Hookii Robot Mowers

The Neomow X was one of the first consumer mowers to put a spinning 3D LiDAR on the roof, the same idea Dreame and Ecovacs later adopted, and it still holds up: no boundary wire, no RTK antenna to find sky for, and it navigates under dense trees and at night because it does not depend on satellites. You drive it around the lawn edge once (about 45 minutes for a quarter acre per The Gadgeteer), then it mows in tidy parallel lines at under 60 dB. Three trims share one body: the X LE (0.37 acre, $1,799), the X (1 acre, $2,599) and the 17.5 Ah X Pro (1.5 acres, $2,899), and a newer Neomow X2 line with triple-camera auto-mapping now sits alongside it at similar prices. Hands-on reviewers at SmartHomeScene, The Gadgeteer and EasyLawnMowing all liked the cut and the app, and early owners on Hookii's site say it copes with clay, holes and dogs without getting stuck. Known weaknesses: it leaves about 2 inches uncut at hard edges, it is front-wheel drive so it slips on damp slopes well under its 45 percent rating, docking contacts can be finicky on uneven turf, and the camera half of the obstacle system is weaker in the dark. North American stock comes and goes, so check availability before you fall in love. If your yard is tree-covered and RTK mowers keep losing signal, this is the fix; if you want the tightest edges, look at a Segway Navimow with its edge blade.

Best for Tree-covered or signal-shadowed lawns up to 1.5 acres where RTK mowers struggle and you do not mind trimming edges.

The Neomow X 2 is the second-generation body behind the Neomow X, and the changes are mostly under the LiDAR dome: Hookii says the 360-degree scanner now outputs ten times the point-cloud data, runtime rises from 120 to 150 minutes on the same 13 Ah pack (200 minutes on the 17.5 Ah PRO), and cut height is now app-adjusted from 1.18 to 3.35 in. Four trims share one 37 lb front-wheel-drive chassis and 11 in five-blade disc: LE for 0.37 acre at $1,799, SE for 0.75 acre at $2,199, X 2 for 1 acre at $2,499 and PRO for 1.5 acres at $2,999, with zone caps of 30, 60, 90 and 120. The PRO ships with the triple-camera vision module that enables auto-mapping and 500+ object models; the other three map by remote-driving the perimeter and can add the module later. No RTK antenna is the whole appeal: a reviewer who ran one PRO across three separate front yards and a shared backyard mapped everything in about 15 minutes, got straight parallel lines under heavy tree cover, watched it dodge a coiled hose and dog toys, and squeezed through 30 in passages, but still had to trim along fences. Hookii lists no rain sensor, and 45% on front-wheel drive is optimistic on damp slopes. Against the Mammotion Luba 3 AWD 3000 at about $2,100 the SE is cheaper but loses AWD and the edge blade; against the first-gen Neomow X it is the better buy at the same money. Best for tree-covered lawns up to 1.5 acres where satellites are the problem.

Best for Wooded or building-shadowed lawns from a third of an acre to 1.5 acres where RTK mowers lose lock and the owner does not mind trimming edges.