Roborock Qrevo Edge 2 Flow vs Roborock Saros 20

Full specification, side by side

Compare	Roborock Roborock Qrevo Edge 2 Flow	Roborock Roborock Saros 20
	88/100 ≈ $650Price in the manufacturer's shop	87/100 $1,600Price in the manufacturer's shop
	Highest Verdict Score
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At a glance
Leads on	Mopping Reliability Value	Navigation Automation
Pros	270 mm pressurised self-cleaning roller that meters water to the floor 35,000 Pa with a carpet boost, the strongest Qrevo Roller lifts 15 mm and a flap seals it off on carpet	Solid-state 3D sensing with no turret: 80 mm tall and still maps in the dark Leaves the mop on the dock for carpet and lifts the chassis over 30 mm of pile 36,000 Pa with a fully anti-tangle brush and an extending side brush
Cons	The shop page's header copy belongs to another model No runtime, noise, bin or tank published 90 mm tall, a centimetre above the Edge 2	Roborock publishes neither the dustbin nor the water tank capacity One year of warranty No plumbed drain: the dirty-water tank is still emptied by hand
Best for	Kitchens and hard floors with dried-on spills Homes mixing rugs and hard floors, where the carpet flap matters	Homes with a mix of hard floors and carpet Low furniture that a LiDAR turret cannot fit under
Score breakdown
Verdict Score	88/100	87/100
Cleaning	93	93
Navigation	88	94
Mopping	97	92
Obstacle Avoidance	100	100
Automation	88	89
Ease of Use	94	94
Reliability	73	60
Value	57	40
SpecificationsOnly differences In green: the better figure where the direction is beyond argument, such as more lawn or less noise. Where it depends on your home, nothing is marked.
Cleaning
Suction	35,000 Pa	36,000 Pa
Brush system	Tangle-resistant	Tangle-resistant
Side brushes	1	1
Carpet boost	Yes	Yes
Dustbin	Not published	Not published
Navigation
Mapping	Retracting LiDAR	Solid-state 3D ToF + camera
Obstacle avoidance	Camera + depth sensor	Camera + depth sensor
Saved floor plans	Not published	Not published
Threshold climb	Not published	45 mm
Mopping
Mop type	Washed roller	Twin spinning pads
Mop lift	15 mm	Detaches for carpet
Extending mop	Yes	Yes
Water tank	Not published	Not published
Mop roller	270 mm high-density roller, SpiraFlow 2.0 pressurised self-cleaning	Not published
Roller reach at the edge	44 mm	Not published
Carpet shield	Roller lifts 15 mm and a flap closes over it	Not published
Dock
Self-emptying	Yes	Yes
Mop washing	Yes	Yes
Mop wash temperature	Not published	100 °C
Mop drying	Yes	Yes
Water refill	Yes	Yes
Plumbed drain	No	No
Dust bag interval	65 days	Not published
Warm-air drying	63 °C	131 °F / 55 °C
Dock size	402 × 470 × 451 mm	Not published
Total weight with dock	13.5 kg	Not published
Detergent dispensing	Not published	Automatic
Software
No-go zones	Yes	Yes
Pet recognition	Yes	Yes
Power
Battery	5,200 mAh	6,400 mAh
Runtime	Not published	Not published
Charging time	Not published	Not published
Connectivity
Wi-Fi	Yes	Yes
Bluetooth	No	Yes
4G / LTE	No	No
Voice control	Yes	Yes
Physical
Weight	5 kg	Not published
L × W × H	352 × 353 × 90 mm	Not published
Noise	Not published	Not published
Support
Warranty	Not published	12 months
Released	Not published	2026
Chassis
Carpet pile cleared	Not published	1.18 in / 30 mm
Obstacles
Recognised object types	Not published	300+

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