Eufy Omni S2 Pro vs Roborock Saros Z70
3 questions both answer, side by side. Every answer is backed by the dated sources at the bottom.
Side by side: where the details differ
Can a robot vacuum get over high door thresholds?
Eufy says the Omni S2 Pro crosses two-tier thresholds up to 2.76 inches (about 70 mm) and single-tier thresholds up to 1.38 inches (about 35 mm).
Good to know: Maker's spec, not tested. $1,699.99; Eufy's page said on Nov 3, 2026 that new orders ship around Nov 5.
Roborock lists the Saros Z70 for double-layer thresholds up to 4 cm (about 1.57 inches), with a chassis that lifts up to 10 mm.
Good to know: Maker's spec; Roborock notes results vary with the home. Not tested in our sources.
Can a robot vacuum keep its wet mop off the carpet?
Eufy says the Omni S2 Pro lifts its roller mop 0.59 inches (about 15 mm) when it detects carpet, then vacuums without mopping.
Good to know: Maker's spec. Less lift than the 28 mm listed for the Omni S2, and the roller stays on the robot.
Roborock says the Saros Z70 detaches its mops before vacuum-only runs and carpet cleaning, so carpets stay dry.
Good to know: Maker's description; no lift height listed.
Does a robot vacuum work with Alexa, Google or Siri?
Eufy says the Omni S2 Pro takes voice commands and supports Siri, Alexa and Google Home.
Good to know: Maker's US page; it doesn't say which commands work and doesn't mention Matter.
Roborock lists voice commands for the Saros Z70 through Amazon Alexa, Apple Siri or Google Home.
Good to know: Matter, and with it Apple's Home app, is only promised for the Z70 in an upcoming update; the page gives no date.
Only checked for one of them
Can a robot vacuum pick up pet hair without tangling?
Roborock says the Saros Z70 has an anti-tangle system on its main and side brushes that manages long hair.
Good to know: Maker's claim (it cites a 0% tangle rate in its own testing); not in Vacuum Wars' pet hair data.
Can a robot vacuum pick up socks and clutter off the floor?
The Saros Z70's arm picks up socks, paper clumps and slides up to 300 g and drops them in a set spot.
Good to know: Worked about half the time in one hands-on review; other reviewers called the automatic arm unreliable or buggy. The CES demo only worked with the sock in one spot.
Can a robot vacuum work without Wi-Fi?
Roborock says its robot vacuums can clean the whole home, spot-clean and return to the dock at the push of a button without Wi-Fi, and handle basic voice commands offline.
Good to know: Roborock's general FAQ, not specific to the Saros Z70. Scheduling and suction-power choice need Wi-Fi.
Does a robot vacuum wash its mop with hot water?
Eufy says the Omni S2 Pro's dock washes the roller mop with water up to 212°F (100°C), up from 140°F (60°C) on the Omni S2, and the robot can also mop with 131°F (55°C) hot water.
Good to know: Maker's figures; Eufy's page gives no drying temperature. Ships from around Nov 5, 2026.
How we know (7 sources)
US product page for the eufy Robot Vacuum Omni S2 Pro, read Nov 3, 2026: $1,699.99 with Add to Cart, and a note that new orders are expected to ship around November 5. Its comparison with the Omni S2 lists: peak suction up from 30,000 to 40,000 Pa; dock mop washing with water up to 100°C instead of 60°C; added 55°C hot-water mopping and UV-C floor disinfection; obstacle recognition for 360+ object types instead of 200+, processed on the robot; two-tier thresholds up to 2.76 in instead of 1.65 in, single-tier up to 1.38 in; it climbs onto carpets up to 1.38 in thick, less than the Omni S2's 1.97 in. The roller mop lifts 0.59 in when carpet is detected. No battery runtime is given. Re-read Nov 5, 2026: a 'Smart Cleaning at Your Command' section says you control cleaning by voice and that it supports Siri, Alexa and Google Home. The page names no Matter support.
Read the sourceCES 2025 demo of the Roborock Saros Z70: its arm picked up a balled-up sock and dropped it in a basket, but only with the sock in one specific spot. Roborock quoted a 300 g limit for socks, paper, small towels and sandals.
Read the sourceReview of the Saros Z70: the arm is well designed and works well when steered remotely in the app, but its automatic mode is buggy and limited. Vacuuming, mopping and navigation are outstanding; the price is described as investment-level.
Read the sourceHands-on review of the Saros Z70: excellent vacuuming and mopping, but the OmniGrip arm is unreliable. A small sock and a tissue were ignored and run over; a shoe was picked up, but the claw caught inside it at the drop-off and the robot drove around with it. The arm is off by default.
Read the sourceUS Saros Z70 page (read Oct 23, 2026): foldable five-axis arm that moves obstacles and lifts items up to 300 g (object recognition via updates; objects must be defined in the app). 22,000 Pa suction, dual anti-tangle system on main and side brush (Roborock cites a 0% hair-tangling rate in its own testing), mops that detach automatically before vacuum-only and carpet cleaning, and 108 recognizable obstacle types. Re-read Nov 3, 2026: lists crossing of double-layer thresholds up to 4 cm (2-4 cm thresholds in its checklist; results may vary with the environment), a chassis that lifts up to 10 mm and mops that lift up to 22 mm when the chassis rises. Mid-to-high-pile carpet settings must be switched on in the app. Re-read Nov 5, 2026: voice commands via Amazon Alexa, Apple Siri or Google Home; Matter support is marked as coming to the Saros Z70 in an upcoming over-the-air update, so it isn't there yet.
Read the sourceRoborock support FAQ "Can the robot vacuum work without Wi-Fi?" (read Oct 24, 2026): its robot vacuums can do full-home and spot cleaning and return to the dock at the push of a button without Wi-Fi, and handle basic voice commands. Wi-Fi unlocks advanced features such as scheduled cleaning and suction-power selection.
Read the sourceSeveral-week hands-on review of a purchased Saros Z70 (page last updated Sep 18, 2026). The arm worked about half the time on socks, paper clumps and slides, sometimes misplaced items, and ignored objects outside its trained list.
Read the source