Roborock Qrevo Slim vs Roborock Saros Z70: Which to Buy

The Roborock Qrevo Slim is the better robot vacuum overall, rated 3.5 to 3.4. The Roborock Qrevo Slim leads on cleaning. The Roborock Saros Z70 wins on mopping. The Roborock Saros Z70 costs $100 less ($1,299.99 vs $1,399.99).

Prices were last checked November 11, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Higher rated

Roborock Qrevo Slim

#101 in Self-cleaning dock3.5Full review

Only worth it deeply discounted for very low furniture; newer slim Roborocks clean better for less.

Amazon $1,399.99

$1,399.99

Roborock Saros Z70

#102 in Self-cleaning dock3.4Full review

For early adopters who want a robot that tidies small clutter; buyers who just want clean floors get more for less elsewhere.

Amazon $1,299.99

$1,299.99

Which should you buy?

Choose the Roborock Qrevo Slim for cleaning (measured 76% of sand from carpet, 80% of pet hair, some hair tangled (0.2) vs measured 67% of sand from carpet, 83% of pet hair, some hair tangled (0.5)).
Choose the Roborock Saros Z70 for mopping (Dual spinning pads, leaves its mop at the dock for carpet, extends to edges vs Dual spinning pads, lifts 10 mm, extends to edges).

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.

Factor weight	Roborock Qrevo Slim	Roborock Saros Z70
Overall rating	3.5/5	3.4/5
Cleaning 30%	40 measured 76% of sand from carpet, 80% of pet hair, some hair tangled (0.2)	20 measured 67% of sand from carpet, 83% of pet hair, some hair tangled (0.5)
Value 25%	15 $1,400	20 $1,300
Dock 20%	100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup	100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup
Navigation 15%	100 LiDAR + camera	100 LiDAR + camera
Mopping 10%	76 Dual spinning pads, lifts 10 mm, extends to edges	86 Dual spinning pads, leaves its mop at the dock for carpet, extends to edges

Independent tests