Verifiable specifications
Product information supported by official records
| Manufacturer model code | OV81 | View source |
|---|---|---|
| Robot dimensions | 340 × 340 × 98 mm | View source |
| Robot net weight | 4.12 kg | View source |
| Nominal battery capacity | 5,200 mAh nominal | View source |
| Robot rated power | 70 W | View source |
| Robot rated voltage | 14.4 V DC | View source |
| Robot charging voltage | 20 V DC | View source |
| Charging dock model | OV81CDZ | View source |
| Charging dock dimensions | 130 × 121 × 95 mm | View source |
| Charging dock rated input | 100–240 V AC, 50/60 Hz | View source |
| Charging dock rated output | 20 V DC, 1.2 A | View source |
Multi-storey maps do not settle furniture clearance
Xiaomi documents LDS navigation with multi-storey maps. Separately, the body is 340 × 340 × 98 mm and its net weight is 4.12 kg. Use the dimensions to check the narrowest part of the intended route, including any low furniture rails.
The reviewed specifications do not supply a minimum furniture-entry clearance or a supported stair-climbing function. Do not read multi-storey mapping as a promise that the robot moves itself between floors.
Xiaomi Robot Vacuum S40 has the following documented robot dimensions: 340 × 340 × 98 mm. Use the stated dimensions for the exact robot or station configuration. Preserve distinctions such as a raised sensor, retracted sensor or installed base when they are documented. A body outline does not include a guarantee that the robot can enter every opening or that the station fits with maintenance access; compare the relevant physical clearance separately.
For Xiaomi Robot Vacuum S40, Official product summary: S40 combines LDS multi-storey mapping with a 5,200 mAh nominal battery. The Global page specifies up to 10,000 Pa suction only under its full-charge, Turbo-mode manufacturer test conditions; actual results vary. Official feature highlights: Up to 10,000 Pa suction with a full charge in Turbo mode in manufacturer testing; results vary with usage. 5,200 mAh nominal battery capacity and LDS navigation with multi-storey maps. Treat the documented feature description as the manufacturer’s account of this configuration, keeping every stated mode, component and qualification together. It is useful for identifying what to check next; it is not an independent review score or a guarantee that a different bundle provides the same functions. Choose the feature relevant to your actual task and check its conditions before comparing a headline with another model.
For Xiaomi Robot Vacuum S40, use the suction entry with the manufacturer’s measurement conditions and cleaning configuration. A pressure maximum is not an independent measurement of debris pickup in your rooms. For a practical comparison, keep the documented brush, carpet and mopping behavior in view as well; the headline alone cannot rank two products or guarantee an outcome on every surface.
For Xiaomi Robot Vacuum S40, read mapping and obstacle recognition as distinct functions within the documented navigation system. A map describes the cleaning layout; an avoidance feature describes how the device responds to obstacles under its stated conditions. A mapping claim alone does not establish obstacle recognition, and neither claim guarantees coverage or recognition of every object. Use the model’s actual control and boundary instructions when preparing a room.
Xiaomi Robot Vacuum S40 has the following documented robot net weight: 4.12 kg. Keep this weight tied to the configuration and measurement scope given by the manufacturer. A figure excluding packaging or accessories should not be read as the weight of a delivered bundle. When planning placement or transport, identify which components are actually included rather than borrowing a value from a similarly named version.
Keep battery, electrical power and suction separate
The battery is listed at 5,200 mAh nominal capacity, while 70 W is the robot’s rated electrical power. Neither tells you a guaranteed cleaning duration for your floor plan.
The up-to-10,000 Pa suction statement comes from manufacturer testing with a full charge in Turbo mode. Actual results vary with usage. It is not an independent pickup test or a measured advantage over another robot.
Xiaomi Robot Vacuum S40 has the following documented nominal battery capacity: 5,200 mAh nominal. The same configuration lists charging dock rated input as 100–240 V AC, 50/60 Hz. Distinguish battery capacity from the runtime, charging or resume behavior specified for this model. A nominal capacity is not a guarantee of the same coverage in every cleaning mode. Keep the stated test and operating conditions when comparing products, and use the exact robot and dock instructions before arranging a charging routine or replacement.
For Xiaomi Robot Vacuum S40, Charging dock rated input: 100–240 V AC, 50/60 Hz. Robot rated power: 70 W. Robot rated voltage: 14.4 V DC. Robot charging voltage: 20 V DC. Charging dock rated output: 20 V DC, 1.2 A. Match each electrical rating to the robot, dock or station component named in the source. Their input and output ratings are not interchangeable, and a cleaning or heating power figure is not the same as robot battery capacity. Keep the documented regional supply and exact accessory requirements when arranging charging; do not substitute an unlisted adapter or modify the electrical assembly.
Check the complete charging chain
The Global specification names OV81CDZ as the charging dock, with a 130 × 121 × 95 mm body. Its rated input is 100–240 V AC, 50/60 Hz, and its output is 20 V DC, 1.2 A. The robot’s rated voltage is separately listed as 14.4 V DC; its charging voltage is 20 V DC.
Match OV81 on the robot and OV81CDZ on the dock. This is an exact-model specification, not a compatibility approval for another charging base. If the supplied labels disagree with the purchase listing, pause setup and have Xiaomi or the seller resolve the mismatch.
Xiaomi Robot Vacuum S40 has the following documented manufacturer model code: OV81. Use each identifier under the label the manufacturer gives it. A sales SKU, technical model code and storefront record key do not necessarily identify the same level of configuration. Match the documented record to the unit or package you are checking, then verify accessories and regional support separately; a similar name or matching brand alone is not proof of interchangeability.
Xiaomi Robot Vacuum S40 has the following documented charging dock dimensions: 130 × 121 × 95 mm. Identify what the dock automates and what the cited temperature, capacity or interval actually measures. Washing water, drying air, an internal heater and temperature at the mop or floor are different locations. Likewise, a dust-collection estimate is not a maintenance-free period for the whole system. Keep the measurement point and use conditions attached to the feature when comparing station packages.
Exact product identity
Product identifiers in official records
GTINs, UPCs, manufacturer SKUs and model codes can identify different colors, configurations or bundles. Only identifiers stated in official records are shown; an unpublished ASIN is not inferred.
| Identifier | Exact value | Variant or bundle | Market | Source and review |
|---|---|---|---|---|
| Manufacturer model code | OV81 | Model level | Global | Xiaomi · mi.comManufacturer Global specifications, main-unit Product model/Model number; span[data-key="spec_5"] · |
FAQ
Xiaomi Robot Vacuum S40 frequently asked questions
Each answer stays within the facts and sources shown on this page.
01Does S40’s 5,200 mAh battery guarantee a full-home clean?
No duration or floor-area guarantee follows from that number. It is the nominal battery capacity; the reviewed facts do not establish runtime for a particular floor plan or cleaning mode.
02Can S40’s multi-storey mapping move the robot between floors?
No such function is established here. Xiaomi describes LDS multi-storey maps, which is a mapping claim; the reviewed record does not confirm stair climbing or automatic transfer between floors.
03Does the OV81CDZ input range prove S40 is supported in my country?
No. Its listed 100–240 V AC, 50/60 Hz input is an electrical specification. Local sales, app-region support and warranty are separate questions; confirm them for the exact unit before buying across borders.