DJI ROMO vs Roborock Saros 20

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ROMO compared with Saros 20

	DJIROMO	RoborockSaros 20
Overview
Released
Released	–	–
Task and control
Form
Form	Robot vacuum	Robot vacuum
Use
Use	Floor cleaning	Floor cleaning
Phone app
Phone app	Yes	Yes
Intended use
Intended use	Household floor vacuuming and mopping. S/A/P share the specified cleaning platform but differ in enclosure, supplied roller brushes and dock functions; they are configurations of this family record, not claims that their accessory packages are identical.	Indoor floor vacuuming and mopping. Threshold-crossing claims do not establish staircase climbing.
Autonomy
Autonomy	Maps rooms, plans cleaning routes, adapts cleaning to floor and debris, and returns to the dock for charging and cleaning cycles. Mop or roller-brush lifting separates the active cleaning tools in relevant modes.	SmartPlan 3.0 schedules and adapts cleaning with multi-floor maps and zone settings. Obstacle recognition is a manufacturer capability claim, rather than a guarantee that every cable or small object will be avoided.
Remote control
Remote control	DJI Home app provides cleaning settings, maps, no-go zones and remote camera functions.	Roborock app, onboard buttons and built-in voice assistant; RGB camera supports remote viewing and video calls.
Regional availability
Regional availability	The current maker UK store data lists water-tank P, A and S SKUs as on sale with Buy Now enabled and presale false. Its stock value is a sentinel, not a literal physical inventory count; no immediate delivery date is published in that data. Local checkout conditions apply. Checked October 2026.	The official UK store lists the Saros 20 SKU RRUK-Saros205-M1 as available for ordering on 3 October 2026. Saros 20 Set is the same robot with extra dust bags and mop pads, rather than a different generation.
Release details
Release details	First retail sale date remains unpublished in the exact maker sources read. Specification-page publication timestamps are not treated as on-sale dates.	TechRadar records European sales from February 2026 and later UK, US and Australian availability in March. A maker notice establishing the first retail date was not found, so the headline date is left unpublished.
Hardware
Height
Height	98 mm	79.8 mm
Width
Width	351 mm	350 mm
Depth
Depth	351 mm	353 mm
Robot weight
Robot weight	4.4 kg	–
Camera
Camera	Yes	Yes
Microphone
Microphone	–	Yes
Wi-Fi
Wi-Fi	Yes	Yes
Bluetooth
Bluetooth	Yes	Yes
Sensors
Sensors	–	StarSight Autonomous System 2.0 uses front and rear navigation sensing, 3D time-of-flight and an RGB camera; wall, cliff and carpet sensors are identified in the manual.
Camera
Camera	Dual fisheye cameras support obstacle sensing and app live video, with access controls. Camera-equipped cleaning robots require app/account configuration for remote features.	RGB camera for obstacle recognition and remote viewing. The manufacturer warns that obstacle and stain recognition depend on conditions and app settings.
Audio
Audio	–	Microphones and a built-in voice assistant; the manual identifies microphone locations.
Connections
Connections	Robot Wi-Fi 802.11b/g/n and 802.11a/n/ac; robot Bluetooth 5.0 and dock Bluetooth 5.1. Regional radio-frequency restrictions apply.	Manual lists 2.4 GHz and 5 GHz Wi-Fi, with regional indoor-use restrictions on some 5 GHz bands, and Bluetooth LE 5.4.
Size and weight
Size and weight	Robot width × depth × height 351 × 351 × 98 mm, 4.4 kg. Water-tank dock 425 × 453 × 440 mm, 10 kg. S robot model CR8F has a white enclosure; A/P robot CR8E is transparent. S/A dock CS8F is white, P dock CS8E transparent.	Robot 350 × 353 × 79.8 mm. The UK store publishes 15.89 kg for robot plus dock, not robot-only weight; that combined figure is not used as the robot's weight. Claimed access under 79.5 mm furniture involves slight front-structure compression and can cause scraping.
Accessories
Accessories	–	Robot, multifunction dock, dock base, power cable and rotating mop modules. Set bundle adds two dust bags and two mop pads. Gallery scenes are manufacturer illustrations of domestic use.
Battery
Battery life (maker's claim)
Battery life (maker's claim)	Up to 3 hours, vacuum-only Quiet mode at 25°C from 100% to 12% battery	–
Battery capacity
Battery capacity	5,000 mAh	6,400 mAh
Automatic dock return
Automatic dock return	Yes	Yes
Battery
Battery	5,000 mAh, 72 Wh battery; nominal robot voltage 14.4 V.	14.4 V, 6,400 mAh typical lithium-ion battery, as specified in the CE manual. A maker runtime under defined cleaning conditions was not established from these sources.
Charging
Charging	55 W charging; approximately 2.5 hours from 0% to 100% at 25°C with robot docked and drying disabled. Regional voltage/radio variants and firmware can change the experience.	Automatically returns to the dock after cleaning or when charge is low, and resumes incomplete cleaning after charging. Begin from the dock and keep the dock in place for reliable return.
Runtime conditions
Runtime conditions	Maker 3-hour laboratory runtime is vacuum-only Quiet mode at 25°C, ending at 12% battery rather than zero; not mopping or maximum-suction endurance.	–
Dock
Dock	All specified docks collect dust, clean and dry mop pads and handle robot charging. P alone adds floor-deodorizer dispensing and dust-bag UV light; S and A expressly do not support those features. Deodorizer and UV are not universal ROMO functions. Manual water-tank and dust-bag servicing still applies.	RockDock automatically empties dust, refills the robot from its water tank and doses detergent. Maker maximum mop-washing water temperature 100°C and drying air 55°C; these are dock functions, not temperatures applied to the floor. Base and dust-bag drying are also supported.
Cleaning
Suction (maker's claim)
Suction (maker's claim)	25,000 Pa	36,000 Pa
Mopping
Mopping	Yes	Yes
Automatic emptying
Automatic emptying	Yes	Yes
Automatic mop washing
Automatic mop washing	Yes	Yes
Navigation
Navigation	Dual fisheye vision sensors and wide-angle solid-state LiDAR with active illumination. Manufacturer millimetre-level obstacle-recognition claims describe sensing under its test conditions, not guaranteed avoidance of every item.	StarSight 2.0 3D time-of-flight navigation with RGB obstacle recognition and lateral sensing. No raised navigation turret is required.
Cleaning
Cleaning	Dual split anti-tangle roller brushes and dual side brushes; extendable side brush and mop arm. A includes bristle-rubber brushes in its advanced package; S uses its standard anti-tangle roller package. Supplied brush/accessory counts depend on the exact regional bundle.	DuoDivide split main brush and extendable FlexiArm side brush. The chassis, main brush and mop modules adjust height according to the cleaning mode. Claimed dynamic cleaning for carpet pile up to 30 mm needs enabling in the app.
Mopping
Mopping	Dual mop pads with adjustable water delivery, automatic dirtiness detection, rewash/remop routines and mop lift for relevant carpet/vacuum-only modes. The maker A/S overview publishes a 164 ml onboard water tank; that value is not assigned to P without an exact P maker specification. Dock hot-water washing and drying are maintenance functions, not floor-wide sanitisation guarantees.	Two rotating mop discs; one extends towards edges. Pads can be lifted and automatically left at the dock for vacuum-only work. Maker maximum downward mop force 13 N.
Suction conditions
Suction conditions	Up to 25,000 Pa suction and up to 20 L/s airflow are manufacturer claims; electrical dock ratings do not describe vacuum suction output.	Maximum 36,000 Pa manufacturer suction claim. This is not a measured pickup result and does not establish comparative cleaning performance across brands.
Dust capacity
Dust capacity	Robot dustbin 260 ml; dock dust bag 2.4 L across P/A/S.	–
Water capacity
Water capacity	Water-tank dock clean-water tank 4 L and waste-water tank 3.2 L. This record covers removable-tank docks; direct-water-installation versions are not given these tank capacities.	–
Obstacle clearance
Obstacle clearance	Maker auxiliary ramp accessory helps cross thresholds up to 40 mm. This is an optional ramp-assisted claim, not unassisted 40 mm climbing or stair navigation.	Maker single-threshold claim up to 45 mm; double threshold up to 45 + 43 mm requires a gap greater than 120 mm and no more than 140 mm in its laboratory test. The 88 mm total is not a single vertical-step clearance.
Maintenance
Maintenance	Maker extended maintenance interval claims apply to the specified base-station system, not a promise that water tanks, brushes and dust bags can remain untouched for 200 days. Clean and replace parts according to the supplied instructions.	Manual calls for main-brush cleaning every two weeks, side-brush cleaning monthly and tank/filter care. Clean-water filling, dirty-water emptying and replacement dust bags remain necessary despite the dock automation.