This list is for yards with trees, tall walls or buildings that can block satellite signal. A mower qualifies if its navigation, per the brand's specs, uses no RTK or satellite positioning and relies on LiDAR and cameras instead. Before buying, read how it handled mapping, since PCWorld saw automatic mapping fail on one of these models. How we score.
Compact AWD LiDAR mower with an edge disc for tight, sloped yards
Ties the LUBA 3 at 8.0 and ranks first because it costs about $600 less. Techaeris rated it 9.0/10 and found navigation reliable under trees, though runtime fell to about 90 minutes on slopes or thick grass. Reviewers' main complaint is coverage for the price, since it tops out at 0.37 acre.
AREA 0.37 acreMAX SLOPE 80%NAVIGATION LiDAR + visionCUT WIDTH 20 cm + 12 cm edgeSCORE 8.0
LiDAR and vision AWD mower, no RTK, for hilly 0.62 acre lawns
A clear step down in test scores from the two LUBAs: Gizmodo gave the 3500 version 3.5/5 after seeing ruts and bald spots on damp slopes. It still ranks above the Ecovacs GOAT because it costs about $800 less and needs no RTK. Notebookcheck's ramp test reached just over 70% against its 80% claim.
Dual LiDAR mower with a built in edge trimmer, no RTK needed
Bob Vila rated it 4.5/5, on par with the top two, and its built in trimmer replaced most manual edging in BGR's test. It ranks last of the scored mowers because it is among the priciest here, about $800 more than the Dreame. Its 50% slope rating is also lower than the AWD rivals above it.
Premium LiDAR and vision AWD mower for 0.75 acre with slopes
A LiDAR and camera AWD mower rated for 0.75 acre and 80% slopes, with up to 150 zones and a 3 year warranty. Bob Vila named it Best Premium Pick, while PCWorld saw automatic mapping fail on a complex lawn. It is not ranked yet because neither review gave a numeric score to rank it on.
AREA 0.75 acreMAX SLOPE 80%NAVIGATION LiDAR + visionCUT WIDTH 15.8 inSCORE not yet
Affordable LiDAR and vision mower for flat quarter acre yards
A LiDAR and camera mower for flat yards up to 0.25 acre, with no wire, antenna or RTK. Tom's Guide found setup easy but saw an uncut strip along the edges, and Bob Vila found its small front wheels struggled on steeper ground. It is not ranked yet because neither review gave a numeric score.
AREA 0.25 acreMAX SLOPE 42%NAVIGATION LiDAR + visionCUT WIDTH 7 inSCORE not yet