The models people weigh against each other

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  Three brands, one yard

  Navimow vs. Mammotion Luba vs. Worx Landroid

  The three wire-free mower brands people weigh against each other, judged against one quarter-acre yard with a slope on the makers' own area, slope and navigation figures.

  Both the Segway Navimow H210 and the WORX Landroid Vision Cloud 1/4 Acre are rated for this lawn, and to the same figure, 10,890 sq ft.

• 
  Three brands, one pool

  Dolphin Nautilus CC Plus vs. Aiper Scuba S1 vs. Wybot

  The pool robots people weigh against each other at this price, with the makers' own figures side by side and the gaps marked, then every one judged against one inground pool with walls.

  On an inground pool 35 feet long with the walls included, the Dolphin Nautilus CC Plus and the Aiper Scuba S1 both clear the limits their makers publish, and the Dolphin is the pick on the weight of the tester record: three review outfits named it their best overall robotic pool cleaner, against two that tested it and came away critical, including a Pool Nerd Disapproved.

• 
  Three brands, two cats

  Litter-Robot 4 vs. PetKit vs. Neakasa

  Three self-cleaning boxes, one house with two cats in it, and only one maker that publishes enough for that house to judge it. Here is what Whisker, PETKIT and Neakasa put in writing, and what each of them leaves blank.

  At two cats on clumping litter, only the Whisker Litter-Robot 4 clears every limit its maker publishes.

• 
  Three brands, one house

  Roborock vs. Roomba vs. eufy

  The three brands people put against each other, read off the figures each maker publishes and the ones it leaves blank, then judged against one house: hard floors and rugs, a shedding dog, a mop and a self-emptying dock wanted.

  On a house with hard floors and rugs, a shedding dog, a mop and a self-emptying dock wanted, the eufy X10 Pro Omni and the Roborock Q8 Max+ both clear every limit their makers publish, and both clear them at a limit, because neither maker's spec sheet prints how far the mop lifts over a rug and this house has rugs and wants a mop.

Every page carries an “adjust to my house” box that re-judges the picks on your own numbers. Every robot we track.