Shark Navigator Lift-Away Deluxe NV360 vs Shark PowerDetect Upright Vacuum with DuoClean Detect Technology and Self-Cleaning Brushroll

The PowerDetect AZ3901 is the newer, smarter machine: DuoClean Detect with Intelli-Sense sensors adjusts suction and brush speed to the floor, and the self-cleaning brushroll handles hair. The Navigator NV360 is the simpler, lighter upright, about a pound less, with a detachable Lift-Away canister for stairs and above-floor work. Owners of the Navigator praise suction and easy handling but some call it heavy and awkward; the PowerDetect has far fewer ratings and a lower average, so its record is thinner. Buy the Navigator for proven reliability and portable cleaning; step up to the PowerDetect for sensor-driven cleaning on mixed floors.

• Choose the Shark Navigator Lift-Away Deluxe NV360 if you want a proven upright with a detachable canister for stairs, cars and above-floor cleaning.
• Choose the Shark PowerDetect AZ3901 if you have mixed hard floors and carpet and want automatic suction and brushroll adjustment plus a self-cleaning brushroll.