If your lawn is a carpet of thick, heavy grass that chokes smaller mowers and leaves them struggling, you know the frustration all too well. Dense turf demands a mower with real muscle, precise blade engagement, and smart power management to prevent stalling or uneven cuts. That is where WORX shines. In this guide, we break down the top WORX models that excel at conquering dense grass, from nimble push mowers for compact yards to self-propelled workhorses for larger lots.
We evaluated each model based on motor strength, cutting efficiency, and features like Intellicut and brushless technology that automatically adapt to thick grass. Whether you manage a small patch of Bermuda or a sprawling field of tall fescue, you will find a WORX mower that handles the load. For more insights on specific grass types, check our guides on Kentucky bluegrass and tall fescue.
Pros
- Versatile 3-in-1 design eliminates the need for multiple tools, saving money and storage space.
- Automatic line feed reduces downtime and keeps you working without interruption.
- Adjustable handle and head allow a custom fit for comfortable use in various positions.
- Lightweight and easy to handle, even for extended periods.
- Battery compatibility with a wide range of Worx tools adds long-term value.
Cons
- Battery and charger are not included, requiring an additional purchase for first-time users.
- The mini mower function is best suited for small patches, not a full-size lawn.
- Fixed speed operation may not appeal to users who prefer variable speed control for delicate trimming.
The Worx WG170.9 is a 3-in-1 cordless tool that combines a string trimmer, lawn edger, and mini mower into one lightweight package. It is designed for homeowners with small to medium yards who want to simplify their lawn care routine without investing in multiple machines.
Standout features include Command Feed technology, which lets you advance trimmer line at the push of a button, eliminating the need to stop and manually bump the head. The adjustable handle offers seven positions, and the rotating head has six settings, making it easy to reach under bushes, along fences, and around flower beds. The 12-inch cutting width and 7600 RPM motor provide ample power for most residential trimming and edging tasks.
Build quality is solid for a cordless tool in this price range. The materials feel durable, and the quick-change mechanism between trimmer, edger, and mower is intuitive. At 4.6 pounds, the tool is light enough for one-handed use when trimming, and the included edger wheels add stability for straight-line edging. The battery is shared with Worx's Power Share family, so if you already own Worx 20V tools, you can use the same battery.
One drawback is that the battery and charger are sold separately, which increases the initial investment for new buyers. Also, the mini mower function works best on small, level patches of grass and is not a substitute for a full-size mower. Additionally, the fixed-speed trigger may not suit those who prefer variable speed for delicate trimming near plants.
Overall, the Worx WG170.9 offers excellent versatility and convenience for its price. It is a smart choice for anyone looking to consolidate their lawn tools and reduce clutter, as long as they are comfortable with the battery not being included and have realistic expectations for the mini mower function.
Pros
- Lightweight and easy to push and maneuver, even on slopes
- Powerful brushless motor with long runtime and durability
- Cut-to-Edge design minimizes manual trimming
- Single lever height adjustment with 6 positions for different grass types
- Battery charge indicator keeps you informed of remaining power
Cons
- 17-inch cutting width is narrower than some competitors, requiring more passes on larger lawns
- Not self-propelled, so you must push it manually
- Batteries may not be sufficient for lawns larger than 1/4 acre without additional packs
The WORX WG745 is a 40V cordless lawn mower designed for homeowners with small to midsize yards up to 1/4 acre. It combines the convenience of battery power with the performance of a brushless motor, making it a compelling alternative to gas mowers for those who value low maintenance and quiet operation.
Standout features include the brushless motor 2.0, which offers 40% higher cutting power and longer life than previous generations. IntelliCut technology automatically adjusts cutting speed based on grass density, optimizing runtime and ensuring a clean cut even in thick patches. The 2-in-1 system lets you mulch clippings for fertilizer or bag them for a tidy lawn.
Design and build quality are impressive for the price. At only 40 pounds, it is one of the lightest mowers in its class, and the cut-to-edge deck allows you to mow right up to borders. The collapsible handles and vertical storage option are great space savers in small sheds or garages. The single lever height adjustment offers six positions from 1 to 3 inches.
Potential drawbacks include a 17-inch cutting width, which is narrower than many 20-21 inch models, meaning more passes on larger lawns. It is not self-propelled, so you will need to push it yourself. While the included batteries cover 1/4 acre, larger yards may require purchasing an extra battery pack for uninterrupted mowing.
Overall, the WORX WG745 is an excellent choice for homeowners seeking a lightweight, efficient, and easy-to-store cordless mower. It delivers strong performance for small lawns, and the brushless motor ensures years of reliable service. If your yard is under 1/4 acre and you want to ditch gas and cords, this mower is a smart investment.
Pros
- No boundary wire or local antenna required for precise navigation
- Vision AI obstacle avoidance and cut-to-edge brushes reduce manual trimming
- Unlimited mowing zones, no-go areas, and four precision patterns via app
- V-SLAM sensor fusion keeps navigation reliable in shaded or partially covered areas
- RadioLink extends control beyond standard Wi-Fi range for larger lawns
Cons
- Designed for up to 1/4 acre lawns, so it is not suitable for larger yards.
- Full feature set depends on the app and a stable network connection during setup and operation.
- As a newer release, long-term field performance is not yet widely documented.
The WORX Wire-Free Robot Lawn Mower is designed for homeowners with up to 1/4 acre of grass who want precise, hands-off mowing without the hassle of laying boundary wire. It replaces perimeter cables with RTK Cloud positioning and Vision AI, so the robot learns your lawn, plans efficient routes, and returns to its charging station on its own.
In real-world use, the standout combination of centimeter-level RTK accuracy and V-SLAM sensor fusion keeps navigation stable in both open yards and shaded areas. Vision AI also recognizes common obstacles and border types, helping the mower avoid toys, flower beds, and other objects while cutting closer to edges using wheel brushes and cut-to-edge logic.
The app adds a high level of control: you can create unlimited mowing zones, set no-go areas, customize paths, and choose from Parallel, Checkerboard, Diamond, or Natural patterns. RadioLink connectivity extends communication beyond typical Wi-Fi range, which is useful for larger properties and hard-to-reach corners of the yard.
Build quality appears solid, with a two-wheel driver, durable brushes, spare blades, and a charging station included. The main drawbacks are the 1/4 acre size limit and the need for a smartphone for full setup and control. Since this is a new release, long-term reliability data is still limited, so it is best suited for early adopters who value advanced navigation and convenience.
Overall, the WORX robot mower offers a wire-free, app-driven mowing experience that is hard to match at this level of technology. For homeowners with a smaller lawn who want clean stripes, obstacle avoidance, and minimal setup, it is a compelling choice.
Color: Black/Orange; Size: Up to 1/4 Acre; Dimensions: 22.7 x 18.1 x 11.3 inches; Weight: 39.2 pounds.
Navigation: RTK Cloud precision with Vision AI and V-SLAM sensor fusion; Obstacle avoidance via neural processing; Connectivity: Bluetooth, Wi-Fi, and RadioLink.
In the box: Vision Cloud two-wheel driver, wheel brushes, 6 spare blades, charging station, other accessories, and product guide.
Pros
- Lightweight and easy to maneuver, even on slopes
- Quiet operation reduces noise disturbance for neighbors
- Intellicut sensor optimizes power and extends battery runtime
- Compact design allows access to narrow areas and easy storage
- Versatile bagging and mulching options for lawn care flexibility
Cons
- Only suitable for small lawns up to 1/8 acre per charge
- Batteries may require recharging for larger or thicker grass areas
- 14-inch deck is narrow for medium to large lawns
The WORX WG779 is a cordless electric lawn mower designed for homeowners with small lawns up to 1/8 acre. It combines 40V power with a lightweight, compact build to make mowing easy and efficient. This mower is ideal for those who want a quiet, battery-powered alternative to gas models without sacrificing performance.
Standout features include Intellicut sensor technology, which automatically adjusts the cutting speed based on grass density. This means the mower runs faster in thick grass and slows down in thinner areas, saving battery power. The two included 20V 4.0Ah batteries provide ample runtime for typical small lawns, and the dual charger ensures quick recharging.
Design and build quality are impressive for the price. At just under 30 pounds, the mower is easy to push and maneuver around obstacles. The 14-inch deck fits through narrow gates and along flower beds. The collapsible handle and onboard carry handle make storage and transport simple. The 6-position height adjustment lever lets you quickly change cutting height from 1.5 to 3.5 inches.
Potential drawbacks include the limited cutting width of 14 inches, which may require more passes on larger lawns. Additionally, while the batteries are sufficient for one session, users with very thick or overgrown grass may need to recharge mid-job. The collection bag is on the smaller side at 0.85 bushels, but it has a full-bag indicator to prevent overflow.
Overall, the WORX WG779 is a solid choice for small-yard owners who prioritize convenience, quiet operation, and ease of use. Its Intellicut technology and PowerShare battery platform add value, and the lightweight design makes it a joy to operate. If your lawn is under 1/8 acre, this mower is a great investment.
Product Dimensions: 50.3 x 15.3 x 37.3 inches
Weight: 29.13 pounds
Voltage: 40V (two 20V batteries)
Deck Width: 14 inches
Cutting Height: 1.5 to 3.5 inches (6 positions)
Battery: 2 x 4.0Ah PowerShare
Charger: Dual charger included
Collection Bag Capacity: 0.85 bushels
Noise Level: 87.8 dB
Color: Black and Orange
Pros
- Cut-to-edge design eliminates most hand trimming along borders.
- Brushless motor provides longer runtime and greater efficiency.
- Lightweight and compact for easy storage and maneuverability.
- Single-lever height adjustment is quick and tool-free.
- Battery system shares power with other Worx tools.
Cons
- 20V battery may not provide enough runtime for larger lawns without spare batteries.
- 14-inch cutting deck is narrow, requiring more passes on medium-sized lawns.
- No self-propelled feature; manual push only.
The Worx WG733.1 is a 20V cordless lawn mower designed for homeowners with small to medium-sized yards who value precision and ease of use. Its 14-inch cutting deck and compact form factor make it ideal for navigating tight spaces, flower beds, and garden borders where larger mowers struggle.
One standout feature is the cut-to-edge design, which allows the mower to trim grass right up to fences and edging without leaving a strip behind. This reduces the need for a separate string trimmer, saving time and effort. The 2-in-1 capability lets you choose between bagging clippings for a clean look or mulching to return nutrients to the soil.
The brushless motor is a key upgrade over brushed alternatives, providing longer runtime and better efficiency. The 6-position single-lever height adjustment (1 to 3 inches) lets you quickly adapt to different grass conditions. At 21.7 pounds, the mower is lightweight and easy to push, though it is not self-propelled.
Potential drawbacks include the 20V battery's runtime, which may be insufficient for larger lawns without an additional battery. The 14-inch width also means more passes on medium-sized areas. However, for its target audience, these trade-offs are acceptable given the mower's precision and portability.
Overall, the Worx WG733.1 is a reliable choice for small-lot homeowners who want a cordless mower that can edge closely and store easily. It offers good value with its Power Share battery system and brushless motor, making it a smart addition to any lawn care routine.
Pros
- Powerful brushless motor with extended runtime compared to older models.
- Innovative Aerodeck design effectively prevents grass clumping and clogging.
- IntelliCut optimizes battery usage by adjusting power to grass thickness.
- Versatile 3-in-1 mowing options: mulching, bagging, side-discharge.
- Interchangeable batteries compatible with a wide range of WORX tools.
Cons
- Not self-propelled, requiring physical effort to push on sloped or uneven terrain.
- Relies on two 20V batteries instead of a single 40V, which may mean swapping batteries more frequently.
- As a new model with zero reviews, performance in real-world conditions is unverified.
The Worx WG752 cordless lawn mower is designed for homeowners with lawns up to half an acre who want the convenience of battery power without sacrificing cutting performance. This 21-inch walk-behind mower features a brushless motor 2.0 and innovative Aerodeck technology to deliver efficient, clog-free cuts across various grass conditions.
Standout features include IntelliCut, which automatically adjusts motor speed in thick grass to maintain power, and the Aerodeck that increases airflow to prevent clumping. In practice, this means fewer passes and less time spent clearing debris from the deck. The included two 20V 5Ah PowerShare Pro batteries provide solid runtime, and the 4A dual charger gets you back to work quickly.
Build quality is robust with a 55.6-pound weight that feels stable but may be heavy for some users. The collapsible handle and vertical storage design are thoughtful for compact spaces. Height adjustment via a single lever (1.5 to 4 inches) is straightforward, and switching between mulching, bagging, and side-discharge is tool-free.
Potential drawbacks include the lack of self-propulsion, which can make mowing slopes tiring, and the reliance on two 20V batteries rather than a single higher-voltage pack. Additionally, as a newly released model with no customer reviews yet, long-term reliability is unclear.
Overall, the Worx WG752 offers a compelling package of power, efficiency, and versatility for cordless mower buyers. If you value innovative features like Aerodeck and IntelliCut and already own WORX PowerShare tools, this mower is a strong choice for medium-sized lawns.
Pros
- Powerful brushless motor with extended runtime for thick weeds
- Three tools in one saves money and storage space
- Easy push-button line feed eliminates bumping
- Ergonomic adjustable handle and telescopic shaft reduce fatigue
- Wheeled edging guide ensures clean, straight edges
Cons
- 20V system may lack power for very large or dense lawns compared to 40V/80V models
- Zero reviews available at time of analysis, making long-term reliability unclear
- Battery and charger included, but extra battery may be needed for larger yards
The WORX WG173 is a 20V cordless 3-in-1 trimmer, edger, and mini mower designed for homeowners who want a lightweight, battery-powered solution without sacrificing performance. It's ideal for small to medium yards, especially those with varied terrain and tight spaces around gardens, sidewalks, and flower beds.
Its standout feature is the brushless motor paired with a 4.0Ah battery, which delivers gas-like torque through thick weeds while offering 30% more runtime and 2x the cutting efficiency of brushed motors. The 13-inch dual-line head covers more ground quickly, and the electronic push-button line feed lets you advance string instantly without stopping or bumping — a real time-saver.
The 3-in-1 versatility is backed by a 90° pivoting head that adapts to slopes and uneven ground, plus dual support wheels for precise edging along driveways and patios. The integrated flower guard protects your plants, and the adjustable handle and telescopic shaft ensure a comfortable fit for users of different heights. When done, the tool collapses for compact storage.
Potential drawbacks: the 20V system may not have the sustained power for very large or overgrown lawns compared to higher-voltage models, and there are currently no user reviews to gauge long-term durability. Also, while the included battery is good for typical use, larger yards may require a spare battery.
Overall, the WORX WG173 offers excellent value as a versatile, easy-to-use cordless trimmer that simplifies yard maintenance. If you value convenience, adjustable ergonomics, and the ability to trim, edge, and mini-mow with one tool, this is a strong choice — just consider your yard size and power needs.
Buying Guide: What to Look for in a WORX Mower for Dense Grass
Motor Power and Brushless Technology
Dense grass requires consistent torque to cut cleanly without bogging down. WORX brushless motors deliver up to 40% more cutting power than standard brushed motors, along with longer runtime and greater durability. Models with the Brushless Motor 2.0, like the Worx Cordless Lawn Mower (WG745 and WG760), provide the extra bite needed to slice through thick Bermuda or St. Augustine grass without hiccups.
Brushless designs also reduce heat buildup and wear, making them ideal for regular heavy use. When you are mowing thick turf week after week, investing in a brushless model pays off in reliability and performance.
Intellicut Technology: Automatic Power Adjustment
WORX Intellicut is a patented sensor system that detects grass density and automatically adjusts the cutting speed. In dense patches, the mower increases power to maintain a clean cut; in lighter areas, it reduces speed to save battery. This feature is a game-changer for uneven lawns with both thick and thin spots. Models like the WORX Cordless Lawn Mower WG779 (40V) and WG745 use Intellicut to optimize performance and runtime, ensuring you do not run out of juice mid-lawn.
For yards with mixed turf types or varying growth, Intellicut ensures every pass is efficient. Check our Bermuda grass guide for more on handling warm-season dense grasses.
Deck Size and Cut-to-Edge Design
A wider deck cuts more grass per pass, but in dense grass, a too-wide deck can struggle with power distribution. WORX offers 14-inch, 17-inch, and 21-inch decks. For dense grass on smaller lots (up to 1/8 acre), a 14-inch model like the Worx Cordless Lawn Mower WG735 or WG733.1 provides agility and enough power. For larger areas up to 1/2 acre, the 21-inch self-propelled models (WG760 and WG752) offer superior coverage and torque.
Cut-to-edge deck designs, featured on many WORX models, allow you to mow right up to fences and flower beds, reducing the need for trimming. This is particularly useful in dense grass where string trimmers may struggle.
Battery Capacity and Runtime
Dense grass draws more current, so battery capacity matters. WORX uses 20V and 40V battery systems. For heavy grass, 40V models with 4.0Ah or 5.0Ah batteries (like the WG745, WG779, WG760) provide ample runtime, often handling up to 1/4 acre or more on a single charge. Some models include two batteries for backup. The PowerShare platform means you can swap batteries across other WORX tools for extra runtime when needed.
For very large lawns with dense coverage, consider the Worx Cordless Lawn Mower WG760 with its 5.0Ah batteries and self-propelled drive to reduce fatigue while maintaining power. If you need even more runtime, see our blade sharpener recommendations to keep your blades sharp and reduce power draw.
Final Thoughts
Choosing the best WORX mower for dense grass comes down to yard size, terrain, and how much automation you want. For small to midsize lawns with thick turf, the Worx Cordless Lawn Mower (WG745) delivers exceptional power and Intellicut smarts at a practical weight. If you need to cover up to half an acre with self-propelled convenience and extra torque, the Worx Cordless Lawn Mower (WG760) is a top-tier choice that handles dense grass with ease. Both models offer the brushless power and adaptive technology that make dense lawns manageable.
Related Guides
Frequently Asked Questions
Can a WORX mower handle very thick St. Augustine grass?Yes, especially models with brushless motors and Intellicut. The Worx Cordless Lawn Mower (WG745) and the self-propelled WG760 are both verified to cut through thick St. Augustine without stalling, provided the blades are sharp and the cutting height is set appropriately.
What is the best WORX mower for dense grass on a large lawn?For lawns up to 1/2 acre, the WORX 40V 21-inch 3-in-1 self-propelled mower (WG760) offers the best combination of power, runtime, and ease. Its AeroDeck technology reduces clogging in dense grass, and the variable speed self-propulsion makes long sessions less tiring.
Do I need a self-propelled mower for dense grass?Not always, but it helps on larger lawns or slopes. For smaller flat areas, a push mower like the WORX Cordless Lawn Mower WG779 is light enough to handle thick grass manually. Self-propelled models like the WG760 reduce fatigue when mowing dense turf across a half acre or more.
How often should I sharpen the blade on a WORX mower used in dense grass?For dense grass, check the blade every month during the growing season. Dull blades tear grass instead of cutting, leading to brown tips and increased power draw. Sharp blades improve cut quality and battery life. For tips, visit our guide on best robot mower blade sharpeners.
