Eufy Omni S2 vs Roborock Saros Z70

Obstacle-avoidance ranking (last updated Oct 21, 2026) from a standardized 24-object course that includes simulated pet waste, plus a cluttered torture test. The Eufy Omni S2 avoided all 24 objects; the Mova V70 Ultra Complete avoided 23. Notes that top-mounted LiDAR can miss low objects, so front cameras and sensors do the avoiding.

Test and spec page for the Eufy Omni S2, read Oct 22, 2026. Lab results: carpet deep clean 87, flattened pet hair pickup 88.5, zero wraps in the 7-inch hair tangle test. Specs: one roller mop that lifts 28 mm on carpet and stays on the robot; 42 mm threshold climbing.

CES 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.

Review 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.

Hands-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.

US 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.

Roborock 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.

Several-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.