Average score
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
3.8
P2
Product 2: Shark Stratos Upright Vacuum
4.3
Accessories and Tools
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.5
Attachments were viewed positively when reviewers saw the pet tool pick up hair, called the attachment set useful, or described the HandiMate as good for upholstery and tight areas.
P2
Product 2: Shark Stratos Upright Vacuum
4.0
Included tools were useful, especially HairPro-style pet and upholstery tools, but some reviewers wanted more than the basic crevice and upholstery attachments.
Adaptive chassis lift
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.6
Lift-up or Lift Away-style functionality was repeatedly praised for changing the vacuum into a more flexible room, stair, and above-floor tool.
P2Product 2: Shark Stratos Upright Vacuum
No score yetAirflow blowback
P1Product 1: Kenmore Bagless Upright Vacuum Lift
No score yet
P2
Product 2: Shark Stratos Upright Vacuum
4.7
Airflow blowback was well controlled in one home test, where rice and litter did not shoot across the floor.
Area Rug Handling
P1Product 1: Kenmore Bagless Upright Vacuum Lift
No score yet
P2
Product 2: Shark Stratos Upright Vacuum
3.2
Area-rug handling was a weakness versus newer PowerDetect-style designs and required more passes on shaggy rugs.
Assembly and Setup
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.8
Setup was praised in one hands-on review as very easy.
P2
Product 2: Shark Stratos Upright Vacuum
4.6
Setup was easy overall; one comparison called assembly more involved, but hands-on reviews found it simple and intuitive.
Automatic standby switch
P1Product 1: Kenmore Bagless Upright Vacuum Lift
No score yet
P2
Product 2: Shark Stratos Upright Vacuum
4.6
One reviewer praised the brush rolls stopping when upright as a useful safety behavior.
Bin and Bag
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.3
The bin was described as large enough and easy to open, supporting solid scores for everyday debris handling.
P2
Product 2: Shark Stratos Upright Vacuum
4.3
The dust bin was usually liked for size and easy removal, though dog hair could fill it quickly in real home use.
Build quality and durability
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
3.3
Build impressions were split between well-built praise in test reviews and severe owner complaints about cracking and broken parts.
P2
Product 2: Shark Stratos Upright Vacuum
4.7
Build quality was praised, with reviewers calling out hefty plastic connections and sturdy hardware.
Carpet — High-Pile Pickup
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.7
High-pile carpet evidence was limited to one hands-on review but positive for removing cat hair and ingrained dirt.
P2
Product 2: Shark Stratos Upright Vacuum
3.8
High-pile performance was mixed: some reviewers praised thick-carpet cleaning, while others found sugar, rice, or sand left in shaggy fibers.
Carpet — Low-Pile Pickup
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.7
Low-pile carpet pickup was generally strong, including effective brush-roll comments, 98 percent pickup, and hands-on praise.
P2
Product 2: Shark Stratos Upright Vacuum
4.8
Low-pile carpet performance was excellent, including a 97% pickup result and strong real-world rug cleaning impressions.
Carpet — Medium-Pile Pickup
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.8
Medium-carpet pickup scored strongly in lab-style tests, including 98 percent overall pickup and a 100 percent carpet deep-clean result.
P2
Product 2: Shark Stratos Upright Vacuum
4.9
Medium-pile and general carpet pickup was strong, including high sand collection and praise for DuoClean carpet performance.
Clogging and debris prevention
P1Product 1: Kenmore Bagless Upright Vacuum Lift
No score yet
P2
Product 2: Shark Stratos Upright Vacuum
4.0
One test noted an initial odd debris transfer result but found the vacuum did not appear to clog in later trials.
Comparative performance
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.6
Comparative evidence was favorable overall, including better hardwood value versus a cheaper model and advantages over a Shark comparison, though not every comparison was a win.
P2
Product 2: Shark Stratos Upright Vacuum
4.6
Comparative testing placed the Stratos near or ahead of key rivals overall, though some competitors beat it in specific carpet or suction tests.
Controls and UI
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.6
Controls were praised for making surface changes easier and for better button placement than the comparison Shark.
P2
Product 2: Shark Stratos Upright Vacuum
4.5
Controls were praised as accessible and well-labeled, with handle-based floor settings making adjustments simple.
Convertible handheld design
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.6
The detachable canister/lift-up format was treated as a useful convertible cleaning design in the DU5092 review.
P2
Product 2: Shark Stratos Upright Vacuum
4.7
Powered Lift-Away was one of the strongest points, repeatedly praised for making the upright act like a more flexible canister-style vacuum.
Cord length
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
3.7
Cord length was mostly positive at 30 feet, but one review noted some users would prefer longer cords for larger spaces.
P2
Product 2: Shark Stratos Upright Vacuum
4.3
Cord length was viewed positively, with reviewers calling the 30-foot range sufficient and convenient.
Cordless convenience
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
2.3
Cordless convenience scored low because one reviewer explicitly found it less convenient than a cordless vacuum.
P2Product 2: Shark Stratos Upright Vacuum
No score yetCord management
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
2.8
Cord management was a mild drawback because one reviewer noted the cord must be wrapped manually.
P2Product 2: Shark Stratos Upright Vacuum
No score yetCrevice / Groove Pickup (Hard Floors)
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
2.7
Crevice pickup was a noted weakness in the DU5092 review, scoring below average alongside unsealed suction.
P2
Product 2: Shark Stratos Upright Vacuum
4.8
Crevice and groove pickup was a standout strength, with tests praising its ability to lift sand and debris from cracks.
Debris illumination
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.4
Debris illumination was positive in the DU5092 review, where LED lights were said to help reveal debris that might otherwise be missed.
P2Product 2: Shark Stratos Upright Vacuum
No score yetEase of use
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.6
Ease of use was a strong positive, with reviewers praising easier controls, responsive features, and straightforward handling.
P2
Product 2: Shark Stratos Upright Vacuum
4.7
Ease of use was strong overall, with reviewers praising usability and all-around performance.
Edge and Baseboard Cleaning (Hard Floors)
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
3.5
Edge cleaning received a moderate score because the head was said to work okay rather than exceptionally along edges.
P2
Product 2: Shark Stratos Upright Vacuum
4.7
Edge and wall cleaning were strong across tests, with reviewers noting good pickup along wall edges and coffee/rice edge tests.
Emptying and Mess Control
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.6
Emptying and mess control were repeatedly praised for easy canister removal, one-button emptying, and simple opening.
P2
Product 2: Shark Stratos Upright Vacuum
4.6
Emptying was generally clean and easy, with top and bottom dust-cup access reducing the need to touch debris.
Filtration / Dust Containment
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.6
Filtration received strong marks across reviews, with smoke tests passing well and HEPA or sealed-air-path comments tied to dust containment.
P2
Product 2: Shark Stratos Upright Vacuum
4.9
Filtration was a major strength, with reviewers praising the sealed HEPA setup and very low particle release in testing.
Floorhead design
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.1
Floorhead design was mostly positive because reviewers linked it to strong debris pickup and deep cleaning, while acknowledging a trade-off in seal.
P2
Product 2: Shark Stratos Upright Vacuum
4.4
The dual-brush floorhead was usually praised as efficient and useful, though one reviewer wished it performed better on certain carpets.
Floorhead Seal on Hard Floors
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
2.7
The floorhead seal was a weakness in the DU5092 review because large front gates let in more air and reduced the seal.
P2
Product 2: Shark Stratos Upright Vacuum
4.8
One comparison praised the head's ability to form a tight seal for deep cleaning.
Hair-removal channel issues
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
2.0
Hair-removal channel issues were clearly negative in one pet-hair comparison where hair stuck on the rollers.
P2
Product 2: Shark Stratos Upright Vacuum
2.5
One lab review found hair could catch in tines and near the soft roller, creating a de-tangling concern.
Hair Pickup — Carpets
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.4
Carpet hair pickup was generally positive, with fur and cat-hair removal praised, despite separate tangle concerns.
P2
Product 2: Shark Stratos Upright Vacuum
4.3
Carpet hair pickup was often praised, but one lab review found only average low-pile performance and weaker high-pile results.
Hair Pickup — Hard Floors
P1Product 1: Kenmore Bagless Upright Vacuum Lift
No score yet
P2
Product 2: Shark Stratos Upright Vacuum
4.7
Hard-floor hair pickup was supported by one review's combined bare-floor hair test, but evidence was limited.
Hair‑Wrap / Tangle Resistance
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
3.4
Hair-wrap resistance was split: one review said the Kenmore did poorly with hair tangles, while another DU5092 review praised the hair Eliminator nozzle.
P2
Product 2: Shark Stratos Upright Vacuum
4.6
Hair-wrap resistance was strongly praised by most reviewers, though one lab test found long hair tangling around the brush roller.
Hard Floor — Fine Dust Pickup
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.7
Hard-floor fine pickup was strong across reviews, with hardwood performance, 98 percent overall pickup, and fine-debris praise.
P2
Product 2: Shark Stratos Upright Vacuum
4.7
Hard-floor fine-dust performance was consistently strong, with reviewers praising dust pickup on bare floors and hardwood.
Hard Floor — Large Debris Intake
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.7
Large-debris intake scored strongly because reviewers praised hardwood pickup and large front gates for debris other vacuums may miss.
P2
Product 2: Shark Stratos Upright Vacuum
4.7
Large-debris hard-floor pickup was strong, with little scattering and successful pickup of rice, oatmeal, crumbs, and mixed debris.
Headlight and LED lights
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.1
LED lighting was consistently useful in reviews, helping illuminate dark spots or missed debris.
P2
Product 2: Shark Stratos Upright Vacuum
3.0
LED lighting evidence was limited and mildly negative, with one comparison saying the Stratos lights were less pronounced than another Shark.
Hose length
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.5
Reach was praised through the 10-foot wand and a comparison noting the wand was longer than a Shark model.
P2
Product 2: Shark Stratos Upright Vacuum
4.6
The hose and wand reach were praised for giving more than 8 feet of extended reach.
Innovation compared to competitors
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.2
Innovation evidence was limited but positive where sealed filtration was described as rare in the price range.
P2
Product 2: Shark Stratos Upright Vacuum
4.6
The Stratos was treated as an advanced flagship that combines Shark's prior best upright features with newer suction and odor technology.
Low-profile design
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
2.2
Low-profile design scored poorly because multiple reviews said the main head was too large to fit under a bed.
P2
Product 2: Shark Stratos Upright Vacuum
5.0
Low-profile cleaning was a strength because Powered Lift-Away helped reach under furniture where uprights often struggle.
Maintenance requirements
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
3.0
Maintenance requirements were a moderate drawback because one review said the filter needs monthly cleaning to keep performance.
P2
Product 2: Shark Stratos Upright Vacuum
3.8
Maintenance was mixed: washable filters were a plus, but odor cartridges and hair cleanup could add extra work.
Maneuverability and Handling
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.5
Maneuverability was generally praised, with swivel steering and easy direction changes highlighted across multiple reviews.
P2
Product 2: Shark Stratos Upright Vacuum
3.9
Handling was split: reviewers liked the swivel and obstacle navigation, but some found the bulky canister harder to maneuver.
Noise level
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
2.7
Noise was a consistent caveat: reviewers measured or described it as noisy, louder than a Shark comparison model, or noisy on higher suction settings.
P2
Product 2: Shark Stratos Upright Vacuum
3.2
Noise was a recurring tradeoff: one test found it only slightly louder than a cheaper Shark, while another called it clearly noisy.
Odor control
P1Product 1: Kenmore Bagless Upright Vacuum Lift
No score yet
P2
Product 2: Shark Stratos Upright Vacuum
3.3
Odor control was mixed: one review liked the idea or masking effect, but multiple hands-on reviewers barely noticed it or saw it as added maintenance.
Ongoing ownership costs (bags, filters, batteries)
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
1.2
Ongoing ownership cost evidence was negative in one review because replacement filters were described as expensive.
P2
Product 2: Shark Stratos Upright Vacuum
4.6
Ownership costs were seen as reasonable because filters last a long time and are not expensive to maintain.
Overall durability/longevity
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
1.0
One negative owner review reported early motor failure, making longevity a serious concern in that review.
P2Product 2: Shark Stratos Upright Vacuum
No score yetOverall opinion
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.2
Overall opinion was mostly favorable, with several strong recommendations or 'impressive' conclusions, offset by one strongly negative owner review.
P2
Product 2: Shark Stratos Upright Vacuum
4.7
Overall sentiment was strongly positive, with multiple reviewers calling it one of the best uprights or a favorite despite weight and shag-carpet caveats.
Packaging quality
P1Product 1: Kenmore Bagless Upright Vacuum Lift
No score yet
P2
Product 2: Shark Stratos Upright Vacuum
5.0
Packaging quality was praised in one hands-on review for organized wrapping and easy unboxing.
Pet-Ready Features
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.3
Pet-oriented evidence was mostly positive: reviewers liked the pet tool, brush roll, and pet-hair cleaning ability, though separate tangle evidence showed limits.
P2
Product 2: Shark Stratos Upright Vacuum
4.6
Pet-focused evidence was generally positive, especially for pet hair pickup and sealed filtration, though pet-hair results varied by surface in broader testing.
Price and Value
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.1
Most reviews framed it as a strong value for the price, but one owner review sharply disagreed after failures and filter costs.
P2
Product 2: Shark Stratos Upright Vacuum
4.6
Value was viewed positively because reviewers saw premium cleaning, filtration, and versatility at a lower price than some rivals.
Reverse cleaning performance
P1Product 1: Kenmore Bagless Upright Vacuum Lift
No score yet
P2
Product 2: Shark Stratos Upright Vacuum
4.0
Reverse-pass carpet performance was good but not perfect, with one test noting the Stratos missed more sand than Dyson on the return pass.
Self-propel feature
P1Product 1: Kenmore Bagless Upright Vacuum Lift
No score yet
P2
Product 2: Shark Stratos Upright Vacuum
4.0
The brush rollers gave a mild self-propel feel, helping the vacuum move forward during use.
Stair Cleaning
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.5
Stair use was rated positively where Lift Away technology made stair cleaning easier.
P2
Product 2: Shark Stratos Upright Vacuum
3.8
Stair usability was mixed but mostly workable: Lift-Away helped, while the full unit's weight made carrying it upstairs less ideal.
Storage footprint and upright-stand stability
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.5
Storage received a positive mention from one reviewer who said putting it away was simple.
P2
Product 2: Shark Stratos Upright Vacuum
2.5
Stability was a clear weakness in one hands-on review, where the vacuum tipped easily during stretched-hose cleaning.
Suction and Airflow
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.6
Reviewers repeatedly measured or described strong suction and airflow, including 22 kPa results and above-average head airflow, with one owner also praising how much it pulled from carpet.
P2
Product 2: Shark Stratos Upright Vacuum
4.8
Reviewers consistently described the Stratos as extremely powerful, with strong suction and airflow that helped it excel in deep debris pickup.
Suitability for heavy-duty use
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.3
Heavy-duty suitability was supported by a reviewer saying homes with lots of carpet, kids, or pets may need a heavier corded option like this.
P2
Product 2: Shark Stratos Upright Vacuum
4.5
Reviewers saw it as capable of serious cleaning, with enough power and hardware quality for heavier-duty use cases.
Suitability for small spaces
P1Product 1: Kenmore Bagless Upright Vacuum Lift
No score yet
P2
Product 2: Shark Stratos Upright Vacuum
4.6
Small-space suitability was supported by precise swivel motion and easy navigation around tight spaces and obstacles.
Support and Reliability
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
2.1
Reliability evidence was mixed: professional-style reviews disliked the shorter warranty, while one owner reported the vacuum would not power on.
P2Product 2: Shark Stratos Upright Vacuum
No score yetTool-change simplicity
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.6
Tool and release actions were praised when reviewers noted one-button canister emptying and an easy switch between crevice and brush tool modes.
P2
Product 2: Shark Stratos Upright Vacuum
4.6
Tool changes were generally easy, with reviewers praising the removable wand and straightforward access for brushroll cleaning.
Under-Furniture Pickup
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
3.4
Under-furniture performance was mixed: Lift Away helped in one comparison, but multiple reviews said the main head was too big for beds.
P2
Product 2: Shark Stratos Upright Vacuum
4.7
Under-furniture cleaning was a standout benefit because Powered Lift-Away made low-profile furniture and hard-to-reach areas easier.
Upholstery / Above-Floor Pickup
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.5
Above-floor and upholstery cleaning scored well through praise for ceiling reach, pet-hair cleaning on furniture and stairs, and sofa cleaning.
P2
Product 2: Shark Stratos Upright Vacuum
4.4
Above-floor and upholstery cleaning were strong, especially with the removable canister and HairPro-style powered tool.
Versatility
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
4.5
Versatility was one of the strongest themes, supported by lift-up use, tools, reach, upholstery cleaning, and multi-surface performance.
P2
Product 2: Shark Stratos Upright Vacuum
4.8
Versatility was a major selling point, with the lift-off canister making it feel like two vacuums in one.
Weight
P1
Product 1: Kenmore Bagless Upright Vacuum Lift
3.2
Weight evidence was mixed: several reviews found it heavy or cumbersome versus cordless models, while one review called 14 pounds below average and another called it lightweight.
P2
Product 2: Shark Stratos Upright Vacuum
3.0
Weight was the main ergonomic drawback, with reviewers calling it bulky, heavy, or cumbersome to carry.