The catch
Kenmore Featherlite Lift-Up
You still handle brush and filter maintenance by hand.
Side by side
Kenmore DU4080 is the choice if you carry the whole vacuum upstairs and want to stop the brush by hand. Shark LA492 is the choice for automatic floor response and a self-cleaning floor brush in daily sessions across mixed floors.
Before you buy
Kenmore specifies the DU4080 at below 12 lb, and Shark lists the LA492 at 13.12 lb. By the published full-unit figures, the Kenmore is more than 1.12 lb lighter, which helps when you carry the complete vacuum between floors. The weight of the detached pod and how it feels on the stairs remain unmeasured.
Where this comes from
Subtract a value below 12 from 13.12 and the gap is more than 1.12 lb.
The catch
You still handle brush and filter maintenance by hand.
The catch
Its full-unit spec is heavier.


We may earn a commission from qualifying Amazon purchases. How we make money
Carrying weight, bare-floor brush control and pet tools, compared for anyone who moves a vacuum between floors.
Kenmore DU4080 is the choice if you carry the whole vacuum upstairs and want to stop the brush by hand. Shark LA492 is the choice for automatic floor response and a self-cleaning floor brush in daily sessions across mixed floors.
Which one fits
The Kenmore's specified weight for the full unit is lower.
Manual shutoff is documented for Kenmore.
The Shark changes brush speed on its own.
Pet HandiMate is on the Kenmore's list, whereas the Shark set that was checked lists passive pet tools.
In practice
Kenmore specifies the DU4080 at below 12 lb, and Shark lists the LA492 at 13.12 lb. By the published full-unit figures, the Kenmore is more than 1.12 lb lighter, which helps when you carry the complete vacuum between floors. The weight of the detached pod and how it feels on the stairs remain unmeasured.
Subtract a value below 12 from 13.12 and the gap is more than 1.12 lb.
The DU4080 gives you a manual brush shutoff for bare-floor work, while the LA492 changes brush speed according to the surface it detects. If the floor-care instructions call for suction with the brush stopped, choose Kenmore. If automatic transitions suit flooring that you have confirmed it can clean, choose Shark.
For Kenmore, manual shutoff is documented. Automatic speed response on its own does not show that the Shark can turn its brush off.
Either one lets you carry a detached pod over to furniture, but the supplied tool sets are different. Kenmore lists Pet HandiMate, and Shark lists Pet Multi-Tool along with crevice and dusting tools. Look at the tool that will touch your fabric before you put the Shark floor brush first. No timed sofa-hair test picks a winner.
What the floor brush does and which hose tools come in the box are separate facts.

Kenmore, DU4080
Listed at under 12 lb, this bagless upright has a detachable pod and sealed HEPA filtration. The floor brush can be stopped for bare floors, and the specified cup size is 1.5 L.

Shark, LA492
Floor and direction sensors tune this single-roller upright. It has an ordinary detachable pod, and its pet tools for above-floor cleaning are passive.
Spec by spec
| Spec | Kenmore Featherlite Lift-Up | Shark Detect Lift-Away ADV | In practice |
|---|---|---|---|
| Whole-unit weight | Under 12 lb full unit | 13.12 lb full unit | The figures describe the complete unit and do not apply to the detached pod. |
| Floor control | Manual brushroll shutoff for bare floors | Floor Detect varies brush speed and Direction Detect changes suction routing | Wanting a dedicated stop is not the same concern as wanting automatic speed changes. |
| Portable configuration | Lift-Up pod for hose and accessory cleaning | Standard Lift-Away pod for hose and accessory cleaning | Each detaches for cleaning with tools, and no powered floorhead claim is made here. |
| Included fabric tools | Pet HandiMate and 3-in-1 combination tool | Pet Crevice Tool, Pet Multi-Tool and Anti-Allergen Dust Brush | The Kenmore comes with Pet HandiMate, and the Shark set has passive pet tools. |
| Power cord | 25 ft cord | 25 ft cord | The nominal cord length is identical on both. |
Trade-offs
Change of plan
Go with Kenmore Featherlite Lift-Up. Published weight for it is lower than the Shark’s full-unit weight.
Go with Shark Detect Lift-Away ADV. Brush speed shifts with the surface under Floor Detect.
Decision guide
Pick Kenmore DU4080 if carrying the whole vacuum upstairs and stopping the brush manually are your main concerns. Pick Shark LA492 if you want automatic floor response and a self-cleaning floor brush for daily use on mixed floors.
Kenmore specifies the DU4080 at below 12 lb, and Shark lists the LA492 at 13.12 lb. By the published full-unit figures, the Kenmore is more than 1.12 lb lighter, which helps when you carry the complete vacuum between floors. The weight of the detached pod and how it feels on the stairs remain unmeasured.
The DU4080 gives you a manual brush shutoff for bare-floor work, while the LA492 changes brush speed according to the surface it detects. If the floor-care instructions call for suction with the brush stopped, choose Kenmore. If automatic transitions suit flooring that you have confirmed it can clean, choose Shark.
Either one lets you carry a detached pod over to furniture, but the supplied tool sets are different. Kenmore lists Pet HandiMate, and Shark lists Pet Multi-Tool along with crevice and dusting tools. Look at the tool that will touch your fabric before you put the Shark floor brush first. No timed sofa-hair test picks a winner.
By the numbers
What we found across the upright vacuums we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Kenmore Featherlite Lift-Up |
|
|
|
| Shark Detect Lift-Away ADV |
|
|
|
Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Lift a complete unit specified at under 12 lb
See price & reviews on Amazon
Have sensors adjust brush speed as floors change
See price & reviews on AmazonEach link opens in a new tab.
We may earn a commission from qualifying Amazon purchases. How we make money