OKP Life K2

Pet hair clogs other robots; the K2 pairs dual sidebrushes with 1800Pa suction to grab strands before they tangle the motor. Its compact form fits under most furniture, letting it find hair in places larger robots can't reach or where it accumulates in corners.

If pet hair is your main cleaning challenge, this focused design beats a general-purpose robot. The budget-friendly price matters here too, since a robot designed specifically for your problem outperforms a cheaper all-rounder that struggles with shedding.