Compare Dreame R20 Cordless Vacuum vs Shark Stratos Ultralight HZ3002 Corded Stick Vacuum

P1 Dreame R20 Cordless Vacuum
P2 Shark Stratos Ultralight HZ3002 Corded Stick Vacuum

Comparison Takeaways

Dreame R20 Cordless Vacuum

Where It Has the Edge

  • Cordless convenience is 4.6 vs 2.0. Cordless use is a clear highlight: reviewers emphasize easy room-to-room carry, quick grab-and-go cleaning, and a removable battery....
  • Bin and Bag is 3.9 vs 3.2. Bagless bin capacity is often listed at about 0.6 liters. Some reviewers find it adequate, while others call...
  • Under-Furniture Pickup is 4.3 vs 3.7. Flexible or bendy adapters are praised for reaching under beds and sofas with less bending. However, some reviewers...
  • Noise level is 3.9 vs 3.5. Noise impressions vary. Some reviewers find it pleasantly quiet in standard or auto mode, while others notice a...

Shark Stratos Ultralight HZ3002 Corded Stick Vacuum

Where It Has the Edge

  • Carpet — High-Pile Pickup is 4.9 vs 3.2. High-pile carpet results are a highlight in lab testing, with near-total debris removal reported. Reviewers also note strong...
  • Clogging and debris prevention is 4.3 vs 2.8. Anti-hair-wrap design reduces clogging from hair and fibers, and reviewers describe accessible paths for clearing blockages when needed....
  • Hair Pickup — Carpets is 4.7 vs 3.6. Hair pickup on carpets is repeatedly described as excellent, including 100% pet-hair removal in some tests with only...
  • Filtration / Dust Containment is 4.7 vs 3.8. Multiple reviews highlight a sealed HEPA-style filtration system that keeps fine dust from escaping back into the air....
Average score
Product 1: Dreame R20 Cordless Vacuum
4.1
Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.2
Accessories and Tools
Product 1: Dreame R20 Cordless Vacuum
4.5

The bundle is repeatedly described as generous, typically including two main floorheads plus a mini motorized brush, crevice and brush tools, and flexible adapters for tight spaces. Storage is good overall but not always enough for every attachment at once.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.5

Included tools like a crevice tool, upholstery tool, and powered pet brush are consistently considered useful for above-floor work. Tool quality is viewed as solid, though not every accessory has a dedicated storage spot on the vacuum.

Aesthetic design and finish
Product 1: Dreame R20 Cordless Vacuum
4.3

Design is regularly praised as sleek and premium-looking, with modern gray tones, metallic accents, and a carbon-fiber style tube. Reviewers often compare the look favorably to pricier Dyson models.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.3

The vacuum is described as striking/attractive in a dark blue and silver colorway. It is mostly plastic, but still looks well thought out and premium for the category.

AI, Smart, App and Automation
Product 1: Dreame R20 Cordless Vacuum
4.5

Smart automation features are widely noted: sensors detect dust levels or floor type and automatically adjust suction, and the display provides real-time dirt feedback. No app-based control is discussed, but the on-device automation is a consistent positive.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Airflow blowback
Product 1: Dreame R20 Cordless Vacuum
4.4

Airflow and blowback control is mostly positive: one review highlights exhaust vents that direct air away from the user, and another notes minimal dust blowback when emptying carefully. Fast or forceful bin opening can still create a dust puff, so technique matters.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Area Rug Handling
Product 1: Dreame R20 Cordless Vacuum
3.7

Area rug performance depends on the rug and technique. Entrance mats and thicker rugs can leave some hair or require repeated passes, while normal rugs respond well when you use the carpet head and move slowly.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Assembly and Setup
Product 1: Dreame R20 Cordless Vacuum
4.4

Setup is typically straightforward: parts snap together, and a wall mount or dock can be installed with included hardware. Some reviewers appreciate the included drilling template, though wall mounting is still an extra step and may not suit renters.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.5

Setup is generally quick and simple, with the wand and floorhead clicking into place. The main extra step is unwrapping and installing the odor-neutralizer cartridge during initial assembly.

Battery and Charging
Product 1: Dreame R20 Cordless Vacuum
4.1

Battery is removable and can be charged on a dock or via direct plug-in depending on the setup. Reported charge times vary from about 2 hours to around 3 to 4 hours, and at least one review mentions heat buildup during use, while others report stable performance.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Bin and Bag
Product 1: Dreame R20 Cordless Vacuum
3.9

Bagless bin capacity is often listed at about 0.6 liters. Some reviewers find it adequate, while others call it smaller than rivals and say it fills quickly with pet hair, leading to more frequent emptying in larger or shedding-heavy homes.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
3.2

The dust cup is repeatedly described as compact (around 0.75–0.79 qt/L-class), which can mean frequent trips to the bin in pet-heavy homes. Capacity is one of the most common complaints despite strong cleaning performance.

Build quality and durability
Product 1: Dreame R20 Cordless Vacuum
4.0

Build quality is generally described as solid with premium plastics and minimal wobble in main joints. A few reviewers point out rough edges on certain ergonomics and that some accessories feel flimsier than the main vacuum body.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.6

Reviewers generally describe the build as solid for the price, with attachments that feel well made. It is largely plastic, but testers did not flag obvious fragility in normal use.

Carpet — High-Pile Pickup
Product 1: Dreame R20 Cordless Vacuum
3.2

High-pile and shag carpet is the weakest surface. Multiple reviewers report heavy drag, the need for many passes, or limited improvement versus cheaper models, making it a poor match for thick rugs in carpet-dominant homes.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.9

High-pile carpet results are a highlight in lab testing, with near-total debris removal reported. Reviewers also note strong pet-hair extraction on deeper carpet when using the carpet mode.

Carpet — Low-Pile Pickup
Product 1: Dreame R20 Cordless Vacuum
4.2

Low-pile carpet cleaning is generally strong, commonly requiring around two passes in testing. Using max power improves results, and most reviewers see it as competitive for everyday rugs and low-pile carpet.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.0

Low-pile carpet performance is generally strong but not always perfect; some lab results showed a little residue left behind, especially for finer particles. It remains effective overall, but it is not the very best case surface for this model.

Carpet — Medium-Pile Pickup
Product 1: Dreame R20 Cordless Vacuum
3.9

On medium-pile carpet, results are good but inconsistent: some reviewers report strong pickup in one or two passes, while others need more passes for fine dust and see pet hair left behind. Carpet resistance can also make the vacuum harder to push unless airflow adjustments are used.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.5

Medium-carpet and general carpet cleaning is described as powerful, including strong deep-clean results for embedded grit and solid pickup in one to two passes. Some users still report a bit more push effort on carpet compared with hard floors.

Clogging and debris prevention
Product 1: Dreame R20 Cordless Vacuum
2.8

Clog resistance is mixed. Some tests show the vacuum can clog when tackling high volumes of cereal, lentils, or similar debris, requiring manual clearing of the inlet. Other reviewers report no issues in normal use and suggest slower, smaller passes reduce clogging.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.3

Anti-hair-wrap design reduces clogging from hair and fibers, and reviewers describe accessible paths for clearing blockages when needed. Some tests still saw larger debris get pushed or scattered, which can slow cleanup in certain scenarios.

Comparative performance
Product 1: Dreame R20 Cordless Vacuum
4.1

Compared with Dyson and other midrange competitors, the R20 is often portrayed as a credible alternative for hard floors and general cleaning, sometimes offering better included tools and easier maintenance. Several reviewers still prefer Dyson for deep carpet work, smoother attachments, or specialized anti-tangle brushes.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.4

Compared with other stick vacuums, several reviews say it performs unusually close to a full-size upright, especially for fine dust and hair. The tradeoff versus competitors is convenience: cord management, a small dust cup, and sometimes less nimble floorhead behavior.

Controls and UI
Product 1: Dreame R20 Cordless Vacuum
4.2

The LCD display and two-mode system are usually considered easy to understand, showing battery percentage and dirt or mode indicators. Common complaints include an over-sensitive trigger, an uncomfortable finger guard in one review, and the screen or controls being awkward to reach one-handed for some users.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.4

Controls are intentionally minimal, typically a power button plus a mode switch for hard floor vs carpet with a simple indicator display. Reviewers generally liked the simplicity and clear mode feedback.

Convertible handheld design
Product 1: Dreame R20 Cordless Vacuum
No score yet
Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.5

Multiple reviews emphasize the removable handheld unit for above-floor cleaning, making it easy to tackle upholstery, stairs, shelves, and ceilings. Handheld performance is generally described as strong, though the cord and balance can make high-up cleaning less convenient for some.

Cord length
Product 1: Dreame R20 Cordless Vacuum
No score yet
Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.3

The cord is consistently reported around 30 feet, providing good reach across rooms and even small apartments without frequent outlet changes. Most reviewers call the length a meaningful advantage over typical short-cord vacuums.

Cordless convenience
Product 1: Dreame R20 Cordless Vacuum
4.6

Cordless use is a clear highlight: reviewers emphasize easy room-to-room carry, quick grab-and-go cleaning, and a removable battery. A few drawbacks include charging design quirks and reliance on a wall mount for neat storage.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
2.0

Because this is a corded stick vacuum, it cannot offer cordless freedom for quick grab-and-go cleans. Reviewers frame the upside as consistent suction and effectively unlimited runtime, at the cost of always managing the cord.

Cord management
Product 1: Dreame R20 Cordless Vacuum
No score yet
Product 2: Shark Stratos Ultralight HZ3002 Corded...
3.9

The wand includes hooks/guides for wrapping and storing the cord, which helps for storage. During cleaning, multiple reviewers still complain the cord can catch on furniture or become a tripping hazard, so in-use management requires attention.

Crevice / Groove Pickup (Hard Floors)
Product 1: Dreame R20 Cordless Vacuum
4.6

Performance in grooves and tight gaps is rated highly, both via floorhead design and with crevice tools. Reviewers cite effective pickup from cracks and gaps, helping with baseboards, corners, and hard-to-reach areas.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.3

Crevice and groove pickup results are described as above average in testing, supporting good performance in floor seams and tight gaps. Combined with the head seal, it tends to pull debris from cracks better than many sticks.

Cyclone performance
Product 1: Dreame R20 Cordless Vacuum
4.0

Cyclone separation is generally described as effective enough to maintain strong suction, but a few reviewers note that fine or thick dust can stick inside the cyclone area and needs periodic cleaning. Hair clumps can also lodge in the bin pathway, making maintenance more hands-on for shedding homes.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Debris illumination
Product 1: Dreame R20 Cordless Vacuum
4.0

Blue LEDs or wide-angle laser-style lighting helps reveal dust and track where you have cleaned, with several reviewers finding it genuinely useful. Limitations include reduced effect in bright light and, in some kits, illumination being present on only one of the main floorheads.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Ease of use
Product 1: Dreame R20 Cordless Vacuum
4.2

Ease of use is frequently praised thanks to low weight, simple mode controls, and quick tool swaps, making it a convenient grab-and-go stick. Reported drawbacks include an over-sensitive trigger for some, occasional awkward ergonomics with larger hands, and extra effort on thick carpet or when clearing clogs.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.3

Overall usability is widely rated as high thanks to simple controls, strong cleaning results in few passes, and a lightweight feel. The main usability downsides mentioned are the small dust cup, occasional stickiness in parts (cup or floorhead), and managing a long cord while moving room to room.

Edge and Baseboard Cleaning (Hard Floors)
Product 1: Dreame R20 Cordless Vacuum
4.4

Edge cleaning on hard floors is generally good, with reviewers noting it can clean close to walls and baseboards. Larger debris can sometimes scatter toward the skirting on the first pass, but is usually captured with a follow-up pass or careful aiming.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.6

Edge and baseboard performance is repeatedly described as strong, including good cleaning along walls and into corners. This is a consistent strength in both lab notes and real-world use.

Emptying and Mess Control
Product 1: Dreame R20 Cordless Vacuum
3.6

Emptying is simple via a bottom flap, but mess control varies. Some reviewers report minimal blowback, while others say the flap opens forcefully and can puff or shoot dust if you are not careful; pet-hair clumps may need to be pulled out by hand.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
3.8

Emptying is straightforward in concept with a removable cup and top-opening design, and some reviewers found it simple. Others report the cup is small, needs frequent emptying, and can feel fiddly or sticky to remove and dump cleanly.

Filtration / Dust Containment
Product 1: Dreame R20 Cordless Vacuum
3.8

Most reviewers report good dust containment from a multi-stage system and note little dust exhausting back into the room. HEPA support is inconsistent across the review set, with some sources calling it non-HEPA or unclear and others referencing HEPA without specifics, so allergy buyers should verify local specs.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.7

Multiple reviews highlight a sealed HEPA-style filtration system that keeps fine dust from escaping back into the air. Accessing and rinsing filters is manageable, though at least one tester noted the HEPA filter location is not obvious without the manual.

Floorhead design
Product 1: Dreame R20 Cordless Vacuum
4.1

Floorhead design gets a lot of attention in the reviews: the multi-surface head with a debris gate helps with larger particles, and the soft roller head is praised for hard floors. Downsides include illumination not always being on both heads, some heads feeling tall or limited in swivel, and reports of pieces getting caught around the roller or wheels in heavy-debris tests.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.4

The DuoClean-style head with PowerFins/HairPro earns high marks for pickup and hair handling, and the head includes LEDs and an odor-cartridge compartment. Some reviewers still note the head can feel bulky or not tilt as smoothly as expected.

Floorhead Seal on Hard Floors
Product 1: Dreame R20 Cordless Vacuum
No score yet
Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.4

Crevice and seal-related testing suggests a strong seal on hard floors, which supports efficient pickup without excessive blowback. This is cited as a factor behind its above-average crevice results.

Hair Pickup — Carpets
Product 1: Dreame R20 Cordless Vacuum
3.6

On carpets, especially medium or high pile, pet hair pickup is mixed and can leave a noticeable amount behind even after several passes. It performs better on low-pile surfaces than on thick rugs.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.7

Hair pickup on carpets is repeatedly described as excellent, including 100% pet-hair removal in some tests with only a couple of passes. Real-world users also report strong performance on heavy dog-hair messes.

Hair Pickup — Hard Floors
Product 1: Dreame R20 Cordless Vacuum
4.7

Hair pickup on hard floors is repeatedly excellent, often in a single pass, and several reviewers note little to no hair wrap on the main roller during these tests.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Hair‑Wrap / Tangle Resistance
Product 1: Dreame R20 Cordless Vacuum
4.3

Anti-tangle performance is generally strong on the main rollers, with several reviewers reporting no tangles after whole-home cleans. Some mention hair can collect on support wheels or along edges, so periodic brush and wheel cleaning is still needed.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.5

HairPro/self-cleaning design prevents most tangles and helps keep the brushroll moving freely. A small amount of hair can still remain around the center in some tests, but overall tangle resistance is above average.

Hard Floor — Fine Dust Pickup
Product 1: Dreame R20 Cordless Vacuum
4.5

Hard-floor fine dust pickup is consistently a standout, with multiple tests reporting one-pass removal of flour, sugar, and dust even from floor grooves and cracks. The soft roller head is frequently praised for this job.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.7

Fine dust pickup is consistently excellent, with tests reporting near-complete removal of powders/sugar and strong fine-dust containment in the bin. Several reviewers call it among the best-performing Shark sticks for fine debris.

Hard Floor — Large Debris Intake
Product 1: Dreame R20 Cordless Vacuum
4.1

Large debris pickup on hard floors is mixed but generally good with the multi-surface head and debris gates. Some stress-tests show pieces can jam or cause clogs when you take on large piles too fast, particularly with the soft floorhead.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.2

Large-debris pickup on hard floors is mixed across tests: some reports show strong intake, while others saw rice/cereal get pushed around or trapped at the sides of the head. It may take extra passes or angles for chunky spills on smooth flooring.

Headlight and LED lights
Product 1: Dreame R20 Cordless Vacuum
No score yet
Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.3

Integrated LED headlights are frequently praised for making dust and hair easier to spot in dim areas. Reviewers consider the lights a practical, not gimmicky, aid during daily cleaning.

Innovation compared to competitors
Product 1: Dreame R20 Cordless Vacuum
3.3

Innovation is described as evolutionary rather than revolutionary. Reviewers like that it packs most modern cordless-vac features into a cheaper package, but note missing or unclear premium extras such as a confirmed HEPA spec, auto-empty dock, or true free-standing storage.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Maintenance requirements
Product 1: Dreame R20 Cordless Vacuum
4.2

Maintenance is generally easy: components and filters are removable, and rinsing or periodic washing is commonly recommended every few months. The main downside is that hair and high-volume debris can require more frequent clearing to prevent loss of performance.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.2

Maintenance is generally described as easy: empty the cup, rinse filters on a schedule, and check for blockages. Odor-neutralizer replacement (often cited around a 6-month cadence) is an extra ongoing task for those who want that feature.

Maneuverability and Handling
Product 1: Dreame R20 Cordless Vacuum
4.1

Handling is often rated highly on hard floors thanks to light weight and strong steering, including near 90-degree swivel in at least one review. On carpet, high suction can create drag and some heads have limited swivel or feel wiggly when reaching far or under furniture.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
3.9

Handling is frequently praised as light and controllable, with good maneuvering for a corded stick. However, experiences vary: some found it slightly harder to push on carpet or more upright-like and less nimble, with occasional stiffness in the floorhead tilt.

Noise level
Product 1: Dreame R20 Cordless Vacuum
3.9

Noise impressions vary. Some reviewers find it pleasantly quiet in standard or auto mode, while others notice a whiny or higher-pitched tone, especially at higher power. Max or turbo use can be noticeably louder than average for the category.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
3.5

Noise is reported as moderate to loud depending on the test: one lab measured roughly 69–70 dB, while another recorded mid/high‑70s dB. It can sound closer to an upright than a quiet cordless stick.

Odor control
Product 1: Dreame R20 Cordless Vacuum
No score yet
Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.5

Odor-neutralizing technology is a standout perk for many reviewers, often leaving floors and carpets smelling fresher. A minority view it as more of a pleasant scent than true neutralization, and it adds a periodic cartridge replacement task.

Onboard tool storage
Product 1: Dreame R20 Cordless Vacuum
3.9

The wall mount or dock typically includes slots for accessories, helping keep the kit organized. Multiple reviewers note it may not hold every tool at once, and a second main floorhead sometimes has to be stored separately.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
3.8

An onboard storage clip can hold smaller tools like the crevice and upholstery tools for quick access. Larger accessories such as the powered pet brush may still need separate storage.

Ongoing ownership costs (bags, filters, batteries)
Product 1: Dreame R20 Cordless Vacuum
3.6

The main ongoing cost mentioned is batteries: reviewers like that the pack is removable and can be replaced, but note spare batteries can be expensive. Other recurring consumable costs are not heavily discussed in the reviews.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Overall durability/longevity
Product 1: Dreame R20 Cordless Vacuum
3.3

Long-term durability is not fully proven in the reviews, but a few concerns appear: heat buildup or overheating in some use, questions about the carbon-style tube flexing, and a couple of accessories that feel less sturdy. Core plastics and joints are usually described as solid.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Overall opinion
Product 1: Dreame R20 Cordless Vacuum
4.2

Overall sentiment is mostly positive: strong suction, great hard-floor cleaning, useful smart sensing, and a strong accessory bundle are common praise points. The most repeated drawbacks are weaker performance on thick carpet, occasional clogging with big debris, and uncertainty around HEPA filtration and heat management.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Packaging quality
Product 1: Dreame R20 Cordless Vacuum
4.5

Packaging is frequently praised as well organized, with compartments that keep parts from rattling and help protect accessories during shipping.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Pet-Ready Features
Product 1: Dreame R20 Cordless Vacuum
4.3

Well suited for pet owners on hard floors: multiple reviews report one-pass pickup of dog and cat hair with little wrap, and the mini motorized brush is praised on upholstery. For carpet-heavy pet homes, several testers report fur remains embedded in medium or high-pile carpet.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.6

Testers repeatedly call out excellent pet-hair performance, including strong pickup and a powered pet tool for furniture and stairs. The main limiter for heavy shedders is the small dust-cup capacity, not the hair pickup itself.

Price and Value
Product 1: Dreame R20 Cordless Vacuum
4.1

Value is a recurring strength, especially when discounted well below Dyson alternatives. Some reviewers still label it premium or less compelling at full list price, but overall sentiment leans toward strong performance-per-dollar.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.2

Value is often rated positively for the cleaning performance and features, especially when discounted. At full list price, at least one review argues you could buy a more powerful upright or a more convenient cordless alternative, so deals matter.

Runtime
Product 1: Dreame R20 Cordless Vacuum
4.1

Default or auto-mode runtime is usually above average but varies widely by floor type and how often sensors boost power. Reported real-world figures range from roughly 40 to 60 minutes in some tests to around 80-plus minutes in others. Boost or turbo runtime is short across reviews, commonly described as roughly 7 to 15 minutes. It works best as a burst mode for carpets or spot cleaning rather than a whole-home setting.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Self-propel feature
Product 1: Dreame R20 Cordless Vacuum
No score yet
Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.3

At least one hands-on review noted it can feel like it slightly propels itself on carpet, making forward passes easier. This is not universally highlighted, but it may reduce perceived effort on some rugs.

Stair Cleaning
Product 1: Dreame R20 Cordless Vacuum
No score yet
Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.4

With the handheld configuration and powered pet tool, reviewers report it works well on stairs and other tight areas. Long reach with the wand plus a crevice tool helps for corners and step edges.

Storage footprint and upright-stand stability
Product 1: Dreame R20 Cordless Vacuum
3.5

Several reviews indicate it is designed around a wall mount or dock and does not reliably stand on its own. That can be great for tidy storage if you can drill, but less convenient for renters unless you buy a separate stand or lean it safely.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
3.5

Several reviewers note it does not naturally stand upright on its own and storage can feel awkward. Others point out workarounds such as clipping the handvac into a stand/rest position or using storage hooks for a more upright footprint.

Suction and Airflow
Product 1: Dreame R20 Cordless Vacuum
4.5

Reviews consistently describe strong suction, often citing around 190 air watts and roughly 27,000 to 29,000 Pa in testing. On hard floors it clears fine dust and everyday debris quickly, though a few testers note occasional second passes and reduced effectiveness when the airflow path clogs with large debris.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.5

Reviews describe strong real-world cleaning power for a corded stick, helped by above-average airflow at the head. One lab measured suction lower than average even though pickup remained excellent, so raw suction metrics are a slight mixed bag.

Suitability for heavy-duty use
Product 1: Dreame R20 Cordless Vacuum
2.6

The R20 is best described as light-to-moderate duty. It can handle heavier messes, but some tests show it needs slower technique and may clog or struggle when vacuuming large piles quickly, making it less ideal for very busy, messy households.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
No score yet
Tool-change simplicity
Product 1: Dreame R20 Cordless Vacuum
4.2

Attachments generally click in with a clear latch and release button, making swaps quick. However, at least one comparison notes Dyson-style fittings feel smoother, and some smaller accessories feel less refined than the core parts.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.4

Switching between floor use and attachments is generally described as quick and straightforward, with tools clipping on easily. Some accessories are friction-fit, but reviewers still found swapping parts hassle-free overall.

Under-Furniture Pickup
Product 1: Dreame R20 Cordless Vacuum
4.3

Flexible or bendy adapters are praised for reaching under beds and sofas with less bending. However, some reviewers still find deep under-furniture steering difficult depending on the floorhead and reach distance.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
3.7

Under-furniture reach varies by home: some reviewers praise the flexible head for getting far under furniture, while others found the head height or handle geometry limited access under low-profile pieces.

Upholstery / Above-Floor Pickup
Product 1: Dreame R20 Cordless Vacuum
4.5

Above-floor performance is a strong point when using the mini motorized brush and detail tools. Reviewers report excellent results on sofas, pet beds, shelves, and stairs, though some mention needing firm back-and-forth motion for best results.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.4

Above-floor cleaning is a consistent strength: reviewers report strong pet-hair removal on upholstery and good reach for cobwebs and shelves using the handheld unit and attachments. The main limitations are cord management and, for some users, balancing the handheld when cleaning high up.

Versatility
Product 1: Dreame R20 Cordless Vacuum
4.4

Versatility is repeatedly emphasized, with handheld conversion, multiple floorheads, and specialty tools for furniture, corners, and under-bed cleaning. Most reviewers see it as an all-in-one package for mixed household tasks.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.6

The modular build and included tools make it capable of floors, stairs, upholstery, and even cobwebs. Reviews consistently frame it as a do‑everything whole-home cleaner as long as you accept the cord.

Weight
Product 1: Dreame R20 Cordless Vacuum
4.5

Most reviewers describe the R20 as lightweight and less tiring than many rivals. Reported weights vary by source and configuration, but the consistent takeaway is easy carry and lower arm fatigue for longer sessions.

Product 2: Shark Stratos Ultralight HZ3002 Corded...
4.3

Weight is commonly described as light for a corded stick (roughly 8.7–9 lb assembled, around 3 lb handheld). Reviewers still note the cord can add perceived heft or awkwardness when cleaning higher surfaces.