The WORX WR320 escaped the boundary wire and got tangled in its own app.

Rated coverage Up to half an acre

Drive Two-wheel drive

Navigation RTK Cloud, Vision AI and V-SLAM

Local RTK antenna Not required

Connectivity 2.4GHz Wi-Fi, Bluetooth and RadioLink

Warranty Three years

Price bracket Step-up

Our Verdict

Buy the WORX WR320 for wire-free maintenance of a firm, moderate lawn, but choose a 4WD rival if traction matters and walk away if software troubleshooting will spoil the time it saves.

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The WR320 solves two old robot-mower irritations at once. It replaces the buried cable that eventually gets cut, disturbed or struck by lightning, then replaces random wandering with deliberate stripes. On the right lawn, those changes are transformative. The machine leaves a clean, maintained surface while its owner is somewhere cooler, and it returns to the charger without requiring a separate RTK antenna on a pole or roof.

That lawn needs to meet it halfway. The WR320 is a maintenance mower, not a rescue mower for five-inch grass. Give the lawn a conventional first cut, remove sticks, toys and pet waste, then let the robot take small amounts frequently. Its half-acre rating describes the area it can maintain through repeated mowing and charging, not the ground it will cover on one battery or necessarily finish in one day.

The principal drawback is not cut quality. It is the unfinished software around good hardware. Map changes require walking with the mower and driving the revised boundary instead of drawing a line on the screen. Owners also report stale errors, awkward task cancellation, lost positioning links, height settings that reset and rescue routines with too many taps. The app contains plenty of features, but it often makes a simple correction feel like technical support.

Model identity matters here. ASIN B0GN8KK8XW is the plain WR320, not the closely related WR320.1. Exact-model owners report that this version includes RadioLink but omits both the Cut-to-Zero module and headlights; the edge module and light can be added separately. Find My Landroid should also be treated as an optional purchase for this listing rather than assumed to be in the box.

The antenna is gone, but the installation still has opinions

RTK corrections arrive through the cloud, while the cameras, V-SLAM, inertial sensing and wheel data help the WR320 continue beside buildings or under partial tree cover. That combination can work impressively beneath a canopy, and one heavily shaded zone became reliable after manual mapping. It is not immune to difficult properties, however. A single tree has been enough to trigger signal loss elsewhere, so V-SLAM is a credible fallback rather than a guarantee for every wooded yard.

The charging station remains fussy about its surroundings. It needs power, strong Wi-Fi, reasonably level ground and about 6.5 feet of clear space in front. WORX specifies no more than a 5° slope at the base, and even a slight incline has prevented successful redocking until the station was moved. It can sit beside the house or beneath cover if those practical requirements are satisfied.

Pairing requires a 2.4GHz network, Bluetooth and a sufficiently charged battery. The physical assembly is quick; firmware is what can consume the first afternoon. Updates have ranged from minutes to several hours, and one exact-model setup would not accept a Wi-Fi password containing special characters. Buyers with one combined network name, weak outdoor coverage or little patience for router settings should not mistake “no boundary wire” for “no setup.”

Automatic mapping is good until the boundary becomes ambiguous

On a clear lawn enclosed by paving, fencing or beds, automatic mapping can follow the perimeter with very little help. Grass that runs directly into a neighbor’s lawn needs a temporary visual boundary, such as the supplied patterned line or a garden hose. Manual mapping gives closer control around flush paving, while paths and additional zones must be driven into place.

The app advertises effectively unlimited zones, but that is a software allowance rather than proof of unlimited practicality. Three connected areas can work beautifully. Five zones joined by narrow passages, marginal Wi-Fi, slopes and closed gates create five opportunities for a rescue. The tools are flexible; the property is still physical.

The plain WR320 does not cut to zero or work after dark

The standard mower can run a wheel over a flush driveway or sidewalk and leave very little behind. Walls, fences, raised beds and tight corners still produce a strip for the string trimmer. The optional Cut-to-Zero attachment can reduce that work, but even the WR320.1 version equipped with it does not erase every border.

Without the optional light, dusk can end a run surprisingly early. Owners have seen an insufficient-light warning while usable daylight remained, so a long schedule cannot rely on the mower finishing after sunset. This is also a sensible wildlife constraint, not merely a missing accessory.

WORX WR320, view 2

WORX WR320, view 3

WORX WR320, view 4

WORX WR320, view 6

WORX WR320, view 2

WORX WR320, view 3

WORX WR320, view 4

WORX WR320, view 6

The cutting is disciplined; the wheels are less convincing

The WR320’s strongest performance is visible in the lawn rather than the specification sheet. Parallel, checkerboard and diamond routes replace the patchy appearance of older random Landroids with straight, consistent lanes. The cutting system leaves small clippings to disappear into regularly maintained grass, and quiet operation makes daytime scheduling realistic around a patio, home office or sleeping child.

Obstacle avoidance is above average without being clairvoyant. The cameras can route around dogs, people, swings, ropes and scattered toys, yet small sticks and a dog bone have reached the blades. Leaves can also become false obstacles and leave islands of uncut grass. Clear the lawn anyway, because object recognition reduces interruptions rather than transferring responsibility to the mower.

Two-wheel drive is the decisive limitation. Firm, reasonably smooth turf and moderate slopes suit it; wet hollows, ruts, off-camber turns and stressed grass do not. Minor imperfections have produced trapped errors, while narrow aggressive wheels can spin into thin ground instead of climbing out. Manual control sometimes reveals more climbing ability than autonomous mode is willing to use, but walking outside to push a robot defeats the point quickly.

St. Augustine deserves a particular warning. One Florida owner found the wheels pulling stolons, digging holes in heat-stressed areas and reporting wheel errors even in dense three-inch grass. Other sloped lawns have caused no trouble, so the WR320 is not restricted to billiard-table ground, but buyers should judge firmness, transitions and turning points rather than relying on a maximum-grade number.

Half an acre is a schedule, not a battery claim

The mower returns to charge and resumes, which is exactly how a maintenance robot should work. It also means elapsed completion time can be long. One exact WR320 could not finish a 1,610-square-foot backyard on one battery, while a closely related WR320.1 needed seven hours and two charging stops for roughly 8,500 square feet. Geometry, grass growth, obstacles and route design matter more than a tidy acreage label.

The removable PowerShare battery is a genuine advantage. A compatible spare can be swapped in to shorten downtime, and existing WORX tool owners may already value the shared platform. Owners have fitted larger packs, but that is not established here as official WR320 guidance, and extra capacity does not increase the mower’s software-defined managed area.

Choose the lawn before choosing the robot

Against an older wired Landroid, the WR320 wins decisively. There is no perimeter cable to repair, coverage is systematic instead of random and virtual zones are easier to change than buried wire. Its value comes from displacing routine mowing time, particularly in hot climates, rather than from completing the job quickly.

The WR320 and WR344 comparison is the useful next stop if wheel slip is the only doubt. Buyers deciding between larger coverage and a more compact LiDAR machine can instead see the WR320 and GOAT O1000 comparison. Paying for more mower is wasteful on easy grass, but buying too little traction turns every saved hour into another trip outside.

Ownership gets lighter, not hands-free

The recurring jobs are simple: clear debris, wipe the camera gently, remove packed clippings, inspect the travel route and replace the three small pivoting blades with their screws when worn. The deck can be rinsed with a hose after the mower is powered down and the battery removed, but a pressure washer can force water where it does not belong.

Repeated travel to the charger may wear one strip of turf, especially between zones, and wet grass increases both deck buildup and wheel slip. Winter storage and shelter from prolonged sun are sensible. The angular shell also catches grass and pollen, while the lack of a clean carry handle becomes obvious the first time an immobilized mower has to come home by hand.

The three-year manufacturer warranty is reassuring on paper, particularly after an owner received two machines with nonworking cutting systems. Support reports range from excellent help to unreachable phones, so return terms deserve attention during the initial setup period. A warranty is useful; it is not a promise that resolving a fault will be painless.