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Put two or three robots on the same axis.
Every figure is placed against the whole class it belongs to, so you can see not just which is higher but whether the gap is worth anything. No winner is declared.
Robots people weigh against each other.
Same class, similar autonomy, similar price — the pairings where the choice is actually close. Proximity, not merit: none of these is a recommendation.

Humanoid RobotsZeroth BridgevsWeave Isaac 0Both Level II, at the same price.
Multi-Task RobotsYarbo Y40 Snow BlowervsYarbo M20iBoth Level III, 3% apart on price.
Robot Lawn MowersMammotion LUBA mini 2 AWD 1000vsHusqvarna Automower 312VBoth Level IV, at the same price.
Robot Pool CleanersMammotion SPINO E1vsMOVA Diver A10Both Level III, at the same price.
Robot VacuumsEcovacs Deebot N30 OmnivsEcovacs Deebot X9 Pro OmniBoth Level III, at the same price.
Robot Window CleanersHOBOT 2SvsEcovacs Winbot 920Both Level II, at the same price.
Specialty RobotsCatLink Scooper Pro UltravsPetKit Purobot Max Pro 2Both Level II, at the same price.Add a robot
Comparing across classes is allowed — the page will switch to per-class positioning and tell you it has.