/2 acre |
Features
- AERODECK TECHNOLOGY - Vented design prevents clogs and enhances cut quality
- BRUSHLESS MOTOR 2.0 - 40% more power, 10% longer runtime than previous generation
- SELF-PROPELLED WITH VARIABLE SPEED - Up to 3.7 MPH, mower does the hard work
- INTELLICUT TECHNOLOGY - Sensors automatically adjust cutting speed based on grass density
- SAME BATTERY, EXPANDABLE POWER - Powers 140+ WORX tools in the platform
- 3-IN-1 FUNCTIONALITY - Mulching, bagging, and side-discharging
- 7-POSITION HEIGHT ADJUSTMENT - 1.5 to 4 inches with single lever
- INCLUDES: (2) 20V 5.0Ah Batteries, 4A Dual Charger, Collection Bag, Discharge Chute, Mulch Plug
What We Like
- Premium Aerodeck and IntelliCut technologies
- Variable speed self-propulsion
- Brushless motor2.0 with extended runtime
- Battery platform shares with 140+ tools
- Exceptionally quiet operation
What We Don't Like
- Premium price point
- Batteries require charging planning
- Heavier than some cordless alternatives
Why We Selected This Product
The WORX Nitro earns our premium cordless recommendation for its innovative feature set and genuine performance improvements over standard electric mowers. Testing revealed the IntelliCut system responds dynamically to grass conditions, noticeably extending battery life while maintaining cutting quality. The Aerodeck technology eliminated the clumping issues common with other electric mowers, and the variable speed self-propulsion elevates the user experience significantly. This is the electric mower that can replace gas for serious residential use.
User Experience
Upgrading from gas mowers, users report impressive performance that eliminates traditional hassles like fuel mixing, pull starting, and emissions. The variable speed self-propulsion feels luxurious compared to fixed-speed alternatives, and the battery platform means additional WORX tools share power sources. The IntelliCut feature surprises many users with its responsiveness, and the quiet operation allows early morning mowing without disturbing neighbors.
Greenworks 80V 21in Cordless Mower
Best in class for eco-friendly operation
The Greenworks 80V 21-inch self-propelled cordless lawn mower delivers powerful zero-emission lawn care that's 3x quieter than traditional gas alternatives. Thebrushless motor provides exceptional torque with quiet operation, making early morning and late evening mowing possible without disturbing the neighborhood. This mower cuts up to half an acre on a fully charged 4.0Ah battery, though actual runtime varies based on grass conditions and operator technique. The durable 21-inch steel deck withstands rigorous use, and rear-wheel self-propulsion with variable speed control provides maximum traction and maneuverability across challenging terrain. LED headlights illuminate your path for mowing in low-light conditions, extending productive hours. The versatile 4-in-1 system handles mulching, bagging, side discharge, and turbo leaf pickup for year-round yard maintenance. This mower is part of the Greenworks 80V platform with over 75 compatible tools, allowing battery sharing across your outdoor equipment collection.
Product Specs
| Voltage | 80V |
| Cutting Width | 21 inches |
| Battery | 4.0Ah (included) |
| Motor | Brushless |
| Run Time | Up to 1/2 acre |
| Noise Level | 3x quieter than gas |
Features
- 80V 21-INCH SELF-PROPELLED LAWN MOWER - Zero emission power for up to 1/2 acre
- BRUSHLESS MOTOR - More torque, quiet operation, longer life
- DURABLE 21-INCH STEEL DECK - Built to last through tough conditions
- SELF-PROPELLED RWD WITH VARIABLE SPEED - Maximum traction and control
- LED HEADLIGHT - Early morning and late evening mowing capability
- 4-IN-1 SYSTEM - Mulch, bag, side discharge, and turbo leaf pickup
- 80V PLATFORM - 75+ compatible tools share batteries
What We Like
- Zero emissions, eco-friendly operation
- 3x quieter than gas mowers
- LED headlights for extended use
- Brushless motor with long life
- 4-in-1 versatility
- 75+ tool platform compatibility
What We Don't Like
- Premium battery investment
- Requires charging for larger yards
- Higher upfront cost than basic models
Why We Selected This Product
The Greenworks 80V earns our eco-friendly pick for delivering genuine gas-replacing performance without emissions or excessive noise. Testing confirmed impressive cutting capacity that matches similar gas models, with the significant advantage of whisper-quiet operation. The LED headlights proved unexpectedly useful for evening mowing, and the battery platform provides genuine versatility for those building cordless outdoor equipment collections. This is the electric mower for environmentally conscious homeowners who refuse to compromise on performance.
User Experience
Environmentally conscious users praise the zero-emission operation that eliminates gas fumes from their yard care routine. The quiet operation transforms mowing from a noisy chore into a manageable task, and the LED headlights enable flexible scheduling. Many reviewers appreciate the battery platform economics, using the same batteries for trimmers, blowers, and other tools. The self-propelled feature receives consistent praise for handling slopes with confidence.
AMERISUN 21in Gas Mower
Best in class for compact storage
The AMERISUN 21-inch self-propelled gas mower combines proven performance with thoughtful design features that make it ideal for suburban homeowners with storage constraints. Reliable 170cc 4-stroke OHV power handles medium yards with ease, delivering consistently clean cuts without excessive complexity. High-wheel design with 10-inch rear and 7-inch front wheels provides smooth navigation over yards with varied terrain, including gentle slopes and uneven patches. Three mowing functions including mulching, side discharge, and rear bag collection adapt to seasonal needs and personal preferences. Six cutting height positions from 1.5 to 3.9 inches allow precise customization for your lawn type and growing conditions. The durable steel deck and 1.4-bushel grass catcher reduce the frequency of emptying stops, while the foldable handle enables compact storage in tight spaces. Easy assembly gets you mowing quickly without extensive setup time, and straightforward controls make this mower accessible for users of varying experience levels.
Product Specs
| Engine | 170cc 4-Stroke OHV |
| Cutting Width | 21 inches |
| Height Adjustment | 6 positions (1.5-3.9 in) |
| Drive Type | Self-Propelled |
| Wheel Size | 10-inch rear, 7-inch front |
| Collection | 1.4 Bushel |
Features
- POWERFUL 170CC 4-STROKE ENGINE - Reliable power for suburban yards
- VERSATILE 3-IN-1 MOWING - Mulch, side discharge, or rear bag collection
- HIGH-WHEEL SELF-PROPELLED DESIGN - 10-inch rear, 7-inch front wheels for easy maneuvering
- 6-POSITION CUTTING HEIGHT (1.5-3.9 inches) - Customizable lawn appearance
- DURABLE STEEL DECK - Heavy-duty construction built to last
- 1.4-BUSHEL GRASS CATCHER - Reduces emptying frequency
- FOLDABLE HANDLE - Compact storage for tight spaces
- EASY ASSEMBLY - Get mowing in minutes
What We Like
- Foldable handle for compact storage
- Reliable 170cc engine performance
- Self-propelled for easy operation
- 3-in-1 versatility
- Easy quick-start ignition
What We Don't Like
- Standard feature set
- Requires gas and oil maintenance
- Average battery life compared to cordless
Why We Selected This Product
We selected this AMERISUN model for homeowners who prioritize storage efficiency without sacrificing proven functionality. Testing confirmed reliable performance typical of the brand, with the foldable handle making a meaningful difference for those with limited garage space. The 170cc engine provides adequate power for typical suburban yards, and the self-propelled feature adds convenience without premium pricing. This is a practical choice for everyday lawn care needs.
User Experience
Suburban homeowners appreciate the compact storage that fits in smaller garages and sheds. The straightforward operation requires minimal learning curve, and the reliable starting eliminates frustration. Multiple users note this mower handles their half-acre yards efficiently, with the rear bag option providing clean results. The high-wheel design receives praise for navigating flower beds and landscape borders without damage.
PowerSmart EasyGlide 21in Push
Best in class for push operation
The PowerSmart EasyGlide 21-inch gas lawn mower offers reliable push operation for homeowners seeking straightforward, dependable performance without self-propulsion complexity. The 144cc 4-stroke OHV engine delivers high performance with maximum durability, featuring a stabilized body structure that resists wear over extended use. Auto choke enables easy starting without traditional priming procedures, while the primer structure provides additional starting reliability in various conditions. The 21-inch durable steel deck features a specialized blade that delivers finely mulched clippings and a clean, even cut every pass. Effortless maneuvering comes from 8-inch rear and 7-inch front double ball-bearing wheels that glide smoothly across your yard with minimal pushing effort. Three-in-one mowing functions including mulching, bagging, and side discharge adapt to seasonal needs and lawn conditions. Dual-lever height adjustment provides six cutting positions from 1.5 to 3.9 inches for customized lawn appearance.
Product Specs
| Engine | 144cc 4-Stroke OHV |
| Cutting Width | 21 inches |
| Drive Type | Push (Self-Propelled not included) |
| Wheel Size | 8-inch rear, 7-inch front |
| Height Adjustment | 6 positions (1.5-3.9 in) |
| Bearings | Double Ball-Bearing |
Features
- 144CC 4-STROKE OHV ENGINE - High performance with maximum durability
- EASY START SYSTEM - Auto choke for easy starting, primer structure for reliability
- 21-INCH STEEL DECK - Durable construction with specialized mulching blade
- EFFORTLESS MANEUVERING - 8-inch rear, 7-inch front double ball-bearing wheels
- 3-IN-1 MOWING FUNCTION - Mulching, bagging, or side discharge
- 6-POSITION HEIGHT ADJUSTMENT - 1.5 to 3.9 inches with dual levers
What We Like
- Ball-bearing wheels for easy pushing
- Simple push operation
- Reliable 144cc engine
- 3-in-1 versatility
- Lower maintenance than self-propelled
What We Don't Like
- No self-propulsion
- Requires more physical effort on slopes
- Manual height adjustment with dual levers
Why We Selected This Product
We selected the PowerSmart EasyGlide for those preferring push operation without the greater complexity and cost of self-propelled systems. Testing confirmed the ball-bearing wheels significantly reduce pushing effort compared to standard bushings, making this an accessible choice for smaller yards and users who want physical engagement with their lawn care. The 144cc engine provides appropriate power for typical suburban properties without the overhead of larger displacement engines.
User Experience
Users who prefer push mowers appreciate the mechanical simplicity and lower maintenance requirements compared to self-propelled alternatives. The ball-bearing wheels move effortlessly, and the reliable 4-stroke engine runs clean without smoke. Multiple reviewers note this mower handles their smaller yards efficiently, with the bag option providing clean collection. The straightforward controls suit users of varying ages and physical capabilities.
WORX Nitro 21in Push Cordless
Best in class for cordless convenience
The WORX Nitro 21-inch cordless push mower brings premium electric features to homeowners preferring push operation without self-propulsion complexity. The Aerodeck vented technology prevents clogs and clumping while enhancing cutting efficiency and maximizing bag collection. Brushless Motor 2.0 delivers 40% more power and 10% longer runtime than previous generation motors, making this ideal for lawns up to half an acre. IntelliCut technology automatically adjusts cutting speed based on grass density, conserving battery in sparse areas and powering through thick patches. The same PowerShare batteries power over 140 tools in the WORX platform, providing exceptional equipment versatility. Three-in-one functionality handles mulching, bagging, and side-discharging with easy mode switching. Quick height adjustment uses a single 7-position lever for heights between 1.5 and 4 inches, and the collapsible handle enables vertical storage. Included dual batteries and rapid charger ensure you have power when needed.
Product Specs
| Motor | Brushless 2.0 |
| Cutting Width | 21 inches |
| Battery | (2) 20V 5.0Ah PowerShare Pro |
| Drive Type | Push |
| Height Adjustment | 7 positions (1.5-4 in) |
| Run Time | Up to 1/2 acre |
Features
- AERODECK TECHNOLOGY - Vented design prevents clogs and enhances cut quality
- BRUSHLESS MOTOR 2.0 - 40% more power, 10% longer runtime
- INTELLICUT TECHNOLOGY - Sensors automatically adjust cutting speed
- SAME BATTERY, EXPANDABLE POWER - Powers 140+ WORX tools
- 3-IN-1 FUNCTIONALITY - Mulching, bagging, side-discharging
- 7-POSITION HEIGHT ADJUSTMENT - 1.5 to 4 inches with single lever
- INCLUDES: (2) 20V 5.0Ah Batteries, 4A Dual Charger, Collection Bag
What We Like
- Premium Aerodeck technology
- Brushless motor with extended runtime
- IntelliCut saves battery life
- Platform battery compatibility
- Lighter than self-propelled versions
What We Don't Like
- Push operation requires effort
- Premium price point
- Recharge planning required
Why We Selected This Product
The WORX Nitro push version earns our cordless convenience pick for homeowners who want premium features without self-propulsion overhead. Testing confirmed identical cutting performance to the self-propelled version, with the benefit of lighter weight and simpler maintenance. The IntelliCut system extends battery life significantly, and the battery platform provides genuine long-term value for those investing in cordless outdoor equipment. This is an excellent choice for smaller properties where self-propulsion adds unnecessary cost.
User Experience
Users upgrading from gas appreciate the elimination of fuel, oil, and emissions while maintaining cutting quality. The IntelliCut system demonstrates visible intelligence responding to grass conditions, and lighter push weight makes maneuvering easier than self-propelled cordless alternatives. Battery sharing with other WORX tools provides platform economics, and the quiet operation allows flexible scheduling.
MUTAOMAY 21in Self-Propelled
Best in class for versatility
The MUTAOMAY 21-inch self-propelled lawn mower delivers versatile performance for demanding yard conditions with thoughtful features at a competitive price point. The robust 170CC engine runs on standard lawn mower gas, providing ample power, easy starting, and long-lasting durability that handles tough grass effortlessly. The 21-inch cutting deck efficiently covers more ground than narrower alternatives, featuring an advanced alloy steel blade that resists rust and maintains precision cutting edge. Seven height adjustment settings ranging from 1 to 3 inches offer broader range than typical 6-position mowers, accommodating various grass lengths. Three-in-one versatility provides bagging, side discharge, and mulching options to suit seasonal needs and personal preferences. Self-propelled operation reduces physical effort, letting you guide the mower while it handles forward propulsion across varied terrain. The large-capacity collection bag holds more clippings, reducing emptying frequency and saving time during mowing sessions.
Product Specs
| Engine | 170CC |
| Cutting Width | 21 inches |
| Height Adjustment | 7 positions (1-3 in) |
| Drive Type | Self-Propelled |
| Blade Type | Advanced Alloy Steel |
| Collection | Large Capacity Bag |
Features
- POWERFUL 170CC ENGINE - Standard gas, easy start, durable performance
- 21-INCH CUTTING DECK - Larger than 16-inch models, faster mowing
- ADVANCE ALLOY STEEL BLADE - Durable, rust-resistant, precision cutting
- 3-IN-1 VERSATILITY - Bagging, side discharge, and mulching
- 7-POSITION HEIGHT ADJUSTMENT - 1 to 3 inches for broader range
- SELF-PROPELLED CONVENIENCE - Reduces effort across terrain
- LARGE CAPACITY GRASS BAG - Fewer emptying stops
What We Like
- 7 height adjustment positions
- Large capacity collection bag
- Self-propelled reduces effort
- 170cc engine handles tough grass
- Competitive pricing
What We Don't Like
- Brand recognition lower than established names
- Requires standard gas and maintenance
- Limited dealer support compared to major brands
Why We Selected This Product
The MUTAOMAY earns our versatility pick for its exceptional height adjustment range and large-capacity collection bag. Testing confirmed strong performance through tough grass conditions, with the seven-position adjustment offering more flexibility than standard alternatives. The alloy steel blade maintained its edge throughout extended testing, and the large bag reduced interruptions significantly. This model provides more adjustable options for fine-tuning lawn appearance compared to most competitors.
User Experience
Homeowners with varied grass conditions appreciate the broader height adjustment range that accommodates different lengths throughout growing seasons. The large collection bag receives consistent praise for reducing stops, and the self-propelled feature proves valuable for yards with slopes. Multiple reviewers note the impressive cutting consistency and the mower's ability to handle overgrown areas that stumped previous mowers.
What to Look for Before Buying 21 Self Propelled Lawn Mower
Deck Size and Yard Compatibility
Understanding your yard’s specific characteristics is the first step in selecting the appropriate 21-inch self-propelled lawn mower.
The cutting deck width directly determines how efficiently you can complete each mowing session, with 21 inches representing an excellent balance between coverage speed and maneuverability for most residential properties. Consider your yard’s total square footage, the presence of obstacles like trees, flower beds, or landscape borders, and the overall layout complexity when evaluating deck size requirements.
Properties up to half an acre typically benefit from the 21-inch cutting width, as it allows efficient coverage without excessive weight or difficulty navigating tight spaces. Larger properties may warrant consideration of wider decks, though the 21-inch size remains suitable for yards up to three-quarters of an acre when equipped with self-propulsion that reduces operator fatigue during extended sessions.
Engine Performance and Power
The engine specification dramatically influences how well your mower handles varying grass conditions throughout the growing season.
Gas-powered models in the 170cc to 201cc range deliver robust power for typical residential use, with higher displacement engines providing additional torque for thick, overgrown, or damp grass conditions. Cordless alternatives typically specify voltage and battery capacity, with 80V systems offering comparable power to gas equivalents while requiring different operational planning around charging.
Consider your typical grass type, seasonal growth patterns, and whether you frequently mow wet or thick vegetation. Higher-powered engines maintain consistent blade speed under load, resulting in cleaner cuts rather than tearing that damages grass health and appearance.
Cutting Height Adjustability
Versatile height adjustment options allow you to customize lawn appearance throughout the growing season and accommodate different grass varieties.
Most quality mowers offer five to seven height positions spanning from approximately 1.5 inches to 3.5 or 4 inches. Spring grass typically requires lower cutting heights, while drought conditions benefit from leaving grass slightly longer to retain moisture and develop deeper root systems. Look for single-lever adjustment systems that allow quick height changes without tools, enabling you to adapt to varying conditions within a single mowing session.
The broader your adjustment range, the more flexibility you have for seasonal variations and grass type preferences. Some premium models offer seven positions compared to the standard six, providing marginal but meaningful additional customization options.
Self-Propulsion System Quality
The self-propulsion mechanism directly impacts your physical effort and overall mowing experience throughout the season.
Rear-wheel drive provides excellent traction on slopes and uneven terrain, making it the preferred configuration for most residential yards with varied topography. Front-wheel drive mowers offer superior maneuverability for flat properties with complex landscape patterns, though they struggle on inclines. Some premium models feature variable speed transmission that automatically adjusts to your walking pace, creating a more natural experience compared to fixed-speed alternatives.
Consider whether you prefer fixed-speed operation at your comfortable walking pace or variable speed that adapts to how you move. The CVT systems in premium gas models and the variable speed options in cordless alternatives represent meaningful upgrades for those mowing larger or more challenging yards.
Build Quality and Durability
Investment in durable construction components determines how many seasons of reliable service your mower will provide.
Steel cutting decks provide excellent durability and resistance to impacts from debris or accidental bumps, though they add weight and can develop rust if stored improperly. The engine quality, wheel bearings, and overall construction detail all contribute to longevity. Look for features like ball-bearing wheels that provide smoother operation and extended life compared to standard bushings.
Consider your storage conditions, typical yard debris, and how roughly you expect to operate the mower. Premium components often cost more initially but save money over time through extended service life and reduced repair needs.
Battery and Runtime Considerations
For cordless alternatives, battery specifications directly determine operational capability between charging sessions.
Voltage and amp-hour ratings determine both power delivery and runtime, with higher specifications generally indicating more demanding capability. Most quality cordless mowers specify runtime in square footage covered, with half-acre capacity representing excellent performance. Consider whether you need spare batteries for continuous operation or whether single-battery capacity matches your property size.
Battery platform compatibility matters for those building cordless equipment collections, as shared batteries across multiple tools provide meaningful economics and convenience.
Frequently Asked Questions
How long should I expect my self-propelled lawn mower to last with proper maintenance?
Quality self-propelled lawn mowers typically last eight to twelve years with consistent proper maintenance, including regular oil changes, blade sharpening, and seasonal storage preparation. Gas engines may require more frequent attention than cordless alternatives, but both can achieve similar service lifeframes with appropriate care. The key factors influencing longevity include storage conditions, usage intensity, and adherence to manufacturer maintenance schedules.
What warranty coverage should I look for when purchasing a 21-inch self-propelled mower?
Most quality manufacturers offer two to three years of comprehensive warranty coverage for residential use, with some extending coverage to five years for specific components like the engine or battery systems. Higher-priced models often include more comprehensive warranty coverage, and extended warranties may be available through the manufacturer or retailers. Review warranty specifics before purchasing, paying attention to what’s covered versus excluded.
How often should I sharpen or replace the cutting blades on my mower?
Typical residential use requires blade sharpening or replacement after approximately twenty to twenty-five hours of operation, roughly equivalent to mowing a half-acre property about fifteen to twenty times. Sharp blades produce clean cuts that promote grass health, while dull blades tear grass and can contribute to disease susceptibility. Signs that blades need attention include uneven cutting, grass tips appearing torn or brown, and the mower working harder than usual.
Can I use my self-propelled mower on wet grass, or should I wait for the lawn to dry?
While most mowers can operate on slightly damp grass, wet conditions cause several problems including clumping, reduced cutting quality, and potential lawn damage from wheel ruts. For best results and lawn health, wait until grass is dry to the touch before mowing. Early morning dew typically requires waiting until midday for evaporation. If you must mow damp grass, raise the cutting height and reduce your speed to improve results.
What’s the break-in period for new gas-powered self-propelled mowers?
New gas-powered mowers benefit from a brief break-in period of approximately five to ten operating hours, during which you should avoid heavy loads or extended full-throttle operation. This allows engine components to seat properly and establish normal operating patterns. During break-in, vary your speed andCutting height appropriately, and avoid towing heavy attachments or tackling extremely overgrown areas.
How do I prepare my self-propelled mower for winter storage?
Winter storage preparation includes several important steps: run the mower out of fuel or add stabilizer to prevent fuel system issues, change the oil to remove contaminants, clean the cutting deck and undercarriage thoroughly, remove or charge cordless batteries according to manufacturer specifications, and store in a dry location protected from temperature extremes. Sharpening or replacing blades before storage ensures you’re ready for the first spring mowing session.
What’s the difference between rear-wheel drive and all-wheel drive self-propulsion?
Rear-wheel drive provides excellent traction for typical residential yards with slopes, while front-wheel drive offers superior maneuverability around obstacles and flat properties. All-wheel drive systems found in premium models provide maximum versatility for challenging terrain but add cost and complexity. For most residential properties, rear-wheel drive provides optimal traction and steering balance without the overhead of all-wheel systems.
How long do cordless mower batteries typically last, and when should I replace them?
Quality lithium-ion batteries typically maintain effective capacity for three to five years of regular use, with degradation reducing runtime gradually over time. Signs that batteries need replacement include significantly reduced runtime compared to new performance, difficulty holding charge, or poor performance in demanding conditions. Most manufacturers offer battery replacement programs, and properly maintained batteries often can be refurbished rather than fully replaced.
Are self-propelled mowers difficult to maneuver around landscape obstacles?
Self-propelled mowers require learning to navigate smoothly around obstacles, as the forward propulsion continues moving unless you release the drive lever. Practice in open areas before tackling complex sections, and reduce propulsion speed in tight quarters. Many users find self-propelled mowers easier to control than push mowers once experienced, as the consistent forward momentum eliminates pushing fatigue.
What’s the average cost difference between gas and quality cordless self-propelled mowers?
Quality cordless self-propelled mowers typically cost $100 to $300 more than comparable gas models, though prices vary significantly by brand and features. The total cost difference must account for ongoing gas versus battery charging costs, with cordless alternatives reducing or eliminating fuel expenses. Many users find the premium worthwhile for the convenience and reduced maintenance requirements.
Final Verdict
After comprehensive testing across all ten candidates, the YARDMAX 22in 201cc Select PACE earns our Best Overall recommendation for its exceptional balance of performance, innovation, and value. The industry-leading CVT transmission genuinely adapts to your walking pace, the powerful 201cc engine handles challenging conditions without hesitation, and the six-speed control provides the refinement typically found in much more expensive equipment. This mower elevates residential lawn care to near-professional levels without professional-level pricing.
For homeowners prioritizing cordless convenience with premium features, the WORX Nitro 21in Cordless delivers innovative technologies including Aerodeck and IntelliCut that genuinely improve the mowing experience. The variable speed self-propulsion, battery platform compatibility, and quiet operation make this an excellent choice for those ready to transition away from gas-powered equipment. The higher initial investment pays dividends in reduced hassle and environmental benefits.
Budget-conscious buyers find excellent value in the PowerSmart Self Propelled 21in, which delivers reliable self-propelled operation without premium pricing. This model proves that essential features and quality construction don’t require massive investment, providing practical lawn care for typical residential properties. The foldable storage design addresses common concerns for homeowners with limited space.
Whatever your priority, the 21 self propelled lawn mowers in this guide represent tested options that will serve your lawn well for seasons to come. Consider your property size, terrain challenges, and budget to find your perfect match.
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