Product Library / Robot Vacuums & Mops

Protocols: not yet established — no source we have read names the radios this device uses.^{[4][5][23][33][44]}

Plans and ongoing costs^{[19][21][32][42]}

✓ Works without a subscription: Yes.

Vendor account required: Not established — we have not sourced this yet.

Neither Roborock US surface read for this record mentions a subscription, a membership, a plan or a recurring fee, and no feature is gated behind one. Recorded on absence rather than on a promise: Roborock has not published a commitment that any current feature stays free, and the app dependency above means the vendor holds the lever if that ever changes.

Maintenance and offline use^[1][3]

• Batteries: 6400 mAh lithium-ion, built in, charged on the dock
• Works without the internet: Inconclusive — we read the vendor's own material and it does not answer this either way. It does not mean the product fails without the internet.
• Roborock publishes a 6400 mAh lithium-ion battery for the robot and a combined robot-plus-dock weight of 38.14 lb. The robot measures 3.14 inches tall, which is the number that decides whether it clears your furniture, and Roborock's own footnote dates the claim behind it: 'As of January 2025, the Saro Z70 is the thinnest model among Roborock's vacuum robots.' Robot dimensions are published as 13.78 x 13.9 x 3.14 inches on the marketing page; the store's specification block prints 13.78 x 133.89 x 3.14, which is a typo on Roborock's own page. The dock is 15.0 x 18.7 x 19.21 inches. Consumables Roborock sells for it directly include dust bags and a floor cleaning solution. The US store states a 1-year warranty, free delivery and returns, and 24/7 support, and sells an extended warranty separately.
• Security updates: Roborock states its security-update commitment for this model as a period rather than a date: security updates 'for a minimum of 2 years', Roborock's stated policy for its robot vacuums as a class, with support starting 'not later than the date of sale on the Roborock official website' (the document this comes from names no country, so which markets it legally covers is not stated). That is a floor measured from a starting point the manufacturer sets — a launch or a purchase — rather than a fixed end date, so it cannot be placed on a calendar here. We record the commitment as the manufacturer states it, in our words, rather than converting it into a date it did not give. This is a published commitment, not a gap in our research.^[25][34][46]

The catch

Read Roborock's two pages for this robot side by side, because they do not tell the same story. The page with the Add To Cart button on it never says the words Matter, Alexa, Siri, Apple, SmartThings or Home Assistant. Its entire smart-home content is a single bullet in the key-features list: 'Smart Home with Voice and App Control'. A separate marketing page, one click away and easy to miss, is where Roborock claims Matter, names Alexa, Siri and Google Home, and advertises an Apple Watch app. Second, and this is the part that decides whether Matter matters to you: Roborock's own footnote reads 'The Matter protocol will be available on Saros Z70 through an upcoming OTA. Please stay informed for the latest updates.' There is no date. Roborock does hold Matter certificates for robotic vacuum cleaners, twelve of them, but every one is filed under the generic name 'Roborock Robotic Vacuum Cleaner' with an internal family code in the SKU field rather than a consumer model name, so none of them can be tied to this robot. Until the update ships, treat this as a Wi-Fi robot with a vendor cloud and three voice skills. Third, the app is mandatory and Roborock says so plainly: 'The product will not function as intended without downloading the app and agreeing to the app's Terms and Conditions.' The offline 'Hello Rocky' assistant is a genuine partial escape — it starts, pauses, picks a room and changes modes with no network — but mapping, scheduling and every ecosystem link run through the app. Fourth, Roborock never names the radio. Not on the store page, not on the marketing page, not in either specification block: no Wi-Fi, no band, no Bluetooth, nothing. That is unusual enough to state rather than fill in. Finally, on privacy, two facts belong together and the conclusion is yours. Roborock claims the Saros Z70 'complies by ETSI 303 645 certified by TUV' and that camera functions are 'switched off by default'. It is also a robot with cameras and a mechanical arm that photographs your floors, and a Korean government assessment of this product category in September 2025 found authentication weaknesses at three other brands — Roborock was not among the three, and it was not one of the two brands singled out for good practice either.

Who it's for

Someone who wants the most capable hardware in this category and is content to live inside the vendor's own app, with voice as a convenience rather than as the control surface. Roborock names Alexa, Google Home and Siri for voice commands but does not say which commands each one gets. It fits a Home Assistant household unusually well — that is the one platform where a documented integration gives local command-and-polling plus room-level cleaning, rather than a marketing bullet. It is a poor fit if you are buying it to put a robot vacuum into Apple Home, because that route needs Matter and Matter is a promised over-the-air update with no date attached. It is also the wrong pick if you want SmartThings, where neither company has published anything about this model, or if a mandatory vendor app and account is a dealbreaker — Roborock is explicit that the product will not work as intended without one.

Sources & method

Numbered sources below back the facts marked with the matching number above. This is a research profile: compiled from manufacturer documentation, certification registries, and published testing — we state facts, not verdicts, and we have not physically tested this unit. How we work →

Compatibility and lifecycle information reflects the last-verified date above and can change without notice (firmware updates, cloud-service changes, discontinuations). It is provided as-is, for information — verify with the manufacturer before purchasing. Spot an error? Tell us and we'll fix it. Full terms: Terms of Service.