Roborock - S9 MaxV Ultra reviews
Every piece of editorial coverage we have published on the Roborock - S9 MaxV Ultra, plus the formula behind its Mars Score.
vsMars editorial coverage
Roborock vs Dreame: Which Robot Vacuum Should You Buy in 2026?
Seven flagship docks, two brands, one spec that splits them. We match every Roborock and Dreame in our catalog on suction, climb height, battery, noise and price — and explain which one fits which home.
Best Robot Vacuums in 2026 — Buyer's Guide
The ten highest-scoring robot vacuums in our catalog — and the specification almost nobody checks that decides whether yours gets stuck every day.
Best Robot Vacuums in 2026 — Lidar Nav, Self-Empty Bases, Mopping
Roborock and Dreame still lead, with Eufy and iRobot closing on the mid-tier. What to buy by floor type and household.
Roborock S9 MaxV Ultra vs Dreame X40 Ultra — Pet Hair Pickup Lab
Standardized golden retriever hair distribution on three flooring types. Pickup percentage measured by pre/post weigh-in.
User review submissions open with our account system later this year. In the meantime, see the Mars Score methodology for how we score products without relying on crowd ratings.
See the head-to-head spec comparisons on the product page.