Robomow Robot Mowers

Robomow was one of the original robot mower brands (Israeli, now part of MTD under Stanley Black & Decker) and the RK2000 is its mainstream US model: a boundary-wire mower rated for 2,000 square meters, about half an acre, sold mostly through Home Depot at $1,499 with a 3-year warranty. The RK series has a few things older wire mowers lack. The deck floats on a pendulum suspension, the blade disc sits offset so it can trim right over the wire on one side, the four razor blades are staggered on the spinning disc, and it climbs 45 percent inside the mowing area (20 percent along the wire). Runtime is 80-90 minutes with a 60-120 minute recharge, it is quiet at 64 dB maximum, and you can carve the lawn into a main zone plus four sub-zones. Programming happens on a 4.3-inch color touchscreen or over Bluetooth in the Robomow app; remote GSM access is an add-on module. It is also a random-pattern mower with no cameras, so anything you leave inside the wire gets bumped, and the wire itself is a weekend install. Home Depot buyers rate it a middling 2.9 out of 5 across 9 reviews, and Robomow's US presence has thinned since the MTD sale, so weigh that against a Husqvarna Automower 310 Mark II at a similar price with a far bigger dealer network. Pick the RK2000 if you specifically want the offset edge-cutting disc and the touchscreen; pick the Husqvarna for support.

Best for Half-acre wired lawns where close edge trimming and a touchscreen matter more than app polish or dealer support.

The RK4000 is the big-lawn Robomow: a 16.5 in twin-disc deck, a 9.6Ah 18.5V pack good for 110 to 120 minutes per 90 to 110 minute charge, and a 1-acre rating, sold in the US only through Home Depot at $1,999. Robomow's international site calls this body the RK4000 Pro. That makes it one of the very few wired mowers under $2,000 rated for a full acre, and the twin discs cover ground twice as fast as the 8.3 in RK2000. The rest of the RK recipe carries over: floating deck, offset blades that trim over the wire, 45% (24 degree) slopes inside the area, a 0.6 to 3.9 in height range and a 4.3 in touchscreen. Home Depot owners who got a working unit praise the quiet running, clear setup documentation and better slope handling than similar mowers, and say it copes with tree debris. The complaints are the ones that follow the brand: it mows well where it goes but leaves patches it never reaches, units that stop seeing the boundary wire with a support ticket unanswered for a month, an app that cannot cancel a job or remember your PIN and needs its data cleared to reconnect, and remote control that does not actually work from outside Bluetooth range. A full-acre wire install is a weekend job. A Husqvarna Automower 430XH covers the same acre for about $700 more with a real dealer network behind it; a Segway Navimow X4 does it with no wire for about $500 more.

Best for A wired acre where a 16.5 in deck under $2,000 matters more than dealer support or a modern app.

The RK1000 is the quarter-acre entry to Robomow's RK line, the same body and 4.9Ah pack as the RK2000 but rated for 1,000 square meters instead of 2,000, and Home Depot sells it for $1,199 with a 3-year warranty. Robomow's own spec sheet is honest about what that battery buys: 40 to 50 minutes of mowing per 60 to 120 minute charge, which is why it carries the smaller rating. What it shares with the RK2000 is the good stuff - a pendulum-suspended floating deck, an offset four-blade disc that trims over the wire on one side, a 45% (24 degree) slope rating inside the mowing area, a 0.6 to 3.9 in height range and a 4.3 in color touchscreen on the mower. Owners at Home Depot report it is quiet and simple to set up, but the same reviews rate it 2.9 out of 5 for the reasons that dog the whole line: the Bluetooth-only app drops connection, it is slow, a lawn near the 10,000 sq ft ceiling does not get finished on one charge, the wire is easy to tear up, and since Robomow's sale to MTD, US parts and support responses are slow and expensive. Robomow's own US site now redirects to a parts store. Against a Gardena SILENO flex at $599 for a similar lawn size, you pay double for the edge-trimming disc, the touchscreen and the taller cut.

Best for Small wired lawns under a quarter acre where the RK's edge-trimming disc and tall cut are worth paying double a Gardena for.