We will discuss the difference between Shark NV501 and UV440 within this post.
(The NV500, NV501, NV502, NV552, etc. are the same machine except for the included tools, color, and price.)
The Shark NV501 belongs to the Roator Lift Away Pro series while the UV440 is a Navigator Deluxe model, below is some difference between them.
Shark NV501 vs UV440
One of the biggest difference is that the NV500 series come with a Canister Caddy to transform the vacuum from an upright or handheld into a canister vacuum. And the caddy can hold additional cleaning tools. While the UV440 does not include this caddy.
And the NV500 series also have a Straight Suction Nozzle for cleaning bare floors that the UV440 does not include as well.
For a list of attachments, the UV440 comes with a Dusting Brush, Crevice Tool, Pet Power Brush.
While the NV501 Comes with a Dusting Brush, 12″ Crevice Tool, Large Turbo Brush, Multi Angle Dusting Brush, Straight Suction Nozzle, Canister Caddy.
The UV440 has 2 wands to extend the cleaning reach while the NV500 comes with only one wand.
The cable on the the Shark Navigator Lift Away Deluxe UV440 is longer, its length is 35-foot while the Rotator Lift-Away Professional NV501 has a 30-foot power cord.
Turbo Brush Tool Difference
Both of them come with a air driven turbo brush.
The one included within the UV440 is smaller with a transparent cover, and it can be open up completely to clean blockage, while the NV501 comes with a Large Turbo Brush that is opaque, it cannot be open up all the way, but just tilt to a certain degree.
The Shark NV500 series are equipped with LED headlights while the UV440 has no headlight.
Control Button Design
There is design difference on the control button. Here are pictures taken from the manual and product image:
The NV501 comes in white with red white while the UV440 comes in grey.
To sum up, the Shark NV500 series models come with more attachments while the UV440 can reach longer for cleaning large spaces because of its longer cord and the extra wand.
For visitors who own Shark NV500 series vacuum cleaners or a Shark UV440, we would appreciate if you could share more info below to improve the comparison above.