Shark Rotator Pet Pro Lift-Away ADV vs Shark Rotator Lift-Away NV501

Both are corded Shark uprights with Lift-Away pods and sealed HEPA systems, so the real split is brushroll design and age. The LA555 is the newer machine: DuoClean PowerFins HairPro with a self-cleaning brushroll, an odor neutralizer, and a step pedal for pod release. The NV501 is the long-running classic, simpler and proven, with a 30-foot cord and a 0.9-quart dust cup. Buy the LA555 for heavy pet hair and mixed carpet and hard floors; buy the NV501 if you want a straightforward, well-reviewed upright and don't need the newer brushroll.

• Choose the Shark Rotator Pet Pro Lift-Away ADV if you have shedding pets, a mix of carpet and hard floors, and want the self-cleaning brushroll and odor control.
• Choose the Shark Rotator Professional Lift-Away NV501 if you want a proven, simpler upright with a long cord and don't need the newest brushroll tech.