Average score
P1
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
3.6
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.2
Accessories and Tools
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.0
Tool coverage is generally solid, especially on Cat & Dog variants, but reviewers note some sets are average or require stepping up to a pricier variant.
Aesthetic design and finish
P1
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.5
One reviewer liked the modern-looking colors and design.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.8
Reviewers who discussed appearance liked the Triflex’s looks, calling it sleek, presentable, and more polished than many cordless competitors.
AI, Smart, App and Automation
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.5
Automation evidence centers on surface sensing, which reviewers find helpful for adapting brush power across flooring types.
Airflow blowback
P1
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.
P2Product 2: Miele Triflex HX1 Stick Vacuum
No score yetArea Rug Handling
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.0
Area-rug handling is mixed in one review, where doormats needed gentler suction to avoid ruckling.
Assembly and Setup
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.8
Assembly and configuration changes are praised as simple and exceptionally easy by hands-on reviewers.
Battery and Charging
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.7
Battery and charging are broadly positive thanks to removable/swappable batteries, with the Pro variant especially strong for uninterrupted cleaning.
Bin and Bag
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
2.9
Dust-bin feedback is mixed to negative overall: some praise hygienic dumping, but multiple reviewers complain that the 0.5-liter bin is small.
Build quality and durability
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.0
Build quality draws strong praise for sturdy materials and testing, but durability evidence is tempered by one review reporting smoke/burning from the brush head.
Carpet — High-Pile Pickup
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
5.0
High-pile carpet evidence is strong, with reviewers praising dense-pile and deep-pile performance and medium-to-high pile capability.
Carpet — Low-Pile Pickup
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.5
Low-pile carpet evidence is limited and mixed, with one lab review reporting above-average but not class-leading short-pile pickup.
Carpet — Medium-Pile Pickup
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.9
Carpet performance is a recurring strength, with reviewers praising clean results, deep-cleaning scores, and medium-to-high pile capability.
Clogging and debris prevention
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.2
Debris-protection evidence is limited but positive, with one review noting protection that keeps the motor safe from occasional larger objects.
Comparative performance
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.3
Comparative performance is mostly favorable versus competing cordless vacuums, though one lab review says raw suction trails Dyson and LG rivals.
Controls and UI
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.0
Controls are mostly considered simple, with sliders and continuous running praised, though the lack of runtime display is a drawback.
Convertible handheld design
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.9
The convertible design is a major strength, with reviewers valuing the stick, upright, and handheld configurations for different tasks.
Cordless convenience
P1
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.0
Cordless convenience received a positive use-case mention for house and car cleaning.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.8
Cordless convenience is strongly praised, especially for quick cleanups, whole-home movement, and car cleaning without finding an outlet.
Crevice / Groove Pickup (Hard Floors)
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.5
Crevice and groove pickup is positive in tests that credit the Triflex’s seal and airflow.
Debris illumination
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.5
Debris illumination is useful for seeing hair, dust, and dirt under furniture or in darker areas, though usefulness depends on surface type.
Ease of use
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.8
Ease of use is strongly positive where reviewers describe the vacuum as simple, pleasant to clean with, and easy to move.
Edge and Baseboard Cleaning (Hard Floors)
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.8
Edge and baseboard cleaning are praised by reviewers who tested corners and edges, with little need to switch to a crevice tool.
Emptying and Mess Control
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.6
Emptying is divisive: some reviewers call it hygienic or easy, while others find it fiddly, clunky, or overly complicated.
Filtration / Dust Containment
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.2
Filtration is praised in several reviews for dust containment and odor-free cleaning, but one fog test found visible leaks, creating a clear split.
Floorhead design
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.1
Floorhead design is useful for coverage and surface handling, but low clearance and portability tradeoffs hurt large-debris and tight-space performance.
Floorhead Seal on Hard Floors
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.9
Floorhead seal is generally praised for suction and crevice pickup, though one reviewer says the seal trades off against large-pile debris efficiency.
Hair-removal channel issues
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.5
Hair-removal maintenance is viewed positively where the brush roller can be removed or cut clean, though this does not mean tangles are prevented.
Hair Pickup — Carpets
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.8
Carpet hair pickup is consistently praised, especially for cat, dog, and human hair on carpets and rugs.
Hair Pickup — Hard Floors
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
5.0
Hard-floor hair pickup receives one strong supporting review that explicitly says the vacuum was efficient on both carpet and hardwood floors.
Hair‑Wrap / Tangle Resistance
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
1.8
Hair-wrap resistance is a weakness, with reviewers reporting tangles, poor anti-wrap performance, and even overheating linked to stray hair.
Hard Floor — Fine Dust Pickup
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.9
Hard-floor fine-debris performance is generally positive, with several reviewers praising fine dust, flour, or bare-floor pickup.
Hard Floor — Large Debris Intake
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.9
Large-debris hard-floor pickup is mixed: some reviewers saw excellent cereal-style pickup, while others found oats or Cheerios snowplowed.
Headlight and LED lights
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.5
LED/headlight feedback is positive overall for revealing dust and hair, with one reviewer noting it helps more on hard floors than carpet.
Innovation compared to competitors
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
5.0
Innovation is praised where reviewers highlight the 3-in-1 format and Miele’s attempt to solve common cordless vacuum problems.
Kid-friendliness
P1
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.
P2Product 2: Miele Triflex HX1 Stick Vacuum
No score yetLow-profile design
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.4
Low-profile access is mixed: Reach mode helps under furniture, but the bulky steering component limits low-clearance fit.
Maintenance requirements
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.5
Maintenance is mixed, from simple filter/brush care to complaints about stiff filter removal and frequent washing.
Maneuverability and Handling
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.3
Handling is mostly positive due to the balanced upright configuration and control, though one tester found steering less sharp than a competitor.
Noise level
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.8
Noise feedback is split: several reviewers call it quiet or average around 70 dB, while one found the main nozzle annoyingly loud.
Onboard tool storage
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.8
Onboard or mount-based tool storage receives positive evidence from one review that liked the built-in nozzle lineup.
Ongoing ownership costs (bags, filters, batteries)
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.7
Ownership-cost evidence is favorable where filters are described as lifetime or non-replacement parts, though battery costs are not deeply reviewed.
Overall durability/longevity
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.0
Long-term durability is mixed: one review reports solid performance after extended daily use, while another reports a replacement electrobrush after heavy use.
Overall opinion
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.4
Overall opinion is positive across all reviews, but the praise is usually paired with caveats about price, bin size, weight, or specific performance limits.
Packaging quality
P1
Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
4.0
Packaging received one positive mention, with the retail box and packaging described favorably.
P2Product 2: Miele Triflex HX1 Stick Vacuum
No score yetPet-Ready Features
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.9
Pet-focused evidence is positive, with reviewers praising pet-hair pickup and the Cat & Dog tools, though this does not remove the separate hair-wrap caveat.
Price and Value
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.3
Value is polarizing: some reviewers say the Triflex is worth investing in, while others call it expensive or overpriced for the performance.
Runtime
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.2
Runtime is generally strong, especially with swappable batteries and medium/low settings, but high-power runtime is much shorter.
Stair Cleaning
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
5.0
Stair cleaning receives positive evidence from one hands-on review, especially in handheld mode with the powered floorhead.
Storage footprint and upright-stand stability
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.7
The freestanding/upright storage advantage is one of the most consistently praised design features across reviews.
Stuck resistance
P1
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.
P2Product 2: Miele Triflex HX1 Stick Vacuum
No score yetSuction and Airflow
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.3
Reviewers mostly praise the Triflex HX1 for strong suction and airflow, especially on carpets and fine debris, though one tester measured weaker suction than expected.
Suitability for heavy-duty use
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.8
Heavy-duty suitability is mixed: one review compares it favorably with heavy-duty canisters, while another reports problems after hardcore use.
Suitability for small spaces
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.5
Small-space suitability is mixed: the vacuum stores compactly, but the wide nozzle can struggle in narrow spaces.
Support and Reliability
P1Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
No score yet
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.9
Support evidence is positive, with service network and next-day replacement experiences helping offset durability concerns.
Surface safety with attachments
P1Product 1: BLACK+DECKER Powerseries Extreme Cordless Vacuum...
No score yet
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.0
Surface-safety evidence is limited and cautionary, with one reviewer warning care is needed on wood floors.
Tool-change simplicity
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.3
Tool and brush changes are described positively, with quick-release latches and a removable brush roll making changes and cleaning simpler.
Under-Furniture Pickup
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.4
Under-furniture cleaning is mostly positive in stick/reach mode, though some modes and bulky components limit low-clearance access.
Upholstery / Above-Floor Pickup
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.5
Above-floor and upholstery use is well supported, with reviewers praising car, sofa, curtain, ceiling, and pet-hair cleaning applications.
Versatility
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
4.8
Versatility is consistently strong, with reviewers emphasizing multiple modes, fewer separate vacuums, and broad cleaning use cases.
Weight
P1
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.
P2
Product 2: Miele Triflex HX1 Stick Vacuum
3.3
Weight feedback is sharply mixed: the upright configuration feels balanced, but handheld or high cleaning can feel heavy and tiring.