Robot lawn mowers

What decides it

Navigation: RTK GPS and vision models need no boundary wire; wired models are cheaper but take a weekend to install. Lawn size and slopes: buy for your real area with 20% headroom, and check the maximum slope rating. Theft and weather: look for PIN lock, GPS tracking and rain sensors.

The models we would buy

Start with the Segway Navimow X3: wire-free RTK and vision mower for larger lawns. The Mammotion Luba 2 AWD 3000 is the better buy if your lawn has steep slopes. Usual prices run from $499 to $5,499. See the full buy-or-skip list or the head-to-head Segway Navimow X3 vs Mammotion Luba 2 AWD 3000.

Buying robot lawn mowers in the US

Robot mowers are cheapest in late summer and fall; buying then also gives you the winter to set up mapping before spring. Prices on Amazon.com move in a pattern. The deepest cuts land on Prime Day in July, Prime Big Deal Days in October and the Black Friday to Cyber Monday week, with smaller drops around Presidents Day, Memorial Day, the Fourth of July and back-to-school. Judge a deal against the usual price we show, never against the crossed-out list price.

Quick answers

Do robot mowers work on any lawn? Most handle flat to moderately sloped lawns. Very steep yards, lots of narrow passages or heavy tree cover can confuse GPS models. Are robot mowers safe around kids and pets? They stop when lifted or tilted and blades are recessed, but keep children and pets off the lawn while it mows.

Order from Amazon itself or the brand's official storefront so the US manufacturer warranty applies, keep your order confirmation and register the product with the brand. Most items can be returned within 30 days, and holiday purchases often get an extended return window into January.

How we make the call: we read spec sheets, manuals and warranty terms, check long-term owner feedback and US support, and track the usual Amazon.com price. A product gets “Buy” only if we would tell a friend to buy it at that price. Brands cannot pay for a verdict.