Cordless vacuums / Compare

Bosch Unlimited 9 vs Dreame Z20 Station

A

Product A: Bosch

Unlimited 9

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B

Product B: Dreame

Z20 Station

37 of 65 known

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Only differences

ABosch Unlimited 9

BDreame Z20 Station

General

4 of 9 differ

Series

Unlimited1Maker product pagebosch-home.com/us/en/category/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9Read 14 October 2026Bosch lists the Unlimited 9 under its Unlimited cordless line next to the Unlimited 10.

Not available

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

BCS931WUC, BBS932GUC, BXS93SBUC, BKS931BA, BBS931WBA, BBS921TBA2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026US graphite model BBS932GUC. The page lists the same data keys for BCS931WUC and BXS93SBUC.9Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BBS931WBA.pdfRead 14 October 2026German spec sheet for BBS931WBA, white. Same 1300 x 250 x 216 mm, 80 dB(A), 60 min and 3.26 kg ready-to-use weight.13Maker product pagebosch-home.com/de/de/product/staubsauger/kabellose-handstaubsauger/unlimited/unlimited-9-akku-staubsauger/BBS921TBARead 14 October 2026German Bosch store page for BBS921TBA, Unlimited 9 green, GTIN 4242005469482, 3 h charging time, box list in its row.

010101AB000486, VZV25A1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026US store SKU 010101AB000486 from the product data. The Canada store lists the same SKU. The EU model VZV25A is from the manual.3Maker product pageca.dreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Store product data lists SKU 010101AB000486, the same as the US store.4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Specification table lists the vacuum cleaner model VZV25A.

GTIN / EAN

4242005550548, 4242005550555, 4242005550562, 4242005469505, 4242005469475, 42420054694822Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page data lists GTIN 4242005550555 for BBS932GUC, 4242005550548 for BCS931WUC and 4242005550562 for BXS93SBUC.11Maker product pagebosch-home.com/de/de/product/staubsauger/kabellose-handstaubsauger/unlimited/unlimited-9-akku-staubsauger/BKS931BARead 14 October 202612Maker product pagebosch-home.com/de/de/product/staubsauger/kabellose-handstaubsauger/unlimited/unlimited-9-akku-staubsauger/BBS931WBARead 14 October 2026German Bosch store page for BBS931WBA, GTIN 4242005469475, 3 h charging time, box list in its row.

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

Not available

Status

Available1Maker product pagebosch-home.com/us/en/category/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9Read 14 October 2026US category page shows three Unlimited 9 models marked In Stock with Add to cart.

Available1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026US page shows an add to cart button at 359.99 USD against a regular price of 799.99 USD on 2026-10-15. No launch price is stored, since the regular price is not shown as a launch MSRP.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$4993Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BCS931WUCRead 14 October 2026US maker page for the white model shows 499 USD, which is the same price that Tom's Guide gave at the January 2026 launch. The graphite model shows 569 USD and the black two-battery model 599 USD, and these are not stored as launch prices.14Press articletomsguide.com/home/home-appliances/bosch-just-released-two-new-cordless-vacuums-and-they-have-one-smart-feature-you-wont-get-with-shark-or-dysonRead 14 October 2026CES 2026 launch report says Bosch's Unlimited 9 and 10 are available in the US and pricing starts at 499 USD for the Unlimited 9, which is the white model.

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US, DE1Maker product pagebosch-home.com/us/en/category/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9Read 14 October 2026US category page. The German store pages are listed below.11Maker product pagebosch-home.com/de/de/product/staubsauger/kabellose-handstaubsauger/unlimited/unlimited-9-akku-staubsauger/BKS931BARead 14 October 2026German Bosch store page for BKS931BA, white, with GTIN 4242005469505, 3 h charging time, no quick charger and the box list in the BKS931BA row.

US, CA, EU1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026US store. Canada from the Canada store page. EU from the manual.3Maker product pageca.dreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Canada store page for the Z20 Station.4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026EU declaration of conformity and EU manual.

ColoursiThe maker's own colour names

White, Graphite, Black, Tasman green1Maker product pagebosch-home.com/us/en/category/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9Read 14 October 2026US models are Unlimited 9 Black, Graphite and White. The product pages call the graphite color Dark cream in the color field and in the spec sheet.10Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BBS921TBA.pdfRead 14 October 2026German spec sheet for BBS921TBA, titled Unlimited 9, green. Same runtimes and 3.26 kg ready-to-use weight. The page color field says Tasman green.

Not available

Form factoriA 2-in-1 stick converts to a handheld vacuum. A stick does not. Handheld means a handheld vacuum sold without a long wand.

Stick, converts to handheld6Owner's manualmedia3.bsh-group.com/Documents/8001366453_A.pdfRead 14 October 2026Section 7.9 and 7.10 place accessories on the suction pipe or directly on the appliance's connecting piece, so the appliance is also used as a handheld.

Stick, converts to handheld1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Page images show the vacuum body used as a handheld vacuum with the combination tool, the rotating soft dusting brush and the extension hose, and the spec table lists a vacuum body weight apart from the hub. The package list has an extension rod for stick use. The page heading calls it a cordless stick vacuum.

Wet cleaning headiA floor head that mops or washes the floor with water. Optional accessory means the maker sells a compatible wet head separately. Optional accessory only when the maker's page for this exact model lists a wet head as compatible. A separate Submarine edition does not make the base model optional accessory. A kit sold with the wet head, such as an Aqua kit, is included in its variant row.

None4Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdfRead 14 October 2026Optional accessories list only batteries, a fast charger, a Hard Floor Soft Brush with LED Lights and a Mini Power Nozzle. No wet head is offered.

None1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026The package list has no wet head and the page describes dry cleaning only.

Suction and power

5 of 8 differ

Suction power (claimed)iThe maker's highest suction power claim in air watts. Some makers write W for suction power. Test standard, mode and tool differ by maker. Regional pages can state different figures.

Not available

250AW1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Spec table lists suction power 250AW. Footnote says 250AW and 140,000RPM are based on in-house lab data and actual performance may vary. No test standard is named.

Max suction pressure (claimed)iThe maker's highest suction pressure claim in pascals. A claim in kPa is multiplied by 1000. Air watts are a different measure.

Not available

26,000Pa2Maker product pagelv.dreametech.com/en/products/dreame-z20-stationRead 15 October 2026Spec table lists suction power 26,000 Pa. The same page lists 250AW in its features.

Rated poweriElectrical power of the vacuum as the maker publishes it, called motor power, rated power or wattage. It is not suction power in air watts. It is the maximum input power of the motor unit. A nozzle's own power is not added. The power of the charger or the dock does not count. When the maker states a rated figure and a higher maximum, such as LG's 350 W rated and 650 W in Turbo mode, the maximum is stored and the rated figure goes in the source note.

Not available

640W5Owner's manualmediaexpert.pl/products/files/72/7228960/instrukcja-obslugi-DREAME-Z20-Station-wer2026.pdfRead 15 October 2026Dreame EU manual hosted by a retailer, built March 2026 as revision A05. English page 12 lists the vacuum cleaner VZV25A rated power 640 W at 29.6 V. The older revision A03 on Dreame's global page lists 715 W for the same model. The newer figure is stored. The Omni-Brush has its own 70 W and the mini-brush 20 W, and the hub is 1050 W, which are not added.

Motor speed (claimed)iHighest motor speed the maker claims.

Not available

140,000rpm1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Spec table lists motor speed 140,000RPM, in-house lab data.

Power modesiThe maker's names for the power settings, such as "Eco", "Auto" and "Boost".

Eco, Auto, Turbo2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page lists Performance levels 3 and Auto mode. The spec sheet names Auto, Turbo and Eco.4Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdfRead 14 October 2026Standard cleaning modes Auto, Turbo, Eco.6Owner's manualmedia3.bsh-group.com/Documents/8001366453_A.pdfRead 14 October 2026Section 7.7: Eco, Auto and Turbo.

Eco, Auto, Turbo4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Display screen section lists Eco, Auto and Turbo, switched with the suction level switch. Auto is the default.

Automatic power adjustmentiThe vacuum changes suction by itself based on floor type or the amount of dirt.

Yes2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page lists Auto mode: yes. The German spec sheet says the nozzle adjusts power by floor type in Auto.6Owner's manualmedia3.bsh-group.com/Documents/8001366453_A.pdfRead 14 October 2026Section 7.7: in Auto mode the appliance optimizes the ratio between runtime and suction power.8Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BKS931BA.pdfRead 14 October 2026Auto: the nozzle adjusts power by floor type automatically, carpet or hard floor.

Yes1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Page says auto adjusts suction by dirt detection. In Auto Mode the vacuum identifies particle size and quantity and adapts suction.4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Manual says that in auto mode the suction power and the dirty level color change with the amount of particulate matter in real time.

Dirt detectioniA sensor measures the dust passing through or finds dirtier spots.

Yes8Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BKS931BA.pdfRead 14 October 2026The MicroClean sensor detects the smallest particles and the MicroClean ring shows if the surface is clean.

Yes1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Page lists Enhanced Blue Light Dust Detection and smart dirt detection that identifies particle size and quantity.4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Display shows a dirty level indicator and a particulate matter amount indicator, with sizes above 10, 50, 200 and 500 um.

Noise level (claimed)iThe maker's published noise level, usually the sound power level at the highest setting. A reviewer's sound meter reading is a different measure. Only a figure the maker states, never a retailer feed. When the maker prints dB without the A, store it and say so in the source note.

80dB(A)2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page lists Silence Level 80 dBA. The German pages list the sound power level as 80 dB(A) re 1 pW. The mode is not stated.8Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BKS931BA.pdfRead 14 October 2026Sound power level 80 dB(A) re 1 pW. Mode not stated.

Not available

Floor head and tools

3 of 4 differ

Floor heads includediThe maker's names of the motorized floor heads in the box, such as "Fluffy Optic". Small tools are listed in the box contents.

MicroClean Brush8Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BKS931BA.pdfRead 14 October 2026MicroClean nozzle with LED lighting, an electric universal nozzle for all floor types.

Illumination Omni-Brush1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Package list names one floor head, the Illumination Omni-Brush. The Motorized Mini-Brush is a small hand tool.

Floor head lightiA light on the floor head that shows dust. Laser is the narrow line of light the maker calls a laser. LED covers other headlights.

LED2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Spec sheet says MicroClean Brush with LED Lights.4Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdfRead 14 October 2026MicroClean Brush with LED Lights: Yes.

LED1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Page says the Omni-Brush has CelesTect light with 140 degree and 30 cm coverage. The manual calls the omni-brush lights LED lights and the page names no laser.4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Troubleshooting table says the LED lights of the illumination omni-brush do not work when they are damaged, which names them LED lights.

Bending wandiThe wand bends at a hinge to reach under furniture. A telescopic wand that only changes length does not count.

No4Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdfRead 14 October 2026Tube type: Standard. Tom's Guide says Bosch gives only the Unlimited 10 a bendable tube.14Press articletomsguide.com/home/home-appliances/bosch-just-released-two-new-cordless-vacuums-and-they-have-one-smart-feature-you-wont-get-with-shark-or-dysonRead 14 October 2026Report says the Unlimited 10 has a bendable tube, as a difference from the Unlimited 9.

Not available

Stands on its owniThe vacuum stands upright without a dock or wall mount.

Yes4Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdfRead 14 October 2026Ergonomic handling lists Nozzle Foot Release and Nozzle Quick Stand.6Owner's manualmedia3.bsh-group.com/Documents/8001366453_A.pdfRead 14 October 2026Section 7.12 describes the free-standing function that lets the floor nozzle stand freely in the room.8Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BKS931BA.pdfRead 14 October 2026Comfort features include the free-standing function and the foot release of the nozzle.

Not available

Bin and filtration

6 of 6 differ

Dustbin capacityiCapacity of the bin on the vacuum. Makers state the gross volume or the volume up to the max line. When both are given, the max-line volume is stored and the gross volume goes in the source note. A compaction claim, such as "holds three times more", is not stored. A dock bag that the maker calls the dust bin goes in the dock dust capacity.

0.4L2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page lists contents, dust container 0.4 l.

0.6L1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Spec table lists dust cup capacity 0.16 gallons, which is about 0.61 L. Dreame Latvia lists 600 ml, which is stored.2Maker product pagelv.dreametech.com/en/products/dreame-z20-stationRead 15 October 2026Spec table lists dust container capacity 600 ml.

FilteriPublished filter type or grade, such as "HEPA".

HEPA4Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdfRead 14 October 2026HEPA Filtration: Yes. Footnote says the HEPA filters keep more than 99.99 percent of dust from being released, tested to ASTM F3150 and IEC 62885-4:2020/A1:2023. The sheet names no particle size, so no capture claim is stored. The brush pick-up claim of over 99.9 percent is a different claim.

HEPA H141Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Footnote says HEPA H14 per a Suzhou GTT Service test, report 0340-24A-01.2Maker product pagelv.dreametech.com/en/products/dreame-z20-stationRead 15 October 2026Spec table lists filter type HEPA H14.

Sealed filtrationiThe maker states that the whole machine is sealed, so all air passes the filter before it leaves.

Not available

Yes1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Page lists 99.99 percent whole-machine filtration efficiency and a whole-machine filtration test by SGS.

Particle capture (claimed)iShare of particles the maker says the vacuum captures, such as 99.99, at the particle size in the next row. Keep the test standard in the source note, such as ASTM F1977 or ASTM F3150. Compare only values with the same particle size. A claim with no particle size is left out.

Not available

99.99%1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Spec table lists filtration efficiency 99.99% (>=0.3 um). Footnote says tested by SGS, report SHFT240300008471, whole-machine.

Smallest captured particle (claimed)iParticle size that goes with the capture claim, such as 0.1.

Not available

0.3µm1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Same spec row says 0.3 um and above.

Washable filteriThe maker says the filter can be rinsed with water.

No6Owner's manualmedia3.bsh-group.com/Documents/8001366453_A.pdfRead 14 October 2026Section 8.8 says to tap out the cartridge filter and never let the filters come into contact with liquids. RotationClean in section 8.5 cleans it. The German spec sheet says there is no more filter washing.8Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BKS931BA.pdfRead 14 October 2026Lifetime filter material with RotationClean, no more washing of filters.

Yes4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Manual section on cleaning the filter says to rinse it with clean water, use no detergent and let it dry.

Battery and run time

6 of 8 differ

Battery voltageiNominal pack voltage, such as 25.2 V. A full-charge voltage, such as 29.4 V for seven cells, is not nominal.

18V2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page lists Voltage 18.0 V.

29.6V4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Specification table lists the battery pack V2405-8S1P-GYA with nominal voltage 29.6 V.

Battery capacityiPublished pack capacity at the nominal battery voltage. A cell count times a cell capacity, such as "8 x 3,200mAh", is not a pack capacity. The cell capacity is the pack capacity only when all cells are in series. That holds when the pack voltage divided by the cell count is one lithium-ion cell voltage, 3.6 or 3.7 V, such as 8 x 2,200mAh at 29.6 V. The source note shows the check. When the maker gives a rated and a nominal capacity, the one that matches its stated Wh at the pack voltage is stored.

3,000mAh2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page lists Battery capacity 3.00 Ah, which is 3000 mAh. The spec sheet says 1 battery (1x 3 Ah).

2,700mAh4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Specification table lists rated capacity 2700 mAh, nominal capacity 2850 mAh and energy 79.92 Wh. 2700 mAh x 29.6 V is 79.92 Wh, so the rated capacity is stored. Dreame's store pages list 8 x 2,850mAh, which is eight cells in series and not a pack total. The 2026 revision A05 adds the second battery supplier V2405-8S1P-BWA with the same figures.

Removable batteryiThe user can remove and swap the battery without tools, such as a click-in battery. Service replacement does not qualify.

Yes2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page lists an exchangeable battery pack.6Owner's manualmedia3.bsh-group.com/Documents/8001366453_A.pdfRead 14 October 2026Section 4.6 and the battery list name genuine PBA 18V 3.0Ah and 4.0Ah packs that insert and remove.

Yes4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Manual has a Replacing the Battery Pack section for a removable rechargeable lithium-ion pack and a battery pack release button.

Batteries includediNumber of batteries in the box.

12Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page lists Number of batteries 1. BXS93SBUC lists 2.

11Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Package list has one vacuum main body with battery. The spare battery pack is sold separately as the Z20/Z20 Station Battery Pack.

Run time (claimed)iOne row per maker run time claim on one battery. Power level puts the maker's mode on a common scale. Lowest is the weakest setting, such as Eco or Min. Highest is the strongest, such as Boost, Max or Jet. Middle covers every setting between them. Claims that add a second battery are not stored. A handheld configuration without a motorized head counts as non-motorized tool. On hard floor with the main head counts as motorized floor head. Leave the tool out when the maker says neither or its own pages disagree, and name them in the source note. A machine with one power setting uses highest. When the maker gives a range, such as 20 to 25 min, the top of the range is stored and the range goes in the source note. A boost button or trigger counts as a setting, so a machine with one setting and a boost has a lowest and a highest row. A wet cleaning mode, such as Dyson Wet or Samsung WET, is not a power level, so it is not stored.

ABosch Unlimited 9

Power level	Mode	Tool	Run time (min)
Lowest	Eco	Non-motorized tool	60
Lowest	Eco	Motorized floor head	50
Auto	Auto	Motorized floor head	17
Highest	Turbo	Motorized floor head	10

Source8Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BKS931BA.pdfRead 14 October 2026Runtime per 3.0 Ah battery: up to 60 min in Eco with non-electric accessories, 50 min in Eco with the electric floor nozzle, 17 min in Auto with the electric floor nozzle and 10 min in Turbo with the electric floor nozzle. Auto is stored with the auto power level because the nozzle adjusts power to the floor type by itself. Footnote on the US sheet says the maximum is measured in Eco without the electrical nozzle to EN IEC 62885-4:2020/A1:2023.

BDreame Z20 Station

Power level	Mode	Tool	Run time (min)
Lowest	Eco	Non-motorized tool	90

Source1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Spec table lists maximum runtime 90min. Footnote says 90 minutes is in Eco mode with the combination tool, from in-house lab data. The page claims no other mode time. The combination tool is not motorized.

Max run time (claimed)iLongest maker run time claim on one battery. It is usually on the lowest setting with a non-motorized tool.

60min=CalculatedFrom Run time (claimed)

90min=CalculatedFrom Run time (claimed)

Run time at highest power (claimed)iLongest maker claim on the highest setting, such as Boost. The tool is in the run time table.

10min=CalculatedFrom Run time (claimed)

Not available

Full charge time (claimed)iThe maker's claim for charging an empty battery to full. A partial charge is not stored. Makers state different times per market for the same model, so it is per variant. Between the manual and a product page, the manual wins. When the maker gives a range, store the top of the range and keep the range in the source note.

180min2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page lists Charging time 00:51 h for this model with the quick charger. BCS931WUC lists 03:00 h with its wall charger.4Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdfRead 14 October 2026Approx. 3 hours, and approx. 50 minutes with the fast charger.5Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042963_BCS931WUC_Spec_Sheet.pdfRead 14 October 2026BCS931WUC: no fast charger, charging time approx. 3 hours, which is 180 minutes.6Owner's manualmedia3.bsh-group.com/Documents/8001366453_A.pdfRead 14 October 2026Section 7.1: wall charger 1A, 3.0 Ah battery 3 h. The quick charger manual lists 51 min for a 3.0 Ah pack.7Owner's manualmedia3.bsh-group.com/Documents/8001351008_A.pdfRead 14 October 2026Quick charger AL 18V-44 manual: approximate charging time 51 min for an 18 V 3.0 Ah battery, 65 min for 4.0 Ah. Used for the BBS932GUC and BXS93SBUC rows.

240min1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Spec table lists charging time 4hrs. The EU manual says approximately 3.5 hours, which is the EU row.4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Specification table lists charging time approximately 3.5 hours, which is 210 minutes.

Dock

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Auto-empty dockiA dock that empties the vacuum's bin into a bag or bin of its own. A charging dock or wall mount alone does not qualify.

No4Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdfRead 14 October 2026Docking Station (Wall Mount) with Accessories Rail. It holds and charges the vacuum and does not empty the dust box. The dust box is emptied by hand with the compression slider.

Yes1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Page says the dust removal hub automatically collects dust after cleaning.4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Components list a dust removal hub with a dust collection bag. Starting Dust Collection says the hub starts collecting automatically when the vacuum is docked.

Dock dust containeriWhat the dock empties the vacuum's dust into.

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Bag1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Page says the hub holds a replaceable 3L dust bag. A spare bag is in the box.4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Hub components list a dust collection bag and the manual says to replace it every three months.

Dock dust capacityiCapacity of the dust bag or bin in the dock.

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3L1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Spec table lists dust bag capacity 0.79 gallons and text says 3L, based on in-house lab data.

Days between dock emptying (claimed)iThe maker's estimate of how long the dock holds dust before it must be emptied. Makers assume different homes and schedules.

Not available

100days1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Text says the 3L bag holds up to 100 days. Footnote says based on cleaning tests three times a week in Dreame's lab.

Display and app

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DisplayiScreen means an LCD or similar screen that shows text or numbers, such as the run time left. LED indicators are status lights only. The maker's word does not decide. A panel that shows numbers or text is a screen, even when the maker calls it an LED display. A panel of fixed icons or bars is LED indicators, even when the maker calls it a smart display.

Screen2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page highlights an LED display. The manual says it shows the cleaning mode and the remaining runtime in minutes.4Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdfRead 14 October 2026Display: LED.6Owner's manualmedia3.bsh-group.com/Documents/8001366453_A.pdfRead 14 October 2026Section 7.4 and 7.5: the display shows the battery level in percent and the remaining runtime in minutes.8Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BKS931BA.pdfRead 14 October 2026LED display shows cleaning modes and the remaining run time.

Screen1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Page says the LCD screen shows real-time cleaning data.4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Display screen shows suction level, battery percentage (LO below 10 percent), dirty level and particulate matter amount and types.

Wi-FiiThe maker names Wi-Fi for the vacuum or its dock. An app that pairs over Bluetooth is not Wi-Fi. Left out when the maker names no connection.

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Companion appiThe maker's phone app for the vacuum, by name. Only an app that connects to this vacuum. A registration or tutorial app does not count.

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Measured

None of 7 known

Airflow at the wand (measured)iAirflow at the end of the wand with the floor head removed, on the highest setting, measured by a reviewer with an anemometer.

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Sealed suction (measured)iMaximum suction with the intake fully sealed, in inches of water lift, measured by a reviewer with a manometer on the highest setting.

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Suction at the floor head (measured)iSuction measured through a small hole in a test board under the running floor head, on the highest setting.

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Embedded sand pickup on carpet (measured)iShare of 100 g of sand worked into medium-pile carpet that the vacuum removed with a fixed number of passes on the highest setting. The reviewer weighs the bin before and after.

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Run time at highest power (measured)iContinuous run time on the highest setting with the standard floor head, until the battery is empty.

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Noise at highest power (measured)iSound level on the highest setting, measured by a reviewer with a sound level meter at a fixed distance. It is not comparable to the maker's sound power figure. Distance and weighting go in the source note when the reviewer states them.

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Handle weight (measured)iWeight of the handle assembly with battery, without wand or floor head, on a reviewer's scale.

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Dimensions and weight

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DimensionsiThe assembled stick standing upright. Height is the full length from floor head to handle. Width is across the floor head. Depth is front to back. For a handheld vacuum, height is its longest side.

Width250Height1,300Depth216mm(9.8 × 51.2 × 8.5 in)2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page lists Dimensions 1300x250x216 mm. The spec sheet lists overall dimensions 51.18 x 9.84 x 8.5 in as height, width, depth, which is the same. The German sheet lists height 1300, width 250, depth 216 mm.8Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BKS931BA.pdfRead 14 October 2026Height 1300 mm, width 250 mm, depth 216 mm.

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WeightiReady-to-use stick with battery, wand and main floor head, without a dock. For a handheld vacuum, the vacuum with battery.

3.26kg(7.2 lb)2Maker product pagebosch-home.com/us/en/product/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9/BBS932GUCRead 14 October 2026Page lists Measured weight, ready for op. 3.3 kg. The German spec sheet says 3.26 kg ready for use with pipe and floor nozzle. The spec sheet net weight of 4.2 lb is not the stick weight and is not stored.8Maker spec sheet (PDF)media3.bsh-group.com/Documents/specsheet/de-DE/BKS931BA.pdfRead 14 October 2026Text says weight ready for use with pipe and floor nozzle 3.26 kg. The sheet's net weight of 4.5 kg is the packed product with accessories and is not stored.

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Handheld weightiHandheld unit with battery, without wand or floor head.

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2.2kg(4.9 lb)1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Spec table lists vacuum body weight 4.85lbs, which is 2.2 kg. The hub weighs 5 kg. The page does not say whether the wand and floor head are included.

Dimensions in the dockiThe vacuum standing in its auto-empty dock, as makers publish it. When a maker lists one size and weight for a docked model and the weight is about twice the stick weight, both describe the stick in its dock. Treat the size and the weight the same way, never one without the other.

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Weight with dockiThe vacuum and its auto-empty dock together. When a maker lists one size and weight for a docked model and the weight is about twice the stick weight, both describe the stick in its dock. Treat the size and the weight the same way, never one without the other.

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Certifications

None of 1 known

Other certificationsiNamed certifications, verbatim, such as an allergy certification.

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In the box

1 of 1 differ

In the boxiItems supplied with this exact model, verbatim. When the boxes of the variants differ, leave the base out and list each box in its variant row.

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Dust Removal Hub (with Dust Collection Bag), Vacuum Main Body (with Battery), Illumination Omni-Brush, Motorized Mini-Brush, Combination Tool, Rotating Soft Dusting Brush, Extension Rod, Flexible Adapter, Extension Hose, Spare Dust Collection Bag, Accessory Mount1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Package list as printed. The EU manual lists the same items and says one of two dust bags is pre-installed.

Links

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Product page

www.bosch-home.com/us/en/category/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited91Maker product pagebosch-home.com/us/en/category/vacuum-cleaners/cordless-vacuum-cleaners/unlimited/unlimited9Read 14 October 2026

www.dreametech.com/products/z20-station-cordless-stick-vacuum1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026

Spec sheet

media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdf4Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdfRead 14 October 2026US spec sheet for BBS932GUC, dated 9/26. A spec sheet for BCS931WUC is on the white model page.

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Manual

media3.bsh-group.com/Documents/8001366453_A.pdf6Owner's manualmedia3.bsh-group.com/Documents/8001366453_A.pdfRead 14 October 2026US Use and Care Manual for the Unlimited 9, type VRASMUHNG, English pages 2 to 44.

cdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdf4Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/V2419.pdfRead 15 October 2026Dreame global EU user manual V2419 revision A03, document code VZV25A-EU-A03 06/2024, built April 2025. English pages 1 to 13. It is linked from Dreame's Z20 Station user manual page.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

2years4Maker spec sheet (PDF)media3.bsh-group.com/Documents/28042962_BBS932GUC_Spec_Sheet.pdfRead 14 October 2026Product warranty 2 years and motor warranty 10 years, activated on registration.

2years1Maker product pagedreametech.com/products/z20-station-cordless-stick-vacuumRead 15 October 2026Page lists a 2-Year Warranty under the add to cart button.

Both are also in the API. Back to all cordless vacuums.