The VergeCast, featuring senior smart home reviewer Jennifer Patterson-Tui and smart home reviewer Brandon Doyle, delves into the evolving world of robot lawnmowers, assessing their current capabilities, advancements, and lingering challenges.
Patterson-Tui opens by recounting her past frustrating experiences with these devices, marked by heat, sweat, and even minor injuries (to her husband). However, both reviewers agree that robot lawnmowers have come a long way in the past two years, now reaching "about 95% of what you're looking for," though some maintenance and "babysitting" are still required.
A major leap in improvement is attributed to navigation technology. Early models relied on boundary wires or RTK (Real-Time Kinematic) GPS systems. RTK often necessitated an antenna post in the yard with a clear sky view, proving problematic in tree-heavy areas. Brandon recalls the struggles of finding a signal, especially in suburban areas where houses are close and trees abound. Jennifer vividly describes spending "hours in my backyard sticking these antennas" only to be foiled by her Southern oak trees.
The latest generation addresses this by combining multiple technologies. Many now use LiDAR for mapping and V-Slam or cameras for object recognition, similar to robot vacuums. This allows them to navigate even when a GPS signal is weak. Crucially, several companies have adopted Net RTK, which connects to regionally located antennas rather than requiring an on-site post. While this eliminates the need for a dedicated yard antenna, it introduces a potential future concern: subscription costs after an initial free period.
Safety and object avoidance have also seen significant improvements. Both reviewers report that their test units successfully avoided pets and obstacles, with Brandon noting his dogs and Jennifer's flock of chickens were unscathed. The blades, they clarify, are not large spinning types but small razor blades on a cutting disc. Jennifer even points out that new models are packaged with polystyrene around the blades, perhaps in response to earlier safety concerns.
Despite the advancements, challenges remain. The devices are large and can still get stuck, necessitating physical intervention. Jennifer recounts a "buried robot lawnmower" incident and remotely steering one back to her yard from another country after it got stuck in an "endless loop" in her neighbor's driveway. Terrain has also been a historical hurdle; older models struggled with sandy soil and uneven ground. Newer all-wheel-drive models, like the Momotion Luba 3 All-Wheel Drive and Navimo X430, offer much better traction, though Brandon cautions that excessive traction could potentially damage a small yard.
A significant upcoming hurdle is the new FCC ban on mobile robots operating around homes and businesses in the U.S. without special waivers. This could slow down innovation and limit the availability of new models, meaning consumers might be restricted to currently available units.
On the positive side, robot lawnmowers offer unexpected benefits. Their consistent, tiny cuts contribute to a healthier, greener, and "fluffier" lawn, as both Jennifer and Brandon observed. Some advanced models can even create lawn stripes or "doodles," like the heart Brandon created in his backyard. Speed and efficiency have also increased, with some offering adjustable speeds. Several models, like the Ecovacs GOAT A3000 Pro, now include trimmer attachments, reducing the need for manual edging, though fences and garden beds can still pose issues. Jennifer also highlights the Dreamy A3 All-Wheel Drive Pro's ability to double as a security camera, patrolling at night, which adds significant value.
Jennifer praises the Momotion Luba 3 for its Net RTK capabilities and the Dreamy A3 for its all-wheel drive, security camera, and edge trimming. She was particularly impressed by the Navimo X430's unique ability to turn its front wheels 90 degrees and spin on a dime, making it highly maneuverable, even in her tree-filled backyard. Brandon's top picks include the Luba 3 and the Ecovacs GOAT A3000 Pro. He also notes the AnthBot as a surprisingly good option for smaller yards, priced under $1,000.
They observe that many leading robot vacuum manufacturers (Dreamy, Roborock, Ecovacs) are now making significant inroads into the robot lawnmower market. Looking to the future, innovative features like automatic gate opening (Navimo's gate system) are emerging, though both question if such complex solutions are always preferable to simply having two robots for different yard sections. They conclude that while robots are useful today, they are not yet at a point where everyone needs one, and fears of them "taking over" remain unfounded given their current limitations. The focus, they believe, will increasingly be on purpose-built rather than general-use household robots.