Thick, lush grass is the pride of any lawn, but it can be a real challenge for your mower. Whether you are dealing with dense St. Augustine, tough tall fescue, or overgrown Bermuda, you need a machine that can power through without stalling or leaving clumps. That is where WORX steps in with a lineup designed to handle the heaviest growth. In this guide, we break down the best WORX mower for thick grass so you can reclaim your yard with confidence.
We have picked eight top-rated models, from self-propelled beasts to nimble trimmers and even a high-tech robot. Each is verified for its ability to cut through dense conditions using advanced brushless motors, Intellicut sensors, and aerodeck designs. If you are dealing with particularly stubborn turf, check out our deep dive into the best WORX mower for tall fescue for specialized insights.
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.
Buying Guide
Cutting Power and Motor Type
For thick grass, brushless motors are non-negotiable. They deliver more torque and run longer than brushed alternatives. WORX’s Brushless Motor 2.0 offers a jump in power and efficiency, making it ideal for dense lawns. Look for models with Intellicut Technology, which automatically adjusts blade speed when the grass gets heavy. This ensures you never lose momentum in the thickest patches.
Models like the Worx Cordless Lawn Mower and the self-propelled WG760 excel here. Their motors are built to handle the extra load without bogging down.
Deck Design and Airflow
The cutting deck matters just as much as the motor. A vented design, like WORX’s AeroDeck, boosts airflow to prevent clogs and clumping. This is critical in thick grass, where wet or dense clippings can stick inside the deck and reduce cutting efficiency. A good deck also lifts the grass for a cleaner cut, which is essential for evenness on uneven terrain.
Both the Worx Cordless Lawn Mower (WG760) and the WG752 feature AeroDeck Technology, making them top choices for heavy growth. For other tough turf types, see our guide to best WORX mower for bermuda grass.
Self-Propelled vs. Push vs. Robot
Your yard size and terrain dictate the best drive system. Self-propelled mowers reduce fatigue on larger or sloped lawns, letting you guide the mower through thick grass without extra effort. Push mowers are lighter and more maneuverable for small yards, while robot mowers offer hands-free convenience but need consistent power for dense strips.
The self-propelled WG760 is ideal for quarter-acre to half-acre yards with thick grass. For smaller spaces, the push models like the WG745 or WG735 offer excellent value. If you want automation, the WORX Robot Lawn Mower handles up to a quarter acre but relies on its sensors to navigate denser areas. For more on robotic options, see our guide for St. Augustine grass.
Cutting Width and Height Adjustability
A wider cutting deck covers more ground per pass, but a narrower deck is better for tight spots. For thick grass, a smaller deck (like 14 inches) may require more passes but offers better power density per inch. Height adjustability is equally important; thicker grass often needs a taller cut to avoid scalping, while you can gradually lower it once the grass is trimmed.
Look for mowers with single-lever height adjustment across 6 or 7 positions. The WG745 and WG760 offer ranges from 1.5 to 4 inches, giving you the flexibility to tackle varying growth stages. The compact WG733.1 and WG735 also provide multiple height settings for smaller lawns.
Final Thoughts
For tackling thick grass, our top recommendation is the Worx Cordless Lawn Mower with AeroDeck and self-propelled drive, which combines raw power with smart design to breeze through dense lawns without clogging. If you prefer a more budget-friendly push model that still delivers serious cutting force, the Worx Cordless Lawn Mower with Brushless Motor 2.0 and Intellicut is an excellent choice for smaller yards. Whichever you pick, you will have a machine that turns thick grass from a headache into a clean, satisfying cut.
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Frequently Asked Questions
Can a WORX mower handle thick, wet grass?
Yes, especially models with Intellicut Technology and AeroDeck. The Intellicut system automatically boosts blade speed in heavy conditions, while the vented deck prevents clumping. For best results, avoid mowing when the grass is soaking wet, as clippings can still stick.
What is the best WORX mower for a yard with thick weeds?
The self-propelled WG760 or the push WG745 are both excellent. Their brushless motors provide extra torque to slice through tough weeds. For smaller patches, the WORX 20V string trimmer works well as a mini mower for touch-ups.
How do I maintain my WORX mower for thick grass performance in 2026?
Keep the blade sharp and the deck clean. After each use, remove grass clippings from the undercarriage to maintain airflow. Sharpen or replace the blade at least once per season, and store the battery in a cool, dry place.
Will a robot mower work on thick grass?
The WORX Robot Lawn Mower uses Vision AI and RTK Cloud technology to navigate thick grass, but it may struggle with very dense or overgrown areas. It is best suited for frequent, light cuts on established lawns. For heavy growth, a push or self-propelled mower is more reliable. For more insights, see our guide for Bermuda grass.
