Released only months apart, the $1,399.99 Ecovacs Deebot X8 Pro Omni and the $1,599.99 Ecovacs Deebot X9 Pro Omni share many more similarities than differences. These robot floor cleaners systematically map your home, then thoroughly vacuum and mop while avoiding obstacles. After each cleaning run, they return to their respective base stations to charge, automatically empty their dustbins, and have their mops washed and dried. Notably, both use a clever roller mop that refreshes itself as it works. The X9, though, has a redesigned vacuuming system meant to optimize airflow and improve performance. Does that design warrant the $200 bump in price? I've extensively tested both models, so I'm breaking down the pros and cons of each to help you determine which high-end Ecovacs robot vacuum is a better fit for your home.

Both models are expensive, with the Deebot X9's $1,599.99 price making the Deebot X8’s $1,399.99 look a bit better by comparison. Like most robot vacuums, you’ll likely be able to find both at a steep discount around sales holidays like Amazon Prime Day and Black Friday.