Compare BLACK+DECKER Powerseries Extreme Cordless Vacuum Cleaner vs Shark Vertex Pro Cordless Vacuum Cleaner

P1 BLACK+DECKER Powerseries Extreme Cordless Vacuum Cleaner
P2 Shark Vertex Pro Cordless Vacuum Cleaner

Comparison Takeaways

BLACK+DECKER Powerseries Extreme Cordless Vacuum Cleaner

Where It Has the Edge

  • Crevice / Groove Pickup (Hard Floors) is 5.0 vs 2.5. Crevice and groove pickup has one strong positive mention for reaching tight edges and corners.
  • Innovation compared to competitors is 5.0 vs 2.5. Innovation is positive for the price, especially self-standing storage and AutoSense-style features that reviewers considered rare or absent...
  • Clogging and debris prevention is 3.8 vs 1.5. Clogging evidence is split: one review warned the brush can jam on cords or tassels, while another praised...
  • Onboard tool storage is 4.0 vs 2.0. Onboard tool storage has one positive mention for the crevice tool mounting to the base and being ready...

Shark Vertex Pro Cordless Vacuum Cleaner

Where It Has the Edge

  • Carpet — High-Pile Pickup is 5.0 vs 1.0. High-pile carpet evidence is excellent, including a best-performance tie and a successful shag-carpet test.
  • Filtration / Dust Containment is 4.5 vs 1.6. Filtration and dust containment are a major strength, with multiple reviewers praising sealed HEPA performance and low particle...
  • Suitability for heavy-duty use is 4.5 vs 1.8. Heavy-duty suitability has limited but positive evidence from a pet-heavy home reviewer who saw enough power for deeper...
  • Assembly and Setup is 5.0 vs 2.5. Setup is consistently easy, with reviewers saying assembly is straightforward and the main parts click together logically.
Average score
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.6
Product 2: Shark Vertex Pro Cordless Vacuum...
3.9
Accessories and Tools
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.2

Accessory coverage is mixed: some reviews liked the pet and crevice tools or extra attachments, while others criticized the limited attachment set.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.9

The tools are useful for common above-floor tasks, but coverage is uneven and some reviewers wanted better storage or a broader kit.

Aesthetic design and finish
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.5

One reviewer liked the modern-looking colors and design.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.0

Design opinions are mixed but lean positive: reviewers liked the sleeker look in some models, while one found the styling clunky.

AI, Smart, App and Automation
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.3

Smart/automation evidence is positive where AutoSense is tested, with reviewers saying it adapted to surfaces and offered higher-end-style floor detection at a budget price.

Product 2: Shark Vertex Pro Cordless Vacuum...
2.5

Smart automation is a weakness because reviewers noted the lack of automatic suction or floor adjustment.

Airflow blowback
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
2.3

Airflow blowback is a real hard-floor caveat, with one lab test reporting rice blown away and another quick test noticing some kickback.

Product 2: Shark Vertex Pro Cordless Vacuum...
No score yet
Area Rug Handling
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.0

Area rug handling is mixed, ranging from a good rug crumb test to sticking or difficult pushing on certain rugs.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.5

Area-rug handling is mixed: shag performance was praised, but rugs, tassels, and deep pile could cause sticking.

Assembly and Setup
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
2.5

Setup evidence is limited and mixed, with one reviewer struggling for a week before figuring out the battery insertion.

Product 2: Shark Vertex Pro Cordless Vacuum...
5.0

Setup is consistently easy, with reviewers saying assembly is straightforward and the main parts click together logically.

Battery and Charging
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.3

Battery and charging are a strength because reviewers liked the removable/swappable Black+Decker battery system, even when charging speed or high-power runtime drew caveats.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.1

Battery and charging are generally positive because of removable or swappable batteries, though runtime depends heavily on mode.

Bin and Bag
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
2.1

Bin feedback is mostly negative, citing small capacity, tricky removal, weak sealing, and one reviewer calling the cup terrible.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.9

Dust-bin feedback is mixed: some reviewers liked the larger or above-average capacity, while another found the bin compact and messy to empty.

Build quality and durability
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.1

Build quality is better than some budget rivals but still budget-grade, with praise for sturdiness alongside caveats about cheaper plastic.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.5

Build-quality evidence is limited to one positive user-facing comment describing the vacuum as sturdy and well made.

Carpet — High-Pile Pickup
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
1.0

High-pile performance is poor in the lab review, with only 24% debris pickup reported.

Product 2: Shark Vertex Pro Cordless Vacuum...
5.0

High-pile carpet evidence is excellent, including a best-performance tie and a successful shag-carpet test.

Carpet — Low-Pile Pickup
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.7

Low-pile or general carpet pickup is generally good for smaller debris and surface pickup, but not consistently deep or premium.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.3

Low-pile carpet pickup is strong in tests, with one review reporting 90% pickup and another saying most debris was collected.

Carpet — Medium-Pile Pickup
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.6

Medium-pile and general carpet test evidence is strong, with multiple reviewers reporting very good pickup or above-average deep-clean performance.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.7

Medium-pile and deep carpet evidence is strong, including perfect or near-leading deep-clean results in several tests.

Clogging and debris prevention
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.8

Clogging evidence is split: one review warned the brush can jam on cords or tassels, while another praised no clogs or stuttering in debris tests.

Product 2: Shark Vertex Pro Cordless Vacuum...
1.5

Clogging prevention is a weakness in the lab review that found the pre-motor filter clogged easily with fine debris.

Comparative performance
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.6

Comparative performance is mixed: it beats some budget rivals in build and airflow and matched one Dyson carpet test, but other budget models were said to perform better overall.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.5

Comparative performance is mixed: it wins on runtime or price in some comparisons, but one lab says better options exist.

Controls and UI
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.8

Controls are generally positive for simple speed selection and power modes, with the main caveat that there is no digital display.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.4

Controls and displays are usually praised for battery readouts and easy mode changes, though one reviewer disliked the default Deep Clean reset.

Convertible handheld design
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.4

The handheld conversion is useful for upholstery and handheld tasks, with one reviewer specifically saying it passed the handheld test.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.6

The handheld conversion is useful for above-floor work, but several reviewers found weight or balance limiting during longer handheld use.

Cordless convenience
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.0

Cordless convenience received a positive use-case mention for house and car cleaning.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.7

Cordless use is strongly valued for range, car cleaning, stairs, and freedom from cord limits.

Crevice / Groove Pickup (Hard Floors)
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
5.0

Crevice and groove pickup has one strong positive mention for reaching tight edges and corners.

Product 2: Shark Vertex Pro Cordless Vacuum...
2.5

Crevice and groove pickup has limited negative evidence, with one lab test requiring considerable effort and still missing debris.

Cyclone performance
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
No score yet
Product 2: Shark Vertex Pro Cordless Vacuum...
1.5

Cyclone performance is a clear weakness in one lab review, which criticized the lack of multiple cyclones for fine-dust separation.

Debris illumination
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.8

Debris illumination is a standout strength, with reviewers saying the lights revealed missed dust and lit the cleaning path well.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.0

Debris illumination is helpful overall, with floorhead lighting making dirt easier to see, though one reviewer found it only moderately helpful.

Ease of use
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.2

Ease of use is a strength overall, with reviewers calling it easy to operate, smooth to use, and convenient.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.4

Ease of use is generally strong, driven by no head swapping, easy emptying, and smooth maneuvering, despite some resistance or weight caveats.

Edge and Baseboard Cleaning (Hard Floors)
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.5

Edge cleaning is mixed: one reviewer found it left debris along walls, while another praised the crevice tool for baseboards and tight corners.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.0

Edge and baseboard cleaning is good overall, though one test found parallel wall cleaning better than head-on approaches.

Emptying and Mess Control
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
2.7

Emptying and mess control are mixed-negative, with repeated complaints about tricky removal, flying dust, dropped debris, or awkward emptying despite a few easy-empty mentions.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.0

Emptying is mixed: several reviewers found it easy and low-contact, while one had trapped hair and messy manual removal.

Filtration / Dust Containment
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
1.6

Filtration is the clearest weakness: multiple reviewers reported failed smoke tests, unsealed canisters, poor dust containment, or little filtration despite one light-use demo seeing debris trapped in the filter.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.5

Filtration and dust containment are a major strength, with multiple reviewers praising sealed HEPA performance and low particle escape.

Floorhead design
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.3

Floorhead design is mostly praised for carpet performance and agitation, though the broader evidence shows it can create hard-floor tradeoffs.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.8

The DuoClean/dual-roll floorhead is a standout, repeatedly credited for strong pickup and compensating for lower measured power.

Floorhead Seal on Hard Floors
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
2.0

Hard-floor seal evidence is negative, with one lab review calling the cleaner-head seal relatively weak and linking it to inconsistent results.

Product 2: Shark Vertex Pro Cordless Vacuum...
2.8

Floorhead seal evidence is mixed-to-negative, with good crevice pickup in one review but weaker seal concerns in others.

Hair-removal channel issues
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
1.5

Hair-removal channel evidence is negative, with a lab review saying long hair had to be manually cut away and removed.

Product 2: Shark Vertex Pro Cordless Vacuum...
2.0

Hair-removal channel issues are a recurring caveat where reviewers saw clumping or difficult detangling around non-removable parts.

Hair Pickup — Carpets
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.0

Carpet hair pickup is positive, with reviewers reporting above-average or pretty good hair pickup on carpet.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.3

Carpet hair pickup is generally strong, with pet-hair carpet performance praised despite some clumping and cleanup caveats.

Hair Pickup — Hard Floors
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.3

Hard-floor hair pickup is mixed, with one reviewer praising dust and hair pickup while another said the Extreme struggled on wood laminate hair.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.5

Hard-floor hair pickup has limited but positive evidence from a reviewer impressed by the vacuum’s hair performance across test floors.

Hair‑Wrap / Tangle Resistance
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
2.9

Hair-wrap resistance is highly mixed: some reviewers found it anti-tangle or jam-free, while others reported poor tangle resistance or hopeless wrap.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.3

Hair-wrap resistance is mostly strong, but not perfect: several reviewers praised anti-wrap performance while others found clumps or non-removable roller issues.

Hard Floor — Fine Dust Pickup
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.3

Fine hard-floor pickup is mostly positive in tests involving sand, fine debris, or light hard-floor cleaning.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.4

Hard-floor fine-dust pickup is consistently strong, with multiple reviews describing clean hard floors and easy fine-debris pickup.

Hard Floor — Large Debris Intake
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
2.6

Large hard-floor debris handling is inconsistent and often weak, with several reviews describing snowplowing, pushing, breakage concerns, or kickback despite a few positive quick tests.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.2

Large-debris intake on hard floors is mostly strong, though one reviewer saw oats flicked around and another saw edge-related debris quirks.

Headlight and LED lights
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.5

LED/headlight feedback is strongly positive, with reviewers repeatedly calling the lights bright, helpful, liked, or a favorite feature.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.1

LED headlights are helpful for visibility, although one reviewer found the white light less useful than Dyson-style green illumination.

Innovation compared to competitors
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
5.0

Innovation is positive for the price, especially self-standing storage and AutoSense-style features that reviewers considered rare or absent on more expensive vacuums.

Product 2: Shark Vertex Pro Cordless Vacuum...
2.5

Innovation versus competitors is mixed-to-negative because reviewers liked some Shark features but noted missing newer automation.

Kid-friendliness
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
5.0

Kid-friendliness received one strong positive test, with a reviewer saying it passed a kid-use test.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.5

Kid-friendliness has only one light positive mention, focused on the vacuum being cool enough that kids may like using it.

Low-profile design
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.8

Low-profile design is strong, with reviewers noting it can lie or go completely flat under furniture.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.0

Low-profile reach is mixed-to-negative, with reviewers saying it can reach under some furniture but not under low appliances or far under furniture without reconfiguration.

Maintenance requirements
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.3

Maintenance is generally positive because filters are washable and easy to rinse, though hair and dustbin mess still require attention.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.1

Maintenance is mixed: washable and accessible parts help, but filter clogging, frequent washing, and hair removal were recurring concerns.

Maneuverability and Handling
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.4

Maneuverability is consistently strong, with reviewers praising easy steering, nimble handling, low weight, and under-furniture movement.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.7

Handling is widely praised, with reviewers highlighting responsive swivel, smooth steering, and easy maneuvering around obstacles.

Noise level
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.1

Noise impressions vary from manageable to louder than average, with one review calling it quieter at lower settings and others noting elevated noise.

Product 2: Shark Vertex Pro Cordless Vacuum...
2.5

Noise is a drawback in the reviews that measured or discussed it, especially on boost or carpet settings.

Onboard tool storage
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.0

Onboard tool storage has one positive mention for the crevice tool mounting to the base and being ready quickly.

Product 2: Shark Vertex Pro Cordless Vacuum...
2.0

Onboard tool storage is a weakness because one reviewer specifically found the lack of onboard storage frustrating.

Ongoing ownership costs (bags, filters, batteries)
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
2.8

Ownership-cost evidence is limited and slightly negative because replacement filters were described as costlier than a compared Kenmore option.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.3

Ownership-cost evidence is mixed: washable filters help, but one lab warned the filter may need frequent cleaning and replacement.

Overall durability/longevity
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.1

Durability impressions are cautiously positive, with reviewers describing sturdy pieces, solid construction, and no failure after extended test abuse.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.5

Longevity evidence is limited but positive, centered on the long warranty coverage mentioned in one review.

Overall opinion
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.8

Overall opinion is mixed-positive: most reviewers recommended it for budget or quick cleaning, while one lab-style review could not fully recommend it beyond tight-budget use.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.3

Overall opinion is mostly positive, but not unanimous: many recommend it strongly, while one lab review does not recommend it due to filter clogging.

Packaging quality
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.0

Packaging received one positive mention, with the retail box and packaging described favorably.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.8

Packaging feedback is positive where discussed, with reviewers appreciating recyclable paper and cardboard packaging.

Pet-Ready Features
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.5

Pet evidence is mixed but generally favorable for hair pickup, with praise for pet hair handling and a strong caveat that filtration/sealing can matter for pet households.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.3

Pet-related evidence is mostly positive for hair pickup and pet tools, with caveats around clumping and occasional manual cleanup.

Price and Value
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.5

Value is one of the strongest themes: reviewers repeatedly framed it as affordable, budget-friendly, or very good for the price, though value depends on accepting compromises.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.9

Value is mixed-to-positive: several reviewers call it a strong mid-priced or good-value option, but others say newer or better alternatives exist.

Runtime
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.2

Runtime is context-dependent: low-power or swappable-battery use can be adequate, but high-power runtime and charging speed drew limitations.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.9

Runtime is mixed: low-power or two-battery use can be strong, but boost mode drains quickly and some reviewers wanted more battery life.

Stair Cleaning
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.1

Stair feedback is mixed: some reviewers found it usable or better with the detachable configuration, while others said it was less maneuverable or lacked a small powered stair setup.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.7

Stair cleaning is context-dependent: cordless reach helps, but the heavy cleaner head can make repeated lifting cumbersome.

Storage footprint and upright-stand stability
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.8

Storage is a major strength because reviewers repeatedly praised the self-standing design, compact storage, and upright convenience, though one noted it can be tippy.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.6

Storage is one of the clearest strengths, with repeated praise for the fold-over design and compact, stable storage posture.

Stuck resistance
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
2.0

Stuck resistance has a negative rug-related finding, with the low head sticking to certain rugs or becoming hard to push.

Product 2: Shark Vertex Pro Cordless Vacuum...
2.8

Stuck resistance is a weakness on some rugs or deep-pile carpet, where reviewers reported sticking or catching.

Suction and Airflow
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.6

Evidence is split: several reviewers measured or praised strong airflow and pickup, while controlled testing also found weak suction or below-average suction versus stronger cordless models.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.2

Reviewers generally found suction and pickup strong on floors, though one lab measured below-average raw airflow and another noted reduced suction versus top competitors.

Suitability for heavy-duty use
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
1.8

Heavy-duty suitability is weak, with reviewers saying it is not right for heavy-duty cleaning and lacks power for larger messes.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.5

Heavy-duty suitability has limited but positive evidence from a pet-heavy home reviewer who saw enough power for deeper cleaning.

Suitability for small spaces
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.4

Small-space suitability is strong, with several reviewers calling it good for small apartments, quick tasks, and tight areas.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.5

Small-space suitability has limited but positive evidence from compact fold storage and short-space convenience.

Support and Reliability
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
No score yet
Product 2: Shark Vertex Pro Cordless Vacuum...
4.5

Support evidence is limited but favorable, based on replacement parts availability and warranty coverage.

Surface safety with attachments
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
No score yet
Product 2: Shark Vertex Pro Cordless Vacuum...
4.5

Surface-safety evidence is limited but positive, based on the soft roller’s gentle buffering action on hardwood.

Tool-change simplicity
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.0

Tool changes are mostly easy, especially the crevice tool, though one reviewer found the main dustbin/body connection less smooth than the accessory.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.3

Tool changes and configuration changes were described as simple, especially lift-away transitions and snap-in cleaning parts.

Under-Furniture Pickup
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.4

Under-furniture pickup is consistently positive thanks to low-profile movement and the ability to reach under beds, furniture, and tables.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.4

Under-furniture cleaning is widely praised thanks to the MultiFLEX/flexible wand, though one reviewer disliked the feel and low-appliance reach is limited.

Upholstery / Above-Floor Pickup
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.5

Above-floor pickup is mixed: handheld and crevice use were praised, but one review found base suction below average for handheld tasks.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.4

Above-floor and upholstery cleaning is generally good, helped by attachments, handheld conversion, and lift-away-style use.

Versatility
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.5

Versatility received a positive multi-surface mention across hard floors, carpet, upholstery, and clothing lint.

Product 2: Shark Vertex Pro Cordless Vacuum...
4.7

Versatility is one of the strongest themes, with reviewers repeatedly praising multi-surface cleaning and multiple configurations.

Weight
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.8

Weight is mostly positive for handheld and general use, though some reviewers found the Extreme heavier or above-floor use more tiring.

Product 2: Shark Vertex Pro Cordless Vacuum...
3.4

Weight is one of the most repeated tradeoffs, praised as manageable by some but criticized in handheld, stair, or longer-use scenarios.