Pet hair is a maintenance problem before it is a suction problem
Marketing pages love dramatic suction numbers, but pet homes usually live or die on cleanup friction. Long fur wraps around rollers, kibble and litter collect at thresholds, and fine dust settles around corners where a weak navigation pattern becomes obvious within a few days. A vacuum that looks powerful on paper can still become annoying if every third run ends with you cutting hair off the brush by hand.
That is why the first question should not be, 'Which model has the biggest headline spec?' It should be, 'Which design is least likely to become a weekly nuisance in this house?' Homes with one short-haired cat have different needs from homes with two dogs, rugs, and muddy paw traffic. The better buy is the one that keeps showing up for your actual mess profile.
Navigation, thresholds, and room flow matter more than buyers expect
Pet fur rarely stays politely in the middle of an open floor. It gathers under dining chairs, beside litter boxes, around entry mats, and along the edge where hard flooring meets rugs. A robot that gets stuck on common transitions or misses the same awkward zone every day adds frustration without meaningfully reducing manual cleaning.
If your home has multiple rugs, feeding stations, or furniture with narrow clearances, consistent movement is more valuable than a flashy app screen. A calmer, more predictable machine often creates better long-term results than one with stronger marketing but weaker room behavior. For busy homes, 'boringly dependable' is often the feature that matters most.
Self-empty docks help only when they reduce the whole chore loop
A dock can be a major upgrade in homes where bins fill up after one or two runs. That is especially true for larger layouts, multiple pets, or households that want the robot running every day. But docks are not magic. Bags need replacing, filters still need attention, and hair tangles do not disappear just because the dust bin empties itself.
The best way to think about a dock is as labor reduction, not labor elimination. If it meaningfully lowers how often you interrupt the routine, it earns its space. If you still fight with tangled rollers, awkward filter access, or constant error prompts, the premium feature has not really solved the maintenance problem you paid to avoid.
Choose for the week you live, not the ranking graphic you see
A small apartment with one shedding pet may be better served by a compact robot that runs often and stores easily. A larger family home with rugs, cat litter, and a heavy-shedding dog usually benefits more from better navigation, stronger debris handling, and less frequent emptying. Those are different households, and they should not be pushed toward the same one-size-fits-all answer.
The strongest robot vacuum is the one that makes your manual vacuum come out less often, not the one that wins the loudest spec-sheet argument. If it can keep visible fur under control, handle the annoying zones in your floor plan, and stay usable after a month of pet mess, it is doing the real job that matters.