Kenmore Elite 31150 vs BU4050: Elite adds cord reach, BU4050 carries lighter and detaches for stairs
The short answer
Choose Elite 31150 for five manual carpet heights and a 35 ft cord. Choose BU4050 for a lighter full machine, a stair-cleaning pod and button-release self-sealing bags.
Before you choose
The reasoning and the trade-offs
The full-machine weight gap matters before you start cleaning
At 21 lb, Elite 31150 is more than 6 lb heavier than BU4050’s under-15-lb specification. BU4050 also detaches for stairs. Favor BU4050 if the vacuum must move between floors regularly. The complete-unit gap does not measure detached-pod comfort, so check the actual carrying handle and balance as well.
What this is based on
21 minus a value below 15 gives a difference greater than 6 lb.
Analysis updated , Catalog updated , Amazon.com / United States
About this comparison
Compare five-position carpet control, a 35 ft cord, stair carrying and self-sealing bag release with two Kenmore bagged uprights.
Choose Elite 31150 for five manual carpet heights and a 35 ft cord. Choose BU4050 for a lighter full machine, a stair-cleaning pod and button-release self-sealing bags.
Winner by situation
Start with what you need it to do
Rugs need deliberate height adjustment
31150 provides five settings.
Kenmore Elite Pet-Friendly Bagged Upright
Better fit
Kenmore Intuition Hair Eliminator
Caution
Carry the whole cleaner upstairs often
BU4050 has a lower published whole-unit weight.
Kenmore Elite Pet-Friendly Bagged Upright
Caution
Kenmore Intuition Hair Eliminator
Better fit
Want self-sealing button-release disposal
BU4050 explicitly provides that mechanism.
Kenmore Elite Pet-Friendly Bagged Upright
Good
Kenmore Intuition Hair Eliminator
Better fit
Outlet spacing makes five extra feet useful
31150 has a 35 ft cord against 30 ft.
Kenmore Elite Pet-Friendly Bagged Upright
Better fit
Kenmore Intuition Hair Eliminator
Good
What matters in practice
The differences that matter
01
The full-machine weight gap matters before you start cleaning
At 21 lb, Elite 31150 is more than 6 lb heavier than BU4050’s under-15-lb specification. BU4050 also detaches for stairs. Favor BU4050 if the vacuum must move between floors regularly. The complete-unit gap does not measure detached-pod comfort, so check the actual carrying handle and balance as well.
How we reached this conclusion
21 minus a value below 15 gives a difference greater than 6 lb.
02
The carpet-first model gives two useful manual adjustments
Elite 31150 offers five nozzle heights and a 35 ft cord. BU4050 has no manual height dial and a 30 ft cord. Choose 31150 for varied permitted carpet piles across longer routes on one level. These controls and dimensions do not establish stronger suction or better embedded-hair removal.
How we reached this conclusion
The recommendation combines documented nozzle adjustment with a 5 ft cord difference.
03
Both use bags, but the removal process is different
The 31150 guide describes manual bag removal. BU4050 adds a button release and a bag that seals as it leaves the cleaner. Choose BU4050 when handling dusty litter or loose fur at disposal is the concern. The bagged label alone does not establish the same sealing mechanism for both models.
How we reached this conclusion
Disposal advice follows the distinct documented bag-removal procedures.
Choice A
31150
Kenmore, 31150
Elite Pet-Friendly Bagged Upright
A 21 lb bagged upright with five manual height settings, a true brush-off floor mode and an included Pet HandiMate.
Best matched use
Set five manual carpet heights
Checked facts
Manual carpet height: Five manual nozzle-height settings
Whole-unit weight: 21 lb complete vacuum
Stair configuration: Fixed upright body with hose and telescoping wand
Bag removal: Bagged collection with manual bag removal
A bagged Lift-Up upright whose floor brush removes wrapped hair automatically. It combines button-release bags with a 30 ft cord and a separate brushroll stop.
Best matched use
Leave the floor base behind on stairs
Checked facts
Manual carpet height: No manual nozzle-height dial
Whole-unit weight: Under 15 lb full unit
Stair configuration: Lift-Up pod for hose and accessory cleaning
Bag removal: Self-sealing bags released by a button