− Reactive Tech obstacle avoidance stumbles on dark floors
− Reports of occasional dock water leaks
− Fixed mop arms (no extending edge-mop)
Roborock Saros Z70
Pros
+ 22,000Pa — highest suction available
+ Robotic arm picks up objects
+ Best obstacle avoidance
+ Premium build quality
Cons
− Very expensive at $2,299
− Arm feature still maturing
− Louder than competitors
− Smaller water tank
The Verdict
The Roborock Saros Z70 is the better choice with an overall score of 8.5/10 — best for tech enthusiasts who want the latest. The Roborock QV 35A is more affordable at $400 vs $2600.