Shark PowerDetect 2-in-1 Robot Vacuum & Mop vs Shark IQ 2in1 Self-Empty Robot Vacuum & Mop

The PowerDetect RV2820ZE is the stronger machine on paper: it self-refills and self-washes its mop pads, adjusts suction and mopping by floor type with five sensors, and carries a HEPA filter. The IQ 2-in-1 is the simpler, lighter, more proven option, with sonic mopping and Matrix Clean, but it uses a foam filter and a plain self-empty base. Owners of the PowerDetect rate it slightly higher but complain about leaks, black marks and app glitches, so buy it for hands-off mopping and buy the IQ for straightforward vacuuming with occasional mopping.

• Choose the Shark PowerDetect if you want a robot that washes and refills its own mop pads and switches suction and mopping by floor type, and you have pets or allergies.
• Choose the Shark IQ 2-in-1 if you mainly vacuum carpet and hard floor, want sonic scrubbing for stains, and prefer a lighter, simpler robot with a long track record.