robotindex Roborock Saros 20 Flow
Roborock's just-launched Saros flagship, named for its SpiraFlow 2.0 pressurized roller-mop wash system. Pairs a retracting LiDAR turret with an AdaptiLift chassis that climbs double-layer thresholds up to 3.46" despite an ultra-slim body. Launched in the US on September 14, 2026.
Manufacturer page — us.roborock.com →
Image: Roborock (official)
Specs
Battery
6,400 mAh~200 m² per charge; 150-min fast charge
Weight
5.2 kgrobot body only; RockDock weighs 10.1 kg separately — official Roborock spec
Dimensions
35.2 × 35.3 × 8.98 cmdiameter × diameter × height, official Roborock spec
Navigation
RetractSense LiDAR+ structured light/RGB reactive AI
Suction
36,000 PaHyperForce digital motor
Price
$1,499.99launch price; $1,699.99 after ~Sept 20, 2026
Mopping
SpiraFlow 2.016 pressurized water outlets, 240 RPM
Mop Wash Temp
212°F100°C wash; 145°F hot-air dry
Threshold Climb
Up to 3.46"AdaptiLift Traverse 3.0, double-layer
Dock
RockDockauto-empty, water/detergent refill, drain
Subscription
NoneSame free-feature model as other current Roborock robots — no subscription found on Roborock's app or this Sept 2026 product page
Reference Price
Launch price $1,499.99 through roughly September 20, 2026, reverting to a $1,699.99 MSRP afterward. Launched in the US on September 14, 2026, following an IFA 2026 announcement; a Canada launch is planned for October 2026.
Sensors & Hardware
SpiraFlow 2.0 self-cleaning roller-mop uses 16 water outlets at up to 15N pressure and 240 RPM, extending 44mm into corners and auto-lifting 15mm on carpet. Navigation pairs retractable RetractSense LiDAR with structured-light and RGB-camera AI recognizing 300+ obstacles. The AdaptiLift Traverse 3.0 chassis lets an 8.98cm-tall body climb thresholds up to 8.8cm. RockDock handles auto-empty, water refill, mop washing, drying.
Insights
The Saros 20 Flow's SpiraFlow 2.0 system runs 16 pressurized water outlets continuously across a self-cleaning roller mop at up to 240 RPM, a notably more elaborate wet-cleaning setup than the spinning mop pads on most competing robot vacuums. Its chassis also lets the robot climb double-layer thresholds up to 3.46 inches despite an ultra-slim profile.
Firmware & Community
Closed platform
Roborock Saros 20 Flow has not released a public SDK, firmware repo, or developer API. Not currently listed in Builds & Mods.
Specs sourced from Roborock's own US product pages (us.roborock.com/products/roborock-saros-20-flow), Android Authority's launch coverage, VacuumWars' launch article, and GSMDome, as of September 2026. This model launched just days before this page was written — noise level (dB), exact runtime in minutes, and exact dustbin/water-tank capacities are not published by Roborock and were not found in press coverage checked. robotindex does not sell this product.