Eufy Omni S2 Pro vs Roborock Saros 20
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.
The Saros 20 lifts its body to climb a single threshold of 57 mm in Vacuum Wars' test, and two-step sills up to 8.8 cm per Roborock.
Good to know: The 8.8 cm figure only applies to two steps (4.5 + 4.3 cm). Around €1,499 in Europe.
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.
The Saros 20 lifts its two mop pads 20 mm on carpet and can drop them at the dock before vacuuming.
Good to know: Listed spec, not measured.
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.
Roborock says the Saros 20's dock washes the mop pads with water heated up to 212°F (100°C), then dries them with 131°F warm air.
Good to know: Roborock's own testing at standard air pressure; it notes the temperature varies with conditions such as altitude.
Only checked for one of them
Can a robot vacuum deep-clean carpet?
The Saros 20 scored 89 in the carpet deep-clean test.
Good to know: Lab test on one unit.
Can a robot vacuum pick up pet hair without tangling?
The Saros 20 scored 88 on the pet hair pickup test with zero tangles.
Good to know: Lab test on one unit.
How we know (5 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.
Read the sourceReview of the Roborock Saros 20 (MSRP €1,499): its AdaptiLift Chassis 3.0 climbs steps up to 8.8 cm, but only as two steps of 4.5 and 4.3 cm, more than double the Saros 10R's 4 cm. Reliable obstacle detection, under 8 cm tall, average battery life.
Read the sourceReview of the Saros 20 Sonic (last updated Aug 28, 2026): it cleared a 57 mm single threshold, above Roborock's 45 mm rating and tied with the standard Saros 20 for the best result Vacuum Wars has recorded. Strong vacuuming; mopping below expectations for the price.
Read the sourceTest and spec page for the Roborock Saros 20, read Oct 22, 2026. Lab results: carpet deep clean 89, flattened pet hair pickup 88, zero wraps in the 7-inch hair tangle test. Specs: two spinning mop pads that lift 20 mm on carpet and can be left at the dock; 88 mm threshold climbing.
Read the sourceUS Saros 20 page (read Oct 25, 2026): the RockDock washes the mop pads with water heated up to 212°F (100°C) and cleans itself with hot water, then dries the mops and dock with 131°F (55°C) warm air. Roborock says the 212°F figure comes from its own testing at standard atmospheric pressure, and actual temperatures vary with conditions such as altitude. The mops detach for vacuum-only or carpet-first runs.
Read the source